Article
Chemistry, Analytical
Wei Yin Lim, Choon-Hian Goh, Keenan Zhihong Yap, Narayanan Ramakrishnan
Summary: Irregularities in breathing patterns can be predicted with the help of breath monitor sensors that detect variations in humidity during inhalation and exhalation. Graphene-based RH sensors show excellent sensitivity, stability, and repeatability. By embedding the sensor into a face mask and interfacing it with a microcontroller, different breathing situations can be measured, making it a promising wearable and disposable healthcare technology.
Article
Engineering, Electrical & Electronic
Amardeep Singh Dhillon, Ajay Achath Mohanan
Summary: This paper proposes a new multilayered substrate structure for fabricating flexible Lamb wave sensors. The structure leverages the characteristics of SU-8 polymer film to reduce the damping of Lamb waves and can be patterned using low-cost UV-contact lithography. Experimental results demonstrate that the structure can launch Lamb wave modes at larger device wavelengths and exhibits good performance in humidity sensing applications.
IEEE SENSORS JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Zhonggang Zhang, Binghe Ma, Tao Ye, Wei Gao, Guangyao Pei, Jian Luo, Jinjun Deng, Weizheng Yuan
Summary: Inspired by springtails, we proposed a simple and practical manufacturing method for flexible superomniphobic dual-T microstructure surfaces. The surfaces exhibited excellent liquid-repellent properties and demonstrated remarkable robustness and recoverability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Xu Ni, Jing Luo, Ren Liu, Xiaoya Liu
Summary: This work presents a one-step approach using UV-curing technology to fabricate humidity-sensing coatings based on polyelectrolytes. By incorporating hydrophobic monomers and crosslinking agents, the coatings demonstrate improved response, stability, and repeatability, leading to a wide detection range and short response time.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Paper & Wood
Debasis Maity, Krishnamoorthy Rajavel, Ramasamy Thangavelu Rajendra Kumar
Summary: The study introduced a MWCNT enhanced textile wearable device for measuring human body motion changes and environmental humidity, showing potential for multifunctional sensing applications.
Article
Materials Science, Ceramics
Liudmila Khoroshko, Viktor Borisenko, Petr Baltrukovich, Suvonkul Nurmonov, Olim Ruzimuradov
Summary: Photocatalytically active TiO2 + CuO+Cu2O composite structures have been fabricated on copper foil and pre-oxidized copper grids using a novel one-step sol-gel synthesis. The composites consist of a granular oxide surface layer penetrated by CuO whiskers. X-ray diffraction analysis confirmed the presence of copper oxides (CuO and Cu2O) and titanium dioxide (TiO2) in the anatase phase. The composites displayed high photocatalytic activity for Rhodamine B in aqueous solution under UV-activation. This one-step fabrication method shows promise for improving water and air purification systems.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Kamila Akhmetova, Batukhan Tatykayev, Sandugash Kalybekkyzy, Fail Sultanov, Zhumabay Bakenov, Almagul Mentbayeva
Summary: A simple and effective strategy was proposed to solve the hot issues of existing flexible batteries by providing a uniform and stable framework for bendable, portable, and semi-transparent all-in-one lithium-ion batteries (LIBs). The fabrication of the all-in-one flexible LIB involved electrospinning of a PVDF-HFP-based precursor solution loaded with active materials, including nanostructured graphite and LiFePO4 as anode and cathode active materials, respectively. The addition of an optimized amount of CNT in the electrospinning solutions enhanced the electronic conductivity of the fibrous electrodes, resulting in stable electrochemical performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Sakeena Masrat, Rafiq Ahmad, Umesh T. Nakate, Akil Ahmad, Mohammed B. Alshammari, Kiesar Sideeq Bhat, Prabhash Mishra, Byeong-il Lee
Summary: In this study, an ultrathin nanosheet-like CuO nanostructure was synthesized using a one-step low-temperature solution process and used to develop an electrochemical non-enzymatic sensor for hydrazine detection. The sensor showed good sensitivity and a wide detection range, and had advantages such as low cost, stability, reproducibility, and selectivity.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Electrochemistry
Daming Sun, Masaharu Nakayama, Haisen Qin, Dan Liu, Zhifan Wang, Ziyi Zhang, Bo Zhou, Pingping Liu
Summary: Copper oxide films with different morphologies were synthesized by a simple and fast chemical method. The nanowire structure exhibited the best electrochemical performance and good stability.
