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Journal articles on the topic 'Hydrophobicity scale'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Peters, Christoph, and Arne Elofsson. "Why is the biological hydrophobicity scale more accurate than earlier experimental hydrophobicity scales?" Proteins: Structure, Function, and Bioinformatics 82, no. 9 (2014): 2190–98. http://dx.doi.org/10.1002/prot.24582.

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2

Koehler, Julia, Nils Woetzel, René Staritzbichler, Charles R. Sanders, and Jens Meiler. "A unified hydrophobicity scale for multispan membrane proteins." Proteins: Structure, Function, and Bioinformatics 76, no. 1 (2009): 13–29. http://dx.doi.org/10.1002/prot.22315.

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3

Wang, Mengjie, Zilong Peng, Chi Li, et al. "Multi-Scale Structure and Directional Hydrophobicity of Titanium Alloy Surface Using Electrical Discharge." Micromachines 13, no. 6 (2022): 937. http://dx.doi.org/10.3390/mi13060937.

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Titanium alloys with special macro-micro composite structures of directional hydrophobicity are difficult to prepare due to poor thermal conductivity and good corrosion resistance, inhibiting the wide engineering applications for aerospace, marine engineering, and biomedicine. To prepare macro-micro composite structures on the surface of titanium alloys and achieve directional hydrophobicity, the sub-millimeter structures with an edge width of 150 μm, a groove width of 250 μm, and a depth of 250 μm were fabricated on the titanium alloy by wire electrical discharge machining (WEDM) technology,

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4

Liu, Hong, Saman Dharmatilleke, and Andrew A. O. Tay. "A chip scale nanofluidic pump using electrically controllable hydrophobicity." Microsystem Technologies 16, no. 4 (2009): 561–70. http://dx.doi.org/10.1007/s00542-009-0960-9.

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5

Wimley, William C., and Stephen H. White. "Experimentally determined hydrophobicity scale for proteins at membrane interfaces." Nature Structural & Molecular Biology 3, no. 10 (1996): 842–48. http://dx.doi.org/10.1038/nsb1096-842.

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6

Urry, Dan W., D. Channe Gowda, Timothy M. Parker, et al. "Hydrophobicity scale for proteins based on inverse temperature transitions." Biopolymers 32, no. 9 (1992): 1243–50. http://dx.doi.org/10.1002/bip.360320913.

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7

Ali, Siad Dahir, Mette Heidemann Rasmussen, Jacopo Catalano, Christian Husum Frederiksen, and Tobias Weidner. "Bioinspired nanofilament coatings for scale reduction on steel." Beilstein Journal of Nanotechnology 16 (January 9, 2025): 25–34. https://doi.org/10.3762/bjnano.16.3.

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Scaling of steel surfaces, prevalent in various industrial applications, results in significant operational inefficiencies and maintenance costs. Inspired by the natural hydrophobicity of springtail (Collembola) skin, which employs micro- and nanostructures to repel water, we investigate the application of silicone nanofilaments (SNFs) as a coating on steel surfaces to mitigate scaling. Silicone nanofilaments, previously successful on polymers, textiles, and glass, are explored for their hydrophobic properties and stability on steel. Our study demonstrates the successful coating of stainless s

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8

Park, Sohyun, Jooyoun Kim, and Chung Hee Park. "Influence of micro and nano-scale roughness on hydrophobicity of a plasma-treated woven fabric." Textile Research Journal 87, no. 2 (2016): 193–207. http://dx.doi.org/10.1177/0040517515627169.

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A superhydrophobic fabric surface was fabricated by forming a dual roughness structure in combination with lowered surface energy. The contribution of the innate micro-scale roughness resulting from the waviness of filaments and yarns in a woven fabric on hydrophobicity was investigated in comparison with a smooth film surface. Though the micro-scale roughness coming from the multi-filaments of fabric was conducive in enhancing the hydrophobicity of the surface, the micro-scale roughness itself was not enough to create superhydrophobicity. Thus a nano-scale roughness was introduced by an aniso

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9

Huang, Xiaochuan, Chen Li, Kuichang Zuo, and Qilin Li. "Predominant Effect of Material Surface Hydrophobicity on Gypsum Scale Formation." Environmental Science & Technology 54, no. 23 (2020): 15395–404. http://dx.doi.org/10.1021/acs.est.0c03826.

