Article
Electrochemistry
Yating Chen, Wei Chen, Yulan Tian, Ping Zhu, Shu Kong, Liping Du, Chunsheng Wu
Summary: In this study, a label-free electrochemical impedance aptasensor was developed for the sensitive detection of OA in shellfish. The aptasensor showed a wide linearity range and a low limit of detection for OA, as well as good selectivity towards other toxins. It also exhibited good reproducibility and stability. Real mussel samples demonstrated a good recovery rate. This simple and cost-effective sensing strategy for marine toxins could be applied in the fields of seafood safety and water quality control.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Chemistry, Analytical
Donato Calabria, Martina Zangheri, Seyedeh Rojin Shariati Pour, Ilaria Trozzi, Andrea Pace, Elisa Lazzarini, Maria Maddalena Calabretta, Mara Mirasoli, Massimo Guardigli
Summary: The presence of hidden allergens in food products has led to the urgent need for rapid and reliable analytical methods. Portable biosensors based on immunoassays and aptamers have shown promise as alternative detection methods for food allergens.
Article
Food Science & Technology
Xiaomei Wang, Chen Yang, Wei Jiang, Manyu Zhang, Ruifang Li, Yajuan Lin, Quan Wang
Summary: A rapid and quantitative immunochromatographic assay for the detection of diarrhetic shellfish poisons was developed using lanthanide fluorescent microspheres. The test strip exhibited high accuracy and sensitivity, making it suitable for rapid quantitative on-site detection of OA in seafood.
Article
Biochemical Research Methods
Changtong Wu, Daria Barkova, Natalia Komarova, Andreas Offenhaeusser, Mariia Andrianova, Ziheng Hu, Alexander Kuznetsov, Dirk Mayer
Summary: An electrochemical aptamer-based sensor has been developed for glutamate, the major excitatory neurotransmitter in the central nervous system, with high selectivity and sensitivity, showing great potential for applications in microelectrodes and in vitro as well as in vivo monitoring of neurotransmitter release.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Liubing Kong, Xinyi Wang, Chiyu Ma, Shuqi Zhou, Xianyou Sun, Deming Jiang, Tianxing Wang, Hao Wan, Ping Wang
Summary: A stable colorimetric aptasensor based on tyrosine-capped gold nanoparticles (Tyr-AuNPs) was developed for label-free detection of marine toxins. The Tyr-AuNPs showed better stability compared to citrate-capped AuNPs and exhibited robust interactions with PbTx-2. The colorimetric aptasensors for PbTx-2 and OA demonstrated a linear range of 0.05-4 ppm and detection limits of 2.25 ppb and 5.19 ppb, respectively.
Article
Chemistry, Analytical
Wenchong Shan, Jiefang Sun, Runqing Liu, Wentao Xu, Bing Shao
Summary: A highly sensitive fluorescent assay for detecting okadaic acid (OA) in seafood was developed using a duplexed aptamer-isothermal amplification-based nucleic acid CuNP (DAIA-CuNP) sensor. This sensor achieved ultrahigh-sensitivity detection of OA with a limit of detection of 1.1 ng/L and a linear range from 1.0 ng/L to 50.0 µg/L in shellfish extract. The method is expected to be compatible with a handheld fluorescence reader for field detection needs.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Olga D. D. Hendrickson, Elena A. A. Zvereva, Vasily G. G. Panferov, Olga N. N. Solopova, Anatoly V. V. Zherdev, Peter G. G. Sveshnikov, Boris B. B. Dzantiev
Summary: This study developed a lateral flow immunoassay (LFIA) to detect okadaic acid (OA). The LFIA utilized bimetallic core@shell Au@Pt nanoparticles and newly obtained anti-OA monoclonal antibodies to enhance band coloration on test strips, resulting in increased sensitivity. The LFIA assay could detect concentrations of 0.8-6.8 ng/mL with a limit of detection (LOD) of 0.5 ng/mL. The assay was rapid, lasting only 20 minutes, and had a simple sample preparation procedure applicable to seawater, river water, and fish samples.
