Review
Spectroscopy
Giorgio S. Senesi, Russell S. Harmon, Richard R. Hark
Summary: This review discusses the application and performance comparison of laser-induced breakdown spectroscopy (LIBS) instrumentation in in situ measurement, as well as its practical applications in various industries. LIBS technology is important for meeting the demands of fast analysis and portability.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Biochemical Research Methods
Martin Ruzicka, Mihkel Kaljurand, Jelena Gorbatsova, Jekaterina Mazina-Sinkar
Summary: A compact and inexpensive sampler instrument for portable capillary electrophoresis was developed and evaluated for monitoring illegal drugs in human body fluids. The sampler utilizes peristaltic pumps and pinch and check valves for activating liquid flows. The study also addresses the aspects of portability, open access instrumentation, and the prospects of citizen science in relation to capillary electrophoresis.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Nanoscience & Nanotechnology
Fuyuan Zhou, Liangjing Xin, Shuya Wang, Kaiwen Chen, Dize Li, Si Wang, Yuanding Huang, Chuanhang Xu, Mengjiao Zhou, Wenjie Zhong, Huanan Wang, Tao Chen, Jinlin Song
Summary: The portable handheld bioprinter, SkinPen, allows direct deposition of therapy ink at the defective area. By introducing ultrasound and ultraviolet in a sequential programmed manner, the SkinPen achieves in situ instant gelation and enhanced bioadhesive strength. The SkinPen shows a satisfactory wound-healing effect in diabetic rats.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Medicine, General & Internal
Mohammed Elzeneini, Shishir Gupta, Yujia Li, Yi Guo, Robert Hamburger
Summary: Handheld ultrasound examination can accurately estimate right atrial pressure and has strong correlation. It has higher correlation when evaluating heart failure and has high sensitivity and specificity to accurately predict invasive right atrial pressure.
AMERICAN JOURNAL OF MEDICINE
(2022)
Article
Chemistry, Analytical
Jing Lei, Lu Shi, Wei Liu, Baoxin Li, Yan Jin
Summary: A simple and sensitive chemiluminescence method using a handheld luminometer was proposed for portable detection of cancer cells. The method utilizes a cyclic strand displacement reaction for signal amplification and achieves sensitive detection of cancer cells with a low detection limit. This provides a new option for the early diagnosis of cancers.
Article
Astronomy & Astrophysics
Deqing Ren, Christian Beck, Wenda Cao, Erik Drybread, David Faulkner Katz
Summary: Measurements of optical turbulence profile are crucial for selecting solar observational sites and characterizing existing solar observatories. Current techniques using large facility telescopes have limitations in surveys to find new sites without such telescopes. To address these issues, a new technique called Advanced Multiple Aperture Seeing Profiler (A-MASP) is proposed, which utilizes solar granulation to measure daytime optical turbulence profile. A-MASP is a portable system, capable of measuring turbulence profile up to 20 km altitude.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Medicine, Legal
Makenzie Kuehn, Kevin Bates, J. Tyler Davidson, Geraldine Monjardez
Summary: The detection of intact explosives in the field is a unique challenge, and handheld Raman instruments have become popular for their speed, reliability, and portability. However, there is limited research on the detection capabilities of these instruments for explosive compounds. This study evaluated the detection capabilities of two handheld Raman spectrometers and investigated interference from glass and plastic containers. The results showed reproducible spectra for all analytes across both instruments, with the Rigaku ResQ-CQL displaying better resolution.