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10

Kapcha, Lauren H., and Peter J. Rossky. "A Simple Atomic-Level Hydrophobicity Scale Reveals Protein Interfacial Structure." Journal of Molecular Biology 426, no. 2 (2014): 484–98. http://dx.doi.org/10.1016/j.jmb.2013.09.039.

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11

Kwon, Tae Woo, Matthew Stanley Ambrosia, Joonkyoung Jang, and Man Yeong Ha. "Dynamic hydrophobicity of heterogeneous pillared surfaces at the nano-scale." Journal of Mechanical Science and Technology 29, no. 4 (2015): 1663–71. http://dx.doi.org/10.1007/s12206-015-0338-0.

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12

Carugo, Oliviero. "Prediction of Polypeptide Fragments Exposed to the Solvent." In Silico Biology: Journal of Biological Systems Modeling and Multi-Scale Simulation 3, no. 4 (2003): 417–28. https://doi.org/10.3233/isb-00106.

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A method is presented to predict those polypeptide segments within a globular protein that are more likely to be exposed to the solvent. The protein amino acidic sequence is the only information needed by this new algorithm. It uses a consensus hydrophobicity scale, derived from 28 known scales, and it is based on the comparison between the average hydrophobicity of a polypeptide fragment and the average hydrophobicity expected for a segment containing the same number of residues. The latter values are pre-computed from a non-redundant set of single chain protein structural domains. The compar

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13

Zhang, Wei Wei, Li Ying Qian, and Hui Ning Xiao. "Hydrophobicity of Beeswax-Chitosan Latex Coated Paper." Advanced Materials Research 936 (June 2014): 1077–81. http://dx.doi.org/10.4028/www.scientific.net/amr.936.1077.

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Both water repellency and water vapour barrier properties were endowed at paper surface by coating with beeswax-chitosan latex. It was found that the water vapour transmission rate of coated paper decreased as the drying temperature increased. However, water contact angle was not affected with it. Although the surface morphology deformed at high drying temperature, the roughness values maintained at micro-scale. Further analysis indicated that the water vapour barrier property of coated paper was influenced by the density of the coating layer.

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14

Marx, Dagan, and Karen Fleming. "Side Chain Hydrophobicity Scale using the Tilted Beta-Barrel Protein PagP." Biophysical Journal 112, no. 3 (2017): 205a. http://dx.doi.org/10.1016/j.bpj.2016.11.1134.

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15

Srivastava, Sheenal, Yumi Patton, David W. Fisher, and Graham R. Wood. "Cotranslational Protein Folding and Terminus Hydrophobicity." Advances in Bioinformatics 2011 (June 6, 2011): 1–8. http://dx.doi.org/10.1155/2011/176813.

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Peptides fold on a time scale that is much smaller than the time required for synthesis, whence all proteins potentially fold cotranslationally to some degree (followed by additional folding events after release from the ribosome). In this paper, in three different ways, we find that cotranslational folding success is associated with higher hydrophobicity at the N-terminus than at the C-terminus. First, we fold simple HP models on a square lattice and observe that HP sequences that fold better cotranslationally than from a fully extended state exhibit a positive difference (N−C) in terminus hy

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16

Nishikawa, Tsuyoshi, Hiroki Narita, Soichiro Ogi, Yoshikatsu Sato та Shigehiro Yamaguchi. "Hydrophobicity and CH/π-interaction-driven self-assembly of amphiphilic aromatic hydrocarbons into nanosheets". Chemical Communications 55, № 99 (2019): 14950–53. http://dx.doi.org/10.1039/c9cc08070h.

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The hydrophobicity and CH/π-interaction-driven self-assembly of an amphiphile that contains a biphenylanthracene group furnishes micrometer-scale nanosheets with a windmill-shaped molecular packing structure in dilute aqueous solution.

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17

Zhang, J. Y., L. J. Qin, F. G. Liu, and C. S. Lou. "Effects of controlled shot peening on multi-scale morphology and hydrophobicity of 316L stainless steel." Digest Journal of Nanomaterials and Biostructures 17, no. 4 (2022): 1151–61. http://dx.doi.org/10.15251/djnb.2022.174.1151.

