51
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Highly sensitive electrochemical sensor for tyrosine detection using a sub-millimeter electrode. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106106] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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52
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Abdul-Hamead AA, Othman FM, Fakhri MA. Preparation of MgO- MnO2 nanocomposite particles for cholesterol sensors. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS 2021; 32:15523-15532. [PMID: 38624664 PMCID: PMC8140320 DOI: 10.1007/s10854-021-06102-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/02/2021] [Indexed: 05/03/2023]
Abstract
Various nanoparticles have been developed for bio-applications. However, nanocomposites particles, (NCPs) with effective and ability to sensing cholesterol, are still needed. Herein, we present new cholesterol and pH-responsive NCPs as sensor particles to promote sensitivity. The traditional method of mixing and grinding was used to fabricate the oxides of magnesium and manganese MgO-MnO2 NCPs with different mixing ratios. Structural properties, detection of cholesterol, and pH sensitivity were examined. Results propped the high efficiency of MgO-MnO2 NCPs compared with individual oxides (MgO and MnO2), low response time, while the analytical results confirmed the homogeneous structure of MgO-MnO2 NCPs. Particle size distribution results for NCPs were within 16.4 to 100 nm, which makes it promising in medical and bio-applications.
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Affiliation(s)
- Alaa A. Abdul-Hamead
- Department of Materials Engineering, University of Technology/Baghdad-IRAQ, Baghdad, Iraq
| | - Farhad M. Othman
- Department of Materials Engineering, University of Technology/Baghdad-IRAQ, Baghdad, Iraq
| | - Makram A. Fakhri
- Laser and Optoelectronic Engineering Department, University of Technology, Baghdad, Iraq
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53
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Ko LW, Su CH, Liao PL, Liang JT, Tseng YH, Chen SH. Flexible graphene/GO electrode for gel-free EEG. J Neural Eng 2021; 18. [PMID: 33831852 DOI: 10.1088/1741-2552/abf609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 04/08/2021] [Indexed: 11/11/2022]
Abstract
Objective.Developments in electroencephalography (EEG) technology have allowed the use of the brain-computer interface (BCI) outside dedicated labratories. In order to achieve long-term monitoring and detection of EEG signals for BCI application, dry electrodes with good signal quality and high bio compatibility are essential. In 2016, we proposed a flexible dry electrode made of silicone gel and Ag flakes, which showed good signal quality and mechanical robustness. However, the Ag components used in our previous design made the electrode too expensive for commercial adaptation.Approach.In this study, we developed an affordable dry electrode made of silicone gel, metal flakes and graphene/GO based on our previous design. Two types of electrodes with different graphene/GO proportions were produced to explore how the amount of graphene/GO affects the electrode.Main results.During our tests, the electrodes showed low impedance and had good signal correlation to conventional wet electrodes in both the time and frequency domains. The graphene/GO electrode also showed good signal quality in eyes-open EEG recording. We also found that the electrode with more graphene/GO had an uneven surface and worse signal quality. This suggests that adding too much graphene/GO may reduce the electrods' performance. Furthermore, we tested the proposed dry electrodes' capability in detecting steady state visually evoked potential. We found that the dry electrodes can reliably detect evoked potential changes even in the hairy occipital area.Significance.Our results showed that the proposed electrode has good signal quality and is ready for BCI applications.
