Article
Materials Science, Multidisciplinary
Natpichan Pienutsa, Krittamet Yannawibut, Jetthana Phattharaphongmanee, Oukrit Thonganantakul, Sira Srinives
Summary: An amperometric sensor for the determination of Cr(VI) was fabricated using a titanium dioxide-reduced graphene oxide composite as the sensing element. The composite showed good responses to Cr(VI) in the concentration range of 50 to 500 ppb, with no signal interference from other ions present in the solution.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Shamim Ahmed Him, Kang Hyun Park
Summary: In this study, a nitrogen-doped zeolite imidazolate framework (N-ZIF-67) and reduced graphene oxide (rGO)-based composite (N-ZIF-67.rGO) with superior electrochemical properties was synthesized as a sensor for hydroxylamine detection. The N-ZIF-67.rGO composite exhibited higher sensitivity and a wider linear range for HA detection than N-ZIF-67 alone. Additionally, it showed superior specific capacitance as a supercapacitor compared to N-ZIF-67, with fast electron transfer kinetics and high stability.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Shengmiao Sun, Bixuan Wang, Molan Qing, Danbi Tian, Ling Jiang, Liying Zhu
Summary: A modified screen-printed electrode based on ZIF-8, Ag NPs, and ErGO was developed for dopamine detection. The synthesized ErGO/Ag-ZIF-8 composites maintained the structure of ZIF-8. The oxidation current of dopamine increased linearly in the range of 0.1-200 mu M with a detection limit of 0.03 mu M (S/N=3). The sensor exhibited good reproducibility and selectivity, and it was successfully applied for dopamine detection in goat serum with satisfactory recovery range.
Article
Chemistry, Multidisciplinary
Qian Zhang, Panpan Li, Jun Wu, Yi Peng, Huan Pang
Summary: 2D metal-organic frameworks (MOFs) have shown great promise as electrochemical sensing materials. In this study, a simple hydrothermal synthesis method was used to prepare pyridine-regulated lamellar Ni-MOFs with ultrathin and well-defined 2D morphology. Compared with bulk MOFs, the 2D lamellar Ni-MOF exhibited higher surface area and active site density, leading to improved electrochemical glucose sensing performance.
Article
Chemistry, Physical
Shujun Wang, Fengping Chen, Zhi Li, Huan Tao, Liangzhuo Qu, Jinhua Li, Mingshan Zhu, Qingbing Zha
Summary: In this study, an electrochemical sensor based on a graphene oxide (GO)/Zn-metal organic framework (ZIF-8) composite electrode was developed for the detection of acetaminophen (APAP). The sensor exhibited higher sensitivity and improved electrochemical performance compared to pure ZIF-8 due to the introduction of GO, which enhanced the electron transport capacity of ZIF-8. It showed excellent selectivity, repeatability, and was successfully applied for the determination of APAP in human urine samples and drug tablets.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Du Won Jeong, Kyuhyoung Kim, Geonhee Lee, Minsoung Kang, Hyunju Chang, A-Rang Jang, Jeong-O Lee
Summary: In this study, we demonstrated that the direct intercalation of alkali-metal cations is not necessary for the redox reaction of Prussian blue. Passivation of Prussian blue thin films with monolayer graphene preserved its electrochemical activity and enhanced its stability. We also showed the potential of a transparent graphene electrode as an efficient hydrogen peroxide transducer.
Review
Chemistry, Multidisciplinary
Yumei Ren, Yuxi Xu
Summary: Three-dimensional graphene/metal-organic framework composites are gaining increasing attention in the field of energy due to their unique porous structure and properties. The combination of graphene and MOFs overcomes the limitations of MOFs' conductivity and stability, and prevents aggregation between graphene sheets. These composites, along with their derivative structures, have applications in batteries, supercapacitors, and electrocatalysis. This feature article discusses the synthesis methods, applications, challenges, and future prospects of 3DG/MOF-based composites.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Narayanan Jayaraman, Yuvaraj Palani, Raghava Rao Jonnalagadda, Easwaramoorthi Shanmugam
Summary: A multiplex electrochemical sensor was developed using graphene oxide functionalized with thymine and carbohydrazide. The sensor showed excellent electrode stability and selectivity towards Hg(II) and Cr(VI). The large surface area and conductivity of graphene oxide, coupled with functionalization, resulted in better selectivity for Hg(II) and Cr(VI) over other metal ions.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Nanoscience & Nanotechnology
Chang-Seuk Lee, Tae Hyun Kim
Summary: MoS2/graphene nanocomposites can be prepared in large quantities through combined high shear mixing and ultrasonication in deionized water, providing a facile and efficient route for large-scale industrial production. These nanocomposites exhibit excellent electrochemical performances in highly sensitive electrochemical sensors.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Hao Gou, Jingxian He, Rong Nie, Daqian Xu, Honghong Rao, Guohu Zhao
Summary: The effective synthesis of graphene oxide (GO) modified with chitosan (CS) via covalent bond exhibited the properties of a wide surface area and high chiral selectivity. A novel chiral electrochemical sensor based on chitosan covalently binding with graphene (RGO/CS) was fabricated for discrimination of tyrosine (Tyr) enantiomers. The as-synthesized material was successfully exploited for the recognition of Tyrosine enantiomers, indicating that the developed sensor has wide application prospects.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
Wei-Lun Chen, Yong-Ming Dai, Bi-Sheng Huang, Guan-Hui Lai, Mei-Hui Tsai