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In this study, we used shot peening-etching method to construct the multi-scale morphology on the surface of 316L stainless steel, assisted by surface modification to improve hydrophobicity. The effects of the diameter of projectile (0.2, 0.3, 0.4 mm) and shot peening time (1, 1.5, 2, 2.5 min) on the multi-scale morphology and hydrophobicity of the samples were studied. Meanwhile, the surface morphology was examined by metallographic microscope (OM) and scanning electron microscope (SEM). The surface profile and roughness were characterized by laser scanning confocal microscope (LSCM). The fra

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18

YAMASHIRO, DONALD. "THE PURIFICATION OF PEPTIDES BY PARTITION CHROMATOGRAPHY BASED ON A HYDROPHOBICITY SCALE*." International Journal of Peptide and Protein Research 13, no. 1 (2009): 5–11. http://dx.doi.org/10.1111/j.1399-3011.1979.tb01843.x.

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19

Moon, C. P., and K. G. Fleming. "Side-chain hydrophobicity scale derived from transmembrane protein folding into lipid bilayers." Proceedings of the National Academy of Sciences 108, no. 25 (2011): 10174–77. http://dx.doi.org/10.1073/pnas.1103979108.

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20

Sinha, Arun Kumar, Mrinmoyee Basu, Mukul Pradhan, Sougata Sarkar, and Tarasankar Pal. "Fabrication of Large-Scale Hierarchical ZnO Hollow Spheroids for Hydrophobicity and Photocatalysis." Chemistry - A European Journal 16, no. 26 (2010): 7865–74. http://dx.doi.org/10.1002/chem.200903347.

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21

Li, Xin, Chen Wang, Guang Yi Sun, Xin Zhao, Hai Xia Zhang, and Gui Zhang Lu. "Research on the Hydrophobicity of Black Silicon Based on Virtual Process." Key Engineering Materials 503 (February 2012): 329–33. http://dx.doi.org/10.4028/www.scientific.net/kem.503.329.

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In previous research, in order to simulate the 3D structure of MEMS device, we developed a software named Virtual Process which can help the designer to testify his/her design by comparing the simulation result with real requirements. As Virtual Process could only find out the difference in structure, we put forward a new method, which can compare the functions of the device to verify the simulation result. In this paper, we take hydrophobicity as an example to show the comparison between the results of simulation and experiment. The hydrophobicity is expressed by contact angle, which is measu

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22

Monroe, Jacob I., Sally Jiao, R. Justin Davis, Dennis Robinson Brown, Lynn E. Katz, and M. Scott Shell. "Affinity of small-molecule solutes to hydrophobic, hydrophilic, and chemically patterned interfaces in aqueous solution." Proceedings of the National Academy of Sciences 118, no. 1 (2020): e2020205118. http://dx.doi.org/10.1073/pnas.2020205118.

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Performance of membranes for water purification is highly influenced by the interactions of solvated species with membrane surfaces, including surface adsorption of solutes upon fouling. Current efforts toward fouling-resistant membranes often pursue surface hydrophilization, frequently motivated by macroscopic measures of hydrophilicity, because hydrophobicity is thought to increase solute–surface affinity. While this heuristic has driven diverse membrane functionalization strategies, here we build on advances in the theory of hydrophobicity to critically examine the relevance of macroscopic

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23

Dannenhoffer-Lafage, Thomas, and Robert B. Best. "A Data-Driven Hydrophobicity Scale for Predicting Liquid–Liquid Phase Separation of Proteins." Journal of Physical Chemistry B 125, no. 16 (2021): 4046–56. http://dx.doi.org/10.1021/acs.jpcb.0c11479.

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24

Hoffmann, Waldemar, Jennifer Langenhan, Susanne Huhmann, et al. "An Intrinsic Hydrophobicity Scale for Amino Acids and Its Application to Fluorinated Compounds." Angewandte Chemie International Edition 58, no. 24 (2019): 8216–20. http://dx.doi.org/10.1002/anie.201813954.

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25

Peta, Katarzyna. "Multiscale Wettability of Microtextured Irregular Surfaces." Materials 17, no. 23 (2024): 5716. http://dx.doi.org/10.3390/ma17235716.

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Surface microgeometry created by the energy of electric discharges is related to surface wetting behavior. These relationships change depending on the scale of observation. In this work, contact angles correlated with the surface complexity of AA 6060 after electro-discharge machining were analyzed at different observation scales. This research focuses on the methodology of selecting the best scales for observing wetting phenomena on irregular surfaces, as well as indicating the topographic characterization parameters of the surface in relation to the scales. Additionally, the geometric featur

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26

Yu, Hang, Bing Rui Lu, Hui Li, Jian Ying Li, and Ran Liu. "Fabrication of Nanostructured Hydrophobic Surfaces with Laser Interference Lithography." Advanced Materials Research 815 (October 2013): 457–64. http://dx.doi.org/10.4028/www.scientific.net/amr.815.457.