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Affiliation(s)
- Li-Wei Ko
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-Devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Cheng-Hua Su
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Pei-Lun Liao
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-Devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Jui-Ting Liang
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Yao-Hsuan Tseng
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Shih-Hsun Chen
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
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54
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Afzali M, Mostafavi A, Afzali Z, Shamspur T. Designing a rapid and selective electrochemical nanosensor based on molecularly imprinted polymer on the Fe3O4/MoS2/glassy carbon electrode for detection of immunomodulatory drug pomalidomide. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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55
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Liu CL, Yang J, Bai XH, Cao ZK, Yang C, Ramakrishna S, Yang DP, Zhang J, Long YZ. Dual Antibacterial Effect of In Situ Electrospun Curcumin Composite Nanofibers to Sterilize Drug-Resistant Bacteria. NANOSCALE RESEARCH LETTERS 2021; 16:54. [PMID: 33826006 PMCID: PMC8026794 DOI: 10.1186/s11671-021-03513-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
Bacterial infection especially caused by multidrug-resistant bacteria still endangers human life. Photodynamic therapy (PDT) can effectively kill bacteria, and nanofiber-based PDT can effectively reduce damage to normal tissues. However, current photosensitizers coated on the surfaces of fibers would release to the wound, causing some side effects. And nanofibers prepared by traditional method exhibit poor adhesion on the wound, which severely reduces the PDT effect due to its short-range effect. Herein, core-shell curcumin composite nanofibers are prepared by in situ electrospinning method via a self-made portable electrospinning device. The obtained composite nanofibers show superior adhesiveness on different biological surface than that of traditional preparation method. Upon 808-nm irradiation, these composite nanofibers effectively produced singlet oxygen (1O2) without curcumin falling off. After these composite nanofibers' exposure to drug-resistant bacteria, they exhibit dual antibacterial behaviors and efficiently kill the drug-resistant bacteria. These dual antibacterial nanofiber membranes with excellent adhesiveness may benefit the application of wound infection as antibacterial dressing.
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Affiliation(s)
- Chun-Li Liu
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Jun Yang
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Xiao-Han Bai
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Zhi-Kai Cao
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Chen Yang
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Da-Peng Yang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China
| | - Jun Zhang
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China.
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China.
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56
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Jiang X, Ma J, Jiang G, Xu M, Huang X, Gao G, Dai X. Preparation of Gold Nanoplates Using Ortho Carbonyl Compounds as Capping Agents for Electrochemical Sensing of Lead Ions. NANOSCALE RESEARCH LETTERS 2021; 16:57. [PMID: 33829314 PMCID: PMC8026806 DOI: 10.1186/s11671-021-03521-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
In this study, gold nanoplates were synthesized using plant molecules (gallic acid) following a kinetic control mode. The growth of nanoplates is mainly due to the specific adsorption of capping agents on certain crystal facets. Through systematical characterizations, it is found that the distance between two oxygen atoms in ortho carbonyl compounds matches well with the lattice spacing of gold (111) facets exactly, which is beneficial to the formation of twin seeds and further the growth of plate-like gold nanoparticles. The gold nanoplates on glassy carbon electrode show a remarkably improved electrochemical sensing activity of lead ions compared to the bare glassy carbon electrode or spherical gold nanoparticle-modified electrode. The modified electrode is expected to be used in the detection of lead ion concentration in heavy metal wastewater.
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Affiliation(s)
- Xinde Jiang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
- High-Tech Development Zone, Tianxiang Road 289, Nanchang, 330099, Jiangxi, China.
| | - Jianye Ma
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Guixian Jiang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Manqing Xu
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Xueping Huang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Guiqing Gao
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Xin Dai
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
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57
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Wu B, Xiao L, Zhang M, Yang C, Li Q, Li G, He Q, Liu J. Facile synthesis of dendritic-like CeO2/rGO composite and application for detection of uric acid and tryptophan simultaneously. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122023] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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58
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Feng J, Deng P, Xiao J, Li J, Tian Y, Wu Y, Liu J, Li G, He Q. New voltammetric method for determination of tyrosine in foodstuffs using an oxygen-functionalized multi-walled carbon nanotubes modified acetylene black paste electrode. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103708] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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59
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Xavier JR. Corrosion protection performance and interfacial interactions of polythiophene/silanes/MnO2 nanocomposite coatings on magnesium alloy in marine environment. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1887627] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Joseph Raj Xavier
