Article
Chemistry, Physical
Baktiyar Soltabayev, Ahmad Ajjaq, Gani Yergaliuly, Yerkebulan Kadyrov, Amanzhol Turlybekuly, Selim Acar, Almagul Mentbayeva
Summary: This study aims to explore the advantages of titanium doping and magnetron sputtering over chemical-based methods on the surficial and electrical characteristics of ZnO films, specifically on their gas sensing performance. Pure ZnO nanofilm and Ti-doped ZnO nanofilms with different Ti contents were synthesized using RF magnetron sputtering. The nanofilms exhibited a pure hexagonal wurtzite structure, with relatively flat and homogenous surfaces and a clear distribution of nanoparticles in the Ti-doped samples. The enhanced properties of the nanofilms were reflected in the gas sensor's ultimate performance, with the 1 wt% Ti content sensor showing the best gas sensing performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Sevda Saritas
Summary: Fe2-xSnxO3 structures were grown using RF-DC magnetron co-sputtering. The band gap, morphology, and structural features of the film were studied, revealing their influence on the gas sensor response.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Yu Zhang, Jie Chen, Ben-shuang Sun, Shuai Liu, Zhi-jun Wang, Shu-han Liu, Yong-chun Shu, Ji-lin He
Summary: In this study, IGZO films were deposited using RF magnetron sputtering technology with a high-purity In2Ga2ZnO7 ceramic target. The films exhibited a uniform and smooth surface at room temperature with good thermal stability. However, as the temperature increased, the surface roughness increased, resulting in decreased performance.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Chemistry, Analytical
Ozlem Barin, Ahmad Ajjaq, Ali Orkun Cagirtekin, Irmak Karaduman Er, Memet Ali Yildirim, Aytunc Ates, Selim Acar
Summary: This study proposes an effective approach to develop and tune hydrogen gas sensors by studying the effect of nucleation layers and chemical stabilizing agents. The results show that the synthesis methods and coating techniques significantly affect the morphology and gas sensing performance of the sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Mikayel Aleksanyan, Artak Sayunts, Gevorg Shahkhatuni, Zarine Simonyan, Hayk Kasparyan, Dusan Kopecky
Summary: In this study, a Fe2O3:ZnO sputtering target and nanograins-based sensor were developed to detect hydrogen peroxide vapor at room temperature. The synthesized sputtering target and nanostructured film were characterized using SEM, TEM, and EDX. The gas sensing behavior of the Fe2O3:ZnO sensor was investigated at different temperatures and HPV concentrations, with and without UV irradiation. The results showed that UV light improved the sensor's detection limit and response time.
Article
Chemistry, Analytical
Didier Fasquelle, Nathalie Verbrugghe, Stephanie Deputier
Summary: Tungsten trioxide thin films were deposited on silicon substrates by non-reactive RF sputtering from a WO3 target at room temperature. The morphological and microstructural properties of these films were analyzed by using atomic force microscopy and X-ray diffraction. The sensitivity and dynamic response of the gas sensors were analyzed under various concentrations of H2S, with interesting results including a good sensitivity under H2S 100 ppm and a short response time.
