Article
Chemistry, Physical
Eunsang Lee, Florian Mueller-Plathe
Summary: The Cassie-Baxter state of wetting can explain the behavior of water droplets on superhydrophobic rough surfaces, including the equilibrium contact angle and the slippery dynamics. This study provides a deeper understanding of the contact line dynamics on rough surfaces using the molecular kinetic theory. The findings demonstrate the importance of additional friction forces and shed light on the origin of contact angle hysteresis.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yu Tang, Xiaolong Yang, Yimin Li, Yao Lu, Di Zhu
Summary: The study designed micropapillaes overlaid with nanograss to enhance dropwise condensation efficiency, delay flooding, and increase heat transfer coefficient. Furthermore, the micropapillaes acted as forts protecting the nanograss, improving the surface mechanical and chemical robustness.
Article
Chemistry, Physical
Xin Sui, Yubo Wang, Yongyang Sun, Wenyan Liang, Yiqing Xue, Alex Osei Bonsu
Summary: A hierarchical nanostructured model for superhydrophobicity was established to describe solid surface properties, with a focus on thermodynamic analysis of wetting states. Simulation results demonstrated a close relationship between wetting state transitions and changes in nano-cylinder height and base spacing.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Anirudh Venugopal, Recep Kas, Kayeu Hau, Wilson A. Smith
Summary: By using operando photoelectrochemical attenuated total reflection Fourier transform infrared (PEC-ATR-FTIR) spectroscopy, the study on the metal oxide/electrolyte interface, it was found that preferential dissolution of vanadium occurs from the BiVO4/water interface under open-circuit conditions, while both bismuth and vanadium dissolution occurs when an anodic potential is applied under illumination.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biotechnology & Applied Microbiology
Lansheng Zhang, Paul C. Uzoma, Xiaoyang Chu, Oleksiy V. Penkov, Huan Hu
Summary: A scalable and cost-effective fabrication approach for constructing bio-inspired micro/nanostructured surfaces is reported. The method involves silicon microstructure etching, nanowires deposition, and fluorocarbon thin film deposition, resulting in hierarchical micro/nanostructured surfaces with excellent anti-icing properties and promising applications.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Monika A. Koperska, Jacek Bagniuk, Malgorzata M. Zaitz-Olsza, Katarzyna Gassowska, Dominika Pawcenis, Maciej Sitarz, Ewa Bulska, Joanna Profic-Paczkowska
Summary: This study investigates the degradation mechanism of silk fibroin through FTIR analysis. The results show that peptide bond oxidation occurs in the early stages of aging, regardless of conditions. Water introduction leads to significant changes in the hydrolysis of silk fibroin-based materials. The overall degradation level is affected by oxidation and hydrolysis, with decreased crystallinity and increased hydrolysis and oxidation observed in historical silk banners.
APPLIED SCIENCES-BASEL
(2023)
Article
Nanoscience & Nanotechnology
Wang Tian, Chao Li, Kong Liu, Fangyuan Ma, Kaiwen Chu, Xuan Tang, Zhijie Wang, Shizhong Yue, Shengchun Qu
Summary: A superhydrophobic surface with micro/nanoscale structures was designed by employing facile and low-cost demolding and initiated chemical vapor deposition (iCVD) processes. The achieved micro/nanostructured superhydrophobic surface exhibited a maximum static contact angle of about 170 degrees, a roll-off angle and contact angle hysteresis below 1 degree, ultralow solid/liquid adhesion for water droplets, and maintained excellent superhydrophobicity even after exposure to strongly corrosive substances for 60 hours. This reasonably-designed method provides valuable guidelines for the manufacture of transferable superhydrophobic surfaces and enables potential applications in optoelectronic devices and self-cleaning materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
Hengjie Liu, Zeming Qi, Li Song
Summary: Electrocatalysis reactions are promising ways to solve severe energy and environmental problems, but the limited understanding of the dynamic process hinders rational design of electrocatalysts. In situ electrochemical infrared spectroscopy (in situ EIRS) is a powerful tool to gain deep insights into dynamic electrocatalytic reactions at the molecular level, showing broad prospects in the study of electrocatalytic dynamic processes.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
E. P. Kovalev, A. S. Shalygin, S. A. Prikhod'ko, N. Yu Adonin, O. N. Martyanov
Summary: In this study, the absorption of acetylene by ionic liquids (ILs) was investigated using in situ ATR-FTIR spectroscopy. The analysis revealed a correlation between the spectral changes of absorbed acetylene and the nature of ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Yijie Liu, Yujun Guo, Xueqin Zhang, Guoqiang Gao, Chaoqun Shi, Guizao Huang, Pengli Li, Qi Kang, Xingyi Huang, Guangning Wu
Summary: This study proposes a method to achieve self-cleaning at low humidity. By electro-aggregating and electric field driving, pollutants are aggregated and cleaned on a large scale. The cleaning efficiency of this method is higher than water droplet roll-off and does not produce pollution bands. Simulation results match experimental results, and this method realizes the self-cleaning of superhydrophobic nanostructured surfaces in low humidity for the first time.