Summary: In this study, a novel carbon nanocomposite paste electrode modified with tetra aniline/ graphene oxide/gold nanoparticle (TA/GO/AuNP) composites was prepared for the electrochemical sensing of ascorbic acid (AA). The addition of AuNPs to the ternary composites increased the current response and detection sensitivity, indicating enhanced direct electron transfer between AA and the electrode. The results confirm that the addition of nanometer-scale components significantly affects the electrocatalytic activity.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Nanoscience & Nanotechnology
M. Sookhakian, Mohd Asri Mat Teridi, Goh Boon Tong, Pei Meng Woi, Munawar Khalil, Y. Alias
Summary: The Cu nanoparticle-reduced graphene oxide composite sensor exhibited excellent performance in nitrate reduction, showing better sensitivity and a wider detection range. The one-pot electrochemical deposition method allowed for the simultaneous formation of Cu nanoparticles, reduction of graphene oxide, and decoration of Cu nanoparticles onto the rGO surface.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Qiu-Yu Yang, Chao-Qun Wan, Yu-Xin Wang, Xiao-Fang Shen, Yue-Hong Pang
Summary: A colorimetric-electrochemical dual-mode analytical method based on bismuth metal-organic framework nanozyme was developed for label-free and trace/ultra-trace Cr6+ detection. The metal-organic framework nanozyme BiO-BDC-NH2 possesses peroxidase-mimic activity and can catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine in the presence of hydrogen peroxide. The method combines colorimetric detection and electrochemical reduction of Cr6+ to achieve high sensitivity and low detection limit.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Yinqi Xu, Yuanjie Yu, Shan Xue, Xiaoyu Ma, Haisheng Tao
Summary: An innovative electrochemical sensor was developed by modifying a glassy carbon electrode with graphene oxide aerogel-wrapped copper centered metal-organic framework for the detection of trace catechol. The sensor showed improved stability, sensitivity, and repeatability compared to the unmodified electrode, providing a new idea for electrochemical detection of trace substances.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Natchaya Malarat, Wipawee Oin, Kotchaphan Kanjana, Fonthip Makkliang, Mohamed Siaj, Sujittra Poorahong
Summary: A simple and highly sensitive square wave voltammetric method using a modified pencil graphite electrode for the determination of methylparaben (MP) was reported. The modified electrode showed enhanced electroactivity and antifouling for the oxidation of MP compared to the unmodified electrode. The modified electrode exhibited a stable response, high reproducibility, and repeatability, with a better limit of detection than the unmodified electrode.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Mingxia Liu, Lixia Chen, Tingting Tian, Zhiguo Zhang, Xiangjun Li
ANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Analytical
Ning Zhang, Wenchao Deng, Yao Li, Yangde Ma, Yan Liu, Xiangjun Li, Hailin Wang
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Zhen Yao, Charles E. Schulz, Jiahui Yang, Xiangjun Li, Jianfeng Li
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Medicinal
Shaokun Chen, Weiyi Lai, Xiangjun Li, Hailin Wang
Summary: In this study, we found that the pyroptosis inhibitor necrosulfonamide (NSA) can selectively induce double-strand breaks and kill AML cells, with reactive oxygen species (ROS) mediating the toxicity. This provides a novel candidate for the treatment of AML.
CHEMICAL RESEARCH IN TOXICOLOGY
(2022)
Article
Chemistry, Analytical
Lixia Chen, Tingting Tian, Sen Yang, Yalei Dong, Hong Cui, Xiangjun Li
Summary: Enantioseparation and determination of chiral drugs are crucial for the study of biochemistry and pharmaceuticals due to the different characteristics of individual enantiomers. In this study, capillary electrophoresis and electronic circular dichroism were used to separate and identify the enantiomers of cetirizine. A linear relationship was found between the circular dichroism signal and the electrophoretic peak area difference. This method allows for the identification and quantification of cetirizine enantiomers without the need for single enantiomer standards. It was successfully applied in the determination of cetirizine in human urine and showed promising results for pharmacokinetic studies.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Dao Lin, Yongqi Ke, Hongjia Chen, Yinlong Zhang, Xinjing Tang, Wei Cui, Xiangjun Li, Yujian He, Li Wu
Summary: The control of DNA assembly systems on cells is crucial for precise targeted therapies. In this study, a controllable DNA self-assembly system based on the regulation of G-quadruplex DNA topology by a reduction-sensitive azobenzene ligand is reported. The ligand can induce a complete change of G4 topology in a tissue-specific manner, allowing control of the self-assembly of G4-functionalized DNAs on cells.
Article
Biochemistry & Molecular Biology
Shaokun Chen, Weiyi Lai, Yanan Li, Yan Liu, Jie Jiang, Xiangjun Li, Guibin Jiang, Hailin Wang
Summary: Intracellular decay of N-6-methyladenine (m6A)-containing RNA does not generate free 6mdA species or lead to misincorporation of DNA 6mdA in most tested mammalian cell lines, revealing a sanitation mechanism that prevents 6mdA misincorporation.
Article
Chemistry, Analytical
Hong Cui, Shuaishuai Cui, Siyuan Zhang, Qiuju Tian, Yunfeng Liu, Ping Zhang, Mingxiu Wang, Jialing Zhang, Xiangjun Li
Summary: The nanocomposite based on Cu-MOF/hemin shows excellent dispersibility and high water solubility, and exhibits efficient electrocatalytic performance for the detection of hydrogen peroxide (H2O2). This material has the potential to be used in electrochemical sensing platforms for non-enzymatic biosensing, providing a new method for clinical diagnosis and real-time monitoring.
Article
Chemistry, Multidisciplinary
Yuhua Zhang, Yongguang Wu, Jing Wang, Ye Hu, Wenhui Fang, Jiaqi Dang, Ying Wu, Xiangjun Li, Hong Zhao, Zengxi Li
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
