Article
Oceanography
Jianrong Lin
Summary: A new spectrophotometric method based on liquid waveguide capillary cell has been developed for enhanced detection of nanomolar iodate concentrations. This method has a low detection limit, high precision, and good recovery rates in a wide range of concentrations.
ACTA OCEANOLOGICA SINICA
(2022)
Article
Chemistry, Analytical
Ting Wang, Yongming Huang, Jin Xu, Weidong Guo, Dongxing Yuan
Summary: An automated and sensitive colorimetric method was developed for online determination of trace sulfide concentrations in estuarine surface waters. The method showed high sensitivity, wide linear range, low detection limit, low reagent consumption, and high sample throughput rates, making it advantageous for practical applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Ting Wang, Yongming Huang, Yong Zhu, Jin Xu, Dewang Li, Bin Wang, Weidong Guo, Dongxing Yuan
Summary: By utilizing reverse flow injection analysis and a liquid waveguide capillary cell, a sensitive and automatic catalytic kinetic spectrophotometric method for monitoring Cu(II) concentrations in estuarine and coastal waters was established. The method showed high sensitivity and selectivity, as well as good recovery rates and reliability after optimization.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Wasin Somboot, Jaroon Jakmunee, Tinakorn Kanyanee
Summary: A cost-effective long-path absorption liquid core waveguide (LCW) device, fabricated from a typical Teflon tube and using high refractive index (RI) medium of acid, was successfully applied in a flow injection-gas diffusion system for sensitive determination of sulfide via methylene blue (MB) chemistry. The device achieved a detection limit of 0.13 μmol L-1 without preconcentration, and showed good recovery rates of 88.7 - 103% in canal water samples.
ANALYTICAL SCIENCES
(2021)
Article
Spectroscopy
Sangram B. Kharade, Rajvardhan K. Chougale, Umesh B. Barache, Kallappa R. Sanadi, Kishan C. Rathod, Shashikant H. Gaikwad, Yong-Chein Ling, Mansing A. Anuse, Ganesh S. Kamble
Summary: A novel spectrophotometric reagent PTPT was synthesized for liquid-liquid extraction and determination of copper(II). It effectively forms stable complex with copper(II) in basic medium and with the presence of pyridine. The method showed good stability and selectivity for copper(II) determination.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Multidisciplinary
Mustafa Soylak, Hassan Elzain Hassan Ahmed, Mansoor Khan
Summary: Proper extraction, preconcentration and quantification of Hg2+ in water, hair and fish samples are highly important due to its high toxicity. This study focuses on the preconcentration of Hg2+ using SHS-LLME and its quantification by UV-visible spectrophotometry. The optimized conditions include pH 8, 400 μL extraction solvent, 20 μg of 5-Br-PADAP, and a maximum sample volume of 20 mL.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Multidisciplinary
Inas A. Abdallah, Sherin F. Hammad, Alaa Bedair, Fotouh R. Mansour
Summary: The study developed a salting-out induced homogenous liquid-liquid microextraction method for preparation and pre-concentration of daclatasvir in human plasma, which was then measured by second derivative spectrophotometry. The method was found to be linear, accurate, precise, simple, rapid, cost-effective, and environmentally friendly.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Applied
Malek Hassan, Furkan Uzcan, Usama Alshana, Mustafa Soylak
Summary: A novel method combining switchable-hydrophilicity liquid-liquid microextraction and magnetic nanoparticle-based dispersive solid-phase microextraction was proposed for the determination of erythrosine using UV/Vis spectrophotometry. The method showed excellent analytical performance with high sensitivity, low detection limits, and good reproducibility, making it suitable for the extraction and determination of erythrosine in food and consumer products.
Article
Chemistry, Applied
Mustafa Soylak, Metin Agirbas, Erkan Yilmaz
Summary: A novel and green method using supramolecular solvent liquid phase microextraction was developed for enrichment of maneb, successfully applied in the analysis of maneb content in water and food samples.