Article
Materials Science, Coatings & Films
Vivek Pachchigar, Mukesh Ranjan, K. P. Sooraj, Sebin Augustine, Devilal Kumawat, Kumudni Tahiliani, Subroto Mukherjee
Summary: The bouncing dynamics of impacting water droplets on superhydrophobic PTFE surfaces produced by low energy ion beams were studied for self-cleaning applications. Parameters such as spreading factor, contact time, time of flight, and number of bounces were used to analyze the bouncing behavior. The results showed that the droplets on 800 eV irradiated surfaces bounced as many as 14 times.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
H. Lee, D. Lee, J. M. Seo
Summary: This study collected and analyzed paint from an actual site of ship collision, comparing paint traces of the damaged ship and the ship suspected to be responsible for the collision through various chemical analysis methods. The ship responsible for the collision could be identified by performing a comparative analysis of the extracted paint.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Kaikai Li, Yingxi Xie, Biao Tang, Huanwen Ding, Xiaokang Mei, Min Yu, Chunbao Li, Longsheng Lu
Summary: By constructing surface microstructures and improving their hydrophobicity, severe adhesion of biological fluids on surgical electrodes can be effectively reduced. Inspired by purple orchid leaves with self-cleaning properties, the dynamic behavior of water and biological droplets on superhydrophobic microstructured surfaces (SMSs) heated over 100°C was studied. The SMSs with Cassie-Baxter state showed a pseudo-Leidenfrost effect for water droplets, and the dynamic evolution mechanism of plasma droplets on heated surfaces was proposed. The findings contribute to understanding the anti-adhesion mechanism of surgical electrodes at the microscopic level.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yongyang Sun, Yubo Wang, Wenyan Liang, Liang He, Fangxin Wang, Dongyu Zhu, Huanyu Zhao
Summary: This study prepares superhydrophobic surfaces with heating capability and excellent water-repellent, anti-icing, and icephobic performances at low temperatures. The triple icephobicity can be activated even at low temperatures by applying voltage. The heating property of the superhydrophobic surface can release the mechanical interlocking force between the surface and ice.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Shaheed Ullah, Michael L. Mckee, Alexander Samokhvalov
Summary: The study reveals the molecular-level interactions between advanced nanomaterial and volatile organic sulfur compounds. The material shows high adsorption capacity for diethyl sulfide and can be easily regenerated by heating. This research is important for environmental remediation and understanding of adsorption mechanisms.
