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1. Recent progress in experiments for sessile droplet wetting on structured surfaces

Author:
Ren, Junheng; Duan, Fei
Source:
Current opinion in colloid & interface science 2021 v.53 pp. 101425
ISSN:
1359-0294
Subject:
hydrophobicity,   etc   ; droplets; hydrophilicity;     Show all 3 Subjects
Abstract:
... Wetting of a sessile droplet on structured or patterned surface can be found in a broad range of applications. The researchers have been promoted to keep working on the topic. The review is on the basis of the recent experimental advances on the sessile droplet wetting on the hydrophobic, hydrophilic, or combined hydrophobic and hydrophilic surfaces under isothermal conditions, and on heating or c ...
DOI:
10.1016/j.cocis.2021.101425

2. Nanoemulsion fluorescent inks for anti-counterfeiting encryption with dual-mode, full-color, and long-term stability

Author:
Wu, Wenna; Liu, Huizhong; Yuan, Jin; Zhang, Zhuo; Wang, Ling; Dong, Shuli; Hao, Jingcheng
Source:
Chemical communications 2021 v.57 no.40 pp. 4894-4897
ISSN:
1364-548X
Subject:
hydrophobicity,   etc   ; fluorescence; nanoemulsions; oils;     Show all 4 Subjects
Abstract:
... An oil-in-water nanoemulsion (O/W NE) is selected as the carrier to encapsulate hydrophobic dual-mode luminescent upconversion nanoparticles (UC NPs) and downconversion (DC) carbon quantum dots (CQDs) inside the oil droplets for forming water-based fluorescent inks. The NE inks conform well to the requirements of inkjet printing for anti-counterfeiting encryption applications. ...
DOI:
10.1039/d1cc00555c

3. Comb-shaped anion exchange membranes: Hydrophobic side chains grafted onto backbones or linked to cations?

Author:
Han, Juanjuan; Gong, Shengqi; Peng, Zhongshi; Cheng, Xueqi; Li, Yuhan; Peng, Hanqing; Zhu, Yuchan; Ren, Zhandong; Xiao, Li; Zhuang, Lin
Source:
Journal of membrane science 2021 v.626 pp. 119096
ISSN:
0376-7388
Subject:
hydrophobicity,   etc   ; anion exchange; topology;     Show all 3 Subjects
Abstract:
... In order to investigate the relationship between the side chain topology of comb-shaped anion exchange membranes (AEMs) and membranes properties, two types of hydrophobic side chains attached AEMs that based on QAPPO are synthesized, namely side chains grafted onto backbones and side chains tethered to cations, resulting in AₓSB-QAPPO and AₓSC-QAPPO AEMs, respectively. Compared with AₓSC-QAPPO, th ...
DOI:
10.1016/j.memsci.2021.119096

4. Effect of packing density of lipid vesicles on the Aβ42 fibril polymorphism

Author:
Heo, Chae Eun; Park, Chae Ri; Kim, Hugh I.
Source:
Chemistry and physics of lipids 2021 v.236 pp. 105073
ISSN:
0009-3084
Subject:
hydrophobicity,   etc   ; amyloid; phosphatidylcholines; phosphatidylserines;     Show all 4 Subjects
Abstract:
... The aggregation of amyloid-β 1–42 (Aβ42) on lipid membranes is closely related to the pathology of Alzheimer’s disease (AD). Herein, we demonstrated the effect of the packing density of lipid vesicles on the Aβ42 fibrillation kinetics and fibril morphology. We used three distinct phosphatidylcholine (PC) lipids, containing different numbers of cis-double bonds in acyl chains, and therefore, a diff ...
DOI:
10.1016/j.chemphyslip.2021.105073

5. Direct ligand screening against membrane proteins on live cells enabled by DNA-programmed affinity labelling

Author:
Huang, Yiran; Deng, Yuqing; Zhang, Jianfu; Meng, Ling; Li, Xiaoyu
Source:
Chemical communications 2021 v.57 no.31 pp. 3769-3772
ISSN:
1364-548X
Subject:
hydrophobicity,   etc   ; DNA; drugs; ligands;     Show all 4 Subjects
Abstract:
... Membrane proteins are important drug targets; however, ligand discovery for membrane proteins is highly challenging due to their hydrophobic nature. We show that membrane proteins may be specifically labelled with a DNA tag by DNA-programmed affinity labelling (DPAL), thereby enabling the screening of chemical compounds against membrane proteins directly on live cells. ...
DOI:
10.1039/d1cc00961c

