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1. Precisely controlling the surface roughness of silica nanoparticles for enhanced functionalities and applications

Author:
Wei Chen; Binbin Yu; Xiaoqiang Zhang; Fanwei Zhang; Xingjie Zan; Tao Li
Source:
Journal of colloid and interface science 2023 v.629 pp. 173-181
ISSN:
0021-9797
Subject:
surface roughness,   etc   ; cytotoxicity; doxorubicin; nanoparticles; porous media; silica; slurries;     Show all 7 Subjects
Abstract:
... Colloids with rough topography demonstrate more complex interactions and tremendous potential in industrial applications. However, relevant studies suffer from a range of challenges, including cumbersome synthesis, complex characterization, and very limited functionalities. A comprehensive study of rough nanoparticles can not only broaden our understanding of rough colloids, but also help to avoid ...
DOI:
10.1016/j.jcis.2022.08.159

2. Mechanically robust pyrolyzed carbon produced by two photon polymerization

Author:
Peter Serles; Michel Haché; Jason Tam; Alianna Maguire; Tao Li; Guorui Wang; Keith Sebastian; Jun Lou; Charles Jia; Pulickel M. Ajayan; Jane Howe; Yu Zou; Tobin Filleter
Source:
Carbon 2023 v.201 pp. 161-169
ISSN:
0008-6223
Subject:
surface roughness,   etc   ; carbon; geometry; modulus of elasticity; photons; polymerization; polymers; porosity; pyrolysis;     Show all 9 Subjects
Abstract:
... Rapid production of nanoscale carbon-based designs with complex 3D geometry has been recently enabled by nano-3D printing via two-photon polymerization (2PP) combined with post-pyrolysis of the printed polymer. Upon pyrolysis, the design is converted to predominantly carbon, but it remains critical to select the appropriate 2PP printing parameters to produce a high stiffness and strength carbon ma ...
DOI:
10.1016/j.carbon.2022.09.016

3. Optical and portable equipment for characterizing soil roughness

Author:
Bianca Batista Barreto; Elisângela Ribeiro; Fernando Pujaico Rivera; Roberto Alves Braga Junior; Bernardo Cândido; Blair McKenzie
Source:
Smart agricultural technology 2023 v.3 pp. 100062
ISSN:
2772-3755
Subject:
surface roughness,   etc   ; barns; composts; lighting; optical equipment; portable equipment; roughness; soil; vision;     Show all 9 Subjects
Abstract:
... Knowledge of surface roughness with the consequent presence of crust in the soil is important information for the rational management of environmental resources. Soil surface roughness can be determined by contact and noncontact methods. Contact methods have lower values and precision than noncontact methods. Therefore, the objective of this study was to develop low-cost, portable and robust optic ...
DOI:
10.1016/j.atech.2022.100062

4. Effect of surface roughness on the solar evaporation of liquid marbles

Author:
Yijun Feng; Guansheng Yao; Jinliang Xu; Lin Wang; Guohua Liu
Source:
Journal of colloid and interface science 2023 v.629 pp. 644-653
ISSN:
0021-9797
Subject:
surface roughness,   etc   ; absorption; absorptivity; carbon nanotubes; electromagnetic field; evaporation rate; heat; liquids; nanoparticles; roughness; solar energy; temperature;     Show all 12 Subjects
Abstract:
... Hypothesis: Nanostructured materials are widely used for solar energy harvesting and conversion due to their excellent photothermal properties. It is generally accepted that the better the light absorption ability, the better the photothermal conversion efficiency. Experiment: A series of experiments in solar evaporation of liquid marbles (LMs) by coating the droplets with Fe₃O₄, Ni nanoparticles ...
DOI:
10.1016/j.jcis.2022.09.116

5. Improving barrier and antibacterial properties of chitosan composite films by incorporating lignin nanoparticles and acylated soy protein isolate nanogel

Author:
Zhipeng Zou; Balarabe B. Ismail; Xinhui Zhang; Zhehao Yang; Donghong Liu; Mingming Guo
Source:
Food hydrocolloids 2023 v.134 pp. 108091
ISSN:
0268-005X
Subject:
surface roughness,   etc   ; antibacterial properties; biocompatibility; biodegradability; chitosan; composite films; hydrocolloids; light transmission; lignin; nanogels; oxygen; soy protein isolate; tensile strength;     Show all 13 Subjects
Abstract:
... Chitosan (CS) films have demonstrated strong antibacterial properties, excellent biocompatibility and biodegradability, but poor UV blocking, oxygen and water barrier and mechanical properties limit their application in antimicrobial food packaging. In this study, CS films were incorporated with nanofillers, including lignin nanoparticles (LNP, 1–5 wt %) and acylated soy protein isolate nanogel (A ...
DOI:
10.1016/j.foodhyd.2022.108091

