Article
Chemistry, Analytical
Ying Li, Pengyue Song, Qingbin Xu, Wenjuan Wu, Nan Long, Jiabo Wang, Lidong Zhou, Ruile Pan, Weijun Kong
Summary: An electrochemiluminescence (ECL) aptasensor with aptamer, N-doped carbon dots (NCDs), and DNA tetrahedral nanostructure (DTN) was developed for ultra-sensitive detection of aflatoxin B1 (AFB1). The sensor exhibited excellent sensitivity, with a low detection limit and wide linear concentration range, as well as high accuracy and recovery in spiked Coix seed matrices. The successful application of the sensor in actual samples confirmed its practicality as a universal platform for trace contaminant detection by altering aptamers.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ragu Sasikumar, Byungki Kim
Summary: In recent years, there has been an increase in the number of patients with prostate cancer, leading to a greater need for monitoring and detecting the anticancer drug, flutamide, in the human body. Researchers have developed a novel electrocatalyst based on Alg-Cys-AuNPs for the detection of flutamide, which exhibits excellent detection performance and is suitable for real-time industrial applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Zhen Wang, Yanhao Li, Xiangnan He, Rui Yan, Zhemin Li, Yadong Jiang, Xian Li
Summary: In this study, an improved deep BRNN model was developed to solve the cross-sensitivity problem of chemical gas sensor array, achieving a recognition accuracy of 98.93%.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jinju Xu, Chaoying Tong, Yuanxin Cao, Ziyi Qin, Chunhui Liao, Yuxia Chen, Shuyun Shi, Ying Guo
Summary: In this study, a dual-channel foldable microfluidic paper-based parallel enzymatic reaction system was fabricated for simultaneous detection of AChE and alpha-Glu, as well as screening inhibitors. The developed platform provides a convenient, efficient, sensitive, and specific method for point-of-care testing of disease and development of drugs.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
S. Madanan Anju, Susan Varghese, K. Abraham Merin, Ali Ibrahim Shkhair, Greeshma Rajeevan, Geneva Indongo, Sony George
Summary: Researchers have developed a novel nano couple platform for detecting cardiac biomarkers. By utilizing immunocomplex formation between antigen and antibody, the pre-quenched fluorescence of monoclonal antibody conjugated nano fluorophore was successfully lighted up. This system selectively detects the presence of cardiac troponin-T (cTnT) by giving an enhanced fluorescence signal proportional to the concentration of cTnT antigen, achieved by disrupting the direct contact of the cluster and two-dimensional sheet through specific antigen-antibody interaction forming an immunocomplex.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yibiao Jin, Donghao Hu, Jiamiao Yin, Kuangshi Sun, Lijun Chen, Shujuan Liu, Fuyou Li, Qiang Zhao
Summary: In this study, an iridium-based probe decorated with a p-nitrophenyl group was designed and investigated for the detection and imaging of nitroreductase (NTR). The probe showed selective and precise detection of NTR using photoluminescence lifetime imaging (PLIM) within living cells.
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)
Article
Chemistry, Analytical
Hong Ran Tao, Hang Yan, Zhe Sun, Ya Bin Cui, Nian Bing Li, Hong Qun Luo
Summary: In this study, a ratiometric fluorescence DNA nanozipper was developed for highly sensitive detection of ATP. The sensing strategy showed a linear response to ATP concentration and could detect low concentrations, demonstrating promising application potential in biological samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jianhua Fan, Xiaohua Li, Cheng Ma, Qun Wang, Changchao Zhang, Lu Wang, Yang Xia, Zhiwu Han
Summary: In this study, a new type of flexible sensory electronic device is developed, which demonstrates excellent performance in high-intensity and high-stretchability scenarios. By employing a combination of flexible materials and biomimetic design, researchers successfully achieved a substrate with high mechanical strength and large elongation capacity, along with impressive electrical conductivity. Based on this innovation, they established an online testing platform for human-machine interaction that can accommodate substantial deformations at joint interfaces, allowing for synchronization and emulation of extensive tensile movements between mechanical prosthetics and human articulations.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Houriyeh Sohrabnavi, Mohammad Mohammadimasoudi, Hassan Hajghassem
Summary: This article reports a liquid crystal-based biosensor for the detection of the main biomarker of Alzheimer's disease, amyloid beta protein. The sensor has a fast response time, high specificity, and a low detection limit.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yuyang Liu, Shiqi Chen, Bing Xiao, Jifeng Chu, Hongkang Wang, Yukun Chen, Tianhao Yao, Aijun Yang, Xiaogang Han, Mingzhe Rong, Xiaohua Wang