Review
Food Science & Technology
Liping Hong, Mingfei Pan, Xiaoqian Xie, Kaixin Liu, Jingying Yang, Shan Wang, Shuo Wang
Summary: Food allergies have a significant impact on quality of life and can even be life-threatening, with no effective cure currently available. Avoiding allergenic foods remains the best prevention method. Development of rapid, accurate, sensitive, and reliable analysis methods, such as aptamer-based fluorescence sensors, is crucial for detecting food allergens effectively. This article provides a comprehensive review of major allergens in animal and plant foods, and summarizes the principles and applications of aptamer-based fluorescence biosensors, offering strategies for rapid and sensitive allergen detection in food matrices.
Article
Engineering, Environmental
Clare Mills, Michael J. Dillon, Prabir Kumar Kulabhusan, Diana Senovilla-Herrero, Katrina Campbell
Summary: A multiplex lateral flow immunoassay has been developed to detect marine biotoxins, with specific antibodies for each toxin group. The assay is capable of accurately detecting okadaic acid, saxitoxin, and domoic acid within EU regulatory limits. It offers a simple and portable solution for toxin screening in shellfish.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Olga D. Hendrickson, Liliya I. Mukhametova, Elena A. Zvereva, Anatoly V. Zherdev, Sergei A. Eremin
Summary: A homogeneous fluorescence polarization immunoassay (FPIA) was developed for the detection of hazardous aquatic toxin okadaic acid (OA) in environmental waters. The FPIA showed a limit of OA detection of 0.08 ng/mL (0.1 nM) and a working range of 0.4-72.5 ng/mL (0.5-90 nM). The method was successfully applied for the determination of OA in river water and seawater samples without the need for sample preparation.
Correction
Chemistry, Analytical
Ana Castanheira, Marilia Barreiros dos Santos, Laura Rodriguez-Lorenzo, Raquel Queiros, Begona Espina
Summary: The study introduces a novel microfluidic system for sensitive and cost-effective detection of okadaic acid in mussels.
Article
Environmental Sciences
Yuan Qin, Jiayu Li, Jiani Kuang, Sicheng Shen, Jingwen Jiang, Zhi Zhang, Chenhao Zhao, Xiumei Zhou, Biao Huang, Bingnan Han
Summary: This study established a highly sensitive OA detection method using TRFIA, which showed good correlation with HPLC results and exceeded the EU or US standards for shellfish toxin detection.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Zhuohao Xie, Peng Li, Haonan Zhan, Liuyan Zhuang, Sijian Tao, Liehua Deng, Jiahao Huang
Summary: An allosterically modulated G-quadruplex-integrated aptamer is designed for efficient and accurate detection of melamine in dairy products. The method is label-free, turn-on, low-cost, and time-efficient, with high specificity and a low detection limit. This approach can be easily manipulated and provides ultra-sensitive detection, making it useful in the field of food safety, biomedical engineering, and clinical diagnosis.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Review
Chemistry, Analytical
Yang Song, Weiqiang Li, Hengyi Xu
Summary: Foodborne pathogens pose a significant threat to human health, and traditional detection methods are limited. Therefore, the development of a simple, rapid, efficient, and low-cost aptasensor detection method is urgently needed.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Khalid E. Alzahrani, Mahmoud Al-Gawati, Abdulaziz K. Assaifan, Abdullah Alodhayb, Khalid Alotaibi, Abdullah Alswieleh, Hamad Albrithen, Amal F. Alanazi
Summary: This study presents a novel approach based on microcantilever for measuring the level of vitamin D, using Bruno aptamer as a sensing layer. By measuring the changes in microcantilever deflection and frequency, the vitamin D concentration can be accurately detected with high selectivity.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Optics
