Article
Biophysics
Kyung Ho Kim, Dongseok Moon, Jai Eun An, Seon Joo Park, Sung Eun Seo, Siyoung Ha, Jinyeong Kim, Kayoung Kim, Sooyeol Phyo, Jiwon Lee, Hye-Yeon Kim, Moonil Kim, Tai Hyun Park, Hyun Seok Song, Oh Seok Kwon
Summary: In this study, a portable bioelectronic nose (BE-nose) integrated with trace amine-associated receptor (TAAR) nanodiscs (NDs) was developed for food quality monitoring. The BE-nose showed high sensitivity in detecting the biogenic amines cadaverine and putrescine in food samples. Additionally, by integrating commercial gas sensors, the accuracy and reliability of the BE-nose platform for real food samples were improved.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Adrian Sanchez Visedo, Jorge Losada Matias, Ana Soldado Cabezuelo, Jose Manuel Costa Fernandez, Maria Teresa Fernandez Arguelles, Marta Valledor Llopis, Juan Carlos Campo Rodriguez, Francisco Javier Ferrero Martin
Summary: A novel fiber-optic prototype has been designed for selective and sensitive miRNA detection. The output light power is automatically adjusted to minimize differences in brightness and potential losses. The prototype has been validated for the detection of miRNAs identified as biomarkers of bovine mastitis.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Chemistry, Analytical
Wei-Qun Lai, Yu-Fen Chang, Fang-Ning Chou, De-Ming Yang
Summary: In this study, a portable fluorescence resonance energy transfer (FRET)-based Pb biosensor named pMet-lead was developed for rapid detection of Pb in water from the environment and living/drinking supply systems. The results demonstrated the reliability of pMet-lead in six regions in Taiwan.
Article
Multidisciplinary Sciences
Wenxi Huang, Qiongling Ding, Hao Wang, Zixuan Wu, Yibing Luo, Wenxiong Shi, Le Yang, Yujie Liang, Chuan Liu, Jin Wu
Summary: The authors report the development of a device for H2S sensing across a range of applications. The device exhibits high sensitivity, low detection limit, and excellent selectivity for H2S, and has potential applications in non-invasive halitosis diagnosis and identification of meat spoilage. A wireless sensory system has also been developed for remote monitoring.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Leonardo Furst, Manuel Feliciano, Laercio Frare, Getulio Igrejas
Summary: This study presents a low-cost platform for measuring methane within a low concentration range, which was evaluated in different environments. The system proved capable of reliably measuring low methane concentrations, showing itself to be a good alternative as a screening monitoring system.
Review
Chemistry, Analytical
Peuli Nath, Kazi Ridita Mahtaba, Aniruddha Ray
Summary: Fluorescence-based detection techniques are widely used in biomedical and environmental research for their high sensitivity, selectivity, and short response time. However, the bulky and expensive readout devices and the need for supervision limit their accessibility in resource-limited settings. To overcome these challenges, efforts have been made to integrate fluorescence-based assays into miniature platforms and couple them with portable readout devices like smartphones and wearable sensors, enabling point-of-care detection of bio-chemical analytes. This review highlights some recently developed portable fluorescence-based assays by discussing the design of fluorescent sensor molecules, their sensing strategy, and the fabrication of point-of-care devices.
Article
Engineering, Electrical & Electronic
Hamide Ehtesabi, Amir Asadollahi, Zahra Hallaji, Mahsa Goudarzi, Ali Rezaei
Summary: The study synthesized new fluorescent carbon dots using a hydrothermal method and pH-responsive properties. Additionally, a smartphone-based portable device was designed to analyze pH real-time, showing high potential for practical monitoring.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Horticulture
Giuseppe Ferrara, Valerio Marcotuli, Angelo Didonna, Anna Maria Stellacci, Marino Palasciano, Andrea Mazzeo
Summary: Near infrared (NIR) spectroscopy has been used in the agricultural industry to predict quality parameters. The study found that using a SCiO sensor and NIR spectroscopy, it is possible to accurately predict ripening parameters of table grapes, such as total soluble solids (TSS), titratable acidity, and pH. This rapid and economic sensor can be applied in vineyards for quick assessment of grape quality, as well as for fast sorting and screening throughout the supply chain.
