Article
Chemistry, Analytical
Marek Vidis, Michal Patrnciak, Martin Mosko, Andrej Plecenik, Leonid Satrapinskyy, Tomas Roch, Pavol Durina, Tomas Plecenik
Summary: This study examines the coexistence of hydrogen gas sensing and resistive switching in a single device, investigates the influence of the forming process on the sensor's response to hydrogen, and proposes an equivalent device model based on experimental data. The built-in memory operation, triggering the resistive switch by a change of the hydrogen gas concentration, is successfully demonstrated for various devices at different temperatures and humidity levels.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Km Komal, Govind Gupta, Mukhtiyar Singh, Bharti Singh
Summary: The resistive switching performance of reduced graphene oxide (RGO) and tin oxide (SnO2) based nanocomposite has been investigated in this study. The nanocomposite showed improved resistive switching compared to pure SnO2 film, with reduced operating voltage and enhanced resistance ratio. The fabricated composite film-based device exhibited good retention and endurance behavior. These findings suggest great potential for future non-volatile memory devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Xinghui Wu, Nana Cui, Qiuhui Zhang, Xicheng Xiong, Tongjun Zhu, Qixing Xu
Summary: In this study, a Au/single ZnO nanowire/Au memristor was successfully prepared using the in situ electric dielectrophoretic assembly method. The device exhibited self-rectifying behavior with a back-to-back Schottky barrier. Further experiments revealed that the current of the device was controlled by the barrier enhancement layer generated during dielectrophoresis assembly. The device in a high-resistance state demonstrated low leakage current, high resistance ratio, and fast response time.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Sandra Manoj, Antony Sharon, P. S. Subin, Aldrin Antony
Summary: This study demonstrates the fabrication of bilayer metal oxide (MoOx/ZnO) devices with remarkable characteristics for non-volatile memory applications. The addition of MoOx layer over ZnO layer allows for lower voltage switching and excellent data retention properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Yusuf Selim Ocak, Meryem Lamri Zeggar, Mustafa Fatih Genisel, Nilufer Uslu Uzun, Mohammed Salah Aida
Summary: Metal oxide nanostructures with high surface-to-volume ratios are ideal for gas sensor fabrication. By depositing ZnO thin films on vertically aligned silicon nanowires with varying etching times, sensitivity and specific reactive surface of CO2 sensors can be improved. The sensors show low response and recovery times compared to those reported in literature.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Haili Huang, Zhentao Du, Hung-Chun Wu, Fengmei Gao, Lan Jiang, Huilin Hou, Shanliang Chen, Weijun Li, Feng Hu, Weiyou Yang, Dongdong Zhang, Lin Wang
Summary: In this study, a high-temperature resistant ethanol sensor based on rationally designed heterojunctions is constructed, exhibiting significantly improved performance in sensing ethanol at 465 degrees C. The sensor demonstrates high response, fast detection, and excellent selectivity, suggesting promising applications for stable sensors operating under harsh working conditions.
APPLIED SURFACE SCIENCE
(2024)
Article
Materials Science, Multidisciplinary
Ilias A. Tayeb, Feng Zhao, Jafri M. Abdullah, Kuan Y. Cheong
Summary: The study demonstrates the potential of polymannose as a candidate material for environmentally friendly resistive-switching random access memory, showing competitive resistive switching characteristics with a READ window of 2.2 V. The optimal drying time of 7 hours provided high ON/OFF ratio and acceptable endurance cycles.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Tangyou Sun, Hui Shi, Shuai Gao, Zhiping Zhou, Zhigiang Yu, Wenjing Guo, Haiou Li, Fabi Zhang, Zhimou Xu, Xiaowen Zhang
Summary: In this study, the interaction between polyvinyl alcohol (PVA) and two-dimensional material molybdenum disulfide (MoS2) with different mixing ratios was investigated. The optimal ratio of PVA:MoS2 was determined to be 4:1, presenting excellent resistive switching behavior. Additionally, the resistive switching performance was greatly improved by inserting a protective layer of ZnO between the electrode and the composite film. The proposed nanostructured Ag/ZnO/PVA:MoS2/ITO device shows great potential for nonvolatile multilevel data storage memory.
Article
Chemistry, Multidisciplinary
Shaoyu Liu, Weiye Yang, Lei Liu, Huohuo Chen, Yingkai Liu
Summary: Ni-doped ZnO nanowire arrays with different Ni concentrations are grown on etched fluorine-doped tin oxide electrodes by hydrothermal method. The morphology and microstructure of the nanowire arrays are investigated and the sensitive property is measured. The Ni-ZnO nanowires with 8 at.% Ni precursor concentration show high selectivity for H2S and a large response compared to other gases.