Summary: In this study, ultra-large micro-sized Sn3O4 nanosheet hierarchies were prepared and found to possess excellent hydrogen sensing performance and stability. The superior performance of the material was verified through theoretical calculations and practical applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Hongchao Deng, Hidefumi Mitsuno, Eri Kuroda, Sawako Niki, Ryohei Kanzaki, Takamichi Nakamoto
Summary: The study proposes a gas-phase odor biosensor for odor mixture quantification based on the relative comparison method, which utilizes cells expressing ORs, liquid thickness control, and liquid exchange. The method overcomes the challenges of biosensor drift and nonlinearity, demonstrating high precision and efficiency in detecting odor mixtures.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Qingfa Gong, Shuyun Meng, Dong Liu, Tianyan You
Summary: In this study, a sensitive PEC apta-sensor was constructed based on a direct Z-scheme heterojunction for the detection of ochratoxin A (OTA). By manipulating the conductivity and hydrophilicity of the materials, the separation of charge carriers and amplification of PEC signal were achieved, enabling the detection of OTA. The developed aptasensor exhibited a wide linear detection range and low detection limit, as well as good selectivity and stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Bo-Chuan Hsieh, Yan-Ting Li
Summary: Glyphosate monitoring is crucial for environmental protection, biodiversity, human health, and food safety. This study presents an automated screening method using a cost-effective and stable chromophore probe for accurate and rapid quantification of glyphosate in real environmental samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dongdong Liu, Mengpei Wang, Jicao Han, Zhengyu Zhang, Xi Wang
Summary: By decorating tetraphenylethene (TPE) backbones with hydrophilic pyridine ethanol-related groups, a series of novel amphiphilic TPE-based pyridinium salts were synthesized and used as water-soluble turn-on fluorescence probes for latent fingerprint development and antibiotic detection. The method has many advantages, including water solubility, low working concentration, ease of operation, good stability, high safety, high contrast, high sensitivity, and high selectivity.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Mei-Ling Lu, Xin-Yue Zhang, Jun-Qi Song, Qiu-Yi Peng, Han-Xiao Xiao, Yang Yang, Wen-Bin Liang, Shaoguang Sun, Ruo Yuan, Dong-Rong Xiao
Summary: This research demonstrates that the electrical conductivity of HOF-based ECL materials can be significantly improved, leading to enhanced ECL performance. A conductive HOF composite was prepared by growing H3TATB-HOF on a highly conductive PEDOT:PSS polymer, resulting in a remarkable increase in ECL intensity. By combining this improved ECL property with a 3D DNA walker amplification strategy, an ultrasensitive ECL biosensor for microRNA-21 detection was designed.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Kun Yu, Huining Chai, Huayue Sun, Xianxin Xiang, Huili Zhao, Mingwei Tian, Lijun Qu, Guangyao Zhang, Xueji Zhang
Summary: The interactions between water molecules and PMOFs with 15 metal nodes were studied and assessed using the fluorescence method in this study. A model for evaluating the water stability of PMOFs was established, and PMOFs were categorized into three groups based on their fluorescence intensity and kinetic performance in ethanol with different water contents. The water-sensitive magnesium node PMOF showed high sensitivity for detecting trace water in organic media.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Xuyang Zhao, Yuxiang Li, Qi Wang, Man Luo, Yi Zhou, Zhihe Guo, Xiang Wu
Summary: A label-free optical detection method with ultrahigh sensitivity and tunable range was developed to monitor protein conformation changes. The biosensor prototype, constructed with overlapping capillaries, successfully monitored the structural variations of silk proteins. This ultrasensitive biosensor has significant potential for clinical diagnosis, healthcare, pharmaceutical screening, and food security.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tae Hoon Eom, Sang Eun Lee, Yeong Jae Kim, Sungkyun Choi, Gi Baek Nam, Jung-El Ryu, Tae Hyung Lee, Jin Wook Yang, Sung Hwan Cho, Seung Ju Kim, Sang Eon Jun, Seonyong Lee, Seungsoo Kim, Hee Jung Park, Ho Won Jang
Summary: Chemoresistive humidity sensors based on ultrathin V2O5•nH2O nanobelts show promising performance in real-time breath monitoring, with rapid response and recovery, as well as excellent selectivity to humidity.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Panwang Hu, Jinjin Liu, Changkun Xia, Bangxiang Liu, Hengjia Zhu, Xiangheng Niu
Summary: Given the significant threats of heavy metals to ecological systems and human health, monitoring them is crucial. This study designs a non-redox nanozyme for detecting Hg2+ without interference from redox substances. The approach demonstrates highly sensitive and specific measurement of Hg2+ with excellent reliability and practicability. It is the first study to detect Hg2+ using phosphatase-mimicking nanozymes, inspiring exploration of new analytical methods with non-redox nanozymes.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