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2023)
Article
Chemistry, Analytical
Zeris Aksu, Cengiz Han Sahin, Murat Alanyalioglu
Summary: This study aims to produce Janus GO/rGO paper by one-step electrochemical reduction of GO paper and optimize the quality parameters. The experiments show that Janus GO/rGO paper exhibits circular behavior and there is an exponential relationship between the circularly-oriented bending angle of the actuator and relative humidity.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Multidisciplinary Sciences
Satoko Honda, Hyuga Hara, Takayuki Arie, Seiji Akita, Kuniharu Takei
Summary: This study develops a flexible humidity sensor that can be attached to a mask for wireless home-use respiration monitoring. The sensor has high sensitivity and stability, and can continuously track respiratory conditions during sleep, aiding in the identification of symptoms of sleep apnea.
Article
Nanoscience & Nanotechnology
Qiang Li, Yuting Li, Pengzi Xu, Xiuzhi He, Rongqi Wang, Xiaoqin Zhou, Qiang Liu
Summary: In this study, flexible structures resembling micro-nano pillars, setae, and cilia found on natural organism surfaces were created using a novel fabricating strategy to investigate the phenomenon and mechanism of droplet formation. By adjusting the mold pattern, different micro/nano morphologies could be easily obtained on a smooth film surface. The film, with its uniformly distributed hierarchical micro-nano structure arrays, demonstrated superhydrophobicity, low-adhesion, self-cleaning, anti-icing, and deicing characteristics, making it suitable for various engineering applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hongjie Tan, Zuzhen Huang, Yun Wang, Lexian Sang, Lichang Wang, Fuchao Jia, Fazhe Sun, Xiaomei Wang
Summary: Sea urchin-like hierarchical p-CuO/n-ZnO heterostructures were fabricated through a one-step chemical bath deposition method, and their morphologies and crystal structures were characterized. The influence of CuO content on the photocatalytic performance was also evaluated.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yuting Wang, Tianqi Wang, Wenyuan Pei, Feng Li, Ying Yang, Hui Yu, Xiangting Dong
Summary: This study presents a new strategy to construct TiO2 @POMs@ alpha-Fe2O3 one-dimensional tandem heterojunctions materials through one-step coaxial electrospinning. Three series of TiO2 @POMs@ alpha-Fe2O3 core-middle-shell nanoribbons with different Keggin-type POMs were synthesized. Gas sensing performances of the nanoribbons were investigated, showing significantly improved sensitivity and selectivity to acetone. The enhancement can be attributed to the addition of POMs electron acceptors, the construction of tandem heterojunctions, and the one-dimensional nano-structure.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Zhenyu Wei, Jianqiu Huang, Wenhao Chen, Qingan Huang
Summary: This study investigated flexible capacitive humidity sensors fabricated on porous PTFE substrates, utilizing a graphene oxide sensing material. An ethanol soak process was developed to enhance sensor yield, resulting in sensors with high sensitivity, low hysteresis, and fast response/recovery time.
Article
Chemistry, Physical
Asako Taniguchi, Yuta Kubota, Nobuhiro Matsushita, Kento Ishii, Thi Kim Ngan Nguyen, Tetsuo Uchikoshi, Yoshikazu Suzuki
Summary: The sequenced-SILAR method was developed for the fabrication of Ni(OH)(2)/FeOOH heterostructures, allowing for control over layer thickness and stacking order for oxygen evolution reaction. This method produced dense heterojunctions with overpotentials for OER, demonstrating the importance of carefully designed deposition conditions.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shukoh Yoshimura, Hirofumi Kawamura, Hirofumi Hidai, Souta Matsusaka, Akira Chiba, Tetsuo Kishi, Noboru Morita
Summary: This study reports the laser manipulation of metal spheres in glass, demonstrating the formation of stainless steel-silver core-shell spheres. The technique uses laser-induced migration in silver-doped glass to form core-shell-structured metal spheres and eliminate the silver contained in the glass along the migration trajectory of the spheres.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Shukoh Yoshimura, Hirofumi Hidai, Souta Matsusaka, Akira Chiba, Tetsuo Kishi, Noboru Morita
Summary: This paper explores the manipulation of metal spheres in glass to control the optical properties, specifically in the formation of optical waveguide materials. The authors demonstrate the migration of nickel spheres in glass ceramics, dedoping phosphorus and tin while incorporating nickel. The mechanisms of dedoping and incorporation are presented.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Asako Taniguchi, Kento Ishii, Thi Kim Ngan Nguyen, Tetsuo Uchikoshi, Yuta Kubota, Nobuhiro Matsushita, Yoshikazu Suzuki
Summary: Enhanced catalytic activity for the oxygen evolution reaction has been found in Ni/Fe (oxy)hydroxide heterostructures. However, the material design in this system is not yet established due to its structural and morphological complexities. In this study, strong synergetic coupling effects were achieved by fabricating a simple Ni (OH)(2)/FeOOH bilayer structure through a two-step electrodeposition method. Optimizing the deposition duration to ensure full coverage of the Ni(OH)(2) thin layer on the FeOOH nanomesh resulted in a low overpotential of 213 mV at 10 mA cm(-2) and high catalytic stability of 97% after 12 hours of operation.
