Article
Engineering, Electrical & Electronic
Roya Mohammadzadeh Kakhki, Soghra Yaghoobi Rahni
Summary: In this study, a new photoelectrochemical sensor based on Cu3V2O8 nanostructure-doped poly ethylene glycol-modified pencil graphite electrode was successfully prepared for the determination of acetaminophen. The sensor exhibited a wide dynamic range and low detection limit, with the oxidation of acetaminophen being a diffusion control phenomenon.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Zihua Li, Yusheng Zhou, Yuhan Cui, Guodong Liang
Summary: Efficient electrochemiluminescent (ECL) luminogens were synthesized and used to fabricate a solid-state ECL film with unique dual-potential ECL properties. The film showed bright ECL with high efficiency and was successfully applied for the sensitive detection of malachite green (MG) in a real fish tissue sample. The study provides a promising platform for the sensitive detection of MG in the food industry.
Article
Chemistry, Analytical
Anderson M. Santos, Ademar Wong, Thiago M. Prado, Elson L. Fava, Orlando Fatibello-Filho, Maria D. P. T. Sotomayor, Fernando C. Moraes
Summary: A sensitive and selective method for ethinylestradiol detection was developed using a magnetic nanoparticle coated with molecularly imprinted polymers sensor, with significant increase in peak current magnitude observed. The sensor showed good repeatability and no interference from different compounds, with successful application in environmental and biological samples for ethinylestradiol detection, demonstrating recovery rates between 96 to 105% and 97-104%, respectively.
Article
Chemistry, Analytical
Zhuo Sun, Juan Lu, Xin Zhang, Xiangyu Shan, Qian Wu, Chao Li, Huiling Li, Shuning Yang, Li Tian
Summary: In this study, electrospun nanofibers containing CdTe@ZnNi-metal-organic frameworks (CdTe@ZnNi-MOF NFs) were used for the first time to construct an electrochemiluminescence (ECL) sensor for chlorpyrifos (CPF) detection. The CdTe@ZnNi-MOF NFs acted as a carrier for luminol and also enhanced the reaction of the ECL system. The constructed sensor showed satisfactory results in weakly alkaline solution and effectively detected CPF in vegetable samples.
Article
Chemistry, Analytical
Gen Liu, Hui Gao, Jiajia Chen, Congying Shao, Feifei Chen
Summary: The study successfully developed an immunosensor using a hollowed-out carbon nanotube sponge electrode for sensitive detection of carcinoembryonic antigen (CEA), offering a wide linear range and extremely low detection limit. The sensor demonstrated good stability and reproducibility, showing a promising potential for wide application in clinical analysis.
Article
Chemistry, Analytical
Roya Afsharipour, Shayessteh Dadfarnia, Ali Mohammad Haji Shabani
Summary: A novel sorbent consisting of magnetic oxidized nanocelluloses modified with graphene quantum dots was developed for the separation and preconcentration of dopamine. A chemiluminescence system was used to determine the eluted dopamine, and the presence of graphene quantum dots and Fe3+ ions affected the intensity of the system. The method showed good linearity, low limit of detection, and small relative standard deviations.
Article
Chemistry, Analytical
Lili Yang, Tingting Wang, Changhao Bao, Min Shi, Xianju Huang, Han Cheng
Summary: A modified electrochemical sensor was developed for high-sensitivity detection of dopamine, which showed a significant difference in detecting dopamine and ascorbic acid. The sensor was successfully applied for dopamine determination in mouse serum in the presence of a high concentration of ascorbic acid, achieving good recovery.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Zahra Mamipour, Mohsen Kompany-Zareh, Ali Nematollahzadeh
Summary: This study developed a facile and effective nanosensor for the detection of 4-nitrophenol (4-NP) in water samples. The nanosensor exhibited turn-off fluorescent signals when exposed to 4-NP, and analysis of the excitation-emission matrix (EEM) data revealed a negative emission spectrum for 4-NP.
ANALYTICAL METHODS
(2023)
Article
Multidisciplinary Sciences
Mohammad Mehdi Habibi, Jahan B. Ghasemi, Alireza Badiei, Parviz Norouzi
Summary: A sensitive electrochemical sensor was successfully developed for simultaneous analysis of morphine and methadone. The sensor was optimized and trained using modern electrochemical techniques and multivariable analysis. The model showed good performance in both test and real matrix samples with high predictive accuracy.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Analytical
Yuguang Lv, Yuqing Cheng, Kuilin Lv, Guoliang Zhang, Jiang Wu
Summary: A CdTe quantum dot-based fluorescent probe was synthesized to determine felodipine (FEL) in this work. The synthesis conditions, structure, and interaction with FEL of CdTe quantum dots were analyzed. The optimal conditions for both the synthesis of CdTe quantum dots and the reaction with FEL were determined to successfully construct the fluorescent probe.
Article
Chemistry, Applied
Linlin Wang, Jayasmita Jana, Jin Suk Chung, Seung Hyun Hur
Summary: Water-soluble N-doped carbon dots (NCDs) were designed by hydrothermal treatment and chemical reactions, then passivated for dopamine (DA) quenching detection, showing low detection limit and wide linear range.
Article
Spectroscopy
Yuting Wang, Fengming Zhang, Jia Liu, Bin Yang, Yue Yuan, Yanyan Zhou, Shuyun Bi
Summary: A method for detecting the content of nitrofurazone (NFZ) using fluorescence quenching of N-Acetyl-L-Cysteine (NAC) coated cadmium telluride quantum dots (CdTe QDs) was established. The synthesized CdTe QDs were characterized using transmission electron microscopy (TEM), fluorescence, and ultraviolet visible spectra (UV-vis). The interaction between NFZ and CdTe QDs was investigated by Stern-Volmer analysis and time-resolved fluorescence, and the binding forces were found to be hydrogen bonds or van der Waals forces. The method showed high correlation, with a detection limit of 0.04 μg mL-1 and good recovery rate and precision.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemistry & Molecular Biology
Xiaoxiao Chen, Yang Liu, Pu Li, Yichen Xing, Chaobiao Huang
Summary: A method for the trace detection of chloramphenicol (CAP) was established using a dual recognition system with a fluorescence quenching of quantum dots (QDs) and specific recognition of molecularly imprinted polymer (MIP). The MIP@SiO2@QDs showed good detection selectivity for CAP and was successfully applied to quantify CAP in lake water with promising potential for on-site detection in environmental waters.
Article
Chemistry, Analytical
Sedighe Akbari
Summary: The voltammetric determination of amaranth was performed using a graphene quantum dots modified carbon paste electrode. The structure of ionic liquid was used as an electrode modifier. The suggested approach showed proper linearity and selectivity, with a low detection limit under optimal conditions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Spectroscopy
Fang Zhang, Jiaman Liang, Yang Liu, Qiuju Zhou, Yushuang Hong, Xianping Chen, Kejun Tan
Summary: A dual-readout strategy using water-soluble CdTe quantum dots is proposed for the detection of PFOA and PFOS. The method is simple, sensitive, and cost-effective.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