Article
Chemistry, Analytical
Felisberto Goncalves Santos, Fernando Maya, Boaventura Freire dos Reis, Elias Ayres Guidetti Zagatto, Victor Cerda
Summary: A lab-in-syringe flow system using a solvent lighter than water for dispersive liquid-liquid micro-extraction is proposed for the spectrophotometric determination of lead in industrial residual waters. Xylene is selected as the alternative extracting solvent, providing a cleaner and more environmentally friendly approach. The method shows a high enrichment factor, a wide linear dynamic range, and a low detection limit, making it suitable for high sample throughput. Additionally, the proposed procedure has a small residue volume.
Article
Chemistry, Analytical
Mansoor Khan, Mustafa Soylak
Summary: A spectrophotometric method based on deep eutectic solvent-based liquid-liquid microextraction (DES-LLME) has been developed for the quantification of Hg (II) in water, hair, and fish. The optimized method showed low limits of detection and quantification, high preconcentration and enhancement factors, and good reproducibility. The reliability of the method was confirmed through the analysis of certified reference materials and real samples.
ANALYTICAL LETTERS
(2023)
Article
Environmental Sciences
A. Bayati-Comitaki, M. M. Zahedi
Summary: This research introduces an easy, inexpensive, and fast spectrophotometric method for measuring boron in water samples. By optimizing the reaction conditions and using a flow-based analysis, the study achieved accurate measurement of boron content.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Malek Hassan, Furkan Uzcan, Syed Nasrullah Shah, Usama Alshana, Mustafa Soylak
Summary: The combination of switchable-hydrophilicity solvent-liquid-liquid microextraction (SHS-LLME) and dispersive solid-phase microextraction (DSPME) showed efficient preconcentration and determination of quercetin, with high recovery rates and good repeatability. The proposed method is superior in terms of greenness, rapidness, simplicity, and low capital cost, making it a promising technique for sample cleanup and analysis.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Analytical
Kamil Gurmen, Ugur Sahin, Erkan Yilmaz, Mustafa Soylak, Serkan Sahan
Summary: Antioxidants, such as curcumin, can transform free radicals into more stable chemical structures. In this study, a salt-supported homogenous liquid-phase microextraction method was developed for the preconcentration and spectrophotometric determination of curcumin. The method showed unaffected performance for curcumin across different pH values.
ANALYTICAL LETTERS
(2023)
Article
Spectroscopy
Marco M. Z. Sharkawi, Norhan R. Mohamed, Mohammed T. El-Saadi, Noha H. Amin
Summary: Five simple and accurate spectrophotometric methods were developed for the simultaneous determination of AML and CEL in the presence of the harmful impurity MAP in their ternary mixture without prior separation. These methods showed high sensitivity and low LOD values, and were validated according to ICH guidelines. The developed methods were found to be suitable for quality control analysis of AML and CEL with no significant difference compared to the reported HPLC method.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Rafael C. Castro, Ricardo N. M. J. Pascoa, M. Lucia M. F. S. Saraiva, Joao L. M. Santos, David S. M. Ribeiro
Summary: A sensing platform combining carbon dots and thiomalic acid-capped AgInS2 quantum dots was developed for the determination of ibandronic acid. The platform showed efficient PL quenching of AgInS2 quantum dots in the presence of IBAN while the PL of carbon dots remained unaffected, providing a self-reference fluorophore. A visual sensing approach based on RGB images was proposed for rapid IBAN screening.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Medical Laboratory Technology
Teresa Lapa, Ricardo N. M. J. Pascoa, Filipe Coimbra, Pedro S. Gomes
Summary: This study evaluated the effectiveness of mid-infrared spectroscopy in identifying the reticular form of OLP. The results showed that MIR spectroscopy was able to discriminate between OLP patients and controls. The findings suggest that MIR spectroscopy could be an innovative, non-invasive, low cost, and sensitive technique for identifying OLP.
CLINICA CHIMICA ACTA
(2022)
Article
Food Science & Technology
Rafael C. Castro, David S. M. Ribeiro, Joao L. M. Santos, Ricardo N. M. J. Pascoa
Summary: Raman spectroscopy was applied for real-time monitoring of the quality of edible oils exposed to high temperatures. The study focused on evaluating peroxide values, acid values, and total polar compounds (TPC) to assess oil quality. The developed PLS models showed high accuracy for determining acidity and TPC, while the model for peroxide values was more suitable for screening purposes.
