Article
Chemistry, Analytical
Md Ashfaque Hossain Khan, Ratan Debnath, Abhishek Motayed, Mulpuri Rao
Summary: A TiO2-coated GaN nanowire-based back-gate field-effect transistor (FET) device was designed to address the cross-sensitive nature of metal oxides, with a Si back gate and C-AlGaN gate dielectric as tunable parameters to enhance discrimination of gases. The results showed a significant increase in NO2 response with back-gate bias, while SO2 response increased insignificantly, explained by a band diagram based on density functional theory (DFT) molecular models.
Article
Nanoscience & Nanotechnology
Yu-Hang Ji, Qin Gao, An-Ping Huang, Meng-Qi Yang, Yan-Qi Liu, Xue-Li Geng, Jing-Jing Zhang, Ru-Zhi Wang, Mei Wang, Zhi-Song Xiao, Paul K. Chu
Summary: This study successfully prepared flexible devices with tunable optoelectronic properties by fabricating oxide-decorated GaN nanowire arrays on flexible graphite paper. These devices exhibit persistent photoconductivity and a convertible fast/slow decay process that can be modulated with light pulses.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Gwang Su Kim, Yumin Park, Joonchul Shin, Young Geun Song, Chong-Yun Kang
Summary: Gas phase chemical analysis for breath gas monitoring has great potential. Array-type sensors with high sensitivity and selectivity for target gases, combined with micro-heater and ceramic chip, show excellent detection performance. Sensor array decorated with metal catalysts can detect biomarkers CH3COCH3, NO2, and H2S for real-time monitoring.
Article
Chemistry, Analytical
Sheng-Xun Cai, Xian-Qiang Song, Zong-Tao Chi, Yong-Qing Fu, Zheng-Tao Fang, Sun-Ying-Yue Geng, Ya-Ru Kang, Xiao-Xu Yang, Jian-Feng Qin, Wan-Feng Xie
Summary: A Bi-doped rGO/Co3O4 nanohybrid with a flower morphology was designed and fabricated for use as a sensing layer in an ethanol sensor, showing a high p-type response and selectivity to ethanol.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Seyeon Park, Peresi Majura Bulemo, Won-Tae Koo, Jaehyun Ko, Il-Doo Kim
Summary: By utilizing solid-solution doping and catalytic metal nanoparticles, superior acetylene sensing capabilities were achieved through porous metal oxide nanofibers. The high porosity of the metal oxide nanofibers, prepared using electrospinning and sacrificial templating, was essential for high gas permeability and active sites. Ga-doped ZnO porous NFs functionalized with Pt catalysts demonstrated the highest C2H2 sensing responses with exceptional selectivity and stability against interfering gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Peng Wang, Su-Zhen Wang, Ya-Ru Kang, Zhong-Sen Sun, Xue-Dong Wang, Yu Meng, Ming-Hui Hong, Wan-Feng Xie
Summary: Gas sensors based on p-Bi2O3 and n-ZnO heterostructure show excellent response towards ethanol, wide detection range, low working temperature, and fast response time, indicating better selectivity towards ethanol compared to other organic volatile gases. The sharp interfaces of the heterostructure contribute to the superior sensing performances.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Matteo Tonezzer, Nguyen Xuan Thai, Flavia Gasperi, Nguyen Van Duy, Franco Biasioli
Summary: By using a single tin oxide nanowire as a gas sensor, the freshness of trout fish can be quickly and accurately assessed in a non-invasive manner, with the ability to measure the total bacterial count in the sample efficiently. The system can classify and estimate samples based on their freshness level and microbial concentration with high accuracy, making it a valuable tool for quality control.