Article
Materials Science, Multidisciplinary
Jiahao Hu, Tao Zhang, Ying Chen, Pengcheng Xu, Dan Zheng, Xinxin Li
Summary: ZnMn2O4 nanotubes have been synthesized and utilized for CO2 detection, showing good sensing response to CO2 gas and great application potentials.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Anuj Sharma, Urvashi Varshney, Aditya Yadav, Pargam Vashishtha, Preetam Singh, Govind Gupta
Summary: This article introduces a ultra-sensitive gas sensor based on WSe2 nanorods, which can detect low concentrations (ppb level) of nitric oxide. The sensor shows high selectivity and stability, with fast response and recovery time. The device has potential applications in environmental monitoring, biomedical field, and wearable devices for real-time nitric oxide tracking.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Analytical
Wenlong Yang, Chengjiu Zhao, Bingsheng Du, Rong Wu, Xiaofang Lai, Yong He, Jikang Jian
Summary: A high-performance room temperature NO2 gas sensor based on tin selenide nanosheet arrays films has been developed, which can quickly respond to different concentrations and has high selectivity and repeatability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Qi Liu, Qiqi Sun, Chuangyu Wei, Xiyou Li, Sirong Yu, Jianfeng Li, Yanli Chen
Summary: This study demonstrates the production of a flexible n-n heterojunction film as an electrochemical identification layer for wearable gas sensors, showing good responses to several gases. The uniform and compact structure of the heterojunction films provides excellent mechanical flexibility and suppresses the penetration of gases, leading to fast recovery speed.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Chuanxin Ge, Chuanchuan Jin, Mingsong Wang, Ling Bai, Shahid Hussain, Guanjun Qiao, Eui Jung Kim, Guiwu Liu
Summary: In this study, the on-chip preparation of SnO2 nanoarrays with porous netlike structure was achieved using in-situ grown NiO nanoarrays as the template. The as-prepared SnO2 nanoarrays exhibited excellent selectivity, stability, and linear response to H2S. The nanoarrays showed higher and faster H2S response compared to the dense film counterpart due to their porous net-like microstructure. A portable sensor device based on SnO2 nanoarrays was fabricated for accurate H2S detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Qiang Li, Cheng Chen, Manzhang Xu, Yingnan Wang, Xuewen Wang, Zhiyong Zhang, Wu Zhao, Johan Stiens
Summary: The study demonstrated that the crystal structure of SiCN thin films significantly influences their blue-violet emission intensity, and annealing process can optimize the photoluminescence performance of the films. Characterization results using XRD and PL spectra showed that, under annealing at 900 degrees Celsius, SiCN samples exhibited the best crystallinity and blue-violet emission intensity.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Shuhan Liu, Jie Chen, Benshuang Sun, Zhiyuan Huai, Fudi Xiong, Jilin He
Summary: In this study, the influence of magnetron sputtering on IGZO ceramic target was investigated. The state of the target, including target grain uniformity, micro defects, C element pollution, and secondary phase, was found to significantly affect the sputtering process. These findings provide guidance for further improvement and performance enhancement of IGZO sputtering target.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Mingdi Lan, Shang Sun, Shiying Liu, Guojian Li, Zhiwei Wang, Qiang Wang
Summary: The shape of the hexagonal structure in Bi0.5Sb1.5Te3 film can be controlled through adjusting the magnetron sputtering parameters, leading to a dense layered structure that enhances the thermoelectric properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Jinkang Du, Guoqiang Yu, Huajun Zhang, Yunfa Jia, Ruixiang Chen, Chenyang Liu, Xiguang Gao, Fang Wang, Yingdong Song
Summary: The ablation characteristics of plain-woven SiC/SiC composites were studied using an oxy-acetylene flame, showing a linear decrease in ablation rate over time and the formation of porous tubular structures and micro-pits on the surface of SiC fibers.