Article
Biophysics
Shashank K. Gahlaut, Anisha Pathak, Banshi D. Gupta, J. P. Singh
Summary: The platform utilizes specific antibodies for early detection of Dengue virus NS1 antigen, providing high sensitivity and detection limit. The technology shows potential for very early detection in infected blood samples.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Michele Astolfi, Giulia Zonta, Sandro Gherardi, Cesare Malagu, Donato Vincenzi, Giorgio Rispoli
Summary: This study introduces a portable device that can quickly calibrate and characterize chemoresistive nanostructured gas sensors in laboratory and field applications. The device has automated features, allowing for precise setting of the sensor's working temperature and recording of its responses to different gases and environments.
Article
Engineering, Electrical & Electronic
Qingrong Ma, Buayishamu Kutilike, Nuerguli Kari, Shawket Abliz, Abliz Yimit
Summary: Hybrid TCPP-g-C3N4 composites were facilely synthesized through grinding and ethanol dispersion, and their aggregation behaviors in different pH conditions were studied. It was found that the composite under basic conditions showed fine response to SO2 and H2S, with the gas-sensitive mechanism being protonation and deprotonation process according to UV-vis spectroscopy.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Samraj Mollick, Sujeet Rai, Louis Frentzel-Beyme, Vishal Kachwal, Lorenzo Dona, Dagmar Schuermann, Bartolomeo Civalleri, Sebastian Henke, Jin-Chong Tan
Summary: A water-resistant metal-organic framework (MOF)-based composite has been developed for selective detection of acetone vapor in the diabetic range, achieving rapid detection through fluorescence approach and the ability of reuse.
Article
Chemistry, Analytical
V. Ruzsanyi, H. Wiesenhofer, C. Ager, J. Herbig, G. Aumayr, M. Fischer, M. Renzler, T. Ussmueller, K. Lindner, C. A. Mayhew
Summary: Human smuggling is a significant part of transnational organized crime, posing a growing threat to national and international security. Detecting and intercepting hidden humans in containers or trucks at transportation hubs is crucial. A portable device combining ion mobility spectrometry and sensor array system can quickly detect volatile organic compounds emitted by humans, with a classification algorithm providing a simple YES or NO decision. Field measurements show that it takes 20 to 30 minutes for emitted trace compounds to reach detectable concentrations.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Analytical
Miroslaw Kwasny, Aneta Bombalska
Summary: Methane is a commonly analyzed gas with various concentrations and wide applications. This review discusses optical methods like NIR, TDLS, CRDS, CEAS, lidar, and laser photoacoustic spectroscopy used for methane detection, as well as our own designs of laser methane analyzers for different applications (DIAL, TDLS, NIR).
Article
Chemistry, Analytical
Samuel Fernandes, Mouhaydine Tlemcani, Daniele Bortoli, Manuel Feliciano, Maria Elmina Lopes
Summary: A newly developed portable iron measurement system (IMS) based on spectroscopy absorption for determination of Fe2+ in water is presented. The IMS is designed to operate in the field and is tuned to quantify iron concentrations according to human consumption regulations. It uses the phenanthroline standard method for iron determination and is equipped with an optical sensing system. The IMS showed better analytical performance compared with the state-of-the-art instrument.
