Article
Chemistry, Analytical
Yongfeng Chen, Yufeng Sun, Geoffrey I. N. Waterhouse, Huiju Gao, Zhixiang Xu
Summary: In this study, a highly selective molecularly imprinted gel (MIG)-based electrochemical sensor was developed for simultaneous detection of vanillin (VAN) and tartrazine (TZ) in foods. The sensor showed a linear response over the concentration range of 0.03-125 mu M, with detection limits of 0.006 mu M and 0.005 mu M for VAN and TZ, respectively. The developed sensor demonstrated excellent recoveries (92.2%-109.7%) when applied to analyze liqueur, white vinegar, and vanilla ice cream samples spiked with VAN and TZ.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Review
Chemistry, Physical
Taisiia Sikolenko, Elias Bou-Maroun, Thomas Karbowiak
Summary: This review introduces the methods and techniques of electrode modification using molecularly imprinted silica (MIS), discusses the advantages and weaknesses of different deposition routes, and provides recommendations for achieving optimal analytical performance.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Analytical
Ling Jia, Yue Mao, Siqi Zhang, Hong Li, Ming Qian, Dongbo Liu, Bin Qi
Summary: An electrochemical switch sensor for ephedrine hydrochloride (EPh) determination was developed based on complex reactions and molecular imprinting (MIP) technique. The sensor showed a wide working concentration range, low detection limit, fast response time, and strong anti-interference ability. Results from spiked saliva samples suggest potential applications of the sensor.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Fatemeh Rezaei, Narges Ashraf, Gholam Hossein Zohuri
Summary: The research presents a sol-gel approach for synthesizing hydrophilic core-shell L-tryptophan imprinted polysilicate. The nanocomposite was characterized using various techniques and used to construct an electrochemical sensor for Trp detection. The sensor showed a linear calibration plot and low LOD and LOQ values. The applicability of the sensor was demonstrated in the analysis of real samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Narges Shaabani, Nora W. C. Chan, Abebaw B. Jemere
Summary: An electrochemical sensor for selective and sensitive detection of the drug naloxone was developed using molecular imprinting and sol-gel techniques. The sensor showed excellent linear response and detection limit for NLX, as well as good selectivity and reproducibility. It demonstrated successful application in measuring NLX in synthetic urine samples with high recoveries.
Review
Biochemistry & Molecular Biology
Marie Elhachem, Philippe Cayot, Maher Abboud, Nicolas Louka, Richard G. Maroun, Elias Bou-Maroun
Summary: This review emphasizes the importance of developing a technique for rapid detection of antioxidants based on molecular imprinting techniques. It covers the progress in antioxidants characterization, molecular imprinting, and electrochemistry, and highlights the significance of combining these areas for evaluating antioxidants in various mediums with selectivity and specificity. The growing prominence of antioxidants in various sectors calls for the integration of these three areas, potentially leading to innovative industrial applications with satisfactory results for manufacturers and consumers alike.
Article
Chemistry, Analytical
Sevgi Guney, Taner Arslan, Serhat Yanik, Orhan Guney
Summary: An electrochemical sensing platform based on a composite material, MIP-GO, was developed for the selective and sensitive analysis of amoxicillin. The MIP-GO composite was deposited as a thin film on a glassy carbon electrode and showed a linear response for the determination of amoxicillin in a concentration range from 5.0x10(-10) to 9.1x10(-7) M, with a detection limit of 2.94x10(-10) M.
Article
Chemistry, Applied
Maosai Zhang, Baojin Zhang, Tianbao Li, Xinhua Zhu, Wenchuan Guo
Summary: This study proposes a cost-effective and highly sensitive magnetic molecularly imprinted particles (MMIPs) electrochemical sensor for the indirect detection of three antibiotics. The sensor shows high selectivity and sensitivity, and can be applied for the detection of antibiotics in milk samples.
Article
Chemistry, Analytical
Zhenke Qi, Ruiqin Lu, Shiyu Wang, Cheng Xiang, Chuangjie Xie, Manni Zheng, Xingguo Tian, Xiaoyan Xu
Summary: A novel fluorescence sensor, MIP@CODs@SiO2, was developed for selective and sensitive detection of MC-LR, showing high sensitivity, stability, and potential for practical applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Applied
Marziyeh Poshteh Shirani, Behzad Rezaei, Ali A. Ensafi, Mohammad Ramezani
Summary: A modern optical sensor based on environmentally friendly molecularly imprinted polymer coated on silica-carbon quantum dots was developed for rapid and efficient detection of the common chemical contaminant indoxacarb in environmental and biological samples. The sensor showed a linear relationship between fluorescence quenching effect and increased indoxacarb concentration in the range of 4-102 nM, with a detection limit of 1 nM and good precision. The applicability of the sensor for indoxacarb quantification in samples was verified with high recoveries and low relative standard deviation.
Article
Environmental Sciences
Xian Liu, Xiaoya Li, Lei Zhu, Xun Wang
Summary: The research shows that MI-Ag-TiO2 prepared by one-step molecular imprinting method has excellent photocatalytic performance, with high degradation efficiency for ethyl paraben, and higher selectivity compared to other catalysts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Haixiu Wang, Zufei Feng, Fupeng Lin, Yan Zhao, Yangfan Hu, Qian Yang, Yiming Zou, Yingjuan Zhao, Rong Yang
Summary: A temperature-controlled electrochemical sensor was developed using a composite membrane made of temperature-sensitive polymer PNIPAM and carboxylated MWCNTs. The sensor exhibited good temperature sensitivity and reversibility in detecting Dopamine. At low temperatures, the polymer stretched to block the electrically active sites, representing an OFF state. In high temperatures, the polymer shrunk to expose the active sites, indicating an ON state. The sensor had a wide detection range and low LOD, offering new possibilities for the application of thermosensitive polymers.
Article
Chemistry, Analytical
Abbas Hassan Oghli, Ahmad Soleymanpour
Summary: The composite-modified electrode prepared by sol-gel method was used to measure lead ions successfully, with the measurement of Pb(II) achieved in real samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Applied
Weiqiang Li, Kaisheng Diao, Daoyang Qiu, Yifang Zeng, Kaijie Tang, Yifu Zhu, Yingying Sheng, Yangping Wen, Mingfang Li
Summary: A new strategy for electrochemical recognition and detection of deoxynivalenol (DON) was proposed using a highly-sensitive and selective antibody-like sensor based on molecularly imprinted poly(L-arginine) (P-Arg-MIP) on carboxylic acid functionalized carbon nanotubes (COOH-MWCNTs). The sensor displayed high conductivity, effective surface area, antibody-like molecular recognition and affinity, and good response towards DON. This method provides a promising biomimetic sensing platform for the determination of mycotoxins in food and agro-products.
Article
Biophysics
Shichao Ding, Zhaoyuan Lyu, Suiqiong Li, Xiaofan Ruan, Mingen Fei, Yang Zhou, Xiangheng Niu, Wenlei Zhu, Dan Du, Yuehe Lin
Summary: An electrochemical sensor based on molecularly imprinted polypyrrole nanotubes has been developed for the detection of glyphosate with high sensitivity and specificity. The sensor demonstrates a wide detection range, low limit of detection, excellent stability, reproducibility, and selectivity against interferents. The sensor's practicality has been verified by detecting glyphosate in orange juice and rice beverages, making it suitable for monitoring pesticides in actual food and environmental samples.
BIOSENSORS & BIOELECTRONICS
(2021)