Article
Multidisciplinary Sciences
Kee-Jeong Yang, Sammi Kim, Se-Yun Kim, Kwangseok Ahn, Dae-Ho Son, Seung-Hyun Kim, Sang-Ju Lee, Young-Ill Kim, Si-Nae Park, Shi-Joon Sung, Dae-Hwan Kim, Temujin Enkhbat, JunHo Kim, Chan-Wook Jeon, Jin-Kyu Kang
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Young-Ill Kim, Kee-Jeong Yang, Se-Yun Kim, Jin-Kyu Kang, Juran Kim, William Jo, Hyesun Yoo, JunHo Kim, Dae-Hwan Kim
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2019)
Article
Chemistry, Physical
Se-Yun Kim, Weon-Sik Chae, Yong-Jae Na, Sang-Hyub Kim, Sangwook Lee, Joon-Hyung Lee, Young-Woo Heo
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Chemistry, Physical
Se-Yun Kim, Sangwook Lee, Weon-Sik Chae, Joon-Hyung Lee, Young-Woo Heo
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Nanoscience & Nanotechnology
Pham Tien Hung, Vu Xuan Hien, Phung Dinh Hoat, Sangwook Lee, Joon-Hyung Lee, Jeong-Joo Kim, Young-Woo Heo
SCRIPTA MATERIALIA
(2019)
Article
Chemistry, Physical
Se-Yun Kim, Dae-Ho Son, Seung-Hyun Kim, Young-Ill Kim, Sammi Kim, Kwangseok Ahn, Kee-Jeong Yang, Jin-Kyu Kang, Dae-Hwan Kim
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Sanghun Hong, Se-Yun Kim, Dae-Ho Son, Seung-Hyun Kim, Young-Ill Kim, Kee-Jeong Yang, Young-Woo Heo, Jin-Kyu Kang, Dae-Hwan Kim
Article
Nanoscience & Nanotechnology
Se-Yun Kim, Seung-Hyun Kim, Dae-Ho Son, Young-Ill Kim, Sammi Kim, Shi-Joon Sung, Kee-Jeong Yang, Dae-Hwan Kim, Jin-Kyu Kang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Nanoscience & Nanotechnology
Se-Yun Kim, Seung-Hyun Kim, Dae-Ho Son, Hyesun Yoo, Seongyeon Kim, Sammi Kim, Young-Ill Kim, Si-Nae Park, Dong-Hwan Jeon, Jaebaek Lee, Hyo-Jeong Jo, Shi-Joon Sung, Dae-Kue Hwang, Kee-Jeong Yang, Dae-Hwan Kim, Jin-Kyu Kang
Summary: In this study, the effect of the stacking order of metal precursors on the formation of volume defects in CZTSSe thin-film solar cells was investigated. The mechanisms for blister and nanopore formation were proposed, providing insights for further development of volume-defect-formation suppression technology.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Seong-Uk Oh, Dokyum Kim, In-Taek Lee, Chan-Sik Choi, Jung-A Lee, Young-Woo Heo, Joon-Hyung Lee
Summary: In this study, spinel-structured Cu1.35Mn1.65O4 powder was coated onto stainless steel using electrophoretic deposition method for protective coating in solid oxide fuel cells. The coating was densified through the addition of iodine and heat treatment, resulting in improved resistance stability of the film.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Nanoscience & Nanotechnology
Ho-Chang Lee, Dokyum Kim, Jung-A Lee, Young-Woo Heo, Jeong-Joo Kim, Joon-Hyung Lee
Summary: The transfer energy of oxygen vacancy in La and Y co-doped CeO2 is investigated, and it is found that the ratio of La and Y has an effect on the lattice constant and migration energy of the oxygen vacancy.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2022)
Article
Materials Science, Ceramics
Dang-Hoang Hop, Roy Byung Kyu Chung, Young-Woo Heo, Jeong-Joo Kim, Joon-Hyung Lee
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Physical
Si-Nae Park, Se-Yun Kim, Sang-Ju Lee, Shi-Joon Sung, Kee-Jeong Yang, Jin-Kyu Kang, Dae-Hwan Kim
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Dae-Ho Son, Seung-Hyun Kim, Se-Yun Kim, Young-Ill Kim, Jun-Hyung Sim, Si-Nae Park, Dong-Hwan Jeon, Dae-Kue Hwang, Shi-Joon Sung, Jin-Kyu Kang, Kee-Jeong Yang, Dae-Hwan Kim
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Kwangseok Ahn, Se-Yun Kim, Sammi Kim, Dae-Ho Son, Seung-Hyun Kim, SeongYeon Kim, JunHo Kim, Shi-Joon Sung, Dae-Hwan Kim, Jin-Kyu Kang
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