Article
Electrochemistry
Ehsan Rahimi, Ruben Offoiach, Kitty Baert, Herman Terryn, Lorenzo Fedrizzi, Maria Lekka
Summary: Protein adsorption and its interactions with metallic biomaterials have a significant impact on corrosion/biodegradation and biocompatibility. This study used SKPFM to investigate the effects of BSA concentration and overpotential on the corrosion behavior of CoCrMo alloy. The results showed that the alloy was more corrosion resistant in higher BSA concentration and overpotential conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
D. Yakimchuk, U. Prigodich, S. E. Demyanov, J. Ustarroz, H. Terryn, K. Baert, S. A. Khubezhov, D. Tishkevich, A. Trukhanov, V Sivakov, E. Yu Kaniukov
Summary: Template synthesis is a method for obtaining nanostructures with predetermined shapes and sizes. This study successfully created silver nanostructures with complex geometry by changing only the pore volume of the template without altering other chemical kinetic conditions, and the growth mechanism of these nanostructures was examined and discussed in detail.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Analytical
Xiaoyun Lei, Ting Huang, Xiaoping Wu, Debby Mangelings, Ann Van Eeckhaut, Jana Bongaerts, Herman Terryn, Yvan Vander Heyden
Summary: In this study, a novel molecularly imprinted monolithic column was successfully synthesized for the selective capillary microextraction of neumtensin and neummedin N. The column exhibited excellent adsorption capacity and selectivity towards the target peptides, and the proposed method proved to be effective for the specific analysis of NT and NmN in human plasma samples.
Article
Electrochemistry
A. C. Bouali, M. Serdechnova, K. A. Yasakau, A. Lutz, G. Wiese, H. Terryn, M. G. S. Ferreira, M. L. Zheludkevich
Summary: Direct growth of ZnAl layered double hydroxide on AA2024 is a fast reaction with an inhomogeneous film thickness. The flakes are larger and denser at the periphery of Cu-rich intermetallic. Trenching process during dealloying leads to defects and may weaken the performance of the layered double hydroxide conversion coating.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Mariana Paz Martinez-Viademonte, Shoshan T. Abrahami, Meisam D. Havigh, Kristof Marcoen, Theodor Hack, Malte Burchardt, Herman Terryn
Summary: The anodising process parameters control the morphology, chemical composition, and corrosion resistance of the resulting anodic oxide film. Adding tartaric acid to a sulfuric acid electrolyte reduces the porosity of the oxide film, while anodising at elevated temperatures increases oxide dissolution, resulting in wider pores and rougher surfaces. The corrosion protection performance of the anodic oxide films combined with a corrosion-inhibitor loaded organic coating depends on the adhesion-enhancing morphological features formed at the oxide/coating interface.
Article
Engineering, Electrical & Electronic
Zhu Chen, Lilei Hu, Li Zhang, Jingxuan Shen, Chang Chen
Summary: In this study, a novel ultrafast electron detector with field-effect transistor (FET) enhanced in situ signal amplification is proposed and verified. Through simulation, the detector shows a high gain and ultrafast response, with a cutoff frequency of over 500 MHz. The proposed nonuniform gating oxide design and nonlinear doping profile of the electron absorption layer also contribute to enhancing the detector's performance.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Analytical
Zhuo Yang, Jiali Zhang, Xin Tong, Wenbing Li, Lijuan Liang, Bo Liu, Chang Chen
Summary: Polymerase chain reaction (PCR) technology is widely used in medical diagnoses, environmental monitoring, food hygiene, and safety. However, there is a lack of systematic analysis for an ultra-fast PCR device with a compact structure and fast temperature changes for on-site detection. To address the issues of low heating efficiency and non-portability of current PCR devices, a miniaturized PCR system based on a microfluidic chip has been proposed. The main objective of this paper is to explore the feasibility of using a heat resistor for fast heating and air cooling technology for rapid cooling, and to investigate the effects of different pattern designs and thicknesses of the resistor on heating rates and temperature uniformity. Additionally, the thermal properties of PCR chips made of various materials are analyzed. The research results provide valuable reference for the design of heating and cooling modules used in the ultra-fast PCR protocol.
Article
Materials Science, Multidisciplinary
Mingtao Wang, Liwei Wang, Wendi Yang, Yuxi Liu, Herman Terryn, Zhongyu Cui
Summary: The effect of bisulfite (HSO3-) on the stress corrosion cracking (SCC) behavior of 7050-T7451 aluminum alloy in the presence of Cl- in a thin electrolyte layer environment is investigated. The addition of HSO3- inhibits corrosion initiation but promotes corrosion propagation and hydrogen uptake. Quantitative calculation demonstrates that HSO3- significantly facilitates the synergistic effect among stress, corrosion, and hydrogen, causing a shift in the controlling step of SCC from corrosion-induced hydrogen to mechanical-electrochemical-hydrogen interactions. The buffer effect of HSO3- plays a dominant role in the HSO3--induced acceleration of SCC degradation.