6. Lignin: Excellent hydrogel swelling promoter used in cellulose aerogel for efficient oil/water separation

Author:
Zhenrong Tan; Ling Hu; Dongjie Yang; Dafeng Zheng; Xueqing Qiu
Source:
Journal of colloid and interface science 2023 v.629 pp. 422-433
ISSN:
0021-9797
Subject:
surface roughness,   etc   ; aerogels; biomass; cellulose; contact angle; freeze drying; hydrogels; hydrophilicity; lignin; lignin content; microstructure; oils; permeability; porosity; sol-gel processing; wastewater;     Show all 16 Subjects
Abstract:
... Super-hydrophilic/underwater super-oleophobic materials composed of biomass show great advantages for the treatment of oily wastewater due to their inherent fouling resistance. However, the development of three-dimensional materials from biomass for oil–water separation is still a challenge. It is universally acknowledged that constructing a rough structure on the surface of hydrophilic substrates ...
DOI:
10.1016/j.jcis.2022.08.185

7. Intestinal absorptivity-increasing effects of sodium N-[8-(2-hydroxybenzoyl)amino]-caprylate on food-derived bioactive peptide

Author:
Yongzhao Xu; William Kwame Amakye; Ganhong Xiao; Xuebo Liu; Jiaoyan Ren; Min Wang
Source:
Food chemistry 2023 v.401 pp. 134059
ISSN:
0308-8146
Subject:
surface roughness,   etc   ; absorption; calyx; electron microscopy; endothermy; food chemistry; hydrogen bonding; intestinal absorption; intestines; models; particle size distribution; peptides; sodium; van der Waals forces; zeta potential;     Show all 15 Subjects
Abstract:
... Delivering bioactive peptides orally is hampered by poor absorption across the gastrointestinal barrier. Using the walnut-derived peptide PW5, PPKNW, we explored whether coformulation of peptides with absorption enhancer sodium N-[8-(2-hydroxybenzoyl)aminocaprylate] (SNAC) could improve the intestinal absorption of orally-administered bioactive peptides. Herein, the application of SNAC enhanced th ...
DOI:
10.1016/j.foodchem.2022.134059

8. Sensor-integrated biocomposite membrane for food quality assessment

Author:
Pawankumar Rai; Suryansh Verma; Srishti Mehrotra; Smriti Priya; Sandeep K. Sharma
Source:
Food chemistry 2023 v.401 pp. 134180
ISSN:
0308-8146
Subject:
surface roughness,   etc   ; anthocyanins; asymmetric membranes; atomic force microscopy; biocomposites; biodegradability; biopolymers; chitosan; electron microscopy; food chemistry; food packaging; food quality; industry; milk; porosity; spoilage; starch; water solubility; water vapor;     Show all 19 Subjects
Abstract:
... The use of biopolymers is gaining momentum owing to their compatibility with various food commodities and acceptability by the industry and consumers. Biopolymers integrated with natural pigments can be used for assessing the quality of perishable packaged food products. Here, a biodegradable composite membrane of starch and chitosan, integrated with anthocyanin has been developed. The chromogenic ...
DOI:
10.1016/j.foodchem.2022.134180

9. Environmental, technological and economical aspects of cryogenic assisted hard machining operation of inconel 718: A step towards green manufacturing

Author:
Mohd Danish; Munish Kumar Gupta; Saeed Rubaiee; Anas Ahmed; Murat Sarıkaya; Grzegorz M. Krolczyk
Source:
Journal of cleaner production 2022 v.337 pp. 130483
ISSN:
0959-6526
Subject:
surface roughness,   etc   ; energy; lubrication;     Show all 3 Subjects
Abstract:
... It is critical in today's modern manufacturing era to have a machining system that is both environmentally and economically beneficial. It is therefore necessary in many ways to illustrate a relationship between technological, economic and sustainability measures in the machining of Inconel 718. In present investigation, the experimental studies are incorporated by the use of the dry and MQL (mini ...
DOI:
10.1016/j.jclepro.2022.130483