Article
Chemistry, Physical
Yantao Yu, Chunqi Wang, Youquan Wen, Chao Jiang, Isaac Abrahams, Zuojuan Du, Jia Sun, Xiaozhong Huang
Summary: The resistive switching behaviors of nitrogen-doped TiO2 nanorod arrays were investigated, and non-volatile and volatile switching were achieved below and above a relative lattice nitrogen content of 21%, respectively. The volatile devices exhibited spiking and decay features similar to the Leaky Integrate-and-Fire model, and the volatile behavior was attributed to the high defect concentration caused by nitrogen doping.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xiao-Dong Li, Bai-Qian Wang, Nian-Ke Chen, Xian-Bin Li
Summary: The non-volatile resistive switching process of a MoS2 based atomristor with a vertical structure is investigated. The monolayer MoS2 with a S vacancy defect (V-S) can maintain insulation characteristics and a high resistance state (HRS) is remained. By adsorbing an electrode metal atom on the MoS2 monolayer, a semi-conductive filament is formed with the assistance of V-S, resulting in a low resistance state (LRS). The investigation provides atomic level understanding of the resistive switching properties and can be applied to atomristors based on other monolayer transition-metal dichalcogenides.
Article
Chemistry, Multidisciplinary
Zonglin Lv, Hongwei Wang, Jinpeng Cao, Chao Zhang, Gaolei Zhao, Richeng Yu, Bo Zhang, Xiaoguang Xu, Yong Jiang, Jun Miao
Summary: The direct coupling of antiferroelectric and resistive switching has been achieved for the first time, allowing the resistance of the heterostructure to switch between volatile and non-volatile behavior. The study also explores synaptic behaviors in the film, opening up potential applications in neural computing.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Xiaoyi Lei, Xiaoya Zhu, Hao Wang, Yang Dai, Han Zhang, Chunxue Zhai, Shulong Wang, Junfeng Yan, Wu Zhao
Summary: This study investigates the resistive switching characteristics of Cu/MoS2/ITO RRAM and proposes conceptual models to explain the nonvolatile and volatile behaviors observed. The results suggest that the resistive switching is influenced by the formation and breaking of Cu conductive filaments and the trapping and de-trapping of electrons at the ITO/MoS2 interface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Karuna Kumari, Ashutosh Kumar, Ajay D. Thakur, S. J. Ray
Summary: Researchers studied a novel hybrid structure of oxide-based non-volatile memory elements with reduced graphene oxide, demonstrating stable and robust bipolar resistive switching behavior. Additional tunability was achieved through varying the rGO concentration, resulting in a clear observation of a metal to insulator transition. The combined attributes of easy fabrication, robust switching behavior, and environmental stability make this system a superior candidate for future non-volatile memory design and oxide electronics.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Physics, Applied
A. Gabbitas, D. P. Pattnaik, Z. Zhou, P. Borisov
Summary: Diffusive memristors show volatile resistive switching through the diffusion of silver nanoparticles in the silicon dioxide matrix. The equivalent circuit of the high resistance state has been analyzed for two types of devices with analog or abrupt switching characteristics. The resistance component agrees well with the differential resistance obtained from the I-V curves, while the capacitance visibly increases in analog switching devices due to the formation of a conductive filament and redistribution of silver nanoparticles. This experimental approach allows for the identification of different electrical circuit behaviors in a memristive device before resistive switching.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Karl Berggren, Qiangfei Xia, Konstantin K. Likharev, Dmitri B. Strukov, Hao Jiang, Thomas Mikolajick, Damien Querlioz, Martin Salinga, John R. Erickson, Shuang Pi, Feng Xiong, Peng Lin, Can Li, Yu Chen, Shisheng Xiong, Brian D. Hoskins, Matthew W. Daniels, Advait Madhavan, James A. Liddle, Jabez J. McClelland, Yuchao Yang, Jennifer Rupp, Stephen S. Nonnenmann, Kwang-Ting Cheng, Nanbo Gong, Miguel Angel Lastras-Montano, A. Alec Talin, Alberto Salleo, Bhavin J. Shastri, Thomas Ferreira de Lima, Paul Prucnal, Alexander N. Tait, Yichen Shen, Huaiyu Meng, Charles Roques-Carmes, Zengguang Cheng, Harish Bhaskaran, Deep Jariwala, Han Wang, Jeffrey M. Shainline, Kenneth Segall, J. Joshua Yang, Kaushik Roy, Suman Datta, Arijit Raychowdhury
Summary: Recent progress in artificial intelligence is primarily attributed to the rapid development of machine learning, but the performance and energy efficiency of hardware systems set fundamental limits on machine learning capabilities. Data-centric computing requires a revolution in hardware systems, with new hardware platforms offering hope for future computing with improved throughput and energy efficiency. However, challenges such as materials selection, device optimization, circuit fabrication, and system integration must be addressed in building such systems.