Article
Biochemistry & Molecular Biology
Ruihua Ding, Liying Liu, Jiali Zhang, Pengxiao Lv, Lin Zhou, Tinglu Zhang, Shenwei Li, Ran Zhao, Zhuo Yang, Peng Xiong, Hu Chen, Wei Wang, Hualiang Wang, Zhengan Tian, Bo Liu, Chang Chen
Summary: Despite the challenges in accurate nucleic acid quantification, we have developed a method that combines the strengths of qPCR and dPCR using silicon-based microfluidic chips. This method demonstrates high quantification accuracy across a wide concentration range and enables the identification of individual template molecules. With this approach, we can remove nonspecific amplification and greatly improve quantification accuracy, as shown in our improved detection of COVID in patient samples using a sectioning algorithm.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Chemistry, Physical
Xin Tong, Zhuo Yang, Jiali Zhang, Wenbing Li, Bo Liu, Chang Chen
Summary: This study reports a simple angle-insensitive green reflector with a multilayer dielectric thin film structure, which exhibits predicted chromatic coordinates based on the CIE 1931 standard. The reflector is fabricated by growing a SiN/SiO2 multilayer thin film stack using an inductively coupled plasma chemical vapor deposition system at a low temperature of 80 degrees C. The green reflector achieves a maximum reflectivity of 73% at 561 nm with a FWHM of 87 nm in the visible wavelength range, contributing significantly to its color appearance. Angle-resolved measurements indicate a slight blue shift of the reflectance spectrum with increasing incident angle, allowing the green color to be maintained.
Article
Chemistry, Analytical
Jiali Zhang, Zhuo Yang, Liying Liu, Tinglu Zhang, Lilei Hu, Chunrui Hu, Hu Chen, Ruihua Ding, Bo Liu, Chang Chen
Summary: This paper introduces an ultrafast polymerase chain reaction (PCR) equipment designed for virus detection. The equipment consists of a silicon-based PCR chip, a thermocycling module, an optical detection module, and a control module. It has the advantages of rapid and accurate detection efficiency, making it suitable for large-scale epidemic prevention and control.
Article
Optics
Nian Yu, Lili Zhang, Xianbiao Zhang, Chunrui Hu, Chang Chen
Summary: In recent years, the utilization of spatially offset Raman spectroscopy (SORS) has significantly improved in its non-invasive ability to analyze layered turbid materials. However, there is a lack of detailed studies on SORS for materials with different optical properties. This study aimed to fill this gap by constructing a simple bilayer model and investigating the SORS performance to probe materials with distinct optical properties. The study demonstrated the potential of SORS technology for non-invasive detection of subcutaneous components and provided a comprehensive understanding of SORS characteristics.
Article
Nanoscience & Nanotechnology
Renjie Zhang, Xianbiao Zhang, Chunrui Hu, Chang Chen
Summary: In this study, the characteristics of SORS affected by the optical properties of materials were investigated using numerical simulation. The key characteristics of SORS were systematically analyzed, providing important implications for the development and application of SORS.
Article
Materials Science, Multidisciplinary
Bo Wang, Zhuo Deng, Yanyan Fu, Sarp Kerman, Wei Xu, Huizi Li, Huan Liu, Qingguo He, Chang Chen, Jiangong Cheng
Summary: Organic thin-film fluorescent sensor is an efficient tool for detecting trace chemical vapor, such as illegal drugs, explosives, nerve agents, and other dangerous substances due to its high sensitivity and quick response. However, most of the current device structures rely on space optics, which makes it challenging to integrate with CMOS technology, and hence difficult for achieving chip-level implementation.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Materials Science, Multidisciplinary
Leonardo Bertolucci Coelho, Dawei Zhang, Yves Van Ingelgem, Denis Steckelmacher, Ann Nowe, Herman Terryn
Summary: This work provides a data-oriented overview of machine learning applied to predicting electrochemical corrosion, creating a database to guide experts and developers and discussing potential research gaps and recommendations.
NPJ MATERIALS DEGRADATION
(2022)