Article
Chemistry, Analytical
Alhulw H. Alshammari, Zahrah Alqahtani, Faiz Bukhari Mohd Suah, Syaza Atikah Nizar, Alan Dunbar, Martin Grell
ANALYTICA CHIMICA ACTA
(2020)
Article
Physics, Applied
R. Ashkar, R. M. Dalgliesh, R. Pynn, A. D. F. Dunbar, R. A. L. Jones, A. J. Parnell
APPLIED PHYSICS LETTERS
(2020)
Article
Energy & Fuels
Donovan Aguilar-Dominguez, Alan Dunbar, Solomon Brown
Article
Chemistry, Multidisciplinary
Gabriel E. Perez, Harikrishna Erothu, Paul D. Topham, Francesco Bastianini, Tarek I. Alanazi, Gabriel Bernardo, Andrew J. Parnell, Stephen M. King, Alan D. F. Dunbar
ADVANCED MATERIALS INTERFACES
(2020)
Article
Chemistry, Physical
Noura Alhazmi, Edwin Pineda, Jonathan Rawle, Jonathan R. Howse, Alan D. F. Dunbar
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Physics, Condensed Matter
G. E. Perez, A. Alkorbi, A. Iraqi, F. Bastianini, E. Pineda, S. M. King, A. D. F. Dunbar
JOURNAL OF SURFACE INVESTIGATION
(2020)
Article
Chemistry, Physical
Konstantinos Tsevas, Joel A. Smith, Vikas Kumar, Cornelia Rodenburg, Mihalis Fakis, Abd Rashid bin Mohd Yusoff, Maria Vasilopoulou, David G. Lidzey, Mohammad K. Nazeeruddin, Alan D. F. Dunbar
Summary: The synthesis of the lead iodide precursor through planetary ball milling has opened up possibilities for perovskite solar cells, with results highlighting the critical role of precursor stoichiometry in device performance.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Edwin Pineda De La O, Noura Alhazmi, Stephen J. Ebbens, Alan D. F. Dunbar
Summary: This study investigates the nucleation and growth mechanisms during the formation of mixed halide perovskite films using in situ optical microscopy and GISAXS measurements. It was found that the addition of DIO and HI can accelerate nucleation and modify the size of nuclei during growth. These results provide important insights into the crystallization mechanisms and can help improve control over perovskite film formation.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Anastasia Soultati, Francesca Nunzi, Azhar Fakharuddin, Apostolis Verykios, Konstantina K. Armadorou, Marinos Tountas, Stylianos Panagiotakis, Ermioni Polydorou, Asterios Charisiadis, Vasilis Nikolaou, Michael Papadakis, Georgios Charalambidis, Emmanouil Nikoloudakis, Konstantina Yannakopoulou, Xichang Bao, Chunming Yang, Alan D. F. Dunbar, Emmanuel Kymakis, Leonidas C. Palilis, Abd Rashid Bin Mohd Yusoff, Panagiotis Argitis, Athanassios G. Coutsolelos, Filippo De Angelis, Mohammad Khaja Nazeeruddin, Maria Vasilopoulou
Summary: This study introduces functionalized boron-dipyrromethene (BODIPY) molecules as ultrathin interlayers at the absorber/electron transport layer interface, leading to enhanced performance and stability of the solar cells. Amino-functionalized BODIPY, with a high molecular dipole moment, achieves the highest power conversion efficiency in both organic and perovskite solar cells, and shows enhanced stability under continuous illumination and heating.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Energy & Fuels
Suleiman Bello, Adam Urwick, Francesco Bastianini, Alisyn J. Nedoma, Alan Dunbar
Summary: This paper discusses the working principles, material properties, fabrication processes, and challenges facing perovskite solar cells, aiming to provide a guide for beginners in the study of this technology.
Article
Energy & Fuels
Adam N. Urwick, Francesco Bastianini, Gabriel E. Perez, Alan Dunbar
Summary: Doping or alloying of cations and halides in perovskite materials can improve their moisture stability, but they still undergo degradation induced by moisture. This study used TOF-GISANS to uncover degradation pathways and found evidence of PbI2 and PbBr2 formation, with less degradation observed in films containing Cs. Deuterated by-products readily formed, causing expansion and fragmentation of perovskite crystals. TOF-GISANS was demonstrated as a powerful tool for characterizing these materials.
Article
Energy & Fuels
Donovan Aguilar-Dominguez, Jude Ejeh, Solomon F. Brown, Alan D. F. Dunbar
Summary: This study utilized machine learning model classifier to predict real-world EV travel data in England and applied an optimization model to generate different scenarios of state of charge and consumers' electricity cost. The results showed that PV penetration rates and electricity tariffs had an impact on the SOC percentage and consumers' electricity cost for EVs during a week.
Correction
Energy & Fuels
Adam N. Urwick, Francesco Bastianini, Gabriel E. Perez, Alan Dunbar
Article
Energy & Fuels
Donovan Aguilar-Dominguez, Jude Ejeh, Alan D. F. Dunbar, Solomon F. Brown
Summary: This study proposes a machine learning model to predict the availability of electric vehicles providing vehicle to home services, showing that the less an EV is used for travelling, the greater its availability for V2H services, and that deploying V2H can reduce electricity costs.
Article
Chemistry, Multidisciplinary
William D. Seddon, Latifah Alfhaid, Alan D. F. Dunbar, Mark Geoghegan, Nicholas H. Williams
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)
