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1. Enzymatic preparation of hydrophobic biomass with one-pot synthesis and the oil removal performance

Author:
Dan Peng; Wenjie Li; Xujun Liang; Liuchun Zheng; Xuetao Guo
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 105-116
ISSN:
1001-0742
Subject:
agricultural wastes; biomass; biosorbents; contact angle; corn stover; human health; hydrophobicity; laccase; lignin; oils; pith; pollution; sorbents; sorption; surfactants; synthesis; van der Waals forces; wastewater; China
Abstract:
... Oil pollution is causing deleterious damage to aquatic ecosystems and human health. The utilization of agricultural waste such as corn stalk (CS) to produce biosorbents has been considered an ecofriendly and efficient approach for removing oil. However, most previous studies focused on the modification of the whole CS, which is inefficient due to the heterogeneity of CS. In this study, corn stalk ...
DOI:
10.1016/j.jes.2021.10.019

2. A 2-D analytical model for the wetting behavior of various microtextured surfaces

Author:
P. Xu; J.R. Bai; P. Zhou; L.L. Wang; X.N. Sun; L. Wei; Q.F. Zhou
Source:
Colloids and surfaces 2022 v.636 pp. 127853
ISSN:
0927-7757
Subject:
Gibbs free energy; contact angle; energy; hydrophilicity; hydrophobicity; hysteresis; liquids; microstructure; models; vapors; wettability
Abstract:
... In this work, a physical model for various microtextured surfaces was proposed to investigate their wettability, and in particular, superhydrophobicity. Using such an analytical model, the thermodynamic states, and specifically, free energy and free energy barriers of the concerned surfaces such as trapezoidal, vertical and inverse-trapezoidal surfaces, which were correlated the contact angle and ...
DOI:
10.1016/j.colsurfa.2021.127853

3. A bioinspired approach to fabricate fluorescent nanotubes with strong water adhesion by soft template electropolymerization and post-grafting

Author:
Ananya Sathanikan; Giacomo Ceccone; Jorge Bañuls-Ciscar; Miaobo Pan; Fadwa Kamal; Talia Bsaibess; Anne Gaucher; Damien Prim; Rachel Méallet-Renault; Pascal Colpo; Sonia Amigoni; Frédéric Guittard; Thierry Darmanin
Source:
Journal of colloid and interface science 2022 v.606 pp. 236-247
ISSN:
0021-9797
Subject:
X-ray photoelectron spectroscopy; adhesion; contact angle; energy; equations; fluorescence; hydrophobicity; liquids; nanotubes; polymerization; polymers
Abstract:
... In this original work, we aim to control both the surface wetting and fluorescence properties of extremely ordered and porous conducting polymer nanotubes prepared by soft template electropolymerization and post-grafting. For reaching this aim, various substituents of different hydrophobicity and fluorescence were post-grafted and the post-grafting yields were evaluated by surface analyses. We sho ...
DOI:
10.1016/j.jcis.2021.08.013

4. A biorefinery approach for the conversion of Cynara cardunculus biomass to active films

Author:
Seyedeh Fatemeh Mirpoor; Simona Varriale; Raffaele Porta; Daniele Naviglio; Mariachiara Spennato; Lucia Gardossi; C. Valeria L. Giosafatto; Cinzia Pezzella
Source:
Food hydrocolloids 2022 v.122 pp. 107099
ISSN:
0268-005X
Subject:
Cynara cardunculus; antioxidant activity; biomass; biorefining; cardoons; contact angle; glycerol; hydrocolloids; hydrophobicity; leaf extracts; microstructure; oxygen; perennials; phenol; plasticizers; water solubility
Abstract:
... Cardoon (Cynara cardunculus), an herbaceous perennial plant able to grow with high productivity in dry and hot regions, as well as in unproductive soils, was used as a biomass source for the production of both bioactive compounds derived from leaves and proteins extracted from seeds. Naviglio® technology was found as an efficient method to obtain a cardoon leaf extract (CLE) characterized by high ...
DOI:
10.1016/j.foodhyd.2021.107099

5. A comparative study between two novel silicone/graphene-based nanostructured surfaces for maritime antifouling

Author:
Mohamed S. Selim; Nesreen A. Fatthallah; Shimaa A. Higazy; Zhifeng Hao; Ping Jing Mo
Source:
Journal of colloid and interface science 2022 v.606 pp. 367-383
ISSN:
0021-9797
Subject:
antibacterial properties; biodegradability; boehmite; comparative study; contact angle; crystal structure; field experimentation; graphene; graphene oxide; hot water treatment; hydrophobicity; image analysis; nanocomposites; nanorods; polydimethylsiloxane; roughness; seawater; surface area
Abstract:
... Two novel superhydrophobic nanocomposite series of polydimethylsiloxane (PDMS) enriched with reduced graphene oxide (RGO) and graphene oxide/boehmite nanorods (GO-γ-AlOOH) nanofillers were synthesized as maritime fouling-release (FR) surfaces. Controlling the nanofillers' structures and distribution in the silicone matrix influenced the self-cleaning and antifouling properties. γ-AlOOH nanorods ha ...
DOI:
10.1016/j.jcis.2021.08.026

6. A comparative study of mechanical and chemical durability of non-wetting superhydrophobic and lubricant-infused surfaces

Author:
S.M.A. Mousavi; R. Pitchumani
Source:
Colloids and surfaces 2022 v.643 pp. 128711
ISSN:
0927-7757
Subject:
comparative study; contact angle; corrosion; durability; electroplating; hydrophobicity; marine environment
Abstract:
... Fabrication of bioinspired non-wetting superhydrophobic surfaces (SHS) and lubricant-infused surfaces (LIS) has been studied extensively on a variety of materials. In contrast, durability of the surfaces exposed to harsh mechanical and chemical environments has been the subject of little attention. This study considers the mechanical and chemical durability of SHS and LIS copper surfaces fabricate ...
DOI:
10.1016/j.colsurfa.2022.128711

7. A comprehensive evaluation for microfluidic fuel cells from anti-vibration viewpoint using phase field theory

Author:
Tiancheng Ouyang; Jingxian Chen; Wenjun Liu; Peihang Xu; Jie Lu; Zhongkai Zhao
Source:
Renewable energy 2022 v.189 pp. 676-693
ISSN:
0960-1481
Subject:
anodes; carbon dioxide; contact angle; electronic equipment; fuel cells; liquids; mathematical theory; models; vibration
Abstract:
... Microfluidic fuel cell is an underlying clean power in the future, it is regarded as a new developing direction of power source in portable electronic device with its considerable power output and cleanness, but some challenges hinder it in putting into practical application. Vibration and two-phase flow are the two non-negligible factors which have an impact on the liquid-feed microfluidic fuel c ...
DOI:
10.1016/j.renene.2022.03.067

8. A contribution to flotation technique as a reliable wettability alteration measurement method for carbonate minerals in separation processes involving hydrocarbons, low salinity water and nanofluids

Author:
Mehdi Sadeghi; Rohallah Hashemi; Hamidreza Shahverdi
Source:
Colloids and surfaces 2022 v.633 pp. 127912
ISSN:
0927-7757
Subject:
carbonates; contact angle; hydrophilicity; nanofluids; oils; salinity; seawater; wettability
Abstract:
... A reliable flotation method was developed and experimentally evaluated as a fast and repeatable quantitative wettability measurement technique for Enhanced Oil Recovery (EOR) purposes by comparing its performance with the well-known and reliable method of contact angle measurement. In both methods, oil-wet carbonate specimens were contacted with brines of different salinities and nanoparticle conc ...
DOI:
10.1016/j.colsurfa.2021.127912

9. A durable superhydrophobic porous polymer coated sponge for efficient separation of immiscible oil/water mixtures and oil-in-water emulsions

Author:
Li Gong; Hongxia Zhu; Wenhao Wu; Daohui Lin; Kun Yang
Source:
Journal of hazardous materials 2022 v.425 pp. 127980
ISSN:
0304-3894
Subject:
absorbents; absorption; contact angle; durability; hydrophobicity; melamine; oils; polymers; skeleton; surface area
Abstract:
... Oil spills and organic solvents leakages have led to serious environmental problems, which calls for the emerging materials for the separation of oil/organic solvents from water effectively. Herein, a superhydrophobic/superoleophilic, SHMP-1@Sponge, with water contact angle (WCA) of 156° and oil contact angle of 0°, was fabricated by dip coating polymer SHMP-1 powder onto the skeleton of 3D melami ...
DOI:
10.1016/j.jhazmat.2021.127980

10. A facile and effective strategy to develop a super-hydrophobic/super-oleophilic fiberglass filter membrane for efficient micron-scale water-in-oil emulsion separation

Author:
Yujie Zhou; Lantao He; Linxi Wang; Gaoxiang Chen; Jianhong Luo
Source:
RSC advances 2022 v.12 no.6 pp. 3227-3237
ISSN:
2046-2069
Subject:
UHT treatment; contact angle; crosslinking; emulsions; energy; fiberglass; hydrophobicity; nanospheres; nanowires; particle size; silica
Abstract:
... In order to achieve efficient micron-scale water-in-oil emulsion separation, a facile and effective strategy is developed to prepare a super-hydrophobic/super-oleophilic fiberglass filter membrane (FGm). Methyl-trichlorosilane (MTS) is successfully cross-linked on the surface of the fiberglass filter membrane (FGm) and aggregates into a 3D nanowire array to provide low surface energy. Nano fumed h ...
DOI:
10.1039/d1ra08841f

11. A facile and fast preparation of robust superhydrophobic brass mesh coated with Cu(OH)2 nanowires by pulse electrodeposition for continuous highly efficient oil/water separation

Author:
Yonghui Zhang; Jiangwen Liu; Ligeng Ouyang; Kai Zhang; Guie Xie; Shuzhen Jiang
Source:
Colloids and surfaces 2022 v.634 pp. 127968
ISSN:
0927-7757
Subject:
abrasion resistance; contact angle; electroplating; gravity; hydrophobicity; nanowires; oils; wastewater
Abstract:
... Effective separation of industrial oily wastewater and oil leak has long been treated as an important link to ensure rapid and harmonious development of economy and society. In this article, a robust superhydrophobic/superlipophilic brass mesh with micro/nano dual-scale structures was successfully fabricated by a fast pulse electrodeposition followed by a two-step simple and nonfluorinated immersi ...
DOI:
10.1016/j.colsurfa.2021.127968

12. A facile method to prepare superhydrophobic nanocellulose-based aerogel with high thermal insulation performance via a two-step impregnation process

Author:
Caihong Chen; Chao Li; Deyou Yu; Minghua Wu
Source:
Cellulose 2022 v.29 no.1 pp. 245-257
ISSN:
0969-0239
Subject:
aerogels; air; cellulose; cellulose nanofibers; contact angle; freeze drying; hydrolysis; hydrophobicity; insulating materials; risk; silicon; siloxanes; thermal conductivity
Abstract:
... Nanocellulose aerogel is the third generation aerogel, and its highly interconnected porous network structure makes it an extraordinary thermal insulation material. However, there are abundant hydroxyl groups on the surface of cellulose nanofibrils, which causes the nanocellulose aeogels to absorb moisture in the air and the environment easily, thereby destroying their porous network structure and ...
DOI:
10.1007/s10570-021-04275-x

13. A fast and efficient method for the efficient recovery of crude oil from spent hydrodesulphurization catalyst

Author:
Jing Gao; Meng Hao; Tao Wu; Yujiang Li
Source:
Colloids and surfaces 2022 v.642 pp. 128650
ISSN:
0927-7757
Subject:
acetone; carbon; catalysts; chemical structure; combustion; contact angle; energy; gas chromatography-mass spectrometry; heat; hexane; methylene chloride; oils; particle size; petroleum; rheometers; solvents; temperature; viscosity; xylene
Abstract:
... The deoiling process is a critical issue in catalyst regeneration and recovery of precious metals from spent catalysts. This study developed a fast and efficient method to recover crude oil from spent hydrodesulphurization (HDS) catalysts. We employed four solvents (p-xylene, acetone, dichloromethane, and n-hexane) with different polar and aromatic properties to remove crude oil from the spent cat ...
DOI:
10.1016/j.colsurfa.2022.128650