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The fabrication of large area nanoscale periodic structures on material surfaces for hydrophobicity engineering has been difficult due to the complex processes. Here we propose a two-step fabrication method for periodic nanostructures by combining laser interference lithography (LIL) and reactive ion etching (RIE). Sub-micron periodic nanotip patterns are fabricated in the photoresist by LIL, and then transferred into the silicon substrate using RIE. By measuring the contact angle (CA) of a water droplet on the substrate surface, the wettability of the surface with nanotip structures of variou

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27

Seixas Feio, Juliana Auzier, Ewerton Cristhian Lima de Oliveira, Claudomiro de Souza de Sales, Kauê Santana da Costa, and Anderson Henrique Lima e Lima. "Investigating molecular descriptors in cell-penetrating peptides prediction with deep learning: Employing N, O, and hydrophobicity according to the Eisenberg scale." PLOS ONE 19, no. 6 (2024): e0305253. http://dx.doi.org/10.1371/journal.pone.0305253.

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Cell-penetrating peptides comprise a group of molecules that can naturally cross the lipid bilayer membrane that protects cells, sharing physicochemical and structural properties, and having several pharmaceutical applications, particularly in drug delivery. Investigations of molecular descriptors have provided not only an improvement in the performance of classifiers but also less computational complexity and an enhanced understanding of membrane permeability. Furthermore, the employment of new technologies, such as the construction of deep learning models using overfitting treatment, promote

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28

Tang, Yin, Zheng Fang, Yang Fei, et al. "Wettability Behaviour of Metal Surfaces after Sequential Nanosecond and Picosecond Laser Texturing." Micromachines 15, no. 9 (2024): 1146. http://dx.doi.org/10.3390/mi15091146.

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This study examines the wettability behaviour of 304 stainless steel (304SS) and Ti-6Al-4V (Ti64) surfaces after sequential nanosecond (ns) and picosecond (ps) laser texturing; in particular, how the multi-scale surface structures created influence the lifecycle of surface hydrophobicity. The effect of different post-process treatments is also examined. Surfaces were analysed using Scanning Electron Microscopy (SEM), a white light interferometer optical profiler, and Energy Dispersive X-ray (EDX) spectroscopy. Wettability was assessed through sessile drop contact angle (CA) measurements, condu

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29

Monroe, Jacob, Mikayla Barry, Audra DeStefano, et al. "Water Structure and Properties at Hydrophilic and Hydrophobic Surfaces." Annual Review of Chemical and Biomolecular Engineering 11, no. 1 (2020): 523–57. http://dx.doi.org/10.1146/annurev-chembioeng-120919-114657.

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The properties of water on both molecular and macroscopic surfaces critically influence a wide range of physical behaviors, with applications spanning from membrane science to catalysis to protein engineering. Yet, our current understanding of water interfacing molecular and material surfaces is incomplete, in part because measurement of water structure and molecular-scale properties challenges even the most advanced experimental characterization techniques and computational approaches. This review highlights progress in the ongoing development of tools working to answer fundamental questions

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30

Lo, Calvin, Jeltzlin Semerel, den Berg Corjan van, René H. Wijffels, and Michel H. M. Eppink. "Eutectic solvents with tuneable hydrophobicity: lipid dissolution and recovery." RSC Advances 11, no. 14 (2021): 8142–49. https://doi.org/10.1039/d1ra00306b.

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Despite the promising advantages of eutectic solvents, the application of these solvents as an extraction solvent is still limited due to the challenging product recovery. Previously, it was reported that lipids could be recovered from a hydrophobic eutectic solvent with the principle of switchable hydrophobicity. However, this method still involves additional chemicals, such as polymeric amines, water, and CO<sub>2</sub>, which need to be removed later. In this study, we proposed a different approach by shifting the hydrophobicity spectrum of a semi-hydrophobic solvent. Made of hydrophilic im

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31

Xu, Wei, Qiu Feng An, and Wei Xu. "Fabrication of Super-Hydrophobic Textile Surface with Aminopolysiloxane and Nano-Silica via a Solution Immersion Process." Applied Mechanics and Materials 65 (June 2011): 136–40. http://dx.doi.org/10.4028/www.scientific.net/amm.65.136.