6. The impact of the counterion in the performance of ionic hydrotropes

Author:
Abranches, Dinis O.; Benfica, Jordana; Soares, Bruna P.; Ferreira, Ana M.; Sintra, Tânia E.; Shimizu, Seishi; Coutinho, João A. P.
Source:
Chemical communications 2021 v.57 no.23 pp. 2951-2954
ISSN:
1364-548X
Subject:
hydrophobicity,   etc   ; chlorides; sodium;     Show all 3 Subjects
Abstract:
... The efficiency of an ionic hydrotrope is shown to increase with the hydrophobicity of its counterion, challenging the common view that ionic hydrotropes should possess a small, densely charged counterion such as sodium or chloride. ...
DOI:
10.1039/d0cc08092f

7. Hydromechanical behavior of unsaturated artificially–hydrophobized sand: Compression, shearing, and dilatancy

Author:
Zhou, Zheng; Leung, Anthony Kwan; Zhu, Wei Jun; Li, Yuan Yuan
Source:
Engineering geology 2021 v.291 pp. 106223
ISSN:
0013-7952
Subject:
hydrophobicity,   etc   ; compressibility; friction; sand; soil;     Show all 5 Subjects
Abstract:
... Artificially-hydrophobized soil has been used in geotechnical applications, such as slope stabilization. This application requires a thorough understanding of the soil's hydromechanical properties to inform stability assessment. The shearing behavior of dry and fully saturated hydrophobized sand has been extensively investigated in the literature. Yet, knowledge on the effects of unsaturation on t ...
DOI:
10.1016/j.enggeo.2021.106223

8. Structural properties of deprotonated naphthenic acids immersed in water in pristine and hydroxylated carbon nanopores from molecular perspectives

Author:
Zhang, Mingshan; Li, Wenhui; Jin, Zhehui
Source:
Journal of hazardous materials 2021 v.415 pp. 125660
ISSN:
0304-3894
Subject:
hydrophobicity,   etc   ; adsorption; hydrogen; hydroxylation; nanopores;     Show all 5 Subjects
Abstract:
... We use molecular dynamic simulations to study the structural properties of deprotonated cyclohexanoic acid (DCHA) and heptanoic acid (DHA) immersed in water in pristine and hydroxylated carbon nanopores (PACNs and HACNs) in relation to NA removal by activated carbons (ACs). In PACNs, both NAs can aggregate on the pore surface by depleting water molecules, while water molecules accumulate in the ar ...
DOI:
10.1016/j.jhazmat.2021.125660

9. Cotton fabrics modified for use in oil/water separation: a perspective review

Author:
Lin, Tzu-Chieh; Lee, Duu-Jong
Source:
Cellulose 2021 v.28 no.8 pp. 4575-4594
ISSN:
0969-0239
Subject:
hydrophobicity,   etc   ; cellulose; cotton; hydrophilicity; oils;     Show all 5 Subjects
Abstract:
... This article provides a perspective review on the use of modified cotton fabrics for oil–water separation. The principles of surface hydrophobicity of cotton fabrics are first described, from which the basis for producing superhydrophobic surfaces is presented. Then the preparation methods to convert hydrophilic cotton fabrics to hydrophobic fabrics are reviewed and discussed. Based on literature ...
DOI:
10.1007/s10570-021-03850-6

10. Nanosphere [Ag(SR)]ₙ: coordination polymers of Ag⁺ with a combination of hydrophilic and hydrophobic thiols

Author:
Xu, Yan; Dong, Su-Li; Yan, Xiao-Sheng; Wang, Qian; Li, Zhao; Jiang, Yun-Bao
Source:
Chemical communications 2021 v.57 no.35 pp. 4311-4314
ISSN:
1364-548X
Subject:
hydrophobicity,   etc   ; cysteine; hydrophilicity; nanospheres; thiols;     Show all 5 Subjects
Abstract:
... We propose to create nanospheres in aqueous solutions from coordination polymers of Ag⁺ with a combination of a hydrophilic and a hydrophobic thiol, of diameter ca. 2.7 nm in the case of using cysteine and n-butanethiol. A spectral probe for the formation of the nanospheres is a reversal of the CD signal at 253 nm from negative in the case of cysteine alone to positive when cysteine and n-BuSH are ...
DOI:
10.1039/d1cc00880c