Review
Chemistry, Multidisciplinary
Mario Lanza, Rainer Waser, Daniele Ielmini, J. Joshua Yang, Ludovic Goux, Jordi Sune, Anthony Joseph Kenyon, Adnan Mehonic, Sabina Spiga, Vikas Rana, Stefan Wiefels, Stephan Menzel, Ilia Valov, Marco A. Villena, Enrique Miranda, Xu Jing, Francesca Campabadal, Mireia B. Gonzalez, Fernando Aguirre, Felix Palumbo, Kaichen Zhu, Juan Bautista Roldan, Francesco Maria Puglisi, Luca Larcher, Tuo-Hung Hou, Themis Prodromakis, Yuchao Yang, Peng Huang, Tianqing Wan, Yang Chai, Kin Leong Pey, Nagarajan Raghavan, Salvador Duenas, Tao Wang, Qiangfei Xia, Sebastian Pazos
Summary: RS devices face challenges in variability and reliability issues, and the current method of endurance evaluation shows high inaccuracy and unreliability. A new method proposed in this article aims to provide a more accurate characterization of endurance in RS devices, which could lead to more reliable literature and accelerate their integration in commercial products.
Editorial Material
Chemistry, Physical
Qiangfei Xia, J. Joshua Yang, Rivu Midya
Summary: A disordered network of nanowires controlled by thermodynamics is used as a physical 'reservoir' for processing spatiotemporal information in a memristive implementation of reservoir computing.
Article
Nanoscience & Nanotechnology
Ye Zhuo, Rivu Midya, Wenhao Song, Zhongrui Wang, Shiva Asapu, Mingyi Rao, Peng Lin, Hao Jiang, Qiangfei Xia, R. Stanley Williams, J. Joshua Yang
Summary: A generalized model for simulating diffusive and drift memristors to faithfully reproduce experimental results has been presented in this study. The diffusive memristor was chosen as the basis due to its complex dynamical properties that are difficult to model efficiently. The validity of the general model was verified by collecting a data set from statistical measurements on SiO2:Ag diffusive memristors.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Multidisciplinary Sciences
Fatemeh Kiani, Jun Yin, Zhongrui Wang, J. Joshua Yang, Qiangfei Xia
Summary: Memristive crossbar arrays aim to improve computing throughput and power efficiency through in-memory analog computing. The new hardware-based neural network design implements activation functions in analog hardware, eliminating the need for digital conversion and transmission, resulting in higher computing efficiency.
Editorial Material
Engineering, Electrical & Electronic
Qiming Shao, Zhongrui Wang, J. Joshua Yang
Summary: In-memory computing chips based on MRAM can provide energy-efficient hardware for machine learning tasks.
NATURE ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Sundar Kunwar, Chase Bennett Somodi, Rebecca A. Lalk, Bethany X. Rutherford, Zachary Corey, Pinku Roy, Di Zhang, Markus Hellenbrand, Ming Xiao, Judith L. MacManus-Driscoll, Quanxi Jia, Haiyan Wang, J. Joshua Yang, Wanyi Nie, Aiping Chen
Summary: In this study, the Au/Nb:SrTiO3 (Nb:STO) Schottky interface system was used as a model to investigate the interface-type (IT) resistive switching (RS) memory. The results showed that protons from moisture play a crucial role in determining the RS characteristics in IT memristors. The large hysteresis and Schottky barrier disappear in a controlled environment without protons/moisture, but can be recovered when the devices are re-exposed to a humid environment. The RS mechanism in Au/Nb:STO is attributed to the modulation of the Schottky barrier by a proton assisted electron trapping and detrapping process.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunning Li, Wenhao Song, Zhongrui Wang, Hao Jiang, Peng Yan, Peng Lin, Can Li, Mingyi Rao, Mark Barnell, Qing Wu, Sabyasachi Ganguli, Ajit K. Roy, Qiangfei Xia, J. Joshua Yang
Summary: This study demonstrates a reconfigurable memristive field-programmable analog array (memFPAA) platform for various applications such as filters, equalizers, and classifiers. The memFPAA utilizes memristive devices and CMOS components, and it features programmable analog memristors, memristive routing networks, and memristive vector-matrix multipliers. This platform provides opportunities for fast prototyping analog designs and efficient analog applications in signal processing and neuromorphic computing.
ADVANCED MATERIALS
(2023)
Editorial Material
Chemistry, Multidisciplinary
J. Joshua Yang, Julie Grollier, R. Stanley Williams, Ru Huang
ADVANCED MATERIALS
(2023)
Proceedings Paper
Computer Science, Information Systems
Tongyu Zhou, Connie Liu, Joshua Kong Yang, Jeff Huang
Summary: Vector illustrations can be individually filtered and transformed using tools like filtered.ink, which provides a node graph interface for constructing and exploring filters. This allows vector graphics and their filters to be shared and remixed as a form of vector hypermedia. Through a usability study, new workflow patterns and avenues of expression have been identified.