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In this article, we exploited a solution immersion method to conveniently construct a superhydrophobic textile surface with N-β-aminoethyl-γ-aminopropyl polysiloxane (ASO-1) and nano-silica and then investigated its micro-morphology and ultra-hydrophobic property using Field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS) and Static water contact angle analyzer, respectively. Results show that a hydrophobic film and many lotus-leaf-like micro-nano scale tubercles are coated on the textile surface, which are the reasons why the textile changed from hydrophi

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32

Malm, Lisa, Ann-Sofi Kindstedt Danielsson, Anders Sand, Jan Rosenkranz, and Ingvar Ymén. "Application of Dynamic Vapor Sorption for evaluation of hydrophobicity in industrial-scale froth flotation." Minerals Engineering 127 (October 2018): 305–11. http://dx.doi.org/10.1016/j.mineng.2017.11.004.

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33

Shoute, Lian C. T., Weidi Hua, Ryan Kisslinger, et al. "Threshold hydrophobicity for inhibition of salt scale formation on SAM-modified titania nanotube arrays." Applied Surface Science 473 (April 2019): 282–90. http://dx.doi.org/10.1016/j.apsusc.2018.11.173.

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34

Zhu, Chongqin, Yurui Gao, Hui Li, et al. "Characterizing hydrophobicity of amino acid side chains in a protein environment via measuring contact angle of a water nanodroplet on planar peptide network." Proceedings of the National Academy of Sciences 113, no. 46 (2016): 12946–51. http://dx.doi.org/10.1073/pnas.1616138113.

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Hydrophobicity of macroscopic planar surface is conventionally characterized by the contact angle of water droplets. However, this engineering measurement cannot be directly extended to surfaces of proteins, due to the nanometer scale of amino acids and inherent nonplanar structures. To measure the hydrophobicity of side chains of proteins quantitatively, numerous parameters were developed to characterize behavior of hydrophobic solvation. However, consistency among these parameters is not always apparent. Herein, we demonstrate an alternative way of characterizing hydrophobicity of amino acid

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35

Yao, Dong, Guangfeng Shi, Jingran Zhang, and Siwei Meng. "An investigation on the adhesion of dual-scale micro-nano composite structure on the surface of aluminum." Surface Topography: Metrology and Properties 11, no. 2 (2023): 025026. http://dx.doi.org/10.1088/2051-672x/acdb89.

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Abstract Adhesion is a crucial characteristic of hydrophobic surfaces that significantly impacts their practical applications. This paper proposes an innovative method for preparing a dual-scale micro-nano composite structure surface by combining mechanical ruling and anodic oxidation, which demonstrates great potential in enhancing hydrophobic surface properties. Through the analysis of the influence of micro-groove depth on the adhesion of hydrophobic surfaces, it has been discovered that micro-groove dimensions can be used to control surface adhesion while maintaining hydrophobicity, withou

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36

Zhu, Weibiao, Yazhou Xu, Jinxin He, and Xia Dong. "Transparent Superhydrophobic Coatings with Mechanical and Chemical Stability Prepared by Modified Polyhedral Oligosilsesquioxanes via UV-Curable Method." Coatings 13, no. 3 (2023): 498. http://dx.doi.org/10.3390/coatings13030498.

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Superhydrophobic coating with applicable transmittance was synthesized by simple UV-curable method which was likely suitable for large-scale production. The super-hydrophobicity was derived from the component containing modified polyhedral oligomeric silsesquioxanes which was chosen for low free energy and the potential to form hierarchical structure. The coating adhesion could reach the highest level by strip tape peel test. Compared to the UV-cured commercial coatings, the coating adhesion is enhanced by at least two levels. Super-hydrophobicity was preserved after long duration of water dro

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37

Walkowicz, Monika, Piotr Osuch, Małgorzata Zasadzińska, Paweł Strzępek, and Klaudia Kludacz. "Effect of Nanosecond Laser Ablation and Oxidation on the Surface Wettability and Microstructure of Cu-ETP Copper Sheets." Coatings 15, no. 4 (2025): 383. https://doi.org/10.3390/coatings15040383.

