Article
Chemistry, Multidisciplinary
Shaghraf Javaid, Muhammad Rizwan Azhar, Xinyu Li, Juliette I. Phillips, Tanveer Hussain, Hussein Abid, Jun Chen, Xiaobo Ji, Debbie S. Silvester
Summary: This article reports a method for detecting TNT based on an electrochemical sensor material. By changing the concentration of NH4OH in the solvent, two Zn(BDC) MOFs with novel morphologies were fabricated. After characterization and experimental verification, the material with the best electrochemical response to TNT under optimal conditions was obtained.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Analytical
Felix Melendez, Patricia Arroyo, Jaime Gomez-Suarez, Sergio Palomeque-Mangut, Jose Ignacio Suarez, Jesus Lozano
Summary: In this study, a novel prototype of an electronic nose using digital and analog sensors is presented, capable of detecting and classifying low concentrations of TCA in cork samples, as well as predicting their concentrations.
Article
Psychiatry
Julia M. Longenecker, Gretchen L. Haas, Dean F. Salisbury
Summary: This study aimed to confirm and expand the hierarchical structure of psychosis symptoms in first-episode psychosis. The 4-component model provided the best prediction of functioning, with apathy/asociality being a strong predictor of long-term functioning.
SCHIZOPHRENIA BULLETIN
(2022)
Article
Food Science & Technology
Qiaoyi Zhou, Zhenhua Dai, Feihu Song, Zhenfeng Li, Chunfang Song, Caijin Ling
Summary: To monitor the fermentation quality of black tea objectively, a computer vision system and electronic nose were used to analyze the image and odor features of Yinghong No.9 black tea. The fermentation process was divided into three stages based on the trends of tea polyphenols, volatile substances, image eigenvalues, and odor eigenvalues. Principal component analysis and partial least squares discriminant analysis were employed to analyze the data, and a feature-level fusion strategy with support vector machine showed the highest classification accuracy rates of 100% for training sets and 95.6% for testing sets. The performance of support vector regression models for tea polyphenol content prediction based on feature-level fusion data outperformed data-level models.
Article
Biochemistry & Molecular Biology
Yueqi Wang, Jinxing Li, Yanyan Wu, Shengyuan Yang, Di Wang, Qiang Liu
Summary: The study found that heart puncture and bloodletting is the preferred method to maintain sea bass quality, and different slaughter methods lead to volatile compound changes in sea bass.
Article
Engineering, Electrical & Electronic
K. R. Sinju, B. Bhangare, A. Pathak, S. J. Patil, N. S. Ramgir, A. K. Debnath, D. K. Aswal
Summary: A novel ZnO nanowire-based e-nose was developed to successfully discriminate H2S and NO2 test gases. Different sensitizers were used to modify the ZnO nanowires and annealed to form heterojunctions, with the gas sensing results interpreted using graphical and multivariate data analysis techniques. The e-nose showed qualitative and quantitative discrimination capabilities for the two test gases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Food Science & Technology
Hyangyeon Jeong, Sojeong Yoon, Seong Min Jo, Seong Jun Hong, Young Jun Kim, Jae Kyeom Kim, Eui-Cheol Shin
Summary: This study investigated the effects of four brewing methods on the chemical sensory properties of green and roasted coffee beans extract. The taste and volatile aromatic compounds of coffee were analyzed using an electronic tongue and nose. The findings provide basic data for the coffee industry.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Agronomy
Agustin Conesa Celdran, Martin John Oates, Carlos Molina Cabrera, Chema Pangua, Javier Tardaguila, Antonio Ruiz-Canales
Summary: The aroma of wine is traditionally analyzed by sensory methods or gas chromatography, but these methods are slow, expensive, and not continuous. Interest in rapid methods has increased recently. Electronic noses have advantages such as high sensitivity, speed, low cost, and minimal sample preparation. However, they lack selectivity. In this study, a low-cost electronic nose device is presented for analyzing and identifying different wine varieties.
Article
Chemistry, Analytical
Ciril Reiner-Rozman, Bernhard Pichler, Vivien Madi, Petra Weissenboeck, Thomas Hegedues, Patrik Aspermair, Johannes Bintinger
Summary: This study investigates the performance of polyaniline (PANI) films as promising candidates for electronic nose-based IoT applications. Different dopant systems and concentrations are examined for their sensitivity and specificity in gas sensing applications. The study also explores the influence of relative humidity on sensor hysteresis and provides insights for machine learning discrimination.
Article
Food Science & Technology
Weifang Yang, Youyou Yang, Liang Wang, Xueze Lv, Jing Li, Huanxian Cui, Chaohua Tang, Qingyu Zhao, Yaxiong Jia, Yuchang Qin, Junmin Zhang
Summary: This study identified and compared volatile compounds in Taihe black-boned silky fowl (TS) and Hy-line Brown (HL) egg yolks using gas chromatography-olfactometry-mass spectrometry-based volatilomics. The results showed significant differences in flavor compounds between the egg yolks from the two breeds, with TS egg yolks having a stronger overall odor and flavor. Metabolomic and lipidomic analyses revealed differences in metabolites, lipids, and fatty acid profiles, providing insights into the underlying mechanisms of aroma characteristics.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Neurosciences
Hilmar R. J. van Weering, Tjalling W. Nijboer, Maaike L. Brummer, Erik W. G. M. Boddeke, Bart J. L. Eggen
Summary: Microglia are resident macrophages that play a key role in immune surveillance and maintaining CNS homeostasis. This study provides a computational pipeline for image segmentation, feature extraction, and morphological categorization of microglia using hierarchical clustering on principal components. The pipeline revealed regional variations in microglia morphologies but found no evidence of male-female differences in adult mice. The findings highlight the value of the pipeline for unbiased identification and classification of microglia in CNS (disease) models.
Article
Biochemistry & Molecular Biology
Zuobing Xiao, Minxing Niu, Yunwei Niu
Summary: This study used multiple analytical methods to test the components of three cultivars of durian and evaluated their flavor differences using an electronic nose and electronic tongue.
Article
Food Science & Technology
Elisabet Martin-Tornero, Ramiro Sanchez, Jesus Lozano, Manuel Martinez, Patricia Arroyo, Daniel Martin-Vertedor
Summary: The sterilization process of Californian-style black olives influences the phenol content, acrylamide synthesis, and volatile compounds. Different olive cultivars show varying levels of phenolic compounds and acrylamide content after sterilization. Acrylamide content is highly correlated with volatile compounds and can be quantified indirectly using an E-nose combined with Partial Least Square analysis.
Article
Chemistry, Analytical
Jordi Palacin, Elena Rubies, Eduard Clotet, David Martinez
Summary: The artificial replication of an olfactory system is currently a challenge. This paper proposes a low-cost electronic nose composed of an array of sensors to evaluate air quality and classify target volatiles. The method achieves high classification success rates in laboratory conditions.
Article
Health Care Sciences & Services
Povilas Tarailis, Frances M. De Blasio, Dovile Simkute, Inga Griskova-Bulanova
Summary: The study aims to investigate the association between mind wandering experiences and individual biological signals during resting-state. By measuring subjective experiences with the Amsterdam Resting-State Questionnaire and extracting EEG data-driven components using frequency principal component analysis, a positive correlation was found between individual loadings and ratings for Sleepiness and Comfort.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
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)