Article
Physics, Applied
Eric W. W. Blanton, Timothy A. A. Prusnick, Andrew J. J. Green, Nicholas Glavin, Michael Snure
Summary: Understanding strain effects in AlGaN/GaN devices is crucial for optimizing flexible electronics systems and strain sensors. In this study, the effects of surface potential pinning on the strain-dependent carrier density of AlGaN/GaN structures were investigated. It was found that the surface potential was unpinned for bare surface samples, but more pinned for SiNx and Ni covered samples. Additionally, sub-bandgap light was shown to effectively pin the surface potential. These findings have important implications for tuning strain sensors and minimizing device variability in flexible electronics.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Analytical
P. K. Shihabudeen, Mina Yaghoobi Notash, Jaber Jahanbin Sardroodi, Ayan Roy Chaudhuri
Summary: We report the improvement of ethanol sensing characteristics of zinc oxide (ZnO) thin films by nitrogen doping. The nitrogen-doped ZnO sensor exhibits lower operating temperature, faster response time, long-term stability, improved resilience against humidity, and selectivity towards ethanol. Density functional theory calculations support the experimental observations by estimating the adsorption energies of ethanol on ZnO and nitrogen-doped ZnO surfaces. The enhanced ethanol sensing of nitrogen-doped ZnO is attributed to the facile adsorption of ethanol molecules on the modified oxide surface.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Gen Wang, Shengjiong Yang, Li Cao, Pengkang Jin, Xiangkang Zeng, Xiwang Zhang, Jing Wei
Summary: Chemiresistive gas sensors based on semiconducting metal oxides (SMOs) are widely used in various fields, but developing sensors with high selectivity and low working temperature remains a challenge. Metal-organic frameworks (MOFs) derived SMOs have shown promise due to their mesoporous structure and unique morphology. This review systematically summarizes recent developments in this area and discusses strategies for enhancing sensing performance, such as constructing novel nanostructures and combining with highly-conductive materials.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Nanoscience & Nanotechnology
Li-Yuan Zhu, Lang-Xi Ou, Li-Wen Mao, Xue-Yan Wu, Yi-Ping Liu, Hong-Liang Lu
Summary: This review focuses on the research progress and applications of noble metal-decorated semiconducting metal oxides (SMOs) in high-performance gas sensors. Different nanostructures, including nanoparticles, nanowires, nanorods, nanosheets, nanoflowers, and microspheres, are discussed. The mechanisms of sensing performance improvement caused by noble metal decoration are also summarized, along with future perspectives.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
B. Bhagat, Santosh K. Gupta, D. Mandal, Abhishek A. Gor, R. Bandyopadhyay, K. Mukherjee
Summary: This study explores the use of nickel ferrite nanoparticles as sensors for detecting organic vapors. The developed NFO sensor shows excellent performance, with good selectivity towards ethanol, low response time, and excellent repeatability.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Analytical
Matteo Tonezzer
Summary: A chemosensor composed of a single tin oxide nanowire is utilized to quickly determine the freshness of mackerel fish. The sensor can accurately differentiate fish samples of different freshness levels within seconds, showing good correlation with the total viable count.
Article
Chemistry, Multidisciplinary
Merve Taner Camci, Matthias Pauly, Christophe Lefevre, Corinne Bouillet, Mounir Maaloum, Gero Decher, David Martel
Summary: This study prepared thin deposits of aligned semiconducting titanium oxide and zinc oxide nanowires using grazing incidence spraying technique on transparent substrates. By measuring the transmittance of linearly polarized light, it was found that titanium oxide nanowires exhibit an orientation-dependent variation of the apparent optical band gap energy at room temperature (>100 meV), providing insights for the design of future optoelectronic devices.
Article
Chemistry, Analytical
Guillem Domenech-Gil, Jordi Sama, Cristian Fabrega, Isabel Gracia, Carles Cane, Sven Barth, Albert Romano-Rodriguez
Summary: We present a methodology for localized growth of nanowires on micro-hotplates that allows independent adjustment of the device's resistance and gas response. Fabrication of nanowire-containing stripes with or without gaps enables nanowires to bridge current, and we demonstrate this approach with SnO2 nanowire-based chemoresistors. The results show the capability of tailoring nanowire stripe sizes and empty areas along the sensing material, resulting in up to 500 times response increase. The absence of nucleation seeds in the gap areas restricts current flow along the nanowire bridges, enhancing surface conduction controlled by nanowire-gas interaction.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Kathleen M. McCreary, Enrique D. Cobas, Aubrey T. Hanbicki, Matthew R. Rosenberger, Hsun-Jen Chuang, Saujan Sivaram, Vladimir P. Oleshko, Berend T. Jonker
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Matthew R. Rosenberger, Hsun-Jen Chuang, Madeleine Phillips, Vladimir P. Oleshko, Kathleen M. McCreary, Saujan Sivaram, C. Stephen Hellberg, Berend T. Jonker
Article
Chemistry, Analytical
Boqun Dong, Andrei Afanasev, Rolland Johnson, Mona Zaghloul
Correction
Chemistry, Multidisciplinary
Matthew R. Rosenberger, Hsun-Jen Chuang, Madeleine Phillips, Vladimir P. Oleshko, Kathleen M. McCreary, Saujan V. Sivaram, C. Stephen Hellberg, Berend T. Jonker
Article
Materials Science, Multidisciplinary
Vladimir P. Oleshko, Eddie Chang, Chad R. Snyder, Christopher L. Soles, Saya Takeuchi, Tristan S. Kleine, Philip T. Dirlam, Jeffrey Pyun
Summary: This study investigates the enhanced cathodes for Li-S batteries with sulfur-MoS2 composites, revealing that 3D interfacial structures are critical in maintaining cathode integrity, electrocatalytic binding of polysulfides, and reducing charge transfer resistance during cycling. The research demonstrates the importance of mechanically activated defective 2H-MoS2 particulates and aggregated conducting nanocarbons in achieving the remarkable performance of extended cycle lifetimes and high reversible capacity.
MRS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Reza Karimian, Sajjad Taravati, Mansoor Dashti Ardakani, Shahrokh Ahmadi, Mona E. Zaghloul
Summary: This study introduces a nonreciprocal-beam phased-array antenna that provides power amplification in both transmission and reception states. Compared to other antenna designs, this antenna does not introduce undesired time harmonics and frequency conversion, and does not require an RF bias signal.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Chemistry, Multidisciplinary
Yuxiao Lin, Jeremy Ticey, Vladimir Oleshko, Yujie Zhu, Xinsheng Zhao, Chunsheng Wang, John Cumings, Yue Qi
Summary: A unique carbon-nanotube-encapsulated-sulfur (S@CNT) cathode material with optimum open-ring sizes on the CNT walls was designed to mitigate lithium-polysulfides shuttle in lithium-sulfur batteries. By controlling the oxidation parameters, the optimum open-ring sizes were successfully achieved, leading to improved cycling stability of the batteries.