FORENSIC SCIENCE INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Arka Bhowmik, Biswajoy Ghosh, Mousumi Pal, Ranjan Rashmi Paul, Jyotirmoy Chatterjee, Suman Chakraborty
Summary: Precise information on localized variations in blood circulation is crucial for noninvasive cancer diagnostics and therapeutic assessment. We report a portable noninvasive blood perfusion imager augmented with machine learning-based quantitative analytics, which effectively screens precancerous and cancerous traits in oral lesions.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biochemical Research Methods
Mihkel Kaljurand, Martin Ruzicka, Jelena Gorbatsova, Jekaterina Mazina-Sinkar
Summary: A portable capillary electrophoresis instrument was developed and tested to monitor inorganic ions in drinking water. The instrument uses pumps and valves to control liquid flows. The paper also discusses the potential of capillary electrophoresis for citizen science and highlights the contribution of the electronic and computer industry to this field.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Biochemical Research Methods
Min Zhang, Petr Smejkal, Nicolaas Bester, Johnathon C. Robertson, Mostafa A. Atia, Ashley T. Townsend, Rosanne M. Guijt, Michael C. Breadmore
Summary: This paper presents a portable and inexpensive capillary electrophoresis instrument for monitoring metal ions in remote contaminated locations. The instrument showed good performance in laboratory tests and field measurements, indicating its potential for on-site metal testing.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
Lu Shi, Qiaorong Tang, Bing Yang, Wei Liu, Baoxin Li, Chaoyong Yang, Yan Jin
Summary: A portable, cheap, sensitive, and label-free gas pressure sensor array was proposed for multiplex analysis using a handheld gas pressure meter. Principal component analysis was used to successfully distinguish eight proteins at a concentration of 10 nM within 12 minutes. The potential of the gas pressure sensor array for discriminating proteins in human serum and different types of cells was also confirmed.
ANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Aleksandr P. Litvin, Xiaoyu Zhang, Elena V. Ushakova, Andrey L. Rogach
Summary: This review provides an overview of metal halide perovskites and related optoelectronic devices, discusses the versatility and advantages of carbon nanoparticles as versatile auxiliary components, and demonstrates how carbon nanoparticles can improve the performance of perovskite-based optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Food Science & Technology
Yuanyuan Pu, Dolores Perez-Marin, Norah O'Shea, Ana Garrido-Varo
Summary: Quality and safety monitoring in the dairy industry is crucial to ensure products meet high standards. The development of miniaturised NIR spectrometers has provided a powerful capability for on-site or on-farm product measurements in the dairy sector.
Article
Chemistry, Analytical
Samaneh Ehsani, Hassan Yazdanpanah, Hadi Parastar
Summary: In this study, the feasibility of using portable NIR spectrometers and advanced data analysis techniques for screening orange juice samples and detecting adulterants was explored. The results showed high sensitivity and specificity in both calibration and prediction sets, surpassing the performance of commonly used techniques in food authentication.
MICROCHEMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Yong-Tian Zhu, Jiang-Pei Dou, Xi Zhang, Gang Zhao, Jing Guo, Leopoldo Infante
Summary: The portable adaptive optics (PAO) device is a low-cost and compact system designed for 4-meter class telescopes without an adaptive optics (AO) system, focusing on direct imaging of exoplanets. With a Strehl ratio better than 60% in H band and advanced image processing techniques, PAO can achieve high contrast imaging results.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2021)
Article
Chemistry, Analytical
Pablo Escobedo, Celia E. Ramos-Lorente, Antonio Martinez-Olmos, Miguel A. Carvajal, Mariano Ortega-Munoz, Ignacio de Orbe-Paya, Fernando Hernandez-Mateo, Francisco Santoyo-Gonzalez, Luis F. Capitan-Vallvey, Alberto J. Palma, Miguel M. Erenas
Summary: Studies have shown that monitoring pH in sweat can be an indicator of health and even potential disease diagnosis. A wearable wristband has been developed for continuous monitoring of sweat pH with applications in personal health assessment. The wristband includes a microfluidic cloth analytical device, a readout module with a digital color sensor, and a low-power Bluetooth interface for real-time data transmission to a smartphone app.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Maria Dolores Fernandez-Ramos, Fatima Mirza-Montoro, Luis Fermin Capitan-Vallvey, Isabel Maria Perez de Vargas-Sansalvador
Summary: This study introduces an NIR carbon dioxide gas sensor based on an inner filter process with the addition of an ionic liquid to enhance stability, dynamic behavior, and lifetime. The sensor with IL shows significantly improved response and recovery times, expanded measurement range, lower detection limit, and longer useful lifetime of the sensing membrane compared to the sensor without IL.