14. A high-stable and sensitive colorimetric nanofiber sensor based on PCL incorporating anthocyanins for shrimp freshness

Author:
Li Liu; Junjun Zhang; Xiaobo Zou; Muhammad Arslan; Jiyong Shi; Xiaodong Zhai; Jianbo Xiao; Xin Wang; Xiaowei Huang; Zhihua Li; Yanxiao Li
Source:
Food chemistry 2022 v.377 pp. 131909
ISSN:
0308-8146
Subject:
Clitoria ternatea; ammonia; anthocyanins; color; colorimetry; contact angle; food chemistry; freshness; hydrophobicity; nanofibers; pH; permeability; shrimp; spoilage; water vapor
Abstract:
... A novel bilayer colorimetric film incorporating polycaprolactone (PCL) with clitoria ternatea Linn anthocyanin (CA) via electrospinning was designed. The PCL nanofibers layer acted as a protective layer against harsh environments as the strong hydrophobic with the WCA (water contact angle) values of 101.79°. The PCL-CA layer worked as an indicator for its significant color changes for pH. The sens ...
DOI:
10.1016/j.foodchem.2021.131909

15. A high-stable soybean-oil-based epoxy acrylate emulsion stabilized by silanized nanocrystalline cellulose as a sustainable paper coating for enhanced water vapor barrier

Author:
Xuwang Tian; Min Wu; Zhiwei Wang; Jian Zhang; Peng Lu
Source:
Journal of colloid and interface science 2022 v.610 pp. 1043-1056
ISSN:
0021-9797
Subject:
cellulose; chemical reactions; contact angle; dispersibility; emulsifiers; emulsions; epoxides; hydrophobicity; nanocrystals; oil-water interface; paper; polymers; soybean oil; surface tension; value added; viscoelasticity; water vapor; wettability
Abstract:
... Soybean-oil-based polymer is a promising bio-based water barrier coating on paper packaging but the application is challenged due to its poor water dispersibility. In this present study, 3-aminopropyltriethoxysilane (APTES) modified nanocrystalline cellulose (NCC) was used to implement a stable dispersion of acrylated epoxidized soybean oil (AESO) in water and thus synergistically improved the wat ...
DOI:
10.1016/j.jcis.2021.11.149

16. A hydrophobic-hydrophilic MXene/PVDF composite hollow fiber membrane with enhanced antifouling properties for seawater desalination

Author:
Tao Zhang; Xin Guo; Brusly Solomon; Mohsen Sharifpur; Li-Zhi Zhang
Source:
Journal of membrane science 2022 v.644 pp. 120146
ISSN:
0376-7388
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; air; contact angle; desalination; energy; hydrophilicity; hydrophobicity; moisture diffusivity; pollutants; reaction mechanisms; seawater; solar energy; surface roughness; thermoplastics
Abstract:
... Hollow fiber membrane-based humidification-dehumidification desalination of seawater is a low-carbon freshwater-harvesting technology that can be powered by low-grade solar energy. Polyvinylidene fluoride (PVDF) can be easily fabricated into membranes and is considered the most promising material for industrial seawater desalination. However, membrane fouling and wetting have always been major obs ...
DOI:
10.1016/j.memsci.2021.120146

17. A multi-function textile with pH-induced switch wettability transition for controllable oil−water separation

Author:
Long Feng; Yimiao Hou; Qingqing Hao; Mingxing Chen; Shuo Wang; Xuemin Hu; Wenxiu Yang
Source:
Textile research journal 2022 v.92 no.9-10 pp. 1357-1368
ISSN:
1746-7748
Subject:
contact angle; coprecipitation; durability; ecology; hydrophilicity; hydrophobicity; magnetism; nonwoven fabrics; oil spills; oils; photocatalysis; photolysis; polyamides; polyethylene terephthalates; research; sewage; wastewater; wettability
Abstract:
... The deterioration of water ecology caused by the discharge of oil spill wastewater, industrial sewage, and municipal sewage has attracted wide attention worldwide. Thus, it is significant to design a simple, environmentally friendly approach to separate oil–water mixtures. In this work, three different fabrics with pH-induced wettability transition were prepared by a dip-coating process for oil an ...
DOI:
10.1177/00405175211056981

18. A multifunction superhydrophobic surface with excellent mechanical/chemical/physical robustness

Author:
Zuozhu Yin; Dongpeng Zhou; Min Li; Xiaoxiang Chen; Mingshan Xue; Junfei Ou; Yidan Luo; Zhen Hong
Source:
Colloids and surfaces 2022 v.637 pp. 128258
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; abrasives; contact angle; corrosion; energy; hydrophobicity; polytetrafluoroethylene; roughness; sand; temperature; tensile strength; ultrasonic treatment; ultraviolet radiation
Abstract:
... Superhydrophobic surfaces have many advantages in wetting fields. However, the lack of easyily production methods and limited mechanical/chemical/physical robustness remain the two most pertinent barriers to the scalability, large-area production, and widespread use of superhydrophobic materials. In this work, a mechanical/chemical/physical robustness superhydrophobic coating sample consisting of ...
DOI:
10.1016/j.colsurfa.2022.128258

19. A multifunctional and environmentally safe superhydrophobic membrane with superior oil/water separation, photocatalytic degradation and anti-biofouling performance

Author:
Zuozhu Yin; Feng Yuan; Mingshan Xue; Yahui Xue; Yu Xie; Junfei Ou; Yidan Luo; Zhen Hong; Chan Xie
Source:
Journal of colloid and interface science 2022 v.611 pp. 93-104
ISSN:
0021-9797
Subject:
adhesion; antimicrobial properties; aqueous solutions; contact angle; cost effectiveness; human health; hydrophobicity; methylene blue; oils; photocatalysis; stearic acid; toxicity; ultraviolet radiation; wastewater; wastewater treatment; water solubility
Abstract:
... Wastewater is typically complicated with spilled oil, water soluble toxic dyes and microorganisms, making it hard to be processed and causing a significant threat to the environmental safety and human health. In this paper, we demonstrate a simple solution immersion method to obtain a multifunctional cellulose-based membrane (CBM) that possesses both superhydrophobicity with a water contact angle ...
DOI:
10.1016/j.jcis.2021.12.070

20. A new antibacterial insight of herbal chitosan-based membranes using thyme and garlic medicinal plant extracts

Author:
Hengameh Ahmadi; Mohsen Jahanshahi; Majid Peyravi; Ghasem Najafpour Darzi
Source:
Journal of cleaner production 2022 v.334 pp. 130114
ISSN:
0959-6526
Subject:
antifouling activities; chemical oxygen demand; chitosan; contact angle; garlic; medicinal plants; thyme; toxicity
Abstract:
... In order to overcome the problems caused by the release of toxic biocidal agents, both thyme and garlic as herbal antibacterial extracts were applied for the preparation of two novel chitosan-based membranes (TE-CS/PES and GE-CS/PES) by the surface modification of polyethersulfone (PES) membranes. Several analyses such as FESEM, contact angle, AFM, and FTIR confirmed that the chitosan layer was su ...
DOI:
10.1016/j.jclepro.2021.130114

21. A new scaling number reveals droplet dynamics on vibratory surfaces

Author:
Mingkai Song; Hongwei Zhao; Ting Wang; Shunbo Wang; Jie Wan; Xuezhi Qin; Zuankai Wang
Source:
Journal of colloid and interface science 2022 v.608 pp. 2414-2420
ISSN:
0021-9797
Subject:
contact angle; droplets; heat transfer; liquids; power generation; surface tension; vibration
Abstract:
... Droplet spreading on surfaces is a ubiquitous phenomenon in nature and is relevant with a wide range of applications. In practical scenarios, surfaces are usually associated with certain levels of vibration. Although vertical or horizontal modes of vibration have been used to promote droplet dewetting, bouncing from immiscible medium, directional transport, etc., a quantitative understanding of ho ...
DOI:
10.1016/j.jcis.2021.10.165

22. A novel amphiphilic Janus nano-silica for enhanced oil recovery in low-permeability reservoirs: An experimental study

Author:
Yun Bai; Chunsheng Pu; Shuai Liu; Xu Li; Lei Liang; Jing Liu
Source:
Colloids and surfaces 2022 v.637 pp. 128279
ISSN:
0927-7757
Subject:
adsorption; alkanes; contact angle; cost effectiveness; emulsions; environmental protection; face; glass; hydrophilicity; micropores; nanofluids; oil-water interface; oils; petroleum; surface tension; surfactants
Abstract:
... The hydrophilic nano-silica (HNS) has become a research hotspot in multiple fields due to its cost-effectiveness and environmental protection. However, due to the lack of the amphiphilic structure, the HNS is unable to reduce interfacial tension (IFT), which is adverse to the recovery of residual oil from reservoirs. Therefore, it is of great significance to prepare amphiphilic Janus nano-silica s ...
DOI:
10.1016/j.colsurfa.2022.128279

23. A novel composite membrane for simultaneous separation and catalytic degradation of oil/water emulsion with high performance

Author:
Linhua Rao; Xiujia You; Binghong Chen; Liguo Shen; Yanchao Xu; Meijia Zhang; Huachang Hong; Renjie Li; Hongjun Lin
Source:
Chemosphere 2022 v.288 pp. 132490
ISSN:
0045-6535
Subject:
antifouling activities; asymmetric membranes; contact angle; cost effectiveness; durability; emulsions; gravity; hydrophilicity; nanotubes; nickel; oils; p-nitrophenol; pollutants; surfactants; toxicity; ultrasonic treatment; wastewater
Abstract:
... It is of great significance to develop novel membranes with dual-function of simultaneously separating oil/water emulsion and degrading the contained water-miscible toxic organic components. To meet this requirement, a dual-functional Ni nanoparticles (NPs)@Ag/C-carbon nanotubes (CNTs) composite membrane was fabricated via electroless nickel plating strategy in this study. The as-prepared composit ...
DOI:
10.1016/j.chemosphere.2021.132490

24. A novel depressant HPAM of the hematite in reverse cationic flotation of iron ore

Author:
Wenjie Han; Yimin Zhu; Jie Liu; Yanjun Li
Source:
Colloids and surfaces 2022 v.641 pp. 128547
ISSN:
0927-7757
Subject:
adsorption; contact angle; hematite; hydrogen bonding; hydrolysis; hydrophilicity; pH; polyacrylamide; quartz; zeta potential
Abstract:
... Reverse cationic flotation is an important method for iron ore flotation. In this process, it is particularly important to find efficient, environmentally friendly and inexpensive hematite depressants. Hydrolyzed polyacrylamide (HPAM), an inexpensive and environmentally friendly synthetic polymer organic reagent, was studied for the first time in this field. In this paper, the separation effect of ...
DOI:
10.1016/j.colsurfa.2022.128547

25. A pore-size tunable superhydrophobic membrane for high-flux membrane distillation

Author:
Seong Kyung Hong; Hyonguk Kim; Haran Lee; Geunbae Lim; Seong J. Cho
Source:
Journal of membrane science 2022 v.641 pp. 119862
ISSN:
0376-7388
Subject:
contact angle; distillation; electrospraying; freshwater; hydrophobicity; liquids; longevity; mechanical stress; porosity; temperature
Abstract:
... Membrane distillation (MD) has recently attracted attention as a promising solution to the freshwater crisis. We report a pore-size tunable superhydrophobic membrane for application in the MD process. The tuning of the pore size is accomplished by applying mechanical strain to the stretchable superhydrophobic (SS) membrane. The SS membrane was made using a simple fabrication process that involved ...
DOI:
10.1016/j.memsci.2021.119862

26. A robust air superhydrophilic/superoleophobic diatomite porous ceramic for high-performance continuous separation of oil-in-water emulsion