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Nanosecond laser ablation effectively modifies Cu-ETP copper surfaces by controlling wettability and microstructure. This study examines the effects of nanosecond fiber laser processing and subsequent oxidation on surface evolution. The analyzed parameters include fluence (25.46–1018.59 J/cm2), wavelength (1064 nm), repetition rate (25–1000 kHz), and pulse duration (2–500 ns). To investigate high energy densities, fluence values were set above typical ablation thresholds, inducing hierarchical surface structures affecting wettability. Post-ablation oxidation was examined under two conditions:

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38

Ishihama, Yasushi, Yoshiya Oda, and Naoki Asakawa. "A Hydrophobicity Scale Based on the Migration Index from Microemulsion Electrokinetic Chromatography of Anionic Solutes." Analytical Chemistry 68, no. 6 (1996): 1028–32. http://dx.doi.org/10.1021/ac9510402.

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39

Grigoryan, Marine, Dmitry Shamshurin, Victor Spicer, and Oleg V. Krokhin. "Unifying Expression Scale for Peptide Hydrophobicity in Proteomic Reversed Phase High-Pressure Liquid Chromatography Experiments." Analytical Chemistry 85, no. 22 (2013): 10878–86. http://dx.doi.org/10.1021/ac402310t.

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40

Hu, Keke, Bing Xu, and HuiBo Shao. "Determination of hydrophobicity scale of tetraphenylborate and its derivatives by ferrocene based three-phase electrodes." Electrochemistry Communications 50 (January 2015): 36–38. http://dx.doi.org/10.1016/j.elecom.2014.11.005.

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41

White, Stephen H., and Eric Lindner. "Determination of a Biological Hydrophobicity Scale for SecA- Guided Insertion of Single-Span Membrane Proteins." Biophysical Journal 118, no. 3 (2020): 368a. http://dx.doi.org/10.1016/j.bpj.2019.11.2109.

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42

Liu, Junling, Xicheng Bao, Yesheng Hao, et al. "Role of the Polar Proportion of Compound Collectors in Low-Rank Coal Flotation Upgrading: Insights from the Molecular Scale." Minerals 13, no. 4 (2023): 524. http://dx.doi.org/10.3390/min13040524.

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The compound collector, composed of polar and nonpolar parts, is a current research hotspot in low-rank coal (LRC) flotation because of its outstanding flotation efficiency and cost-effectiveness. However, the selection of compound proportions lacks theoretical guidance. In this study, we comprehensively investigate the internal mechanism underlying the influence of the compound proportion (oleic acid (OA):dodecane (DD)) on LRC flotation. The molecular dynamics (MD) simulation between bubble and oil film was simultaneously employed to study the surface interactions between three phases in cont

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43

Sochan, Agata, Michał Beczek, Rafał Mazur, Cezary Polakowski, Magdalena Ryżak, and Andrzej Bieganowski. "Splash erosion and surface deformation following a drop impact on the soil with different hydrophobicity levels and moisture content." PLOS ONE 18, no. 5 (2023): e0285611. http://dx.doi.org/10.1371/journal.pone.0285611.

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The splash phenomenon and the scale of the surface deformation of post-fire soils in the variants of various hydrophobicity and moisture content were studied. Splash erosion is the result of the impact of a single water drop and was analysed using high-speed cameras, while the surface deformation was parameterized using a structured light scanner. The extremely water-repellent variant (dry_V) showed distinct differences, expressed primarily in the number of ejected particles, which was 2.5 times higher than in the four soils with lower levels of hydrophobicity. It was also observed that as a r

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44

Jankauskaitė, Virginija, Pranas Narmontas, and Algirdas Lazauskas. "Control of Polydimethylsiloxane Surface Hydrophobicity by Plasma Polymerized Hexamethyldisilazane Deposition." Coatings 9, no. 1 (2019): 36. http://dx.doi.org/10.3390/coatings9010036.

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The properties of a polydimethylsiloxane (PDMS) surface were modified by a one-step deposition of plasma polymerized hexamethyldisilazane (pp-HMDS) by the arc discharge method. Scanning electron microscopy, atomic force microscopy, and Fourier-transform infrared spectroscopy analytical techniques were employed for morphological, structural, and chemical characterization of the pp-HMDS modified PDMS surface. The changes in PDMS substrate wetting properties were evaluated by means of contact angle measurements. The unmodified PDMS surface is hydrophobic with a contact angle of 122°, while, after

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45

Ferrari, Michele, Francesca Cirisano, and M. Carmen Morán. "Mammalian Cell Spheroids on Mixed Organic–Inorganic Superhydrophobic Coating." Molecules 27, no. 4 (2022): 1247. http://dx.doi.org/10.3390/molecules27041247.