Article
Computer Science, Hardware & Architecture
Marko Andjelkovic, Aleksandar Simevski, Junchao Chen, Oliver Schrape, Zoran Stamenkovic, Milos Krstic, Stefan Ilic, Goran Ristic, Aleksandar Jaksic, Nikola Vasovic, Russell Duane, Alberto J. Palma, Antonio M. Lallena, Miguel A. Carvajal
Summary: Instruments for measuring absorbed dose and dose rate in space missions are essential. Among various radiation sensors, RADFETs have unique advantages and have been successfully used for absorbed dose measurement. We propose a design concept that allows a single RADFET to function as both absorbed dose and dose rate monitor, reducing implementation cost.
MICROPROCESSORS AND MICROSYSTEMS
(2022)
Article
Instruments & Instrumentation
Goran S. Ristic, Stefan D. Ilic, Marko S. Andjelkovic, Russell Duane, Alberto J. Palma, Antonio M. Lalena, Milos D. Krstic, Aleksandar B. Jaksic
Summary: In this study, the mechanisms responsible for trap formation during irradiation were analyzed and modeled successfully, focusing on the traps formed in the oxide and near the silicon/silicon-dioxide interface. The behavior of these traps during postirradiation annealing was also analyzed, and a new dosimetric parameter called the Golden Ratio was proposed for comparing MOS dosimeters.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Multidisciplinary Sciences
P. Escobedo, M. D. Fernandez-Ramos, N. Lopez-Ruiz, O. Moyano-Rodriguez, A. Martinez-Olmos, I. M. Perez de Vargas-Sansalvador, M. A. Carvajal, L. F. Capitan-Vallvey, A. J. Palma
Summary: This study developed a sensing platform for real-time detection of gaseous CO2 inside FFP2 facemasks. The system combines an opto-chemical sensor with a flexible, battery-less near-field-enabled tag, and includes a smartphone application for wireless powering and data processing. The platform shows potential for non-invasive, wearable health assessment and preclinical research and diagnostics.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Nuria Lopez-Ruiz, Pablo Escobedo, Isidoro Ruiz-Garcia, Miguel A. Carvajal, Alberto J. Palma, Antonio Martinez-Olmos
Summary: This study presents a BCG system for measuring heart rate, breath rate, and activity of a user in bed. The system simplifies the analog and digital processing typically required in these systems while maintaining high performance.
Article
Computer Science, Information Systems
Goran S. Ristic, Stefan D. Ilic, Sandra Veljkovic, Aleksandar S. Jevtic, Strahinja Dimitrijevic, Alberto J. Palma, Srboljub Stankovic, Marko S. Andjelkovic
Summary: The possibility of using commercial p-channel power VDMOSFETs as X-ray sensors is investigated, and the dependence of sensitivity on both gate voltage and X-ray energy is examined. The behavior of irradiated transistors during annealing at room temperature without gate polarization is also considered.
Article
Engineering, Multidisciplinary
I. Ruiz-Garcia, J. Roman-Raya, P. Escobedo, M. Andjelkovic, D. Guirado, A. J. Palma, M. A. Carvajal
Summary: The effect of temperature on dosimetric measurements is a major limitation of solid-state dosimeters. To minimize this effect, a compensation method using the diode structure itself is proposed. An electronic circuit implementing this procedure was developed, which successfully reduced the uncertainty due to thermal drift and showed good dose rate sensitivity.