Author:
Xiaojian Li; Lei Han; Zhong Huang; Zhi Li; Faliang Li; Hongjuan Duan; Liang Huang; Quanli Jia; Haijun Zhang; Shaowei Zhang
Source:
Chemosphere 2022 pp. 134756
ISSN:
0045-6535
Subject:
air; ceramics; compression strength; contact angle; corrosion; diatomaceous earth; emulsions; firmness; hydrophilicity; mechanical properties; oils; permeability; remediation; temperature; wettability
Abstract:
... Three-dimensional (3D) porous architecture has attracted considerable attention in remediation of oil/water emulsion. In present work, an air superhydrophilic/superoleophobic diatomite porous ceramic (AS-DC) was prepared, using SiO₂ whiskers modified diatomite ceramic as the substrate and FS-50 as the modifier. The interconnected SiO₂ whiskers intertwined on the skeleton of ceramic block forming a ...
DOI:
10.1016/j.chemosphere.2022.134756

27. A simple approach for fabrication of superhydrophobic titanium surface with self-cleaning and bouncing properties

Author:
T.P. Rasitha; C. Thinaharan; S.C. Vanithakumari; John Philip
Source:
Colloids and surfaces 2022 v.636 pp. 128110
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; abrasion resistance; adhesion; contact angle; energy; energy-dispersive X-ray analysis; hydrophobicity; oxidation; stearic acid; titanium
Abstract:
... A simple, scalable, rapid and eco-friendly method for the fabrication of superhydrophobic (SHP) titanium surface was developed using rapid breakdown anodization (RBA) for the first time. The desired hierarchical surface morphology for superhydrophobicity is achieved by controlling the RBA process parameters and low surface energy modification by using stearic acid (SA). The prepared samples were c ...
DOI:
10.1016/j.colsurfa.2021.128110

28. A simple empirical model for phenanthrene adsorption on soil clay minerals

Author:
Nan Zhao; Feng Ju; Quanwei Song; Hui Pan; Hao Ling
Source:
Journal of hazardous materials 2022 v.429 pp. 127849
ISSN:
0304-3894
Subject:
adsorbents; adsorption; cation exchange capacity; clay; contact angle; density functional theory; empirical models; hydrophobicity; molecular dynamics; phenanthrenes; quantitative analysis; surface area; van der Waals forces
Abstract:
... Soil clay minerals are effective substrate adsorbents of polycyclic aromatic hydrocarbons (PAHs) in natural soil. The adsorbed PAHs result in long-term contamination of soils. In this paper, a typical PAH phenanthrene (Phe) and nine high purity clay minerals are selected as representative PAH pollutants and adsorbents, respectively. A series of experiments have been conducted to disclose the relat ...
DOI:
10.1016/j.jhazmat.2021.127849

29. A soft Pickering emulsifier made from chitosan and peptides endows stimuli-responsiveness, bioactivity and biocompatibility to emulsion

Author:
Xinyu Meng; Huan Liu; Xinyu Dong; Qiqi Wang; Yongmei Xia; Xueyi Hu
Source:
Carbohydrate polymers 2022 v.277 pp. 118768
ISSN:
0144-8617
Subject:
antioxidants; biocompatibility; chitosan; contact angle; cosmetics; curcumin; drugs; emulsifiers; emulsions; encapsulation; hydrophobicity; pH; peptides; pharmaceutical industry; polymers; thermal stability
Abstract:
... Polymeric Pickering emulsifiers may bring new insights to emulsion theory and practice due to their soft characters. Herein, a group of soft Pickering emulsifiers, chitosan-casein hydrophobic peptides nanoparticles (CS-CHP NPs) were prepared with a non-covalent anti-solvent procedure. The CS-CHP NPs provided the contact angles of 37.2°-87.4°, stabilizing O/W or W/O emulsions with enhanced thermal ...
DOI:
10.1016/j.carbpol.2021.118768

30. A strong, hydrophobic, transparent and biodegradable nano-lignocellulosic membrane from wheat straw by novel strategy

Author:
Chuanwei Zhang; Pengfei Zhang; Lianjun Cheng; Jianyong Li; Ranran Jian; Maocheng Ji; Fangyi Li
Source:
Journal of cleaner production 2022 v.356 pp. 131879
ISSN:
0959-6526
Subject:
aqueous solutions; biocomposites; biodegradability; cellulose; centrifugation; chemical composition; contact angle; hemicellulose; hydrogen bonding; hydrophobicity; latex; lignin; lignocellulose; slurries; starch; tensile strength; urea; wheat straw
Abstract:
... Wheat straw is a potentially natural material for production of bio-composites due to its chemical composition. Lignin, cellulose and hemicellulose are closely connected in wheat straw and difficult to separate for nano-lignocellulose in high valuable application. The work presented a clean and simple way to prepare biodegradable nano-lignocellulosic membrane with high mechanical strength and wate ...
DOI:
10.1016/j.jclepro.2022.131879

31. A superhydrophobic polyphenylene sulfide composite coating with anti-corrosion and self-cleaning properties for metal protection

Author:
Hui Zheng; Wentong Liu; Simin He; Rui Wang; Jianchen Zhu; Xudong Guo; Nijuan Liu; Ruibin Guo; Zunli Mo
Source:
Colloids and surfaces 2022 v.648 pp. 129152
ISSN:
0927-7757
Subject:
contact angle; corrosion; electrochemistry; heat stability; hydrophobicity; sulfides; thermogravimetry
Abstract:
... The poor corrosion resistance of metals has greatly limited its application. In this work, a simple spraying method was used for preparing SiO₂/HDTMS-ZnO/PPS superhydrophobic composite coating. The water contact angle of the obtained coating is (150 ± 1) °, and the sliding angle is (3 ± 1) °. Due to its good hydrophobicity, it can resist muddy water. The test results of thermogravimetric (TG) indi ...
DOI:
10.1016/j.colsurfa.2022.129152

32. A toilless quasi-superhydrophobic surface of round cake, microsphere and spindle with high contact angle and high adhesion

Author:
Xu Ye; Yuanyuan Li; Yan Zhang; Ping Wang; Dongmei Hu
Source:
Colloids and surfaces 2022 v.641 pp. 128583
ISSN:
0927-7757
Subject:
adhesion; cakes; contact angle; durability; electric potential difference; electrospraying; hydrophobicity; microparticles; polyurethanes
Abstract:
... The preparation of superhydrophobic polyurethane by fluorination poses a potential threat to the environment. Herein, we introduce a quasi-superhydrophobic surface with high water contact angle (CA) and high adhesion via eletrospraying. By regulation of concentration, voltage or flow velocity, various structures such as round cakes, microspheres and micro-spindles can be facilely fabricated. Also, ...
DOI:
10.1016/j.colsurfa.2022.128583

33. Accelerated biodegradation of polyethylene terephthalate by Thermobifida fusca cutinase mediated by Stenotrophomonas pavanii

Author:
Qing-Song Huang; Zheng-Fei Yan; Xiao-Qian Chen; Yan-Yi Du; Juan Li; Zhan-Zhi Liu; Wei Xia; Sheng Chen; Jing Wu
Source:
Science of the total environment 2022 v.808 pp. 152107
ISSN:
0048-9697
Subject:
Comamonas; Stenotrophomonas; Thermobifida fusca; biodegradation; biofilm; carbon; cell viability; contact angle; cutinase; environment; hydrophilicity; plastics; polyethylene terephthalates; weight loss
Abstract:
... Polyethylene terephthalate (PET) is a general plastic that produces a significant amount of waste due to its non-biodagradable properties. We obtained four bacteria (Stenotrophomonas pavanii JWG-G1, Comamonas thiooxydans CG-1, Comamonas koreensis CG-2 and Fulvimonas soli GM-1) that utilize PET as a sole carbon source through a novel stepwise screening and verification strategy. PET films pretreate ...
DOI:
10.1016/j.scitotenv.2021.152107

34. Achieving Superhydrophobic Surfaces via Air-Assisted Electrospray

Author:
Thu Nguyen; Philip Wortman; Zizhou He; Joshua Goulas; Hui Yan; Mehdi Mokhtari; Xiao-Dong Zhou; Ling Fei
Source:
Langmuir 2022 v.38 no.9 pp. 2852-2861
ISSN:
1520-5827
Subject:
contact angle; hydrophobicity; polyacrylonitrile; silica; wettability
Abstract:
... Superhydrophobic surface is an enabling technology in numerous emerging and practical applications such as self-cleaning, anticorrosion, antifouling, anti-icing coatings, and oil–water separation. Here, we report a facile air-assisted electrospray approach to achieve a superhydrophobic surface by systematically studying spray conditions and the chemistry of a coating precursor solution consisting ...
DOI:
10.1021/acs.langmuir.1c03134

35. Active gelatin/cress seed gum-based films reinforced with chitosan nanoparticles encapsulating pomegranate peel extract: Preparation and characterization

Author:
Maral Soltanzadeh; Seyed Hadi Peighambardoust; Babak Ghanbarzadeh; Sajed Amjadi; Maryam Mohammadi; José M. Lorenzo; Hamed Hamishehkar
Source:
Food hydrocolloids 2022 v.129 pp. 107620
ISSN:
0268-005X
Subject:
X-ray diffraction; atomic force microscopy; chitosan; contact angle; gelatin; hydrocolloids; hydrophobicity; nanocomposites; plant gums; pomegranates; roughness; tensile strength; thermal stability; transmittance
Abstract:
... The aim of this study was to evaluate the effect of chitosan nanoparticles (CSNPs) incorporating pomegranate peel extract on properties of composite gelatin/cress seed gum films. The moisture barrier properties of active films were improved by 65% as function of adding CSNPs. Water contact angle (WCA) measurement exhibited hydrophobic surfaces with WCA of 108–119°. Reinforced films with 6% CSNPs s ...
DOI:
10.1016/j.foodhyd.2022.107620

36. Adhesion force evolution of protein on the surfaces with varied hydration extent: Quantitative determination via atomic force microscopy

Author:
Yuyao Zhang; Xiaoying Zhu; Baoliang Chen
Source:
Journal of colloid and interface science 2022 v.608 pp. 255-264
ISSN:
0021-9797
Subject:
adhesion; adsorption; air; atomic force microscopy; bovine serum albumin; contact angle; energy; evolution; humic acids; hydrophobicity; ionic strength; liquid-solid interface; pH; quantitative analysis; roughness; spectroscopy
Abstract:
... The adhesion force evolution of protein on surfaces with continuously varied hydrophobicity/hydration layer has not been completely clarified yet, limiting the further development of environmental applications such as membrane anti-biofouling and selective adsorption of the functional surfaces. Herein, chemical force spectroscopy using atomic force microscopy (AFM) was utilized to quantify the evo ...
DOI:
10.1016/j.jcis.2021.09.131

37. Adhesion interaction of one-component polyurethane in cross-laminating southern pine wood treated with micronized copper azole—type C (MCA-C)

Author:
Lili Cai; Byung-Dae Park; Minseok Kim; Dragica Jeremic; Hyungsuk Lim
Source:
European journal of wood and wood products 2022 v.80 no.2 pp. 419-427
ISSN:
0018-3768
Subject:
Pinus; adhesion; contact angle; latewood; polyurethanes; wettability; wood
Abstract:
... Compatibility between preservative and resin plays an important role in determining the adhesive performance of preservative-treated engineered wood products. This study aims to elucidate the interactions between micronized copper azole—type C (MCA-C) treated southern pine (Pinus spp.) at two retention levels and one-component polyurethane resin (PU). The surface wettability of both untreated and ...
DOI:
10.1007/s00107-021-01776-1

38. Adhesion-Shielding based synthesis of interfacially active magnetic Janus nanoparticles

Author:
Fan Yang; Xiao He; Wen Tan; Gang Liu; Tingting Yi; Qingye Lu; Xiaoting Wei; Hanjie Xie; Qiurong Long; GuiChao Wang; Chuanfei Guo; Erica Pensini; Zhouguang Lu; Qingxia Liu; Zhenghe Xu
Source:
Journal of colloid and interface science 2022 v.607 pp. 1741-1753
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; contact angle; droplets; magnetic fields; oils; surface tension; thermogravimetry; wastewater; wettability
Abstract:
... A unique adhesion-shielding (AS)-based method could be used to manufacture magnetic Janus nanoparticles (IM-JNPs) of promising interfacial activities, asymmetric surface wettability, and great performance on deoiling from oily wastewater under the external magnetic field. The IM-JNPs were characterized using scanning electron microscope (SEM), X-ray diffraction (XRD), thermogravimetric analysis (T ...
DOI:
10.1016/j.jcis.2021.08.202