PROCEEDINGS OF THE 2023 CHI CONFERENCE ON HUMAN FACTORS IN COMPUTING SYSTEMS, CHI 2023
(2023)
Review
Nanoscience & Nanotechnology
Ke Yang, J. Joshua Yang, Ru Huang, Yuchao Yang
Summary: With the development of semiconductor technology, the visible inefficiency of traditional computing architecture can no longer meet the growing demands for data processing. Neuromorphic systems, which require device components with rich dynamics and nonlinearity, have great prospects in addressing this issue and enabling a new generation of computing paradigm. This article reviews the internal mechanisms that give memristive devices their nonlinearity and rich dynamics, explores the implementation of nonlinear spiking neurons using the physical processes in memristors, and summarizes typical examples of neuromorphic dynamic systems based on nonlinear memristors, including memristive reservoir, memristive oscillatory neural network, and memristive chaotic computing. Finally, an outlook for the development of neuromorphic dynamic systems is provided.
Article
Nanoscience & Nanotechnology
Mingyi Rao, Wenhao Song, Fatemeh Kiani, Shiva Asapu, Ye Zhuo, Rivu Midya, Navnidhi Upadhyay, Qing Wu, Mark Barnell, Peng Lin, Can Li, Zhongrui Wang, Qiangfei Xia, J. Joshua Yang
Summary: This study proposes a memristor crossbar array with a timing selector to address sneak path current issues. By using silver-based diffusive memristors as timing selectors, large-dimension real-world problems can be solved effectively.
Article
Engineering, Electrical & Electronic
Dennis Christensen, Regina Dittmann, Bernabe Linares-Barranco, Abu Sebastian, Manuel Le Gallo, Andrea Redaelli, Stefan Slesazeck, Thomas Mikolajick, Sabina Spiga, Stephan Menzel, Ilia Valov, Gianluca Milano, Carlo Ricciardi, Shi-Jun Liang, Feng Miao, Mario Lanza, Tyler J. Quill, Scott T. Keene, Alberto Salleo, Julie Grollier, Danijela Markovic, Alice Mizrahi, Peng Yao, J. Joshua Yang, Giacomo Indiveri, John Paul Strachan, Suman Datta, Elisa Vianello, Alexandre Valentian, Johannes Feldmann, Xuan Li, Wolfram H. P. Pernice, Harish Bhaskaran, Steve Furber, Emre Neftci, Franz Scherr, Wolfgang Maass, Srikanth Ramaswamy, Jonathan Tapson, Priyadarshini Panda, Youngeun Kim, Gouhei Tanaka, Simon Thorpe, Chiara Bartolozzi, Thomas A. Cleland, Christoph Posch, Shihchii Liu, Gabriella Panuccio, Mufti Mahmud, Arnab Neelim Mazumder, Morteza Hosseini, Tinoosh Mohsenin, Elisa Donati, Silvia Tolu, Roberto Galeazzi, Martin Ejsing Christensen, Sune Holm, Daniele Ielmini, N. Pryds
Summary: This article introduces the characteristics and advantages of von Neumann architecture and neuromorphic computing systems. While traditional von Neumann architecture is powerful, it has high power consumption and cannot handle complex data. Neuromorphic computing systems, inspired by biological concepts, can achieve lower power consumption for storing and processing large amounts of digital information. The aim of this article is to provide perspectives on the current state and future challenges in the field of neuromorphic technology, and to provide a concise yet comprehensive introduction and future outlook for readers.
NEUROMORPHIC COMPUTING AND ENGINEERING
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Fatemeh Kiani, Jun Yin, Zhongrui Wang, J. Joshua Yang, Qiangfei Xia
Summary: Implementing synaptic weights using tunable conductance of memristors can improve power and computing throughput through analog computing in-memory. Hardware-based perceptron implementation with memristor crossbar arrays has gained interest recently. By implementing activation functions on hardware between different layers of a perceptron, researchers have avoided unnecessary communication, improved power efficiency, and achieved high recognition accuracy.
2021 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
(2021)
Article
Nanoscience & Nanotechnology
Navnidhi K. Upadhyay, Thomas Blum, Petro Maksymovych, Nickolay V. Lavrik, Noraica Davila, Jordan A. Katine, A. V. Ievlev, Miaofang Chi, Qiangfei Xia, J. Joshua Yang
Summary: Memristor devices are seen as promising technologies for next-generation non-volatile memory, but a crucial selector device must be developed to enable their dense packing in large crossbar arrays. By demonstrating a trilayer tunneling selector with a record-high non-linearity, the feasibility of 1S1R integration was further proven.
FRONTIERS IN NANOTECHNOLOGY
(2021)
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)