Article
Chemistry, Analytical
Elisabet Martin-Tornero, Isabel Duran Martin-Meras, Anunciacion Espinosa Mansilla, Joao Almeida Lopes, Ricardo Nuno Mendes de Jorge Pascoa
Summary: This study uses auto fluorescence of grapevine leaves to discriminate vineyards from different geographical regions and quantify total polyphenols and chlorophylls. Fluorescence spectroscopy with PARAFAC analysis is used to extract useful information and perform linear discriminant analysis for classification. Unfolded partial least squares and N-way partial least squares are used for the quantification of total polyphenols and chlorophylls. The results show that these methods can accurately discriminate vineyards from different regions and determine the content of total polyphenols and chlorophylls.
MICROCHEMICAL JOURNAL
(2022)
Article
Automation & Control Systems
Sandia Machado, Luisa Barreiros, Antonio R. Graca, Ricardo N. M. J. Pascoa, Marcela A. Segundo, Joao A. Lopes
Summary: In metabolomics, the complexity of data generated by untargeted approaches poses challenges in extracting meaningful information from raw data. Existing tools may overprocess the data, leading to the elimination of useful information. This research proposes a data mining tool for metabolomics data, specifically LC-MS, to enhance the extraction of meaningful chemical information. The algorithm performs well in identifying chemically relevant features and reduces the need for user-defined parameters when compared to existing software.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2023)
Article
Chemistry, Analytical
Rafael C. Castro, Ricardo N. M. J. Pascoa, M. Lucia M. F. S. Saraiva, Rui A. S. Lapa, Jose O. Fernandes, Sara C. Cunha, Joao L. M. Santos, David S. M. Ribeiro
Summary: Upon exposure to Reactive Oxygen Species (ROS), Aflatoxin B1 forms a highly fluorescent derivative, which was utilized for the determination of AFB1 in food samples. Cd-free AgInS2 ternary quantum dots were used as ROS generators, and kinetic photoluminescence data (PL) was collected throughout AFB1 photocatalysis to accurately determine AFB1 even in the presence of unknown interfering species not included in the calibration set. This approach allows the quantification of AFB1 in rice samples in compliance with EU regulations.
MICROCHEMICAL JOURNAL
(2023)
Article
Spectroscopy
Rafael C. Castro, David S. M. Ribeiro, Joao L. M. Santos, Claudia Nunes, Salette Reis, Ricardo N. M. J. Pascoa
Summary: A fast, simple, and reliable method for determination of metformin was developed by coupling surface-enhanced Raman spectroscopy (SERS) with chemometric methods. The method utilized a portable Raman spectrometer and citrate stabilized gold nanoparticles (AuNPs) as substrate, resulting in improved sensitivity. Principal component analysis (PCA) and partial least squares (PLS) regression were used for data analysis. Optimization of the PLS model led to RMSECV and R2CV values of 0.42 mg/L and 0.94, respectively. Validation of the optimized PLS regression model with commercial pharmaceutical samples yielded good results in terms of R2P (0.97), RE (4.54%), and analytical sensitivity (2.13 mg/L).
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Food Science & Technology
Mariem Khouja, Ricardo N. M. J. Pascoa, Diana Melo, Anabela S. G. Costa, M. Antonia Nunes, Abdelhamid Khaldi, Chokri Messaoud, M. Beatriz P. P. Oliveira, Rita C. Alves
Summary: This study investigated the feasibility of using near-infrared spectroscopy to analyze the lipid content and profile of pine seeds, as well as to discriminate between different pine species. Different chemometric models were applied, and the results showed that near-infrared spectroscopy is a suitable analytical technique for lipid analysis and species discrimination of pine seeds.