39. Adopting Intrinsic Hydrophilic Thermoplastic Starch Composites to Fabricate Antifogging Sustainable Films with High Antibiosis and Transparency

Author:
Quanfa Zhong; Bingbing Gao; Yunxuan Weng; Shuidong Zhang
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3661-3672
ISSN:
2168-0485
Subject:
COVID-19 infection; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; adsorption; antibiosis; benzoic acid; cold; contact angle; crystal structure; glycerol; green chemistry; hydrogen; hydrophilicity; roughness; scanners; small-angle X-ray scattering; starch; thermoplastics; transmittance
Abstract:
... Fogging on transparent surfaces such as goggles causes a series of hazards to users. To fabricate antifogging and low-haze transparent renewable polymer materials, intrinsic hydrophilicity with high water adsorption capability of thermoplastic starch (TPS) had been adopted. Strikingly, when benzoic acid (BA) was blended with thermoplastic starch (TPS-BA), the haze of TPS-BA was only 7.8% when it s ...
DOI:
10.1021/acssuschemeng.1c08660

40. Adsorption and depression mechanism of an eco-friendly depressant dextrin onto fluorite and calcite for the efficiency flotation separation

Author:
Yuangan Chen; Bo Feng; Huashan Yan; Liangzhu Zhang; Chunhui Zhong; Tao Wang; Huihui Wang; Longhua Xu
Source:
Colloids and surfaces 2022 v.635 pp. 127987
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorption; calcite; calcium; contact angle; dextrins; energy; hydrophilicity; hydrophobicity; sodium dodecyl sulfonate
Abstract:
... In this work, dextrin, an effective and eco-friendly organic compound, was used to separate fluorite from calcite. The depression performance and adsorption mechanism of it on the calcite surface were investigated by flotation experiments, contact angle measurements, Fourier transform infrared spectroscopy (FTIR) measurements, and X-ray photoelectron spectroscopy (XPS) analyses. The results showed ...
DOI:
10.1016/j.colsurfa.2021.127987

41. Adsorption and detection of heavy metals from aqueous water by PVDF/ATP-CDs composite membrane

Author:
Haiyang Zhao; Dongdong Zhang; Heyu Sun; Yiping Zhao; Manman Xie
Source:
Colloids and surfaces 2022 v.641 pp. 128573
ISSN:
0927-7757
Subject:
adsorption; asymmetric membranes; contact angle; fluorescence; fluorescent dyes; heavy metals; permeability; pollution; toxicity; water treatment; wettability
Abstract:
... The irreversibility, long-term and toxicity variability of heavy metal ion pollution make it necessary to eliminate it through reasonable detection methods and control methods. carbon dots (CDs) are an efficient fluorescent probe widely used in the detection of heavy metal ions, but the difficulty of recycling nanomaterials limits its practicability. Herein, by reacting CDs with attapulgite (ATP) ...
DOI:
10.1016/j.colsurfa.2022.128573

42. Adsorption behavior of anthraquinones in deep eutectic solvent on polyester fiber and its application

Author:
Dan Cao; Min Liu; Yung-Chih Su; Zehui Yang; Wentao Bi; David Da Yong Chen
Source:
Sustainable chemistry and pharmacy 2022 v.27 pp. 100680
ISSN:
2352-5541
Subject:
Fourier transform infrared spectroscopy; adsorption; anthraquinones; contact angle; dyes; energy; green chemistry; hydrogen bonding; nuclear magnetic resonance spectroscopy; pollutants; polyesters; solvents; temperature; tensile strength; textile industry; thermogravimetry; toxicity; ultraviolet-visible spectroscopy
Abstract:
... Deep eutectic solvents (DESs can be used to facilitate the adsorption of anthraquinone dyes into polyester fabrics (PETFs) in facile conditions. The adsorption mechanism was investigated through a systematic characterisation study using methods including ¹H nuclear magnetic resonance spectroscopy, ultraviolet–visible spectroscopy, scanning electron microscopy, Fourier transform infrared spectrosco ...
DOI:
10.1016/j.scp.2022.100680

43. Adsorption performance of human-like collagen by alkali-modified Kapok fiber: a kinetic, equilibrium, and mechanistic investigation

Author:
Liyao Cao; Hongchang Wang; Hua Shen; Ruiliu Wang; Fumei Wang; Guangbiao Xu
Source:
Cellulose 2022 v.29 no.6 pp. 3177-3193
ISSN:
0969-0239
Subject:
absorption; adsorption; biomass; cellulose; collagen; contact angle; energy; hemicellulose; hydrophilicity; hydrophobicity; kapok; kinetics; lignin; models
Abstract:
... Collagen-based dressings achieve excellent repair of the skin during metical cosmetology, which has received a lot of attention recently. Although great progress has been made on using biomass fiber as dressing carrier, more research is required on developing novel biomass fibers because of the limitations of (i.e., high cost and complex processing) of existing materials. In this study, the adsorp ...
DOI:
10.1007/s10570-022-04489-7

44. Aliphatic Polyurethane Films Based on Hexamethylene Diisocyanate and Saccharides for Biocompatible Transparent Coating on Optic Medical Devices

Author:
Canbolat Gürses; Merve Gökşin Karaaslan‐Tunç; Ünzile Keleştemur; Sevgi Balcıoğlu; Selam Gülgen; Süleyman Köytepe; Burhan Ateş
Source:
Stärke = 2022 v.74 no.3-4 pp. e2100214
ISSN:
0038-9056
Subject:
biocompatibility; colonoscopy; contact angle; cytotoxicity; polyethylene; polyurethanes; starch; sucrose; textile industry; thermogravimetry; xylose
Abstract:
... Polyurethanes are widely used in daily life, from the textile industry to medical applications. In this study, a biocompatible and transparent coating from polyethylene glycol‐based polyurethanes including different type of saccharide (xylose as monosaccharide, sucrose as disaccharide, or starch as polysaccharide) is prepared. Prepared optically transparent polyurethanes are characterized with dif ...
DOI:
10.1002/star.202100214

45. All-natural protein-polysaccharide conjugates with bead-on-a-string nanostructures as stabilizers of high internal phase emulsions for 3D printing

Author:
Yucheng Zong; Qun Kuang; Guangjian Liu; Ren Wang; Wei Feng; Hao Zhang; Zhengxing Chen; Tao Wang
Source:
Food chemistry 2022 v.388 pp. 133012
ISSN:
0308-8146
Subject:
contact angle; food chemistry; heat tolerance; mushrooms; oils; polysaccharides; storage quality; storage time
Abstract:
... The combination of proteins and polysaccharides creates an exceptional platform for stabilizing biphasic systems such as oil in water emulsions. In this paper, we propose the use of natural protein-polysaccharide conjugates (PPCs) extracted from shiitake mushroom roots to stabilize high internal phase emulsions (HIPEs). The PPCs had bead-on-a-string nanostructures with bead (300 nm in diameter) an ...
DOI:
10.1016/j.foodchem.2022.133012

46. Altering the Surface Properties of Metal Alloys Utilizing Facile and Ecological Methods

Author:
Franceska Gojda; Michalis Loulakis; Lampros Papoutsakis; Stelios Tzortzakis; Kiriaki Chrissopoulou; Spiros H. Anastasiadis
Source:
Langmuir 2022 v.38 no.16 pp. 4826-4838
ISSN:
1520-5827
Subject:
adhesion; alloys; chemical composition; contact angle; equipment; heat; hydrophobicity; hysteresis; irradiation; surface roughness; temperature
Abstract:
... The development of a superhydrophobic and, even, water-repellent metal alloy surface is reported utilizing a simple, fast, and economical way that requires minimum demands on the necessary equipment and/or methods used. The procedure involves an initial irradiation of the metallic specimen using a femtosecond laser, which results in a randomly roughened surface, that is subsequently followed by pl ...
DOI:
10.1021/acs.langmuir.1c03431

47. Amelioration of pool boiling thermal performance utilizing graphene-silver hybrid nanofluids

Author:
Xu Ma; Yindong Song; Yang Wang; Shouguang Yao; Kambiz Vafai
Source:
Powder technology 2022 v.397 pp. 117110
ISSN:
0032-5910
Subject:
cameras; contact angle; heat transfer; hydrophilicity; hydrophobicity; liquids; nanocomposites; nanofluids; vapors; wettability
Abstract:
... Graphene nanoplatelets (GNP) have natural hydrophobicity and are not easy to disperse in deionized (DI) water. In this study, Ag modified functionalized GNP (f-GNP) was used to prepare novel hybrid nanoparticles. Through phase and structural analysis, it is found that the material has high purity, and is dispersed in DI water to produce the nanofluids that are stable. The boiling heat transfer pro ...
DOI:
10.1016/j.powtec.2022.117110

48. Amphiphilic Alginate-Based Layer-by-Layer Coatings Exhibiting Resistance against Nonspecific Protein Adsorption and Marine Biofouling

Author:
Thuvarakhan Gnanasampanthan; Jana F. Karthäuser; Stephan Spöllmann; Robin Wanka; Hans-Werner Becker; Axel Rosenhahn
Source:
ACS applied materials & interfaces 2022 v.14 no.14 pp. 16062-16073
ISSN:
1944-8252
Subject:
Navicula; adsorption; alginates; antifouling activities; biodegradability; biofouling; biopolymers; contact angle; hydrophilicity; hydrophobicity; polyethyleneimine; water binding capacity
Abstract:
... Amphiphilic coatings are promising materials for fouling-release applications, especially when their building blocks are inexpensive, biodegradable, and readily accessible polysaccharides. Here, amphiphilic polysaccharides were fabricated by coupling hydrophobic pentafluoropropylamine (PFPA) to carboxylate groups of hydrophilic alginic acid, a natural biopolymer with high water-binding capacity. L ...
DOI:
10.1021/acsami.2c01809

49. Amphiphobic electrospun PTFE nanofibrous membranes for robust membrane distillation process

Author:
Mengdi Xu; Jinxue Cheng; Xiongfei Du; Qiang Guo; Yan Huang; Qinglin Huang
Source:
Journal of membrane science 2022 v.641 pp. 119876
ISSN:
0376-7388
Subject:
contact angle; distillation; hydrophobicity; hypersalinity; nanofibers; oils; polyacrylonitrile; polytetrafluoroethylene; silane; solutes; surfactants; wastewater
Abstract:
... Membrane distillation (MD) has been identified as a promising technology to desalinate the saline wastewater owing to its unique advantages including its ability in treating hypersaline solutions, 100% (theoretical) solute rejection and mild operating conditions. However, polytetrafluoroethylene (PTFE) hydrophobic membranes used for MD process were prone to be wetted caused by fouling due to the a ...
DOI:
10.1016/j.memsci.2021.119876

50. An analytical model for evaluating fluid flux across carbon-based membrane

Author:
Zhewen Zhu; Shiyu Lv; Qingwei Gao; Shuangliang Zhao; Xiaohua Lu
Source:
Journal of membrane science 2022 v.644 pp. 120157
ISSN:
0376-7388
Subject:
contact angle; mass transfer; models; nanopores; porosity
Abstract:
... A mass transfer model of fluid across membranes is developed by taking into account the entrance/exit effect and molecular slipping in nanopores. This model, involving the molecular interaction parameters between fluid and nanopore, can accurately predict water fluxes across different practical membranes, and the discrepancy between predictions and reported experimental measurements can be reduced ...
DOI:
10.1016/j.memsci.2021.120157

51. An anti-icing copper-based superhydrophobic layer prepared by one-step electrodeposition in both cathode and anode

Author:
Quanhai Fan; Xu Ji; Qing Lan; Hailin Zhang; Qiumei Li; Shitong Zhang; Bianfeng Yang
Source:
Colloids and surfaces 2022 v.637 pp. 128220
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; anodes; cathodes; chemical composition; contact angle; copper; electric potential difference; electroplating; hydrophobicity; wettability
Abstract:
... The superhydrophobic layers were prepared simultaneously on the copper-based cathode and anode surface by one-step electrodeposition. During the electrodeposition process, the reactions on the surfaces of copper-based cathode/anode electrodes were different, therefore different superhydrophobic layers were formed on cathode/anode surface. The wettability, surface morphology and chemical compositio ...
DOI:
10.1016/j.colsurfa.2021.128220