10. On fluid flow regime transition in rough rock fractures: Insights from experiment and fluid dynamic computation

Author:
Yong Luo; Zhenyu Zhang; Yakun Wang; Jan Nemcik; Jiahua Wang
Source:
Journal of hydrology 2022 v.607 pp. 127558
ISSN:
0022-1694
Subject:
surface roughness,   etc   ; roughness; water flow;     Show all 3 Subjects
Abstract:
... The influence of roughness, aperture and asperity irregularity on fluid flow regimes in rough rock fractures was investigated by performing coupled triaxial water flow tests and fluid dynamic computation. Ten sets of fabricated curved wedges were developed to obtain different fracture surface roughness by splitting under compression. Three fluid flow regimes were identified in mated rock fractures ...
DOI:
10.1016/j.jhydrol.2022.127558

11. Three-Dimensional Printing in Stimuli-Responsive Yield-Stress Fluid with an Interactive Dual Microstructure

Author:
Weijian Hua; Kellen Mitchell; Lasith S. Kariyawasam; Changwoo Do; Jihua Chen; Lily Raymond; Naima Valentin; Ryan Coulter; Ying Yang; Yifei Jin
Source:
ACS applied materials & interfaces 2022 v.14 no.34 pp. 39420-39431
ISSN:
1944-8252
Subject:
surface roughness,   etc   ; microstructure; nanocomposites; thermosensitivity;     Show all 4 Subjects
Abstract:
... Yield-stress support bath-enabled three-dimensional (3D) printing has been widely used in recent years for diverse applications. However, current yield-stress fluids usually possess single microstructures and still face the challenges of on-demand adding and/or removing support bath materials during printing, constraining their application scope. This study aims to propose a concept of stimuli-res ...
DOI:
10.1021/acsami.2c12465

12. Cell performance and flow losses of proton exchange membrane fuel cells with orientated-type flow channels

Author:
Hao Chen; Hang Guo; Fang Ye; Chong Fang MA
Source:
Renewable energy 2022 v.181 pp. 1338-1352
ISSN:
0960-1481
Subject:
surface roughness,   etc   ; friction; mathematical models;     Show all 3 Subjects
Abstract:
... Orientated-type flow channels of proton exchange membrane fuel cells having baffles increase the cell performance, however, the higher power loss accounted by baffles, is a non-ignorable disadvantage. Previous literature proves that the baffles in channels cause the increase in power losses, while how the baffles affect the power losses, including the frictional losses and local losses, are still ...
DOI:
10.1016/j.renene.2021.09.107

13. Experiment of hydrocyclone under different inlet velocity and its wear analysis of wall and particle

Author:
Zhuwei Gao; Zhongxin Liu; Shihao Wang; Chengxin Li; Xinyu Qi; Haoran Ling
Source:
Powder technology 2022 v.405 pp. 117541
ISSN:
0032-5910
Subject:
surface roughness,   etc   ; probability; roughness; technology;     Show all 4 Subjects
Abstract:
... Although hydrocyclone has been extensively used in various separation processes, there is a lack of systematic analysis on the wear mechanism. Herein, we did the flow experiment under four valve openings of 23°, 30°, 36° and 41°, and the results showed that there were few depressions at the overflow port and the wear was not serious compared with the inlet. The increase of inlet velocity would inc ...
DOI:
10.1016/j.powtec.2022.117541

14. Determination of Milling Performance of Jute and Flax Fiber Reinforced Composites

Author:
Yahya Hışman Çelik; Mehmet Suat Alp
Source:
Journal of natural fibers 2022 v.19 no.2 pp. 782-796
ISSN:
1544-046X
Subject:
surface roughness,   etc   ; delamination; flax; jute; vibration;     Show all 5 Subjects
Abstract:
... The usage area of natural fiber reinforced composite materials has been increasing day by day, due to their attaining to not only ecological benefits but also high mechanical properties with their low weight. After the fabrication of natural fiber reinforced composites, they need to be subjected to secondary processes such as milling, drilling and turning processes according to their field of use. ...
DOI:
10.1080/15440478.2020.1764435

15. Heterogeneous Nucleation of an Embryo in the Shape of Square Prism: Effect of Surface Roughness

Author:
Fuqian Yang
Source:
Langmuir 2022 v.38 no.23 pp. 7218-7224
ISSN:
1520-5827
Subject:
surface roughness,   etc   ; anisotropy; energy; surface tension;     Show all 4 Subjects
Abstract:
... The solution-based synthesis in a confined space between two parallel plates has been demonstrated to be a potential approach to grow single-crystal perovskite films of large sizes, such as CH₃NH₃PbX₃ (X = Br and I) single-crystal films. In this work, we study the effects of surface roughness on the separation between two parallel, rough plates, and heterogeneous nucleation of an embryo in the sha ...
DOI:
10.1021/acs.langmuir.2c00588