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu, India
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60
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Ouyang H, Li W, Long Y. Carbon-doped h-BN for the enhanced electrochemical determination of dopamine. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137682] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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61
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Guo S, Liang Y, Liu L, Yin M, Wang A, Sun K, Li Y, Shi Y. Research on the fate of polymeric nanoparticles in the process of the intestinal absorption based on model nanoparticles with various characteristics: size, surface charge and pro-hydrophobics. J Nanobiotechnology 2021; 19:32. [PMID: 33499885 PMCID: PMC7839302 DOI: 10.1186/s12951-021-00770-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The use of drug nanocarriers to encapsulate drugs for oral administration may become an important strategy in addressing the challenging oral absorption of some drugs. In this study-with the premise of controlling single variables-we prepared model nanoparticles with different particle sizes, surface charges, and surface hydrophobicity/hydrophilicity. The two key stages of intestinal nanoparticles (NPs) absorption-the intestinal mucus layer penetration stage and the trans-intestinal epithelial cell stage-were decoupled and analyzed. The intestinal absorption of each group of model NPs was then investigated. RESULTS Differences in the behavioral trends of NPs in each stage of intestinal absorption were found to result from differences in particle properties. Small size, low-magnitude negative charge, and moderate hydrophilicity helped NPs pass through the small intestinal mucus layer more easily. Once through the mucus layer, an appropriate size, positive surface charge, and hydrophobic properties helped NPs complete the process of transintestinal epithelial cell transport. CONCLUSIONS To achieve high drug bioavailability, the basic properties of the delivery system must be suitable for overcoming the physiological barrier of the gastrointestinal tract.
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Affiliation(s)
- Shiqi Guo
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Yanzi Liang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Lanze Liu
- College of Life Science, Yantai University, Yantai, 264005, People's Republic of China
| | - Miaomiao Yin
- China Resources Double-crane Pharmaceutical Co., Ltd., Beijing, China
| | - Aiping Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Kaoxiang Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Co., Ltd., Yantai, China
| | - Youxin Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China.
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Co., Ltd., Yantai, China.
| | - Yanan Shi
- College of Life Science, Yantai University, Yantai, 264005, People's Republic of China.
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Tajik S, Beitollahi H, Nejad FG, Dourandish Z, Khalilzadeh MA, Jang HW, Venditti RA, Varma RS, Shokouhimehr M. Recent Developments in Polymer Nanocomposite-Based Electrochemical Sensors for Detecting Environmental Pollutants. Ind Eng Chem Res 2021; 60:1112-1136. [DOI: 10.1021/acs.iecr.0c04952] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Somayeh Tajik
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, 7616911319, Iran
| | - Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, 7518934119, Iran
| | - Fariba Garkani Nejad
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, 7518934119, Iran
| | - Zahra Dourandish
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, 7518934119, Iran
| | - Mohammad A. Khalilzadeh
- Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, North Carolina, 27695-8005, United States
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Richard A. Venditti
- Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, North Carolina, 27695-8005, United States
| | - Rajender S. Varma
- Chemical Methods and Treatment Branch, Water Infrastructure Division, Center for Environmental Solutions and Emergency Response, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, United States
- Regional Center of Advanced Technologies and Materials, Palacky University, Olomouc, 783 71, Czech Republic
| | - Mohammadreza Shokouhimehr
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
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63
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Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid Using a Novel Electrochemical Sensor Based on Palladium Nanoparticles/Reduced Graphene Oxide Nanocomposite. Int J Anal Chem 2020; 2020:8812443. [PMID: 33381184 PMCID: PMC7759412 DOI: 10.1155/2020/8812443] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 01/08/2023] Open
Abstract
A fresh strategy based on two-step electrochemical reduction for the fabrication of palladium nanoparticles/reduced oxide nanocomposite-modified glass carbon electrode (PdNPs/rGO/GCE) was established in this study. Field emission scanning electron microscopy (FESEM) images showed that spherical PdNPs were evenly distributed on the surface of rGO-modified electrode (rGO/GCE), and the introduction of PdNPs has no effect on the morphology of rGO. Electrochemical impedance spectroscopy (EIS) studies revealed that the conductivity of PdNPs/rGO/GCE was higher than that of rGO/GCE and bare GCE. The electrochemical performances of PdNPs/rGO/GCE sensor were investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry using ascorbic acid (AA), dopamine (DA), and uric acid (UA) as analytes. At the optimized conditions, wide linear ranges of 0.5–3.5 mM (R2 = 0.99), 3–15 μM (R2 = 0.99) and 15–42 μM (R2 = 0.99), and 0.3–1.4 mM (R2 = 0.99) towards AA, DA, and UA in ternary mixture were observed, respectively. In addition to superior anti-interference capability, fast response (≤5 s), excellent reproducibility, and good long-term stability were also given by this sensor. These results suggested that PdNPs/rGO/GCE is promising for the simultaneous detection of AA, DA, and UA in practical application.