52. An eco-friendly wood adhesive based on waterborne polyurethane grafted with gelatin derived from chromium shavings waste

Author:
Mao Yang; Yanchun Li; Xugang Dang
Source:
Environmental research 2022 v.206 pp. 112266
ISSN:
0013-9351
Subject:
chromium; composite polymers; contact angle; copolymerization; emulsions; gelatin; polyurethanes; research; temperature; tensile strength; wastes; weight loss; wood
Abstract:
... An environmentally friendly wood adhesive developed from waterborne polyurethane (WPU) grafted gelatin (G) was investigated in this research. First, the G was extracted from chromium shavings waste, and then mixed with a prepolymer emulsion of WPU to synthesis the graft copolymer (WPUG) via a solvent-free emulsion copolymerization. The synthesized copolymer was characterized using the mechanical p ...
DOI:
10.1016/j.envres.2021.112266

53. Anisotropic wetting characteristics of droplet on micro-grooved surface

Author:
Yi Ding; Li Jia; Liaofei Yin; Chao Dang; Xinyuan Liu; Jinzhu Xu
Source:
Colloids and surfaces 2022 v.633 pp. 127850
ISSN:
0927-7757
Subject:
Gibbs free energy; anisotropy; contact angle; droplets; gravity; lab-on-a-chip technology; transportation
Abstract:
... Anisotropic wetting characteristics of droplet play an important role in a wide applications including directional droplet transportation and microfluidics in lab-on-a-chip. The anisotropic wetting shape of droplet on micro-grooved surface in Cassie-Baxter state was studied in experiment and simulation, and the corresponding droplet free energy was calculated in simulation. The stability of Cassie ...
DOI:
10.1016/j.colsurfa.2021.127850

54. Annealing Effect on Pla/Eva Blends Performance

Author:
Eduardo da Silva Barbosa Ferreira; Carlos Bruno Barreto Luna; Danilo Diniz Siqueira; Edcleide Maria Araújo; Danyelle Campos de França; Renate Maria Ramos Wellen
Source:
Journal of polymers and the environment 2022 v.30 no.2 pp. 541-554
ISSN:
1566-2543
Subject:
biodegradability; brittleness; contact angle; crystal structure; environment; hardness; impact strength; modulus of elasticity; rheometry; torque; viscosity
Abstract:
... PLA has aroused industrial and scientific interest in recent years, mainly due to its biodegradable character. However, PLA is brittle and displays low impact strength which has motivated researches to improve its toughness. The present work aims to produce PLA/EVA blends, and to investigate the EVA effect on PLA as well as the annealing which carried out at 90 °C for 5 h and provided increase in ...
DOI:
10.1007/s10924-021-02220-4

55. Anti-biofouling functional surfaces for marine aquaculture

Author:
Harrison J. Cox; Isaac Cooper; Heinrich F. Kaspar; Michael A. Packer; Jas Pal S. Badyal
Source:
Colloids and surfaces 2022 v.639 pp. 128313
ISSN:
0927-7757
Subject:
Chaetoceros calcitrans; algae culture; antifouling activities; biofouling; bioreactors; contact angle; hydrodynamics; hydrophilicity; hydrophobicity; industry; infrastructure; mariculture; microalgae; polymers; risk; toxicity; wettability
Abstract:
... Aquaculture is a global-scale industry providing sustainable production of protein-rich foods required to feed the growing world population. Microalgae cultivation in aquaculture bioreactors can exude extracellular polymeric substances leading to biofouling of culture infrastructure and increased algal disease risk. A structure–behaviour relationship was developed by examining how the surface wett ...
DOI:
10.1016/j.colsurfa.2022.128313

56. Antibacterial chitosan-Dioscorea alata starch film enriched with essential oils optimally prepared by following response surface methodology

Author:
Annisa Istiqomah; Maryam Rahmi Utami; Maulidan Firdaus; Venty Suryanti; Triana Kusumaningsih
Source:
Food bioscience 2022 v.46 pp. 101603
ISSN:
2212-4292
Subject:
Aloe vera; Cymbopogon; Dioscorea alata; Escherichia coli; Salmonella Typhi; Staphylococcus aureus; Staphylococcus epidermidis; biodegradability; chitosan; composite films; contact angle; garlic; glycerol; industry; modulus of elasticity; oils; petroleum; polymers; response surface methodology; solubility; starch; tensile strength; water content
Abstract:
... Numerous endeavours have been developed bio-based polymer packaging films to replace the use of petroleum-based packaging. In this study, as a response and support to the enduring research issues, we have developed the optimization composite film formulation based on chitosan (2%), Dioscorea alata starch (0.5%), and glycerol (1.5%) had satisfactory result on several parameters consisting thickness ...
DOI:
10.1016/j.fbio.2022.101603

57. Antifungal and physicochemical properties of Ocimum essential oil loaded in poly(lactic acid) nanofibers

Author:
Rafaela Magalhães Brandão; Maria das Graças Cardoso; Luís Roberto Batista; Alex Rodrigues Silva Caetano; Ana Carolina Cortez Lemos; Maria Alice Martins; David Lee Nelson; Juliano Elvis De Oliveira
Source:
Letters in applied microbiology 2022 v.74 no.5 pp. 765-776
ISSN:
0266-8254
Subject:
Aspergillus ochraceus; Ocimum basilicum; Ocimum gratissimum; camphor; contact angle; crystal structure; encapsulation; essential oils; eugenol; fumigation; fungal growth; gas chromatography; human health; hydrodistillation; linalool; nanofibers; ochratoxin A; oils; plasticizers
Abstract:
... Poly(lactic acid) (PLA) nanofibres containing different proportions of the essential oils from Ocimum basilicum L. and Ocimum gratissimum L. were prepared by solution blow spinning method. The essential oils were extracted by hydrodistillation and characterized by gas chromatography. MEV, contact angle, DSC and FTIR were used to characterize the nanofibres. The effect of bioative nanofibres on the ...
DOI:
10.1111/lam.13661

58. Antimicrobial and antioxidant films formed by bacterial cellulose, chitosan and tea polyphenol – Shelf life extension of grass carp

Author:
Xiaoyan Zhou; Xiaoli Liu; Qi Wang; Guangming Lin; Huanbin Yang; Dawei Yu; Steve W. Cui; Wenshui Xia
Source:
Food packaging and shelf life 2022 v.33 pp. 100866
ISSN:
2214-2894
Subject:
Ctenopharyngodon idella; Fourier transform infrared spectroscopy; antioxidants; biodegradability; cellulose; chitosan; contact angle; oxygen; pollution; polyphenols; shelf life; tea; thermal stability; water content; water solubility; water vapor
Abstract:
... To alleviate the environmental pressure caused by plastic pollution, biodegradable films made from natural polymers are gaining popularity. In the current paper, biodegradable films were successfully prepared by incorporating tea polyphenols (TP) into chitosan-bacterial cellulose (CS-BC) matrix. The effects of different concentrations (2–10% w/w) of TP on physicochemical, antioxidant and antimicro ...
DOI:
10.1016/j.fpsl.2022.100866

59. Antimicrobial and improved performance of biodegradable thermoplastic starch by using natural rosin to replace part of glycerol

Author:
Xin Zhang; Hongpeng Ma; Wenbo Qin; Bin Guo; Panxin Li
Source:
Industrial crops and products 2022 v.178 pp. 114613
ISSN:
0926-6690
Subject:
absorption; bending strength; biodegradability; contact angle; crystallization; extrusion; glycerol; injection molding; rosin; starch; temperature; thermoplastics; wettability
Abstract:
... To improve the mechanical and water resistance of biodegradable thermoplastic starch (TPS) and endow the material with antibacterial properties, a novel strategy was proposed to use low-cost and renewable rosin to replace some glycerol in traditional TPS with invariable glycerol content. The mechanical properties, fractured cross-section images, crystallization behavior, dynamic mechanical analysi ...
DOI:
10.1016/j.indcrop.2022.114613

60. Antimicrobial peptide GL13K immobilized onto SLA-treated titanium by silanization: antibacterial effect against methicillin-resistant Staphylococcus aureus (MRSA)

Author:
Yusang Li; Ruiying Chen; Fushi Wang; Xinjie Cai; Yining Wang
Source:
RSC advances 2022 v.12 no.11 pp. 6918-6929
ISSN:
2046-2069
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; antibacterial properties; antimicrobial peptides; bacterial infections; cell structures; contact angle; hydrophilicity; methicillin-resistant Staphylococcus aureus; silane; titanium
Abstract:
... Infection is the main reason for implant failure, and the incidence of drug-resistant bacterial infection has increased in recent years. Further, methicillin-resistant Staphylococcus aureus (MRSA)-related implant infection has become a serious worldwide threat. New strategies, other than antibiotics, to tackle drug-resistance, are of high clinical significance. Antimicrobial peptides show clear su ...
DOI:
10.1039/d1ra04974g

61. Applicability of anti-corrosion for slippery liquid-infused porous surface using a double-layer ZnO nanostructure on Al foil

Author:
Hong Li; Xinyu Fu; Xingwen Chu
Source:
Journal of materials science 2022 v.57 no.5 pp. 3746-3756
ISSN:
0022-2461
Subject:
aluminum; aluminum foil; contact angle; corrosion; electrochemistry; ethanol; hot water treatment; hydrophobicity; nanorods; stearic acid
Abstract:
... Double-layer ZnO containing nanoflakes and nanorods was prepared on aluminum foil by a simple one-step hydrothermal method. The aluminum foil coated with double-layer ZnO could form a slippery liquid-infused porous surface (SLIPS) by immersing the sample in an ethanol solution containing stearic acid and then in Dupont Krytox 104. The as-prepared SLIPS had a larger contact angle and a smaller slid ...
DOI:
10.1007/s10853-021-06819-9

62. Application of a new depressant dithiocarbamate chitosan in separation of chalcopyrite and molybdenite

Author:
Jiamei Hao; Jian Liu; Dong Yang; Xiaoyan Qin; Hulin Gao; Xu Bai; Shuming Wen
Source:
Colloids and surfaces 2022 v.634 pp. 127920
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; chitosan; contact angle; hydrophilicity; kerosene; mass spectrometry; pH
Abstract:
... The application of a new depressant called dithiocarbamate chitosan (DTC-CTS) in flotation separation of chalcopyrite and molybdenite was firstly tested in present work, and the depression mechanism of DTC-CTS was investigated by contact angle measurement, Fourier Transform Infrared Spectrometer (FTIR) and Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS). The flotation test result showed ...
DOI:
10.1016/j.colsurfa.2021.127920

63. Application of polyvinyl alcohol (PVA) as a toughening agent in wood furfurylation

Author:
Jiamin Wang; Tiantian Yang; Shaodi Zhang; Jinzhen Cao
Source:
Holzforschung 2022 v.76 no.4 pp. 380-390
ISSN:
1437-434X
Subject:
adsorption; alcohols; cell walls; contact angle; dimensional stability; furfuryl alcohol; heat; hydrophobicity; polymerization; polyvinyl alcohol; water uptake; wood
Abstract:
... In order to explore the application of furfurylated wood as engineering material, polyvinyl alcohol (PVA) was proposed as a toughening agent to incorporate with furfuryl alcohol (FA) to form FA/PVA precursor and impregnate wood in a one-step method. After in situ polymerization upon heating, a hydrophobic network composed of polyfurfuryl alcohol (PFA) and PVA was formed within the wood scaffold. T ...
DOI:
10.1515/hf-2021-0144