11. Self-Assembly of Amphiphilic Copper Nanoclusters Driven by Cationic Surfactants

Author:
Yuan, Jin; Liu, Zhuoran; Dong, Minghui; Wang, Ling; Dong, Shuli; Hao, Jingcheng
Source:
Langmuir 2021 v.37 no.22 pp. 6613-6622
ISSN:
1520-5827
Subject:
hydrophobicity,   etc   ; applied research; fluorescence; ligands;     Show all 4 Subjects
Abstract:
... Amphiphilicity is an excellent physicochemical property, which is yet to be explored from traditional surfactants to nanoparticles. This article shows that the amphiphilicity of copper nanoclusters (CuNCs) can be readily tuned by electrostatic interactions with cationic surfactants and cetyltrimethylammonium cations (CTA⁺) with counterions Br–, Cl–, and C₇H₈O₃S–. Due to the role of surface ligands ...
DOI:
10.1021/acs.langmuir.1c00022

12. Hydrophobic collapse-driven nanoparticle coating with poly-adenine adhesives

Author:
Zhu, Dan; Li, Jiang; Wang, Lianhui; Li, Qian; Wang, Lihua; Song, Bo; Zhou, Ruhong; Fan, Chunhai
Source:
Chemical communications 2021 v.57 no.31 pp. 3801-3804
ISSN:
1364-548X
Subject:
hydrophobicity,   etc   ; DNA; adenines; adhesion; nanogold;     Show all 5 Subjects
Abstract:
... The mechanism underlying the strong adhesion between DNA with consecutive adenines (polyA) and Au nanoparticles (AuNPs) is experimentally and theoretically studied. We elucidate that the consecutive adenines collectively result in hydrophobic collapse in the adhesion process, which plays a pivotal role for the high adhesion affinity and specificity. ...
DOI:
10.1039/d1cc00628b

13. The guest polymer effect on the dissolution of drug–polymer crystalline inclusion complexes

Author:
Chen, Lu; Huang, Yanbin
Source:
RSC advances 2021 v.11 no.22 pp. 13091-13096
ISSN:
2046-2069
Subject:
hydrophobicity,   etc   ; crystal structure; drugs; hydrophilicity;     Show all 4 Subjects
Abstract:
... A drug–polymer crystalline inclusion complex (IC) is a novel solid form of drug, in which drug molecules form parallel channels, and linear polymer chains reside in these channels. In this study, we used carbamazepine (CBZ) as a model drug, and directly studied the effect of different types of guest polymers on the dissolution properties of drug–polymer ICs. We successfully prepared ICs formed fro ...
DOI:
10.1039/d1ra01926k

14. Robust superhydrophobicity: mechanisms and strategies

Author:
Zhang, Wenluan; Wang, Dehui; Sun, Zhengnan; Song, Jianing; Deng, Xu
Source:
Chemical Society reviews 2021 v.50 no.6 pp. 4031-4061
ISSN:
1460-4744
Subject:
hydrophobicity,   etc   ; air; liquids; roughness; thermodynamics;     Show all 5 Subjects
Abstract:
... Superhydrophobic surfaces hold great prospects for extremely diverse applications owing to their water repellence property. The essential feature of superhydrophobicity is micro-/nano-scopic roughness to reserve a large portion of air under a liquid drop. However, the vulnerability of the delicate surface textures significantly impedes the practical applications of superhydrophobic surfaces. Robus ...
DOI:
10.1039/d0cs00751j

15. Time- and Pressure-Dependent Gas Diffusion in a Nanoconfined Liquid Phase

Author:
Xu, Lijiang; Li, Mingzhe; Lu, Weiyi
Source:
Journal of physical chemistry 2021 v.125 no.10 pp. 5596-5601
ISSN:
1932-7455
Subject:
hydrophobicity,   etc   ; liquids; nanopores; physical chemistry;     Show all 4 Subjects
Abstract:
... Fundamentally understanding the gas–liquid interaction in a nanoenvironment is important in nanofluidics-based systems. Here, a systematically experimental study of the gas diffusion in a liquid phase confined in hydrophobic nanopores is presented. By holding a liquid nanofoam (LN) system at different pressure levels for various time durations, the gas diffusion behavior is quantified by analyzing ...
DOI:
10.1021/acs.jpcc.0c11318