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64
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Zhang X, Zhu M, Jiang Y, Wang X, Guo Z, Shi J, Zou X, Han E. Simple electrochemical sensing for mercury ions in dairy product using optimal Cu 2+-based metal-organic frameworks as signal reporting. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123222. [PMID: 32590133 DOI: 10.1016/j.jhazmat.2020.123222] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
A convenient sensor is developed for electrochemical assay of Hg2+ in dairy product using the optimal Cu2+-based metal-organic frameworks (Cu-MOFs) as signal reporting. Benefiting from specific recognition between Hg2+ and thymine (T)-rich DNA strands, the interferences of milk matrices are effectively eliminated, thereby greatly improving the accuracy of test results. Moreover, the suitable Cu-MOFs offer an efficient carrier for probe design, and the contained Cu2+ ions could be directly detected to output electrochemical signal of Hg2+ presence without labor- or time-intensive operations. Compared with previous methods, this sensor substantially simplifies the process of electrochemical measurement and facilitates highly sensitive, selective and rapid analysis of Hg2+ with detection limit of 4.8 fM, offering a valuable means for monitoring dairy product contamination with Hg2+.
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Affiliation(s)
- Xinai Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Minchen Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yanjuan Jiang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xin Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jiyong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - En Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
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65
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Baye AF, Appiah-Ntiamoah R, Amalraj J, Reddy KK, Kim H. Graphene oxide interlayered Ga-doped FeSe2 nanorod: A robust nanocomposite with ideal electronic structure for electrochemical dopamine detection. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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66
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Synthesis of AuNPs-GH composites for the electrochemical detection of daphnetin. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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67
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Liu L, Hu Q, Sun H, Han J, Pan Y, Yang ZQ. An ultra-sensitive analytical platform based on bluish green emitting carbon quantum dots for the detection of curcumin in dietary foods. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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68
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Ziegler JM, Andoni I, Choi EJ, Fang L, Flores-Zuleta H, Humphrey NJ, Kim DH, Shin J, Youn H, Penner RM. Sensors Based Upon Nanowires, Nanotubes, and Nanoribbons: 2016-2020. Anal Chem 2020; 93:124-166. [PMID: 33242951 DOI: 10.1021/acs.analchem.0c04476] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joshua M Ziegler
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Ilektra Andoni
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Eric J Choi
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Lu Fang
- Department of Automation, Hangzhou Dianzi University, 1158 Second Street, Xiasha, Hangzhou 310018, China
| | - Heriberto Flores-Zuleta
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Nicholas J Humphrey
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Dong-Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Jihoon Shin
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Hyunho Youn
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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69
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Poolakkandy RR, Menamparambath MM. Transition metal oxide based non‐enzymatic electrochemical sensors: An arising approach for the meticulous detection of neurotransmitter biomarkers. ELECTROCHEMICAL SCIENCE ADVANCES 2020. [DOI: 10.1002/elsa.202000024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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70
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Wu JH, Lee HL. Determination of sunset yellow and tartrazine in drinks using screen-printed carbon electrodes modified with reduced graphene oxide and NiBTC frameworks. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105133] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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71
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Dondo N, Shumba M, Moyo M, Nyoni S. Simultaneous non-steroidal anti-inflammatory drug electrodetection on nitrogen doped carbon nanodots and nanosized cobalt phthallocyanine conjugate modified glassy carbon electrode. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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72
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Abstract
Antibiotics are extensively employed as bacteriostatic agents for fighting against microbial infection in animals. However, inappropriate doses of antibiotic drugs may result in antibiotic residues in food of animal origin and may cause various side effects on human health. Moreover, the transferor of antibiotic-resistant bacteria to humans through the food chain may induce serious health hazards. Hence, it is vital to develop sensitive and selective methods for rapid screening and regular monitoring of antibiotic residues in animal-derived foods. The conventional different chromatographic and spectroscopic techniques are time-consuming, expensive and require skilled personnel. To overcome such limitations, biosensors have emerged as an innovative approach recently and integrated with nanotechnologies for sensitive, rapid and on-site monitoring of different antibiotic residues in animal origin foods. This mini-review aims to give an overview of the currently available biosensing techniques to detect antibiotic residue in foods.
