Article
Chemistry, Applied
Xin Wang, Yiwei Xu, Yahui Li, Yanxiao Li, Zhihua Li, Wen Zhang, Xiaobo Zou, Jiyong Shi, Xiaowei Huang, Chao Liu, Wenting Li
Summary: The electrochemical sensor based on UiO-66-NH2@MWCNTs composites showed excellent linear relationship and detection limit for Cd2+. It was successfully applied for detecting Cd2+ in meat samples with high recovery rates and no significant difference compared to the certified method.
Article
Chemistry, Physical
Hongyuan Zhao, Huina Ma, Xiaoguang Li, Binbin Liu, Runqiang Liu, Sridhar Komarneni
Summary: The electrode sensor prepared with halloysite/multi-walled carbon nanotubes nanocomposite showed excellent performance in detecting methyl parathion, with a low detection limit and good detection effect.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Analytical
Aysu Arman, Sener Saglam, Aysem Uzer, Resat Apak
Summary: An electrochemical sensor was developed for direct detection of organic peroxide explosives, specifically TATP and HMTD. The sensor exhibited a distinct advantage by responding to intact TATP solutions in neutral medium, demonstrating excellent selectivity and sensitivity for PBE detection. The sensor also showed nonresponsive behavior to H2O2, preventing false positives from other peroxide materials commonly found in everyday use.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Hao Feng, Junhua Li, Yuqing Liu, Zhifeng Xu, Ying Cui, Mengqin Liu, Xing Liu, Lingzhi He, Jianbo Jiang, Dong Qian
Summary: Cubic MnSe2 nanoparticles were synthesized for the first time using a simple hydrothermal procedure. The synthesized MnSe2/MWCNTs composite exhibited enhanced electrochemical sensing signals for chloramphenicol detection. The composite showed a wide assay range and low limit of detection, making it a promising sensing platform.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Yuezhong Luo, Zhongying Li
Summary: In this study, a modified electrode with multi-walled carbon nanotubes-polyethylenimine composites was used to detect malachite green in aquaculture, showing excellent catalytic performance and a relatively low detection limit. The sensor demonstrated good accuracy, reproducibility, anti-interference ability, and rapid response in detecting malachite green in different samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Letian Cheng, Zhilong Guo, Yuansheng Lin, Xiujuan Wei, Kongyin Zhao, Zhengchun Yang
Summary: In this study, sodium alginate was used as functional monomers to prepare BSA molecularly imprinted carboxylated multi-wall carbon nanotubes (CMWCNT)/CaAlg hydrogel films (MIPs) and non-imprinted hydrogel films (NIPs) using bovine serum albumin as template molecules and calcium chloride as a cross-linking agent. The MIP film exhibited a high adsorption capacity for BSA and specific recognition for BSA. The loaded MIP film on the electrode surface improved the electrochemical signal.