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Three-dimensional cell culture has become a reliable method for reproducing in vitro cellular growth in more realistic physiological conditions. The surface hydrophobicity strongly influences the promotion of cell aggregate formation. In particular, for spheroid formation, highly water-repellent coatings seem to be required for the significant effects of the process. In this work, surfaces at different wettability have been compared to observe their influence on the growth and promotion of aggregates of representative mammalian cell lines, both tumoral and non-tumoral (3T3, HaCat and MCF-7 cel

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46

Man-Chi Lo, Irene, Cheng-Hao Lee, and Howard M. Liljestrand. "Tricaprylmethylammonium bentonite compexes as adsorbents for benzene, toluene, ethylbenzene and xylene." Water Science and Technology 34, no. 7-8 (1996): 319–25. http://dx.doi.org/10.2166/wst.1996.0637.

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An organoclay complex was synthesized by placing quaternary ammonium compound on low-charge bentonite (CEC = 90 meq/100 g) through cation exchange reaction. This kind of compex was examined for its ability to adsorb non-polar hydrocarbons such as benzene, toluene, ethylbenzene and o-xylene (BETX). The organic cation used in this study was the tricaprylmethylammonium (TCMA) ion which contains long-chain alkyl (tricapryl) groups of high hydrophobicity. The characteristics of TCMA-bentonite are presented from the results of Infrared red spectrum. The high adsorption of benzene, toluene, ethylbenz

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47

Wang, Yongpeng, Pengtao Yan, Xintong Huo, Mengzhu Liu, Haibo Zhang, and Zhenhua Jiang. "3D network super-hydrophobic hexafluorbisphenol A poly(aryl ether ketone) membrane prepared by one-step electrospraying." High Performance Polymers 32, no. 10 (2020): 1094–101. http://dx.doi.org/10.1177/0954008320930064.

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Novel super-hydrophobic poly(aryl ether ketone) (PAEK) membranes have been firstly prepared by modifying ordinary PAEK into hexafluorbisphenol A-PAEK through traditional nucleophilic condensation polymerization and subsequently simple electrospraying technique. With the solution concentration increased, the micromorphology exhibited nanofibers, nanofiber with spindles, 3D network with microspheres embedded, microspheres and dense films, successively. The static water contact angle increased from 99° to 155°, while the sliding angle from 1.3° to 6.8° (±1°), in which the 3D network presented the

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48

Lanrezac, André, and Marc Baaden. "UNILIPID, a Methodology for Energetically Accurate Prediction of Protein Insertion into Implicit Membranes of Arbitrary Shape." Membranes 13, no. 3 (2023): 362. http://dx.doi.org/10.3390/membranes13030362.

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The insertion of proteins into membranes is crucial for understanding their function in many biological processes. In this work, we present UNILIPID, a universal implicit lipid-protein description as a methodology for dealing with implicit membranes. UNILIPID is independent of the scale of representation and can be applied at the level of all atoms, coarse-grained particles down to the level of a single bead per amino acid. We provide example implementations for these scales and demonstrate the versatility of our approach by accurately reflecting the free energy of transfer for each amino acid

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Yang, Mei, Jian Zhang, Xin Guo, et al. "Effect of Phosphorylation on the Structure and Emulsification Properties of Different Fish Scale Gelatins." Foods 11, no. 6 (2022): 804. http://dx.doi.org/10.3390/foods11060804.

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This study aimed to investigate the effect of phosphorylation on the structure and emulsification of Coregonus peled, Esox lucius and Grass carp scale gelatin. Fourier transform infrared spectroscopy (FTIR) and endogenous fluorescence spectra showed that the structures of the three fish scale gelatins changed. Additionally, the surface hydrophobicity index of the three fish scale gelatins increased by 36.72, 31.42 and 111.67, respectively, after 1 h of phosphorylation, and the surface tension decreased by 17.27, 32.58 and 18.7 mN/m, respectively. The emulsification activity index increased by

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Burton, Zachary, and Bharat Bhushan. "Hydrophobicity, Adhesion, and Friction Properties of Nanopatterned Polymers and Scale Dependence for Micro- and Nanoelectromechanical Systems." Nano Letters 5, no. 8 (2005): 1607–13. http://dx.doi.org/10.1021/nl050861b.

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