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Affiliation(s)
- M Z H Khan
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, Bangladesh.,Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, Bangladesh
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73
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Singh M, Bhardiya SR, Asati A, Sheshma H, Rai A, Rai VK. Design of a Sensitive Electrochemical Sensor Based on Ferrocene‐reduced Graphene Oxide/Mn‐spinel for Hydrazine Detection. ELECTROANAL 2020. [DOI: 10.1002/elan.202060345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Manorama Singh
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya Bilaspur, CG 495009 INDIA
| | - Smita R. Bhardiya
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya Bilaspur, CG 495009 INDIA
| | - Ambika Asati
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya Bilaspur, CG 495009 INDIA
| | - Harendra Sheshma
- School of Physical Sciences Jawaharlal Nehru University New Delhi 110067 INDIA
| | - Ankita Rai
- School of Physical Sciences Jawaharlal Nehru University New Delhi 110067 INDIA
| | - Vijai K. Rai
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya Bilaspur, CG 495009 INDIA
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74
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Cui Y, Li J, Liu M, Tong H, Liu Z, Hu J, Qian D. Convenient synthesis of three-dimensional hierarchical CuS@Pd core-shell cauliflowers decorated on nitrogen-doped reduced graphene oxide for non-enzymatic electrochemical sensing of xanthine. Mikrochim Acta 2020; 187:589. [PMID: 33033940 DOI: 10.1007/s00604-020-04570-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/25/2020] [Indexed: 11/28/2022]
Abstract
A novel hybrid with three-dimensional (3D) hierarchical CuS@Pd core-shell cauliflowers decorated on nitrogen-doped reduced graphene oxide (CuS@Pd/N-RGO) has been prepared by a facile wet-chemical route without utilizing any template molecules and surfactants. The characterization results reveal that the 3D flower-like structure of CuS "core" is composed of interconnecting nanoplates, which is conductive to the loading of Pd nanoparticles' "shell" and results in the robust interaction between the core and shell for the formation of CuS@Pd cauliflowers. Anchoring such appealing CuS@Pd cauliflowers on the two-dimensional N-RGO can efficaciously inhibit the aggregation of CuS@Pd cauliflowers and accelerate the kinetics of xanthine oxidation. Benefiting from the multi-functional properties and unique morphology, the sensor constructed by CuS@Pd/N-RGO exhibits excellent performance for non-enzymatic detection of xanthine including a wide detection range of 0.7-200.0 μM (0.94 V vs. SCE), a low detection limit of 28 nM (S/N = 3), high reproducibility (relative standard deviation (RSD) = 4.1%), and commendable stability (retained 90% of the initial electrochemical responses after storage for 30 days), which is amongst the best of various electrochemical sensors reported for xanthine assays till date. Reliable and satisfying recoveries (95-105%, RSD ≤ 4.1%) are achieved for xanthine detection in real samples. The inspiring results make the uniquely structural CuS@Pd/N-RGO greatly promising in non-enzymatic electrochemical sensing applications. Graphical abstract A high-performance non-enzymatic xanthine sensor has been constructed by the three-dimensional hierarchical CuS@Pd core-shell cauliflowers decorated on nitrogen-doped reduced graphene oxide.