Yong Su, Qingchuan Zhang, Zheng Fang, Yaru Wang, Yang Liu, Shangquan Wu
OPTICS AND LASERS IN ENGINEERING
(2019)
Article
Instruments & Instrumentation
Shangquan Wu, Yingying Guo, Wanjun Wang, Jie Zhou, Qingchuan Zhang
REVIEW OF SCIENTIFIC INSTRUMENTS
(2019)
Article
Optics
Tan Xu, Shangquan Wu, Zhaoxiang Jiang, Xiaoping Wu, Qingchuan Zhang
Article
Optics
Tan Xu, Shangouan Wu, Zhaoxiang Jiang, Xiaoping Wu, Qingchuan Zhang
Article
Optics
Yong Su, Zeren Gao, Han Tu, Yaru Wang, Yang Liu, Zheng Fang, Qingchuan Zhang, Shangquan Wu
OPTICS AND LASERS IN ENGINEERING
(2020)
Article
Energy & Fuels
Li Lao, Shangquan Wu, Qingchuan Zhang
Summary: A novel self-adaptive fast charging protocol for cylindrical lithium-ion batteries is proposed in this study, which adjusts the charging current based on battery properties to improve cycle life and reduce charging time. Results show that the battery using the new protocol maintains good capacity and avoids lithium deposition on the anode.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Yongman Liu, Jianye Wang, Yong Su, Xiaohai Xu, Hong Liu, Kainan Mei, Shihai Lan, Shubo Zhang, Xiaoping Wu, Yunxia Cao, Qingchuan Zhang, Shangquan Wu
Summary: The mechanical force between cells and the extracellular microenvironment is crucial in physiological processes, especially during mitosis. Research shows that mitotic cells with high concentrations of PTX exert a larger force due to changes in the structure and number of microtubules.
Article
Chemistry, Physical
Depeng Rao, Kainan Mei, Tianhao Yan, Yu Wang, Wenjie Wu, Ye Chen, Jianye Wang, Qingchuan Zhang, Shangquan Wu
Summary: A novel microcantilever immunosensor using nanobodies as receptors was developed for early cancer diagnosis, achieving three orders of magnitude higher sensitivity in detecting picomolar concentrations of tumor markers compared to conventional methods. The study also revealed inactivation of nanobodies on sensor interfaces when using macromolecule blocking reagents, with implications for the construction of high-performance immuno-surfaces.
Article
Chemistry, Physical
Yongpei Peng, Junhui Zhang, Weiwei Xue, Wenjie Wu, Yu Wang, Kainan Mei, Ye Chen, Depeng Rao, Tianhao Yan, Jianye Wang, Yunxia Cao, Shangquan Wu, Qingchuan Zhang
Summary: This study investigates the nanomechanical vibrations of oocytes at different developmental stages and reveals the characteristics of these vibrations, which are influenced by the cytoskeleton and mitochondrial distribution. The findings provide a new perspective for clinical quality assessment and basic research of oocytes, contributing to the advancement of life science.
Article
Chemistry, Physical
Yu Wang, Tianhao Yan, Kainan Mei, Depeng Rao, Wenjie Wu, Ye Chen, Yongpei Peng, Jianye Wang, Shangquan Wu, Qingchuan Zhang
Summary: This study developed an ultrasensitive nanomechanical method based on peptide nucleic acid for the detection of SARS-CoV-2 RNA. The method has a low detection limit and can accurately diagnose COVID-19 patients, making it an important tool for early diagnosis and broad detection.
Article
Chemistry, Physical
Yongpei Peng, Junhui Zhang, Weiwei Xue, Wenjie Wu, Yu Wang, Kainan Mei, Ye Chen, Depeng Rao, Tianhao Yan, Jianye Wang, Yunxia Cao, Shangquan Wu, Qingchuan Zhang
Summary: This study investigates oocytes from a mechanical perspective and characterizes their life activities through nanomechanical vibrations. The findings reveal significant nanomechanical vibrations in oocytes at different developmental stages, which are caused by the cytoskeleton and the distribution of mitochondria.
