27 papers · ranked by Valyu relevance
Daniel Attinger, Christophe Frankiewicz, Amy Rachel Betz, Thomas M. Schutzius + 4 more
'Thomas M. Schutzius' 'Ranjan Ganguly' 'Arindam Das' 'Chang‐Jin Kim' 'Constantine M. Megaridis'] Among numerous challenges to meet the rising global energy demand in a sustainable manner, improving phase change heat transfer has been at the forefront of engineering research for decades. The high heat transfer rates…
Katarzyna Peta, Chang-Hwan Choi
Surface wettability, defined by the contact angle, describes the ability of a liquid to spread over, absorb or adhere to a solid surface. Surface wetting analysis is important in many applications, such as lubrication, heat transfer, painting and wherever liquids interact with solid surfaces. The behavior of liquids on…
Katarzyna Peta, Pradeep Menezes
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…
Viktor Mandrolko, Guillaume Castanet, Sergii Burian, Yaroslav Grosu + 3 more
'L. Klochko' 'David Lacroix' 'Mykola Isaiev'] Understanding the physics of three-phase contact line between gas, liquid, and solid is important for numerous applications. At the macroscale, the three-phase contact line response to an external force action is often characterized by a contact angle hysteresis, and…
Ishaq Ahmad, Chi-wai Kan, Nicola Pugno
Bio-inspired engineering has been envisioned in a wide array of applications. All living bodies on Earth, including animals and plants, have well organized functional systems developed by nature. These naturally designed functional systems inspire scientists and engineers worldwide to mimic the system for practical…
Y. Q. Zu, Y. Y. Yan
In this study, the wetting behaviors of single droplet on a micro square-post patterned surface with different geometrical parameters are investigated theoretically and numerically. A theoretical model is proposed for the prediction of wetting transition from the Cassie to Wenzel regimes. In addition, due to the…
Christophe Frankiewicz, Daniel Attinger
| Title | Texture and Wettability of Metallic Lotus Leaves | | --- | --- | | Authors | C. Frankiewicz and D. Attinger | | Publication | Nanoscale | | Journal | | | Publisher | Royal Society of Chemistry | | DOI | 10.1039/C5NR04098A | | Article on | | | Journal |…
Xuemin Huang, Ian Gates
The wetting of roughened surfaces is complicated since not all of the surface of the irregular surface is wetted and thus, the three-phase contact line for the liquid drop is a complex, three-dimensional line that varies according to the dimensions of the roughness and its spatial heterogeneity. This can cause the…
Chenhao Sun, James E. McClure, Steffen Berg, Peyman Mostaghimi + 1 more
'Ryan T. Armstrong'] Emerging energy-related technologies deal with multiscale hierarchical structures, intricate surface morphology, non-axisymmetric interfaces, and complex contact lines where wetting is difficult to quantify with classical methods. We hypothesis that a universal description of wetting on multiscale…
David Labonte, Adam Robinson, Ulrike Bauer, Walter Federle
Nepenthes pitcher plants capture prey with leaves specialised as pitfall traps. Insects are trapped when they ‘aquaplane’ on the pitcher rim (peristome), a surface structured with macroscopic and microscopic radial ridges. What is the functional significance of this hierarchical surface topography? Here, we use insect…
Samih Haj Ibrahim, Tomasz Wejrzanowski, Bartłomiej Przybyszewski, Rafał Kozera + 3 more
'Rafał Kozera' 'Xabier García-Casas' 'Angel Barranco' 'Ana Paula Piedade'] Within these studies, the effect of surface topography for hydrophobic coatings was studied both numerically and experimentally. Chemically modified polyurethane coating was patterned by application of a laser beam. A set of patterns with…
Greg D. Learn, Emerson J. Lai, Horst A. von Recum
Low surface energy substrates, which include many polymers in medicine/industry, present challenges toward achieving uniform, adherent, durable coatings, thus limiting intended coating function. Examples include hydrophobic polymers such as polypropylene, polyethylene, polytetrafluoroethylene, and polydimethylsiloxane.…
Hang Zhang, Sankaran Sundaresan, Michael Webb
The wettability of a polymer surface--related to its hydrophobicity or tendency to repel water- can be crucial for determining its utility, such as for a coating or a purification membrane. While wettability is commonly associated with the macroscopic measurement of a contact angle between surface, water, and air, the…
Authors not listed
We explore how walls can be introduced into chemically-specific dissipative particle dynamics (DPD) models such that the surface energies can be chosen to obtain a desired contact angle on a given substrate, for example for an oil/water interface. We certify the methodology for determining the surface energy, which can…