16. Poly(2,6-azuleneethynylene)s: Design, Synthesis, and Property Studies

Author:
Junjun Xiang; Wen Liang Tan; Jianwei Zhang; Yang Wang; Chao Duan; Christopher R. McNeill; Xiaodi Yang; Congwu Ge; Xike Gao
Source:
Macromolecules 2022 v.55 no.18 pp. 8074-8083
ISSN:
1520-5835
Subject:
surface roughness,   etc   ; absorption; azulene; polymers; transistors;     Show all 5 Subjects
Abstract:
... Two poly(2,6-azuleneethynylene)s (PAzE-1 and PAzE-2) were designed and synthesized. The 2,6-azulene units are head-to-tail-arranged in PAzE-1, while there are three types of orientations of 2,6-azulene units in PAzE-2: head-to-tail, head-to-head, and tail-to-tail segments, of which the head-to-tail one accounts for about 27% (determined from ¹H NMR spectra). Such a structural distinction endows th ...
DOI:
10.1021/acs.macromol.2c01101

17. Suppression effect of porous media on natural gas explosion in utility tunnels

Author:
Jiansong Wu; Yimeng Zhao; Rui Zhou; Jitao Cai; Yiping Bai; Lei Pang
Source:
Fire safety journal 2022 v.128 pp. 103522
ISSN:
0379-7112
Subject:
surface roughness,   etc   ; fire safety; natural gas;     Show all 3 Subjects
Abstract:
... The prevention and control of natural gas explosion accidents in utility tunnels have drawn great concern due to the unexpected severe consequence. In this study, put forward an explosion suppression measure apply to utility tunnels. An experimental platform for simulating the process of the natural gas explosion in utility tunnels is set up to study the flame propagation law and pressure dynamics ...
DOI:
10.1016/j.firesaf.2021.103522

18. Insights into surface chemistry induced powder layer characteristic evolutions in additive manufacturing

Author:
Qiong Wu; Chuang Qiao; Wei Fan; Qingchuan Zou; Xizhong An; Haitao Fu; Hao Zhang; Xiaohong Yang; Haibin Ji; Shujun Li; Xing Zhang; Lin Wang
Source:
Powder technology 2022 v.407 pp. 117635
ISSN:
0032-5910
Subject:
surface roughness,   etc   ; cohesion; friction; people; roughness;     Show all 5 Subjects
Abstract:
... Compared with large amount of work on the powder layer characteristics in powder-bed-based additive manufacturing (AM) under different operating conditions and powder properties, the significant effects of powder surface chemistry on the quality of the powder layer were less investigated. To further enhance people's insights in this aspect so as to obtain superior powder layer for subsequent proce ...
DOI:
10.1016/j.powtec.2022.117635

19. Electron Transporting Perylene Diimide-Based Random Terpolymers with Variable Co-Monomer Feed Ratio: A Route to All-Polymer-Based Photodiodes

Author:
Stefania Aivali; Peisen Yuan; Julianna Panidi; Dimitra G. Georgiadou; Themis Prodromakis; Joannis K. Kallitsis; Panagiotis E. Keivanidis; Aikaterini K. Andreopoulou
Source:
Macromolecules 2022 v.55 no.2 pp. 672-683
ISSN:
1520-5835
Subject:
surface roughness,   etc   ; absorption; energy; molecular conformation; solubility;     Show all 5 Subjects
Abstract:
... A route toward processable n-type terpolymers is presented herein based on the random donor–acceptor–donor–acceptor (D–A1)-(D–A2) molecular configuration. Carbazole is utilized as the electron donating unit (D) combined with perylene diimide (PDI) as the first electron acceptor (A1) and either one of two different benzothiadiazole (BTZ) derivatives (di-thienyl substituted-BTZ and di-3,4-ethylenedi ...
DOI:
10.1021/acs.macromol.1c02159

20. Scale-dependent rock surface characterization using LiDAR surveys

Author:
Jonathan D. Aubertin; D. Jean Hutchinson
Source:
Engineering geology 2022 v.301 pp. 106614
ISSN:
0013-7952
Subject:
surface roughness,   etc   ; geology; geometry; lidar; roughness; scanners;     Show all 6 Subjects
Abstract:
... Evaluating topographical roughness along exposed rock surfaces is to a large extent subjective to the intended application and the related measurement scale. In tunneling and mining applications, topographical roughness of rock surfaces is a key factor in assessing the performance of extractive processes such as blasting backbreak, haulage surface condition and excavation geometry. The scale used ...
DOI:
10.1016/j.enggeo.2022.106614