Article
Optics
Zhaoxiang Jiang, Qingchuan Zhang, Shangquan Wu, Tan Xu, Yong Su, Chuanbiao Bai
OPTICS AND LASERS IN ENGINEERING
(2020)
Article
Optics
Tan Xu, Qingchuan Zhang, Shangquan Wu, Zhaoxiang Jiang, Xiaoping Wu
OPTICS AND LASERS IN ENGINEERING
(2020)
Article
Electrochemistry
Li Lao, Yong Su, Qingchuan Zhang, Shangquan Wu
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Analytical
Michel Rocha Baqueta, Augusto Cesar Costa-Santos, Ana Paula Rebellato, Gisele Marcondes Luz, Juliana Azevedo Lima Pallone, Federico Marini, Alexsandro Lara Teixeira, Douglas N. Rutledge, Patricia Valderrama
Summary: This study reports the essential element composition of new Brazilian Canephora coffees and applies chemometric tools for analysis. The results demonstrate the suitability of this method for origin and species discrimination based on the inorganic fraction of coffee.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mengjie Li, Jiapeng Wang, You Zhou, Yang Chen, Lingying Xia
Summary: A novel photoelectrochemical biosensor based on gold nanoparticles and specific structures was developed for highly sensitive detection of mercury ion. The multiple sandwich structures hindered electron supply and light harvesting, resulting in a weakened PEC signal, while the specific structures extinguished the PEC signal, enabling quantitative detection of Hg2+. The sensor exhibited high selectivity and stability, with potential applications in environmental detection, biological analysis, and medical research.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mohamed A. Korany, Rasha M. Youssef, Marwa A. A. Ragab, Mostafa A. Afify
Summary: A stability-indicating fit-for-purpose method was developed for the determination of HC, TL, and PS in syrup dosage form. The method successfully separated CL from THY and quantified the analytes using HPLC-DAD. The robustness of the method was assessed through statistical analysis and self-validation.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Lingling Lin, Minyu Li, Ping Li, Chenqing Ye, Huanglong Zhuang, Shaohuang Weng, Feng Chen
Summary: This study developed a highly sensitive and selective electrochemical sensor for simultaneous detection of dopamine and uric acid. The sensor exhibited excellent anti-interference and stability, and could accurately measure dopamine and uric acid in human urine samples.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Peifang Chen, Caiyun Jiang, Zhouping Wang, Hong-zhen Lian, Xiaoyuan Ma
Summary: In this study, a high-performance SERS-active aptasensor was successfully developed for the quantitative analysis of AFB1 in cereal grains, which is of great significance in the field of food safety.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
E. Abas, C. Marina-Montes, C. Perez-Marin, J. Puimedon, J. Anzano
Summary: This study conducted a comprehensive measurement of natural and anthropogenic radionuclides in soil, water, and air in different locations around Deception Island in Antarctica. The results revealed significant levels of 210Pb and anthropogenic 137Cs in soil samples near old human settlements and facilities, as well as detectable levels of 137Cs and 60Co in water samples from old hunting areas. The findings also suggested potential resuspension processes based on higher-than-expected air quality results.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Joao Franciso Allochio, Nayara A. dos Santos, Nathalia dos S. Conceicao, Clara S. D. Baptista, Keyller B. Borges, Valdemar Lacerda Jr, Wanderson Roma
Summary: This study developed a fiber spray ionization mass spectrometry (FSI-MS) method, which shows great potential in detecting illicit drugs. Compared with paper spray ionization mass spectrometry (PSI-MS), FSI-MS demonstrates higher sensitivity in COC detection.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Dina A. Ahmed, Ola G. Hussein, Mamdouh R. Rezk, Mohamed Abdelkawy, Yasmin Rostom