Article
Chemistry, Analytical
Meijun Ni, Jia Chen, Chenxi Wang, Yilin Wang, Linzi Huang, Weicheng Xiong, Pengcheng Zhao, Yixi Xie, Junjie Fei
Summary: A highly-sensitive dopamine electrochemical sensor has been constructed based on two-dimensional transition metal carbide MXene, and density flooding theory has been used to reveal the redox process of dopamine. This sensor exhibits a wide linear range, low detection limit, high sensitivity, and excellent stability and anti-interference ability.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Gajapaneni Venkata Prasad, Venkatachalam Vinothkumar, Seung Joo Jang, Da Eun Oh, Tae Hyun Kim
Summary: A novel electrochemical sensing tool based on electropolymerization was developed for the detection of paracetamol. The sensor demonstrated excellent linear response, high selectivity, and stability, and was successfully applied for the detection of paracetamol in tablet formulation and human serum samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Materials Science, Ceramics
Hongyuan Zhao, Yunhang Liu, Fang Li, Gan Zhu, Meimei Guo, Jiale Han, Mengyuan Zhao, Zhankui Wang, Fuquan Nie, Qiwen Ran
Summary: We proposed an efficient and scalable ultrasound-assisted approach to synthesize a functionally integrated nanohybrid of silicon dioxide (SiO2) nanoparticles and multi-walled carbon nanotubes with graphitization and carboxylation (GCMCN). The modified sensor, GCMCN@SiO2/GCE, exhibited good gallic acid (GA) detection properties with a concentration range of 0.01-15 μM and LOD value of 1.99 nM. The GCMCN@SiO2/GCE sensor demonstrated acceptable repeatability, reproducibility, and selectivity, and was successfully applied for the quantitative analysis of GA in black tea and green tea samples.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Jiao Zou, Jin-Feng Guan, Guo-Qing Zhao, Xin-Yu Jiang, Yi-Ping Liu, Jin-Gang Yu, Wen-Jie Li
Summary: A novel electrochemical sensor based on cobalt oxide nanoparticles and hydroxylated single-walled carbon nanotubes composite was successfully developed for highly sensitive detection of dopamine. The sensor showed excellent electrocatalytic performance, good linear relationship, low detection limit, and high sensitivity. The synergistic effects between cobalt oxide and single-walled carbon nanotubes composite contributed to the outstanding sensitivity, good selectivity, and reproducibility of the sensor.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Analytical
Lingjun Geng, Jingcheng Huang, Hongguo Zhai, Zheng Shen, Jie Han, Yanyang Yu, Honggang Fang, Falan Li, Xia Sun, Yemin Guo
Summary: This paper introduces a molecularly imprinted electrochemical sensor with high sensitivity and good selectivity for chloramphenicol detection. By modifying a glassy carbon electrode with chitosan-multiwalled carbon nanotubes, a molecularly imprinted polymer with specific recognition sites for chloramphenicol was successfully prepared. The sensor exhibited high sensitivity, selectivity, stability, and reproducibility for chloramphenicol detection.
MICROCHEMICAL JOURNAL
(2022)
Article
Engineering, Environmental
Ming Yang, Xiaoning Ren, Taotao Yang, Chao Xu, Yongqin Ye, Zhaowei Sun, Linghao Kong, Bin Wang, Zhiqiang Luo
Summary: Novel conductive hydrogels with excellent biocompatibility and high conductivity have been developed for various applications in bioelectronics, such as biosensors and real-time monitoring of cell proliferation. The strategy of assembling conjugated polymer hydrogel with conductive crosslinker offers new insight for constructing highly conductive hydrogels.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Andres Felipe Quintero-Jaime, Alessio Ghisolfi, Diego Cazorla-Amoros, Emilia Morallon
Summary: Covalent functionalization of MWCNTs and oMWCNTs with Ph2PCl was studied by cyclic voltammetry, resulting in different levels of phosphorus incorporation depending on the upper potential limit used, with simultaneous observation of chlorine incorporation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Fabrizio Perrachione, Pablo R. Dalmasso, Fabiana A. Gutierrez, Gustavo A. Rivas
Summary: This study presents an electrochemical sensor using double-walled carbon nanotubes modified with garlic extract for the selective and sensitive quantification of lead(II) in environmental water samples. The sensor showed high sensitivity, reproducibility, and selectivity even in the presence of other ecotoxicologically relevant cations. It was successfully applied for the quantification of lead(II) in river and lagoon water.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Jingying Ma, Chaoyan Zhang, Xiaoping Hong, Jiyang Liu
Summary: We developed a simple hydrothermal technique to fabricate a flexible composite of cerium vanadate (CeVO4) and multi-walled carbon nanotubes (MWCNTs). The CeVO4/MWCNTs composite exhibited good conductivity and electrochemical catalytic performance when immobilized on a glassy carbon electrode (GCE). This CeVO4/MWCNTs-GCE sensor showed excellent analytical performance for the detection of sulfamethazine (SMZ).
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)