Eric M. DuBois, Kate E. Herrema, Matthew G. Simkulet, Laboni F. Hassan + 3 more
Biomaterial coatings and films can prevent premature failure and enhance performance of chronically implanted medical devices. However, current hydrophilic polymer coatings and films have significant drawbacks, including swelling and delamination. To address these issues, we modified hydroxyethyl cellulose with…
Yunlong Guo, John Canning, Zenon Chaczko
The utilisation of plants directly as quantifiable natural sensors is proposed. A case study measuring surface wettability of Aucuba japonica, or Japanese Laurel, plants using a novel smartphone field interrogator is demonstrated. This plant has been naturalised globally from Asia. Top-down contact angle measurements…
Haohao Gu, Hao Wang
Wetting phenomena widely exist in both production and fundamental scientific researches. With a solid substrate exposed to open environment, it is inevitably covered by liquid film or droplets. As Danniel Bonn et al. reviewed in 2009, wetting phenomena are a playground where chemistry, physics and engineering…
Soeren Kaps, Rainer Adelung, M. Scharnberg, Franz Faupel + 2 more
'Srdjan Milenković' 'Achim Walter Hassel'] The characterization of the wetting on superhydrophobic surfaces is rather complex. Usual contact angle experiments are difficult to perform and the lateral movement of droplets as well as the pinning at point defects on the surface can disturb the measurements. Even if…
Di Sun, Karl F. Böhringer
This review focuses on self-cleaning surfaces, from passive bio-inspired surface modification including superhydrophobic, superomniphobic, and superhydrophilic surfaces, to active micro-electro-mechanical systems (MEMS) and digital microfluidic systems. We describe models and designs for nature-inspired self-cleaning…
Authors not listed
The distribution of fluids in the pore space significantly affects the borehole electrical measurements such as resistivity logs, multiphase fluid flow and hydrocarbon recovery. Wettability is therefore an important factor impacting the water production and low resistivity pays in organic-rich mudrocks. Development of…
Kobi Talma, Nathan Bossa, Evan Hankinson, Lijia Gao + 2 more
Biofilms in the built environment (BE) can harbor pathogens and have been linked with negative health outcomes, particularly in hospital environments. The formation of biofilms requires bacterial cell attachment on surfaces, such as hospital plumbing, which can have varying properties, including roughness, wettability…
Shangjie Ge-Zhang, Taoyang Cai, Hong Yang, Yuyang Ding + 1 more
Nature is the source of human design inspiration. In order to adapt to the environment better, creatures in nature have formed various morphological structures during billions of years of evolution, among which the superhydrophobic characteristics of some animal and plant surface structures have attracted wide…
Jianhui Zhang, Xiaosheng Chen, Zhenzhen Gui, Zhenlin Chen + 6 more
'Mingdong Ma' 'Yuxuan Huo' 'Weirong Zhang' 'Fan Zhang' 'Xiaosi Zhou' 'Xi Huang'] For over 200 years, wettability has made significant contributions to understanding the properties of objects, advancing technological progress1 . Theoretical model of the contact angle2 (CA) for evaluating wettability has constantly been…
Daiki Ida, Nao Takahashi, Yuki Terauchi, Takumi Tanaka + 6 more
Hydrophobins are low-molecular-weight biosurfactant proteins that coat the cell surface of filamentous fungi, making it hydrophobic and supporting morphogenesis. On conidia, hydrophobins self-assemble to form rod-shaped multimeric structures known as rodlets. Previously, we reported that hydrophobin RolA from the…
Zixuan Wei, Joshua Elliott, Athanasios Papaderakis, Robert Dryfe + 1 more
Deciphering the mechanisms of charge storage on carbon-based materials is pivotal for the development of next generation electrochemical energy storage systems. Graphene, the building block of graphitic electrodes, is an ideal model for probing such processes on a fundamental level. Herein, we investigate the…
Swapnil Sambhaji Bamane, Krishan Kanhaiya, Hendrik Heinz, Gregory Odegard
Boron nitride nanotubes (BNNTs) are a very promising reinforcement for future high-performance composites because of their excellent thermo-mechanical properties. To take full advantage of BNNTs in composite materials, it is necessary to have a comprehensive understanding of the wetting characteristics of various…
Silambarasan Anbumani, Aldeliane M. da Silva, Andrei Alaferdov, Marcos V. Puydinger dos Santos + 6 more
SU-8 polymer is an excellent platform for diverse applications due to its high aspect ratio of micro/nanostructures fabrication and exceptional optical, chemical, and biocompatible properties. Although SU-8 has been often investigated for a variety of biological applications, how its surface properties influence both…