16. Adsorption of proteins to fluid interfaces: Role of the hydrophobic subphase

Author:
Bergfreund, Jotam; Bertsch, Pascal; Fischer, Peter
Source:
Journal of colloid and interface science 2021 v.584 pp. 411-417
ISSN:
0021-9797
Subject:
hydrophobicity,   etc   ; adsorption; air; oils; prediction;     Show all 5 Subjects
Abstract:
... Adsorption of proteins to fluid interfaces is critical in many industries, scientific disciplines, and biological processes. However, the structural transitions of proteins upon adsorption and the effect of the hydrophobic subphase, such as oil, have received little attention. Herein, we present a comprehensive study on the effect of the hydrophobic subphase on the adsorption behavior of globular ...
DOI:
10.1016/j.jcis.2020.09.118

17. A comparison of 2 micron inner diameter open tubular column liquid chromatography with pressure-driven isocratic, slip-flow, and electrochromatographic modes of operation: a theoretical study

Author:
Schure, Mark R.; Beauchamp, Matthew D.
Source:
Journal of chromatography 2021 v.1638 pp. 461818
ISSN:
0021-9673
Subject:
hydrophobicity,   etc   ; electrochromatography; electroosmosis; liquids; solvents;     Show all 5 Subjects
Abstract:
... Modifications to the flow profile used in open tube capillary liquid chromatography (OT-CLC) include using slip-flow walls and using electroosmosis as a fluid pump as practiced in electrochromatography. These modifications are implemented experimentally by changing the capillary surface and solvent conditions which results in the change of boundary conditions at the capillary wall.In this paper we ...
DOI:
10.1016/j.chroma.2020.461818

18. Monolayer wall nanotubes self-assembled from short peptide bolaamphiphiles

Author:
Zhao, Yurong; Hu, Xuzhi; Zhang, Limin; Wang, Dong; King, Stephen M.; Rogers, Sarah E.; Wang, Jiqian; Lu, Jian R.; Xu, Hai
Source:
Journal of colloid and interface science 2021 v.583 pp. 553-562
ISSN:
0021-9797
Subject:
hydrophobicity,   etc   ; benzene; dihydroxyphenylalanine; nanotubes; peptides;     Show all 5 Subjects
Abstract:
... In spite of extensive research, it remains a formidable challenge to control the dimension of the nanostructures self-assembled from short designed peptides. In this work, we show that peptide bolaamphiphiles form monolayer wall nanotubes, facilitated by the interplay between the side chain structure and hydrophobicity of the central residues. The peptide KI₄K self-assembles into nanotubes with a ...
DOI:
10.1016/j.jcis.2020.09.023

19. Durable mixed edible wax coating with stretching superhydrophobicity

Author:
Wang, Daheng; Huang, Jinxia; Guo, Zhiguang; Liu, Weimin
Source:
Journal of materials chemistry A 2021 v.9 no.3 pp. 1495-1499
ISSN:
2050-7496
Subject:
hydrophobicity,   etc   ; beeswax; carnauba wax; durability;     Show all 4 Subjects
Abstract:
... A mixed edible wax coating on elastic substrates comprising sphere-shaped carnauba wax and flake-shaped beeswax superhydrophobic particles with a two-stage application (before/after stretching) shows durability against abrasion, scratch healing, self-cleaning performance, and sealing ability after stretching. ...
DOI:
10.1039/d0ta10638k

20. Efficient perovskite solar cells enabled by large dimensional structured hole transporting materials

Author:
Wu, Tai; Zhang, Dongyang; Ou, Yangmei; Ma, Huili; Sun, Anxin; Zhao, Rongmei; Zhu, Liqiong; Wang, Runtao; Zhuang, Rongshan; Liu, Gaoyuan; Zhao, Yuanju; Lai, Qian; Hua, Yong
Source:
Journal of materials chemistry A 2021 v.9 no.3 pp. 1663-1668
ISSN:
2050-7496
Subject:
hydrophobicity,   etc   ; chemical structure; energy; hybrids;     Show all 4 Subjects
Abstract:
... The hole-transport material (HTM) in perovskite solar cells (PSCs) plays a critical role in achieving high photovoltaic performance and long-term stability. Although a great number of HTMs have been explored for perovskite solar cells (PSCs), only a few reported HTMs can comprehensively outperform the current state-of-the-art Spiro-OMeTAD. Moreover, further understanding of the relationship betwee ...
DOI:
10.1039/d0ta10449c