64. Attached cultivation of microalgae on rational carriers for swine wastewater treatment and biomass harvesting

Author:
Guangpu Zhao; Xiaoyan Wang; Yu Hong; Xiaoya Liu; Qiao Wang; Qingyu Zhai; Hongkai Zhang
Source:
Bioresource technology 2022 v.351 pp. 127014
ISSN:
0960-8524
Subject:
Scenedesmus; biomass; contact angle; geotextiles; microalgae; swine; wastewater; wastewater treatment
Abstract:
... Attachment effects of six carrier materials on the cultivation of high-value microalga Scenedesmus sp. LX1 in diluted swine wastewater were investigated. The results showed that when the initial algal densities were 5×10⁵ cells/mL and 1×10⁶ cells/mL in sterilized wastewater with 20-fold dilution, the biomass of microalgae attaching to geotextile was the highest. The contact angle and surface struc ...
DOI:
10.1016/j.biortech.2022.127014

65. Automated Manipulation of Miniature Objects Underwater Using Air Capillary Bridges: Pick-and-Place, Surface Cleaning, and Underwater Origami

Author:
Tal Weinstein; Hagit Gilon; Or Filc; Camilla Sammartino; Bat-El Pinchasik
Source:
ACS applied materials & interfaces 2022 v.14 no.7 pp. 9855-9863
ISSN:
1944-8252
Subject:
adhesion; air; automation; cell culture; contact angle; hydrophilicity; hydrophobicity; lab-on-a-chip technology; robots
Abstract:
... Various insects can entrap and stabilize air plastrons and bubbles underwater. When these bubbles interact with surfaces underwater, they create air capillary bridges that de-wet surfaces and even allow underwater reversible adhesion. In this study, a robotic arm with interchangeable three-dimensional (3D)-printed bubble-stabilizing units is used to create air capillary bridges underwater for mani ...
DOI:
10.1021/acsami.1c23845

66. Binary mixture droplet wetting on micro-structure decorated surfaces

Author:
Khaloud Moosa Al Balushi; Khellil Sefiane; Daniel Orejon
Source:
Journal of colloid and interface science 2022 v.612 pp. 792-805
ISSN:
0021-9797
Subject:
asymmetry; contact angle; droplets; ethanol; ethylene; hydrophobicity; liquids; microstructure; surface tension; wettability
Abstract:
... Liquid surface tension as well as solid structure play a paramount role on the intimate wetting and non-wetting regimes and interactions between liquids droplets and solid substrates. We hypothesise that the coupling of these two variables, independently addressed in the past, eventually offer a wider range of understanding to the surface science and interfacial communities. In this work, intrinsi ...
DOI:
10.1016/j.jcis.2021.12.171

67. Bio-based and one-day compostable poly(diethylene 2,5-furanoate) for sustainable flexible food packaging: Effect of ether-oxygen atom insertion on the final properties

Author:
Silvia Quattrosoldi; Giulia Guidotti; Michelina Soccio; Valentina Siracusa; Nadia Lotti
Source:
Chemosphere 2022 v.291 pp. 132996
ISSN:
0045-6535
Subject:
carbon; carbon dioxide; condensation reactions; contact angle; diethylene glycol; furans; glass transition temperature; humidity; hydrophilicity; modulus of elasticity; molecular weight; oxygen; polymers; thermal stability
Abstract:
... In the present work, the effect of ether oxygen atom introduction in a furan ring-containing polymer has been evaluated. Solvent-free polycondensation process permitted the preparation of high molecular weight poly(diethylene 2,5-furandicarboxylate) (PDEF), by reacting the dimethyl ester of 2,5-furandicarboxylic acid with diethylene glycol. After molecular and thermal characterization, PDEF mechan ...
DOI:
10.1016/j.chemosphere.2021.132996

68. Bio-packaging based on cellulose acetate from banana pseudostem and containing Butia catarinensis extracts

Author:
Nathan Roberto Lohn Pereira; Bruna Lopes; Igor Valezan Fagundes; Fernanda Mendes de Moraes; Fernando Dal Pont Morisso; Gabriel Oscar Cremona Parma; Karine Modolon Zepon; Rachel Faverzani Magnago
Source:
International journal of biological macromolecules 2022 v.194 pp. 32-41
ISSN:
0141-8130
Subject:
Butia; Escherichia coli; Musa acuminata; Staphylococcus aureus; acetylation; bananas; bio-packaging; cellulose; cellulose acetate; contact angle; deformation; food preservation; modulus of elasticity; pulp; thermal stability
Abstract:
... Banana (Musa acuminata) pseudostem cellulose was extracted and acetylated (CA) to prepare membranes with potential use as bio-packages. The CA membrane was embedded by Butia seed (CA-BS) or Butia pulp (CA-BP) extracts obtained from Butia catarinenses (Butia). The produced CA, CA-BS, and CA-BP membranes were evaluated for their physical-chemical, mechanical, thermal, and antibacterial properties. T ...
DOI:
10.1016/j.ijbiomac.2021.11.179

69. Bioactive tri-component nanofibers from cellulose acetate/lignin//N-vanillidene-phenylthiazole copper-(II) complex for potential diaper dermatitis control

Author:
Dalia A. Elsherbiny; Abdelrahman M. Abdelgawad; Mehrez E. El-Naggar; Bahaa A. Hemdan; Samaneh Ghazanfari; Stefan Jockenhövel; Orlando J. Rojas
Source:
International journal of biological macromolecules 2022 v.205 pp. 703-718
ISSN:
0141-8130
Subject:
Acinetobacter baumannii; Enterococcus faecalis; Pseudomonas aeruginosa; Staphylococcus epidermidis; absorption; antibacterial properties; cellulose acetate; contact angle; cytotoxicity; dermatitis; encapsulation; hygiene; lignin; lignin content; nanofibers
Abstract:
... Current research targets innovative medical textiles of nanofibrous nature and antibacterial activity to prevent diaper dermatitis. The work is based on electrospun nanofibers from cellulose acetate (CA) and lignin (Lig) polymers. A series of new copper complexes were synthesized and loaded to the CA/Lig solution mix then subjected to electrospinning, giving rise to the tricomponent bioactive mats ...
DOI:
10.1016/j.ijbiomac.2022.02.192

70. Biocompatibility and corrosion evaluation of niobium oxide coated AZ31B alloy for biodegradable implants

Author:
S. Thanka Rajan; Mitun Das; A. Arockiarajan
Source:
Colloids and surfaces 2022 v.212 pp. 112342
ISSN:
0927-7765
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; adverse effects; alloys; biocompatibility; biodegradability; body fluids; cell proliferation; cell viability; chemical composition; contact angle; corrosion; crystal structure; films (materials); hydrophobicity; magnesium; mice; niobium; osteoblasts; surgery; toxicity testing; transmission electron microscopes; wettability
Abstract:
... Biodegradable magnesium (Mg) based implants have considerable interest in the biomedical field as their use nullifies the necessity for implant removal surgery and avoids the long-standing adverse reaction of permanent bioimplants. The degradation resistance and biocompatibility of the Mg alloys can be improved by coating them with a suitable thin film. Here, thin films of niobium and niobium oxid ...
DOI:
10.1016/j.colsurfb.2022.112342

71. Biodegradable Composites Made by Cassava Peels, Residual Glycerin, Bentonite, and Zeolite: The Contribution to the Treatment of BTEX in Gasoline-Contaminated Soils

Author:
Lilian Cristina S. Silva; Paulo H. Camani; Elizabete C. de Lima; Derval S. Rosa
Source:
Waste and biomass valorization 2022 v.13 no.4 pp. 1965-1980
ISSN:
1877-2641
Subject:
adsorption; bentonite; benzene; biodegradability; biomass; bioremediation; carbon; cassava; contact angle; electron microscopy; ethylbenzene; extrusion; glycerol; high performance liquid chromatography; pH; starch; surface roughness; thermoplastics; toluene; wastes; wettability; xylene; zeolites
Abstract:
... Biodegradable composite materials were developed to act as substrates to treat gasoline-contaminated soil. The starch matrix (SM) and biodegradable composites (C) were prepared by extrusion, using thermoplastic starch (SM) [obtained from cassava peels and residual (blond) glycerin], and with the addition of 5 and 10 wt% of the zeolite (Z) or bentonite (B). The morphology of SM and biodegradable co ...
DOI:
10.1007/s12649-021-01642-4

72. Biodegradable intelligent film for food preservation and real-time visual detection of food freshness

Author:
Yali Zhao; Jian Du; Huimin Zhou; Siying Zhou; Yanna Lv; Yi Cheng; Yehan Tao; Jie Lu; Haisong Wang
Source:
Food hydrocolloids 2022 v.129 pp. 107665
ISSN:
0268-005X
Subject:
Lewis acids; anthocyanins; biodegradability; biopolymers; carboxymethylcellulose; color; contact angle; dyes; energy; food preservation; freshness; graphene oxide; hydrocolloids; oxygen; pH; tensile strength; total volatile basic nitrogen; water vapor
Abstract:
... Intelligent packaging film employing natural polymer as matrix and pH-sensing dye as indicator for freshness detecting has arouse growing interest in recent years. Herein, robust pH-sensitive smart packaging films (CMC/Anth/GO) were fabricated using carboxymethyl cellulose (CMC) as matrix, anthocyanins (Anth) as indicator and graphene oxide (GO) as enhancer. The oxygen and water vapor barrier perf ...
DOI:
10.1016/j.foodhyd.2022.107665

73. Biodegradable nano composite reinforced with cellulose nano fiber from coconut industry waste for replacing synthetic plastic food packaging

Author:
Ramachandran Arun; Ramesh Shruthy; Radhakrishnan Preetha; Valiathan Sreejit
Source:
Chemosphere 2022 v.291 pp. 132786
ISSN:
0045-6535
Subject:
acid hydrolysis; antimicrobial properties; antioxidants; biodegradability; cellulose; cellulose nanofibers; coconuts; composite films; contact angle; crystal structure; food industry; hydrophobicity; industrial wastes; lemon oil; linseed oil; nanocomposites; plastics; pollution; polyethylene film; polyvinyl alcohol; raw materials
Abstract:
... Environmental pollution due to the usage of non-biodegradable synthetic plastic and agro-waste disposal/burning are major issues nowadays. Hence, in the present study, agro-waste (coconut shells) was selected as raw material to synthesize cellulose nanofibers, and it was incorporated into a biodegradable packaging film to enhance its properties. Coconut shell cellulose nanofibers (CNF) were synthe ...
DOI:
10.1016/j.chemosphere.2021.132786

74. Bioengineering of neem nano-formulation with adjuvant for better adhesion over applied surface to give long term insect control

Author:
Nusrat Iqbal; Dipak Kumar Hazra; Aloke Purkait; Amrish Agrawal; Jitendra Kumar
Source:
Colloids and surfaces 2022 v.209 pp. 112176
ISSN:
0927-7765
Subject:
Azadirachta indica; Bemisia tabaci; Cymbopogon citratus; Fourier transform infrared spectroscopy; Prosopis juliflora; Solanum melongena; acidity; adhesion; adjuvants; alkalinity; azadirachtin; biosynthesis; contact angle; crystallization; droplet size; eggplants; half life; high performance liquid chromatography; insect control; insecticidal properties; integrated pest management; nanoemulsions; neem oil; organic production; pests; phenolic compounds; plant protection; separation; storage quality; storage time; surface tension; tensiometers; viscometers; viscosity; zeta potential
Abstract:
... Although safe and eco-friendly botanical pesticides have been intensively promoted to combat pest attacks in agriculture, but their stability and efficacies remain an issue for their wide acceptability as sustained and effective approaches. The purpose of this work was to develop stable neem oil based nano-emulsion (NE) formulation with enhanced activity employing suitable bio-inspired adjuvant. S ...
DOI:
10.1016/j.colsurfb.2021.112176

75. Bioinspired micro/nano structured aluminum with multifaceted applications

Author:
Priya Mandal; Jayanth Ivvala; Harpreet S. Arora; Sajal K. Ghosh; Harpreet S. Grewal
Source:
Colloids and surfaces 2022 v.211 pp. 112311
ISSN:
0927-7765
Subject:
aluminum; antibacterial properties; biofouling; biomimetics; cell membranes; contact angle; corrosion; dust; energy; hydrophilicity; hydrophobicity; hysteresis; insects; wettability
Abstract:
... Inspired by many biological systems such as lotus leaves, insect wings and rose petals, great attention has been devoted to the study and fabrication of artificial superhydrophobic surfaces with multiple functionalities. In the present study, a simple and ecological synthesis route has been employed for large scale fabrication of self-assembled, sustainable nanostructures on unprocessed and micro ...
DOI:
10.1016/j.colsurfb.2021.112311