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Affiliation(s)
- Ying Cui
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, People's Republic of China
| | - Junhua Li
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, People's Republic of China
- Hunan Provincial Key Laboratory of Chemical Power Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Mengqin Liu
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, People's Republic of China
| | - Haixia Tong
- Institute of Chemical and Biological Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
| | - Zeng Liu
- Cangzhou Dahua Group Co., Ltd, Cangzhou, 061000, People's Republic of China
| | - Jiawen Hu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People's Republic of China
| | - Dong Qian
- Hunan Provincial Key Laboratory of Chemical Power Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China.
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75
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Guan JF, Zou J, Liu YP, Jiang XY, Yu JG. Hybrid carbon nanotubes modified glassy carbon electrode for selective, sensitive and simultaneous detection of dopamine and uric acid. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110872. [PMID: 32559693 DOI: 10.1016/j.ecoenv.2020.110872] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/04/2020] [Accepted: 06/07/2020] [Indexed: 05/20/2023]
Abstract
Based on a hybrid carbon nanotube composite, a novel electrochemical sensor with high sensitivity and selectivity was designed for the simultaneous determination of dopamine (DA) and uric acid (UA). The hybrid carbon nanotube composite was prepared by ultrasonic assembly of carboxylated multi-walled carbon nanotube (MWCNT-COOH) and hydroxylated single-walled carbon nanotube (SWCNT-OH). And the hybrid (MWCNT-COOH/SWCNT-OH) composite was characterized by field emission scanning electron microscopy (FE-SEM) and Fourier transform infrared (FT-IR) spectroscopy. The electrochemical performances of MWCNT-COOH/SWCNT-OH composite modified glassy carbon electrode (MWCNT-COOH/SWCNT-OH/GCE) were analyzed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV). Under the optimum experimental conditions, the as-prepared sensor showed high sensitivity and selectivity for DA and UA. The calibration curves obtained were linear for the currents versus DA and UA concentrations in the range 2-150 μM, and limits of detection (LODs) were calculated to be 0.37 μM and 0.61 μM (signal-to-noise ratio of 3, S/N = 3), respectively. The recoveries of DA and UA in bovine serum samples at MWCNT-COOH/SWCNT-OH/GCE were in the range 96.18-105.02%, and relative standard deviations (RSDs) were 3.34-7.27%. The proposed electrochemical sensor showed good anti-interference ability, excellent reproducibility and stability, as well as high selectivity, which might provide a promising platform for determination of DA and UA.
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Affiliation(s)
- Jin-Feng Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Jiao Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Yi-Ping Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Xin-Yu Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Jin-Gang Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China.
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76
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An advanced molecularly imprinted electrochemical sensor for the highly sensitive and selective detection and determination of Human IgG. Bioelectrochemistry 2020; 137:107671. [PMID: 32950847 PMCID: PMC7480476 DOI: 10.1016/j.bioelechem.2020.107671] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/05/2020] [Accepted: 09/05/2020] [Indexed: 12/25/2022]
Abstract
An advanced molecularly imprinted electrochemical sensor with high sensitivity and selectivity for the detection of Human immunoglobulin G (IgG) was successfully constructed. With acrylamide imprinting systems, surface imprinting on the nanoparticles CuFe2O4 targeted at IgG was employed to prepare molecularly imprinted polymer, which served as recognition element for the electrochemical sensor. Furthermore, the sensor harnessed a molybdenum disulfide (MoS2)@nitrogen doped graphene quantum dots (N-GQDs) with ionic liquid (IL) nanocomposite for signal amplification. Under optimized experimental conditions, the sensor shortened the response time to less than 8 min, and the response was linear at the IgG concentration of 0.1-50 ng·mL-1 with a low detection limit of 0.02 ng·mL-1 (S/N = 3). Our findings suggested that, the sensor exhibited high detectability and long-time stability. The satisfactory results of human serum sample analysis showed that the developed IgG sensor had promising potential clinical applications in detecting IgG content.