Summary: The main goal of this study was to develop two green chromatographic techniques, HPLC and TLC, for the determination of alcaftadine (ALF) in pharmaceutical formulation and biological samples. The developed HPLC technique showed high efficiency and minimal environmental impact, successfully identifying ALF in the presence of its degradate. The TLC method provided a stability indicating study for ALF and was determined to be safe, green, and eco-friendly.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Abdullah Taner Bisgin
Summary: A green, speedy, and handy method for separation and determination of four commonly used food colorants was established using vortex assisted sequential-simultaneous liquid phase micro-extraction (VA-SS-LPME). The method does not require any instrumental chromatographic techniques. The procedure includes sequential separation steps using different extractants and simultaneous UV-vis spectrophotometric determination steps. The method is environmentally friendly and applicable for determination of colorants in food and pharmaceuticals.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Yifan Zhang, Tong Zhang, Wenjing Ba, Li Liu, Yuan Rao, Xiaodan Zhang, Hanhan Zhang, Xiu Jin
Summary: This paper proposes a novel spectral transfer modelling method based on neural network architecture searching for the asymptomatic prediction of Akizuki pear cork spot disorder. The experiments show that the model by this method is more effective, achieving an accuracy of 82.61%.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
P. K. Fathima Anjila, G. R. Tharani, Anand Sundaramoorthy, Venkat Kumar Shanmugam, Karthikeyan Subramani, Shanmugavel Chinnathambi, Ganesh N. Pandian, Vimala Raghavan, Andrews Nirmala Grace, Singaravelu Ganesan, Mangaiyarkarasi Rajendiran
Summary: This work proposes a rapid and sensitive spectroscopic method for detecting melamine in food products using rare-earth Terbium-doped Graphene Quantum Dots (Tb-GQDs) synthesized by microwave and simple chemical conjugation methods. The synthesized Tb-GQDs show a spherical shape with a size of approximately 6 nm and a quantum yield of 52%. The maximum detection limit for melamine concentration in milk and milk products is found to be 0.31 μM. The dual emitting Tb-GQDs provide a sensitive and effective platform for real-time detection of melamine in food samples, particularly in milk, and show promising potential in the food industry.
MICROCHEMICAL JOURNAL
(2024)
Review
Chemistry, Analytical
Piyush Dey, Mandeep Kaur, Akhil Khajuria, Dilmeet Kaur, Manpreet Singh, Hema Kumari Alajangi, Neha Singla, Gurpal Singh, Ravi Pratap Barnwal
Summary: Environmental issues, such as the uncontrolled release of dangerous pollutants, have significant impacts on human health. Traditional methods for detecting pollutants require specialized personnel and equipment, but nanotechnology has improved the performance of biosensors. This article discusses the use of nanotechnology in pollutant detection and the associated techniques.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Sa Dong, Qiuyun Shi, Lingjun Guan, Yulong Wang, Pengyan Liu, Cunzheng Zhang, Jianguo Feng
Summary: In this study, a highly sensitive indirect competitive chemiluminescence enzyme immunoassay (icCLEIA) method was developed for the determination of sodium pentachlorophenolate (PCP-Na) and its metabolite pentachlorophenol (PCP). The method showed high specificity and affinity with a detection limit of 0.0032 ng/mL for PCP-Na and 0.0192 ng/mL for PCP. The method had no cross reaction with other chlorophenols compounds except for PCP. The average recoveries in chicken, pork and fish samples were 81.3-105.8% with low coefficient of variation (CV).
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Palaniappan Ilayaraja, Murugan Manivannan, Paramasivam Parthiban
Summary: Nirmatrelvir, an antiviral drug used for the treatment of COVID-19, has been recommended by the World Health Organization. We developed an optimized analytical method for the quantification of Nirmatrelvir and its products, with high sensitivity and a wide linear range. The method also meets the requirements for greenness evaluation.
MICROCHEMICAL JOURNAL
(2024)