76. Bioinspired superhydrophobic surface via one-step electrodeposition and its corrosion inhibition for Mg-Li alloy

Author:
Yibo Ouyang; Zongning Chen; Enyu Guo; Ri Qiu; Xuejian Wang; Huijun Kang; Tongmin Wang
Source:
Colloids and surfaces 2022 v.648 pp. 129145
ISSN:
0927-7757
Subject:
alloys; contact angle; corrosion; dielectric spectroscopy; droplets; electric potential difference; electrochemistry; electroplating; hydrophobicity
Abstract:
... The extremely low corrosion resistance of Mg-Li alloy is a critical obstacle to overcome for its practical usage. In this work, targeting this hard problem, we prepare bioinspired superhydrophobic surface onto Mg-Li (LA141) alloy (contact angle up to 167.4° with the sliding angle as low as 1°) for corrosion prohibition by a facile one-step electrodeposition. Transient image capture technique revea ...
DOI:
10.1016/j.colsurfa.2022.129145

77. Biomimetic superhydrophobic films drop-coated with zinc oxide modified molecular sieves

Author:
Tengda Hu; Yizhou Wu; Ning Zhao; Yuling Liu; Pengchao Zhou; Yachen Xu; Tao Xu; Wenshan Qu; Bin Wei; Yingjie Liao
Source:
Colloids and surfaces 2022 v.642 pp. 128669
ISSN:
0927-7757
Subject:
biomimetics; contact angle; hydrophobicity; industry; polydimethylsiloxane; thermal stability; zinc oxide
Abstract:
... Superhydrophobic films have a wide range of applications in industry due to their hydrophobic and self-cleaning properties. A simple and economical method is proposed in this paper to prepare a superhydrophobic surface by creatively using microstructures consisting of zinc oxide particles on molecular sieves. The combination of zinc oxide particles and molecular sieves are embedded into polydimeth ...
DOI:
10.1016/j.colsurfa.2022.128669

78. Biomimicking of phyto-based super-hydrophobic surfaces towards prospective applications: a review

Author:
Darsana Deo; Shivendra Pratap Singh; Sheetikanta Mohanty; Shrabani Guhathakurata; Dipankar Pal; Sandipan Mallik
Source:
Journal of materials science 2022 v.57 no.19 pp. 8569-8596
ISSN:
0022-2461
Subject:
contact angle; droplets; ecosystems; hydrophobicity; leaves; roughness
Abstract:
... The self-cleaning mechanism attribute of organic surfaces is grabbing much attention in most of the commercially available commodities. Among organic surfaces, investigations on hydrophobic surfaces are much insightful and intriguing. The self-cleaning phenomena of hydrophobic surfaces are also known as the lotus effect. The effect uses the right combination of roughness and surface chemistry, whi ...
DOI:
10.1007/s10853-022-07172-1

79. Biotechnology Approach to Mineral Separation via Phage Flotation Collectors

Author:
Chih-Wei Liao; Ya-Wen Yeh; Hassan El-Shall; Laurie B. Gower
Source:
ACS applied materials & interfaces 2022 v.14 no.7 pp. 9795-9806
ISSN:
1944-8252
Subject:
adsorption; apatite; bacteriophages; biotechnology; contact angle; dolomite; hydrophobicity; peptides; Florida
Abstract:
... A long-standing challenge in the mining industry is the separation of mineral particles that have similar surface characteristics for which surfactant-based flotation collectors cannot discriminate. In Florida phosphate mining, this problem occurs in the separation of dolomite [CaMg(CO₃)₂] contaminants from the desired francolite mineral {a fluorapatite [Ca₅(PO₄)₃(F,OH)]}. In this study, phage dis ...
DOI:
10.1021/acsami.1c22595

80. Boron removal by using vacuum assisted air gap membrane distillation (VAGMD)

Author:
Oyku Mutlu Salmanli; Ayse Yuksekdag; Ismail Koyuncu
Source:
Environmental technology & innovation 2022 v.26 no. pp. 102395
ISSN:
2352-1864
Subject:
air; boron; contact angle; distillation; environmental technology; hydrophobicity; saline water; specific energy
Abstract:
... Vacuum-assisted air gap membrane distillation was used to remove boron from different waters in this study. Four different vacuum pressures (0.02 bar, 0.04 bar, 0.06 bar, and 0.08 bar) were applied and air gap membrane distillation (AGMD) configuration was also used to compare the effect of vacuum pressures on the process. Six commercial hydrophobic membranes which have the 110° contact angle valu ...
DOI:
10.1016/j.eti.2022.102395

81. Brass wires with different surface wettability used for in-tube solid-phase microextraction

Author:
Yu-Ping Zhang; Cong-Cong Luan; Zhen-Yu Lu; Na Chen; Yi-Jun Zhang; Cheng-Xing Cui
Source:
Journal of chromatography 2022 v.1670 pp. 462948
ISSN:
0021-9673
Subject:
benzene; contact angle; desorption; equipment; estrogens; hydrophilicity; hydrophobicity; naphthalene; redox reactions; silica; solid phase microextraction; sorbents; ultrasonic treatment; wettability
Abstract:
... Metal wires have been widely used as substrates for solid-phase microextraction (SPME) fibers instead of commonly fragile silica fibers, but complicated coating modification of their surface is required. Herein, a series of brass wires were soaked in an acidic iron trichloride solution with ultrasonication, which etched the brass surface through a redox reaction. The surface wettability of the pri ...
DOI:
10.1016/j.chroma.2022.462948

82. Butyl Group Distribution, Intestinal Digestion, and Colonic Fermentation Characteristics of Different Butyrylated Starches

Author:
Lingjin Li; Wei Li; Lihong Yang; Li Cheng; Zhaofeng Li; Caiming Li; Yan Hong; Zhengbiao Gu
Source:
Journal of agricultural and food chemistry 2022 v.70 no.10 pp. 3289-3299
ISSN:
1520-5118
Subject:
butyrates; carbohydrate structure; contact angle; corn starch; digestion; enzymatic hydrolysis; fermentation; food chemistry; intestines; microscopy; resistant starch; waxy corn
Abstract:
... Despite being a promising butyrate carrier, butyrylated starch remains poorly understood in terms of the correlation between starch structure and fermentation characteristics. Herein, three butyrylated starches derived from different botanical sources were prepared with a similar degree of substitution. Raman microscopy and water contact angle analysis suggested that a relatively large proportion ...
DOI:
10.1021/acs.jafc.1c07861

83. Capillary Bridges on Hydrophobic Surfaces: Analytical Contact Angle Determination

Author:
Norbert Nagy
Source:
Langmuir 2022 v.38 no.19 pp. 6201-6208
ISSN:
1520-5827
Subject:
contact angle; hydrophilicity; hydrophobicity; liquids; neck; olefin; polymers
Abstract:
... The capillary bridge probe method was introduced previously as a high-accuracy contact angle determination method relying on capillary bridges on hydrophilic and superhydrophilic surfaces [Nagy, N. Langmuir2019, 35 (15), 5202−5212]. In this work, the behavior of r-ϑ type liquid bridges was studied and the contact angles were determined on hydrophobic surfaces. The equilibrium shape of these liquid ...
DOI:
10.1021/acs.langmuir.2c00674

84. Capillary-Driven Ejection of a Droplet from a Micropore into a Channel: A Theoretical Model and a Computational Fluid Dynamics Verification

Author:
Amgad Salama; Jisheng Kou; Adel Alyan; Maen M. Husein
Source:
Langmuir 2022 v.38 no.14 pp. 4461-4472
ISSN:
1520-5827
Subject:
contact angle; droplets; equations; filtration; gravity; momentum; permeability; surface tension; theoretical models; thermodynamics; viscosity
Abstract:
... In this work, the problem of re-ejection of a permeating droplet through a membrane pore back to the feed channel when the transmembrane pressure (TMP) becomes zero is investigated. This problem is important in the context of oily water filtration using membranes. In particular, in the novel periodic feed pressure technique (PFPT), which has been proposed to combat membrane fouling, the TMP altern ...
DOI:
10.1021/acs.langmuir.2c00426

85. Carbon foams derived from emulsion-templated porous polymeric composites for electromagnetic interference shielding

Author:
Ruobing Tang; Pei Xu; Jiawei Dong; Haoguan Gui; Tao Zhang; Yunsheng Ding; Vignesh Murugadoss; Nithesh Naik; Duo Pan; Mina Huang; Zhanhu Guo
Source:
Carbon 2022 v.188 pp. 492-502
ISSN:
0008-6223
Subject:
carbon; carbon nanotubes; carbonization; contact angle; crosslinking; electrical conductivity; electromagnetic interference; hydrophobicity; magnetism; nanofibers; polystyrenes; shrinkage; surface area
Abstract:
... A series of carbon foams (CFs) were fabricated from the emulsion-templated porous polymeric composites, following with hypercrosslinking and carbonization. The polymeric composites were constituted by syndiotactic polystyrene (sPS), carbon nanotubes (CNTs) and magnetic Ni@CNTs. The addition of nanofillers was beneficial to the carbonization, resulting in less shrinkage, higher graphitization degre ...
DOI:
10.1016/j.carbon.2021.12.026

86. Carbonated Water Injection in Oil-Wet Carbonate Rock Samples: A Pore-Scale Experimental Investigation of the Effect of Brine Composition

Author:
Dayo Akindipe; Soheil Saraji; Mohammad Piri
Source:
Energy & fuels 2022 v.36 no.9 pp. 4847-4870
ISSN:
1520-5029
Subject:
adsorption; carbon dioxide; carbonate rocks; carbonates; carbonation; contact angle; electrostatic interactions; energy; micro-computed tomography; oils; salinity; sandstone; seawater; surface tension; wettability
Abstract:
... Research into the application of carbonated water injection (CWI) for oil recovery has primarily focused on sandstone reservoirs. Therefore, characteristic pore-scale mechanisms that principally depend on the injected brine composition in oil-wet carbonates are still poorly understood. This study uses a pore-scale approach that incorporates core flooding with microcomputed tomography (micro-CT) im ...
DOI:
10.1021/acs.energyfuels.2c00326

87. Cell Adhesion and Migration on Thickness Gradient Bilayer Polymer Brush Surfaces: Effects of Properties of Polymeric Materials of the Underlayer

Author:
Zahra Afzali; Taishi Matsushita; Akinori Kogure; Tsukuru Masuda; Tomoyuki Azuma; Keiichiro Kushiro; Toshihiro Kasama; Ryo Miyake; Madoka Takai
Source:
ACS applied materials & interfaces 2022 v.14 no.2 pp. 2605-2617
ISSN:
1944-8252
Subject:
X-ray reflectivity; biocompatible materials; cell adhesion; composite polymers; contact angle; epithelium; ethylene glycol; fibroblasts; hydrophilicity; mechanical properties; methyl ethers; phosphorylcholine; polymerization; spectroscopy; zeta potential
Abstract:
... In the field of tissue engineering and biomaterials, controlling the surface properties and mechanical properties of scaffold materials is crucial and has attracted much attention. Here, two types of bilayer polymer brushes composed of a hydrophilic underlying layer and a cationic surface layer [made of poly(2-aminoethyl methacrylate)] with a thickness gradient were prepared by surface-initiated a ...
DOI:
10.1021/acsami.1c21453

88. Cellulose nanofiber assisted dispersion of hydrophobic SiO2 nanoparticles in water and its superhydrophobic coating

Author:
Xi Chen; Yong Huang; Lijiaqi Zhang; Jinfeng Liu; Chao Wang; Min Wu
Source:
Carbohydrate polymers 2022 v.290 pp. 119504
ISSN:
0144-8617
Subject:
absorption; adhesion; cellulose; contact angle; hydrophobicity; hysteresis; nanofibers; paper
Abstract:
... It is challenging to build a superhydrophobic coating with aqueous dispersions since hydrophobic substances are usually dispersed in pure organic or water/organic mixed solvents. In this study, hydrophobic SiO₂ nanoparticles were dispersed in water assisted with cellulose nanofiber (CNF) and the superhydrophobic surface was manufactured by coating a waterborne dispersion composed of CNF, hydrophob ...
DOI:
10.1016/j.carbpol.2022.119504