Article
Chemistry, Analytical
Pablo Escobedo, Celia E. Ramos-Lorente, Ammara Ejaz, Miguel M. Erenas, Antonio Martinez-Olmos, Miguel A. Carvajal, Carlos Garcia-Nunez, Ignacio De Orbe-Paya, Luis F. Capitan-Vallvey, Alberto J. Palma
Summary: QRsens is a family of Quick Response (QR) sensing codes designed for in-situ air analysis. It uses a customized smartphone application to read both the QR code and the colorimetric sensors simultaneously. The study presents a built-in multi-sensing platform called QRsens, which can be used for affordable and real-time monitoring in different types of ambient air analysis applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Biophysics
Carmen Martin-Sierra, Mavys Tabraue Chavez, Pablo Escobedo, Victor Garcia-Cabrera, Francisco Javier Lopez-Delgado, Juan Jose Guardia-Monteagudo, Isidoro Ruiz-Garcia, Miguel M. Erenas, Rosario Maria Sanchez-Martin, Luis Fermin Capitan-Vallvey, Alberto J. Palma, Salvatore Pernagallo, Juan Jose Diaz-Mochon
Summary: The COVID-19 pandemic has emphasized the need for innovative diagnostic approaches. CoVradar, a novel colorimetric method, combines nucleic acid analysis, dynamic chemical labeling (DCL) technology, and the Spin-Tube device for detecting SARS-CoV-2 RNA in saliva samples. This method includes a fragmentation step using abasic peptide nucleic acid probes and biotinylated SMART bases for labeling and analysis. Signals are generated through recognition and incubation with a chromogenic substrate, and results are interpreted using CoVreader, a smartphone-based image processing system. CoVradar and CoVreader offer a molecular assay for SARS-CoV-2 RNA detection without the need for extraction or pre-labeling, providing advantages in time, cost, and simplicity.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Inmaculada Ortiz-Gomez, Almudena Rivadeneyra, Jose F. Salmeron, Ignacio de Orbe-Paya, Diego P. Morales, Luis Fermin Capitan-Vallvey, Alfonso Salinas-Castillo
Summary: In this study, a microfluidic paper-based analytical device (mu PAD) with an NFC tag was proposed as a portable, simple and fast colorimetric method for glutathione (GSH) determination. The method took advantage of the oxidizing property of Ag+ on 3,3';,5,5'-tetramethylbenzidine (TMB), which resulted in a blue color fading when GSH was present. By integrating electronic interfaces into the hardware of digital image capture, a smartphone was utilized for the colorimetric determination of GSH. Importantly, this new method exhibited a low detection limit of 1.0 mu M, offering high sensitivity and a simple, fast, portable and low-cost GSH determination within 20 minutes using a colorimetric signal.
Article
Chemistry, Analytical
M. D. Fernandez-Ramos, A. Moraga-Cabezas, Antonio L. Medina-Castillo, L. F. Capitan-Vallvey
Summary: Formaldehyde is a common contaminant that poses health risks in occupational and environmental atmospheres. A colorimetric sensor has been developed to measure the concentration of formaldehyde quickly and accurately. It is portable, sensitive, and suitable for resource-limited settings.
Article
Chemistry, Analytical
Mathews de O. K. Franco, Wilson J. Cardoso, Castelo B. Vilanculo, Vagner B. dos Santos, Joao Paulo B. de Almeida, Luis Fermin Capitan-Vallvey, Willian T. Suarez
Summary: The study introduces a novel and efficient method for simultaneous determination of Cu2+ and furfural in cachaca samples using digital imaging analysis, two-phase system, and chemometrics tools. The method involves reactions between furfural and aniline in an acidic medium forming a pink Schiff base and between Cu2+ and cuprizone in a basic medium forming a blue complex. Partial least squares regression and ordered predictor selection analysis were used to construct prediction models and select the most predictive variables. The developed method showed high accuracy with mean absolute errors of 0.2 mg L-1 for Cu2+ and 0.3 mg per 100 mL of anhydrous alcohol for furfural. This simple method can be easily used by cachaca producers in the manufacturing process.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Josiane Lopes de Oliveira, Willian Toito Suarez, Vagner Bezerra dos Santos, Leandro Paulo da Silva, Luis Fermin Capitan-Vallvey
Summary: In this study, a novel cotton thread-based colorimetric sensor modified by carboxymethylcellulose (CMC) and cuprizone (CPZ) with smartphone detection was developed and applied for the quantitative determination of cupric ions in water and cachaca. The method is affordable and low-cost, allowing real-time and on-field determination analyses, especially with limited financial resources. The sensor showed high precision, with a range of quantification from 1 to 12 mg L-1 and a low detection limit of 0.21 mg L-1. The recovery assays in water and cachaca samples resulted in recovery percentages ranging from 84.9% to 107%. The precision of the proposed colorimetric method was validated by comparing the results with that of flame atomic absorption spectrometry and obtaining good agreement at the 95% confidence level.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)