Article
Chemistry, Analytical
Juliana I. S. Aguiar, Susana O. Ribeiro, Andreia Leite, Maria Rangel, Antonio O. S. S. Rangel, Raquel B. R. Mesquita
Summary: This study developed an iron sensor based on a microfluidic paper-based technique for quantification of iron in natural waters. A water-soluble naphthalene-3-hydroxy-4-pyridione ligand was used as a colour reagent to form an orange complex with iron. The microfluidic paper-based analytical device (μPAD) assembly was optimized, and under the optimal conditions, a linear correlation was obtained within the range of 0.25-2.00 mg/L of iron.
Article
Food Science & Technology
Rafael C. Castro, David S. M. Ribeiro, Joao L. M. Santos, Ricardo N. M. J. Pascoa
Summary: This study proposes a method based on NIR spectroscopy and chemometric tools for the authentication, identification and quantification of cinnamon adulterants. The results reveal that NIR spectroscopy can accurately authenticate, identify and quantify adulterants in cinnamon samples in a rapid and low-cost manner.
Article
Chemistry, Analytical
Joana L. A. Miranda, Raquel B. R. Mesquita, Andreia Leite, Andre M. N. Silva, Maria Rangel, Antonio O. S. S. Rangel
Summary: Non-transferrin-bound iron (NTBI) is a group of toxic iron forms that circulate in conditions with iron overload or dysregulation of iron metabolism. The quantification of NTBI is still lacking a standardized assay due to high variability among methods and laboratories. This study developed a micro sequential injection lab-on-valve (mu SI-LOV) method using solid phase spectrophotometry (SPS) to quantify NTBI in serum samples. The proposed method achieved a dynamic concentration range of 1.62-7.16 μmol L^-1 iron (III), with a limit of detection of 0.49 μmol L^-1 and a limit of quantification of 1.62 μmol L^-1.
Article
Forestry
Liliana Rego, Sandra Mota, Ana Torres, Claudia Pinto, Sara Cravo, Joana Rocha e Silva, Ricardo N. M. J. Pascoa, Agostinho Almeida, Filipa Amaro, Paula Guedes Pinho, Honorina Cidade, Jose Paulo Silva, Jose Manuel Sousa Lobo, Isabel Filipa Almeida
Summary: This study aimed to explore cork powders as sustainable sources of value-added compounds. Two types of cork powder were characterized, and their antioxidant and phenolic content were evaluated. The results showed that the fine cork powder was more suitable for industrial applications, with higher antioxidant activity and phenolic compounds.
Article
Chemistry, Analytical
Rafael C. Castro, Ricardo N. M. J. Pascoa, M. Lucia M. F. S. Saraiva, Joao L. M. Santos, David S. M. Ribeiro
Summary: The combination of multiple quantum dots provides a promising sensing scheme for determining specific analytes. In this study, a kinetic fluorometric method using dual CdTe/AgInS2 quantum dots was developed for acetylsalicylic acid determination. The obtained data were processed using different chemometric methods, including unfolded partial least squares, N-way partial least squares, multilayer feed-forward neural networks, and radial basis function neural networks.
Article
Food Science & Technology
Rafael. C. Castro, Ricardo N. M. J. Pascoa, M. Lucia M. F. S. Saraiva, Sara. C. Cunha, Joao L. M. Santos, David S. M. Ribeiro
Summary: In this study, a new method was developed for the detection of histamine in food using carbon dots and MPA-capped AgInS2 quantum dots as fluorescent probes. The method utilized a ratiometric sensing platform coupled with chemometrics for kinetic fluorometric determination. The results showed that the N-PLS method yielded the best results, and a 5-minute kinetic spectral acquisition was sufficient for reliable measurements. The developed method was evaluated using spiked samples of different complex matrices, and the results confirmed its suitability, accuracy, and effectiveness. The method proved to be simpler and faster than reference procedures.
Article
Chemistry, Analytical
Maria M. P. Melo, Ana Machado, Antonio O. S. S. Rangel, Raquel B. R. Mesquita
Summary: A new microfluidic paper-based analytical device (muPAD) was developed for accurate creatinine quantification in urine samples. The paper device is accessible, portable, low-cost, and environmentally friendly. It uses a colorimetric reaction and digital image scanning for quantification and achieves similar results to traditional batch-wise procedures.
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)