Article
Electrochemistry
Hwai En Lin, Michihiko Uemura, Yuta Kubota, Yuta Katayanagi, Tetsuo Kishi, Takanori Kiguchi, Tomoaki Watanabe, Tetsuji Yano, Nobuhiro Matsushita
Summary: The effects of different heat-treated conditions on the material and electrochemical characteristics of Cu2O-alpha Fe2O3 composite film were investigated. The heat treatment did not significantly affect the morphology but influenced the grain size and crystal phase of the materials. By adjusting the oxygen content, the energy storage mechanism of the composite electrode could be modified and improved performance was achieved with the FC-A electrode.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Physics, Applied
Ryosuke Nitta, Yuta Kubota, Ayaka Endo, Hwai-En Lin, Tetsuo Kishi, Suguru Kitani, Hitoshi Kawaji, Nobuhiro Matsushita
Summary: The research shows that a transparent zinc oxide film can be deposited at a low temperature using the spin-spray method, and ultraviolet light irradiation can significantly improve the film's resistivity. The specific mechanism involves the decomposition of water molecules in the lattice by UV light, resulting in the generation of a series of hydrogen donors, providing new theoretical support for the photocatalytic properties of zinc oxide films.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Hung-Bin Lee, Hung-Hua Sheu, Jia-Sian Jian, Sheng-Yueh Chang, Chien-Hsien Yen, Hwai-En Lin
Summary: Magnesium alloys have received extensive attention due to their low density, high strength-to-weight ratio, and excellent mechanical properties. However, they suffer from poor corrosion and wear resistance. To address these issues, a multilayer protective coating was designed on the surface of an AZ31 magnesium alloy. The coating consisted of an oxide layer prepared by micro-arc oxidation (MAO), a sputtered Ag intermedium layer, and a Ni-based anti-corrosion coating deposited by supercritical CO2 assisted electroless deposition (SC-EL-Ni). The Ag/MAO interlayer improved the adhesion between the Ni coating and Mg substrate, while the SC-EL-Ni layer effectively prevented corrosion.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Gozden Torun, Tetsuo Kishi, Diego Pugliese, Daniel Milanese, Yves Bellouard
Summary: This article discusses the formation of elemental trigonal tellurium (t-Te) on tellurite glass surfaces exposed to femtosecond laser pulses. The underlying elemental crystallization phenomenon is investigated by altering laser parameters in common tellurite glass compositions under various ambient conditions. The research reveals the complex phase transformation and potential to fabricate functional transparent electronic micro/nanodevices.
ADVANCED MATERIALS
(2023)
Article
Engineering, Mechanical
Hung-Bin Lee, Yuan-Huan Hong, Hung-Hua Sheu, Ruey-Chang Hsiao, Wen-Ken Li, Hwai-En Lin
Summary: The HVOF spray process was used to create nickel-based alloy coatings with different chromium contents (NC-A, 7.15 wt%; NC-B, 16.98 wt%). The tribocorrosion test revealed a mechanical plowing effect on the coatings at low applied potential (< +100 mVSCE), and intensified corrosion effect exacerbated the wear behavior of the coatings at higher potential (>+300 mVSCE). Quantitative analyses showed that the total weight loss (Wtotal) of the coatings significantly increased with growing potential loading, and the synergic effects between corrosion and wear played a crucial role in the overall weight loss.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Yutaka Fujita, Atsuko Yamasaki, Ryosuke Nitta, Yuta Kubota, Yuta Katayanagi, Nobuhiro Matsushita
Summary: Crystalline Cu2O thin films were fabricated on seed-free glass substrates and a flexible ITO/PET substrate using the mist spin spray technique, resulting in nanoscale-thick, dense, and high-purity films.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