89. Cellulose nanofiber-based coating film integrated with nitrogen-functionalized carbon dots for active packaging applications of fresh fruit

Author:
Parya Ezati; Jong-Whan Rhim; Rahim Molaei; Ruchir Priyadarshi; Sanghee Han
Source:
Postharvest biology and technology 2022 v.186 pp. 111845
ISSN:
0925-5214
Subject:
antifungal properties; antioxidant activity; cellulose; contact angle; cytotoxicity; fruits; fungal growth; glucose; hot water treatment; nanofibers; nitrogen; permeability; raw fruit; reactive oxygen species; shelf life; strawberries; tangerines; water vapor
Abstract:
... Carbon dots were synthesized using a hydrothermal method with glucose as the carbon source (GCD) and functionalized with nitrogen. The GCD and N-functionalized carbon dots (NGCD) were used to prepare cellulose nanofiber (CNF)-based composite films. GCD and NGCD provided high UV blocking properties to the CNF film without changing the transparency, reducing the T₂₈₀ by 91–98 % and T₆₆₀ by 12−10 %. ...
DOI:
10.1016/j.postharvbio.2022.111845

90. Cellulose nanofibrils reinforced films without chemical modification, hydrophobic, high elongation, and foldability

Author:
Lanjie Shi; Lei Kang; Jie Gong; Xi Zhang; Jianming Liao; Lihuan Mo; Jun Li
Source:
Industrial crops and products 2022 v.180 pp. 114742
ISSN:
0926-6690
Subject:
beverages; cellulose nanofibers; color; contact angle; glass; hydrophilicity; hydrophobicity; reflectance; tensile strength
Abstract:
... Cellulose nanofibrils (CNF) films are generally regarded as promising alternatives for non-biodegradable plastics films. However, the shortcomings of high hydrophilic performance, low elongation and poor folding endurance continue to pose challenges in commercial application. In the present study, we established controllable reflectance CNF films by applying a facile and scalable poly (butylene ad ...
DOI:
10.1016/j.indcrop.2022.114742

91. Cerebrospinal Fluid-philic and Biocompatibility-Enhanced Soft Cranial Window for Long-Term In Vivo Brain Imaging

Author:
Jong Uk Kim; Hyejin Park; Jehyung Ok; Juheon Lee; Woojin Jung; Jiwon Kim; Jaehyun Kim; Suhyeon Kim; Yong Ho Kim; Minah Suh; Tae-il Kim
Source:
ACS applied materials & interfaces 2022 v.14 no.13 pp. 15035-15046
ISSN:
1944-8252
Subject:
air; brain; cerebrospinal fluid; contact angle; cortex; electrophysiology; hemodynamics; hydrophobicity; immune response; neurons; surgery; wettability
Abstract:
... Soft, transparent poly(dimethyl siloxane) (PDMS)-based cranial windows in animal models have created many opportunities to investigate brain functions with multiple in vivo imaging modalities. However, due to the hydrophobic nature of PDMS, the wettability by cerebrospinal fluid (CSF) is poor, which may cause air bubble trapping beneath the window during implantation surgery, and favorable heterog ...
DOI:
10.1021/acsami.2c01929

92. Characteristic analysis of three-ecofriendly reduced graphene oxides (rGOs) and their application in water–ethanol-based fluids with different volume ratios

Author:
Jun Xu; Lingchao Lu; Guangbin Duan; Weilin Zhao
Source:
RSC advances 2022 v.12 no.9 pp. 5522-5533
ISSN:
2046-2069
Subject:
Raman spectroscopy; beers; contact angle; graphene; graphene oxide; heat transfer; nanofluids; temperature; thermal conductivity; wines
Abstract:
... In this paper, three-ecofriendly reduced graphene oxides (rGOs) were obtained by using three green reducing agents (beer, wine and cocoa) to reduce the graphene oxide (GO), and were labeled as B-rGO, W-rGO and C-rGO. Meanwhile, rGO nanofluids with different water–ethanol volume ratios (25 : 75, 50 : 50, 75 : 25) were prepared based on three-ecofriendly rGOs. The structure properties of the three-e ...
DOI:
10.1039/d2ra00007e

93. Characterization of antioxidant active biopolymer bilayer film based on gelatin-frankincense incorporated with ascorbic acid and Hyssopus officinalis essential oil

Author:
Motahare Pirnia; Khatereh Shirani; Farideh Tabatabaee Yazdi; Seyed Ali Moratazavi; Mohebbat Mohebbi
Source:
Food chemistry: X 2022 v.14 pp. 100300
ISSN:
2590-1575
Subject:
Hyssopus officinalis; antioxidants; ascorbic acid; biopolymers; contact angle; edible films; essential oils; food chemistry; frankincense; gelatin; hydrophobicity; permeability; tensile strength; water vapor
Abstract:
... In this study, a bio-based bilayer edible film based on gelatin/frankincense, with the incorporation of different concentrations of Ascorbic acid (AA) (0, 1, 2%) into the inner layer (gelatin) and Hyssopus officinalis (HO) (0, 0.75, 1.5%) essential oil in the outer layer (frankincense) was prepared. A significant increase (p < 0.05) in b* and a remarkable decrease in whiteness and lightness of the ...
DOI:
10.1016/j.fochx.2022.100300

94. Characterization of fouling for a full-scale seawater reverse osmosis plant on the Mediterranean sea: membrane autopsy and chemical cleaning efficiency

Author:
Mahmoud Adel; Tarek Nada; Sherif Amin; Tohamy Anwar; Ashraf A. Mohamed
Source:
Groundwater for sustainable development 2022 v.16 pp. 100704
ISSN:
2352-801X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray fluorescence spectroscopy; contact angle; desalination; differential pressure; energy-dispersive X-ray analysis; groundwater; hydrophilicity; necropsy; polysaccharides; remediation; reverse osmosis; seawater; sustainable development; thermogravimetry; zeta potential; Mediterranean Sea
Abstract:
... Membrane fouling is a serious problem facing most reverse osmosis plants used for the remediation and desalination of surface and ground waters. Herein, the fouling and cleaning behaviors of RO membranes, of full-scale seawater reverse osmosis (SWRO) plant after eight months of operation, were thoroughly investigated via membrane autopsies and foulants' characterization. Various techniques were ap ...
DOI:
10.1016/j.gsd.2021.100704

95. Characterization of membrane wetting phenomenon by ionic liquid via ultrasonic time-domain reflectometry (UTDR)

Author:
Ting-Yi Huang; Jangwon Seo; Tzyy Haur Chong
Source:
Journal of membrane science 2022 v.641 pp. 119949
ISSN:
0376-7388
Subject:
Fourier transform infrared spectroscopy; air; contact angle; energy efficiency; hydrophobicity; ionic liquids; liquids; nondestructive methods; polytetrafluoroethylene; ultrasonics
Abstract:
... Ionic liquids (ILs) are becoming attractive solvents or catalysts in many industries, thus energy-efficient membrane-based technologies for the purification and concentration of ILs are gaining attention. Membrane wetting by ILs is recognised as the major challenge in membrane processes, but limited information is available. In this study, the dynamics of wetting of commercial hydrophobic polytetr ...
DOI:
10.1016/j.memsci.2021.119949

96. Characterization of novel cellulose nanofibril and phenolic acid-based active and hydrophobic packaging films

Author:
SuriyaPrakaash LakshmiBalasubramaniam; Caitlin Howell; Mehdi Tajvidi; Denise Skonberg
Source:
Food chemistry 2022 v.374 pp. 131773
ISSN:
0308-8146
Subject:
antioxidant activity; antioxidants; biodegradability; biopolymers; cellulose; contact angle; crystal structure; esterification; food chemistry; hydrophobicity; nanofibers; syringic acid; thermal stability
Abstract:
... Cellulose nanofibril (CNF) is a natural biodegradable biopolymer with excellent mechanical and barrier properties. However, it is susceptible to moisture-induced deterioration of its properties. Attachment of phenolic acids can improve its hydrophobicity and provide additional active functionalities such as antioxidant properties. In this study, CNF films were esterified to vanillic and syringic a ...
DOI:
10.1016/j.foodchem.2021.131773

97. Characterization of the UV-aging and antimicrobial resistance of cellulose / ethylene-norbornene composites

Author:
Stefan Cichosz; Anna Masek; Małgorzata Piotrowska
Source:
Carbohydrate polymers 2022 v.289 pp. 119459
ISSN:
0144-8617
Subject:
Escherichia coli; acidity; adhesion; antibiotic resistance; cellulose; composite polymers; contact angle; free radicals; health services; microbial growth; shelf life
Abstract:
... The aim of this research was to investigate for the first time the possible application range of sustainable cellulose-filled polymer-based materials dedicated for common use in healthcare sector. These products are exposed to contact with solutions of different acidity, microorganisms and are being constantly UV sterilized. Therefore, the impact of plant filler on the microbial growth, UV-aging a ...
DOI:
10.1016/j.carbpol.2022.119459

98. Cinnamon Essential Oil Encapsulated into a Fish Gelatin-Bacterial Cellulose Nanocrystals Complex and Active Films Thereof

Author:
Mahsa Sadat Razavi; Abdollah Golmohammadi; Ali Nematollahzadeh; Cesare Rovera; Stefano Farris
Source:
Food biophysics 2022 v.17 no.1 pp. 38-46
ISSN:
1557-1858
Subject:
biophysics; carbon dioxide; cellulose; cinnamon; contact angle; essential oils; fish; gelatin; hydrophobicity; metabolism; models; nanocapsules; nanocrystals; oxygen; pH; polymers; transmittance; water vapor; wettability
Abstract:
... In this study, cinnamon essential oil (CEO) nanocapsules were stabilized by means of bacterial cellulose nanocrystals (BCNCs) and encapsulated using fish gelatin as the main polymer phase. Emulsions were prepared at pH 5 using different CEO concentrations (0.03, 0.06, 0.12, 0.24, 0.36, and 0.48% v/w) and a fixed amount of fish gelatin (3% w/w) and BCNCs (0.06% w/w). The controlled release of the e ...
DOI:
10.1007/s11483-021-09696-6

99. Classification of static cylindrical menisci confined in a wedge

Author:
Hyungjoo Yim; Jaewook Nam
Source:
Colloids and surfaces 2022 v.634 pp. 127988
ISSN:
0927-7757
Subject:
colloids; contact angle; forces; materials; surfaces
Abstract:
... In this study, we analyze the shape of a puddle in a plane wedge with a translational symmetry. Under the assumption of equilibrium, where the viscous force is negligible, the shape of the puddle can be approximated as a curve represented as a particular case of Euler’s elastica. For specified geometrical parameter and wetting properties, the shape of the curve is solely determined by a single dim ...
DOI:
10.1016/j.colsurfa.2021.127988

100. Color removal from wastewater using a synthetic high-performance antifouling GO-CPTMS@Pd-TKHPP/polyether sulfone nanofiltration membrane

Author:
Foad Gholami; Sirus Zinadini; Soheila Nakhjiri Kamrani; Ali Akbar Zinatizadeh; Kiumars Bahrami
Source:
Environmental science and pollution research 2022 v.29 no.14 pp. 20463-20478
ISSN:
0944-1344
Subject:
contact angle; decolorization; dried milk; dyes; electron microscopy; graphene oxide; hydrophilicity; nanofiltration; palladium; pollution; polymers; research; wastewater
Abstract:
... Modified graphene oxide with 5,10,15,20-tetrakis-(4-hexyloxyphenyl)-porphyrin and palladium (II) (signified by GO-CPTMS@Pd-TKHPP) prepared as a novel antifouling polyether sulfone (PES) blended nanofiller membrane. The membrane efficiency has been analyzed such as pure water flux (PWF), hydrophilicity, and antifouling features. By increasing of modified graphene oxide percentage from 0 to 0.1 wt.% ...
DOI:
10.1007/s11356-021-16655-8