Article
Chemistry, Physical
You Zhou, Mona Zaghloul
Summary: PVDF is a widely used piezoelectric material due to its flexibility, low cost, light weight, and biocompatibility. The material's electronic properties, such as permittivity, can be affected by crystal structure variations, which can be altered by external stress and electrical fields. This research investigates the relationship between external electrical field and the permittivity property of PVDF material, showing an increase in permittivity with sweeping voltages.
Article
Chemistry, Multidisciplinary
Hsun-Jen Chuang, Madeleine Phillips, Kathleen M. McCreary, Darshana Wickramaratne, Matthew R. Rosenberger, Vladimir P. Oleshko, Nicholas Proscia, Mark Lohmann, Dante J. O'Hara, Paul D. Cunningham, C. Stephen Hellberg, Berend T. Jonker
Summary: The appearance of moire Raman modes from nearly aligned WSe2-WS2 van der Waals heterostructures in a certain frequency range indicates sensitivity to twist angle and strong Raman intensity modulation dependent on excitation energy and temperature. These modes exhibit identical frequencies for a given small twist angle and are a consequence of the large moire length scale resulting in zone-folded phonon modes that are Raman active.
Article
Engineering, Electrical & Electronic
Hao-Yu Lan, Vladimir P. Oleshko, Albert V. Davydov, Joerg Appenzeller, Zhihong Chen
Summary: This study reports a new dielectric interface engineering approach using a relatively high-kappa TaOx interfacial layer to improve the performance of monolayer MoS2 transistors. The TaOx layer not only minimizes active interface trap states, but also acts as an efficient doping layer. This research paves the way for high-performance logic devices based on 2-D materials.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Sz-Chian Liou, Guo-Jiun Shu, Vladimir P. Oleshko, Hwanhui Yun, Xiang -Lin Huang, Hsin-An Chen, Wei -Tin Chen
Summary: Monoclinic hafnia (m-HfO2) is studied to investigate its electronic excitations using electron energy-loss spectroscopy (EELS) and first-principles calculations. Experimental results confirmed the phase purity and crystallinity of m-HfO2. Surface plasmons, volume plasmons, and surface exciton polaritons were observed, and their characteristics were confirmed by EFTEM-SI and energy versus momentum (E-k) maps. The anisotropic shape of volume plasmons was not observed, and a semicore Hf 5p plasmon involving multiplet resonant processes was identified at 48 eV energy loss. All these excitations displayed parabolic dispersion behavior with an energy shift of 1-3 eV.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Nicholas W. M. Ritchie, Andrew Herzing, Vladimir P. Oleshko
Summary: This study presents a quantification model that uses standard X-ray spectra collected from bulk materials to determine the composition and mass thickness of single-layer and multilayer unsupported thin films. The model can iteratively solve for single layers and can be extended to multilayer films. Additional information or assumptions can be added to solve cases where an element is present in multiple layers. The algorithm is well suited for energy-dispersive X-ray spectrometry and has been implemented in the Open Source application DTSA-II.
MICROSCOPY AND MICROANALYSIS
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Reza Karimian, Mansoor Dashti Ardakani, Behzad Koosha, Shahrokh Ahmadi, Mona Zaghloul
Summary: The antenna utilizes a central feed primary monopole antenna to excite the dielectric resonator, and achieves unidirectional characteristic using a secondary monopole. By switching between different secondary monopoles, the desired 60-degree 3-dB bandwidth pattern is achieved.
2021 UNITED STATES NATIONAL COMMITTEE OF URSI NATIONAL RADIO SCIENCE MEETING (USNC-URSI NRSM)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Reza Karimian, Mansoor Dashti Ardakani, Shahrokh Ahmadi, Mona Zaghloul
Summary: A novel non-reciprocal reconfigurable phased shifter feed network is proposed in this paper, utilizing varactor diodes with different bias voltages to generate progressive phase shifts for each output. Measurement results demonstrate both the non-reciprocity and reconfigurability of the network.
2021 UNITED STATES NATIONAL COMMITTEE OF URSI NATIONAL RADIO SCIENCE MEETING (USNC-URSI NRSM)
(2021)
Article
Materials Science, Multidisciplinary
Shiqi Guo, Kaijin Wu, Chengpan Li, Hao Wang, Zheng Sun, Dawei Xi, Sheng Zhang, Weiping Ding, Mona E. Zaghloul, Changning Wang, Fernando A. Castro, Dong Yang, Yunlong Zhao
Summary: Smart contact lenses with a flexible fabrication method and ultrathin MoS2 transistor-based serpentine mesh sensor system have been developed, integrating photodetector, glucose sensor, and temperature sensor for high sensitivity and biocompatibility, showing promise for healthcare and medical applications.
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)