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Rostami S, Mehdinia A, Jabbari A. Intrinsic peroxidase-like activity of graphene nanoribbons for label-free colorimetric detection of dopamine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111034. [DOI: 10.1016/j.msec.2020.111034] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/25/2022]
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78
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Polyacetal/graphene/polypyrrole and cobalt nanoparticles electroconducting composites. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2020. [DOI: 10.1007/s40090-020-00218-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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79
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Wuamprakhon P, Krittayavathananon A, Kosasang S, Ma N, Maihom T, Limtrakul J, Chanlec N, Kidkhunthod P, Sawangphruk M. Effect of Intercalants inside Birnessite-Type Manganese Oxide Nanosheets for Sensor Applications. Inorg Chem 2020; 59:15595-15605. [PMID: 32815371 DOI: 10.1021/acs.inorgchem.0c01592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Hydrazine is a common reducing agent widely used in many industrial and chemical applications; however, its high toxicity causes severe human diseases even at low concentrations. To detect traces of hydrazine released into the environment, a robust sensor with high sensitivity and accuracy is required. An electrochemical sensor is favored for hydrazine detection owing to its ability to detect a small amount of hydrazine without derivatization. Here, we have investigated the electrocatalytic activity of layered birnessite manganese oxides (MnO2) with different intercalants (Li+, Na+, and K+) as the sensor for hydrazine detection. The birnessite MnO2 with Li+ as an intercalant (Li-Bir) displays a lower oxidation peak potential, indicating a catalytic activity higher than the activities of others. The standard heterogeneous electron transfer rate constant of hydrazine oxidation at the Li-Bir electrode is 1.09- and 1.17-fold faster than those at the Na-Bir and K-Bir electrodes, respectively. In addition, the number of electron transfers increases in the following order: K-Bir (0.11 mol) < Na-Bir (0.17 mol) < Li-Bir (0.55 mol). On the basis of the density functional theory calculation, the Li-Bir sensor can strongly stabilize the hydrazine molecule with a large adsorption energy (-0.92 eV), leading to high electrocatalytic activity. Li-Bir also shows the best hydrazine detection performance with the lowest limit of detection of 129 nM at a signal-to-noise ratio of ∼3 and a linear range of 0.007-10 mM at a finely tuned rotation speed of 2000 rpm. Additionally, the Li-Bir sensor exhibits excellent sensitivity, which can be used to detect traces of hydrazine without any effect of interference at high concentrations and in real aqueous-based samples, demonstrating its practical sensing applications.
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Affiliation(s)
- Phatsawit Wuamprakhon
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Atiweena Krittayavathananon
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Soracha Kosasang
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Nattapol Ma
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Thana Maihom
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand.,Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Jumras Limtrakul
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Narong Chanlec
- Synchrotron Light Research Institute (Public Organization), 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand
| | - Pinit Kidkhunthod
- Synchrotron Light Research Institute (Public Organization), 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand
| | - Montree Sawangphruk
- Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
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80
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A Simple but Efficient Voltammetric Sensor for Simultaneous Detection of Tartrazine and Ponceau 4R Based on TiO2/Electro-Reduced Graphene Oxide Nanocomposite. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8030070] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this work, we report a simple but efficient voltammetric sensor for simultaneous detection of ponceau 4R and tartrazine based on TiO2/electro-reduced graphene oxide nanocomposites (TiO2/ErGO). TiO2/ErGO nanocomposites were prepared by ultrasonically dispersing TiO2 nanoparticles (TiO2 NPs) into graphene oxide (GO) solution followed by a green in-situ electrochemical reduction. TiO2 NPs were uniformly supported on ErGO nanoflakes, which provides a favorable interface for the adsorption and subsequent oxidation of target analytes. TiO2/ErGO showed remarkable electrocatalytic capacity for the oxidation of ponceau 4R and tartrazine, with minimized oxidation overpotentials and boosted adsorptive striping differential pulse voltammetric (AdSDPV) response peak currents. Under the optimal experimental conditions, the anodic peak currents of ponceau 4R and tartrazine increase linearly with the respective natural logarithm of concentrations from 0.01 to 5.0 μM. The detection limits (LOD = 3σ/s) for ponceau 4R and tartrazine are 4.0 and 6.0 nM, respectively. The extraordinary analytical properties of TiO2/ErGO/GCE are primarily attributed to the synergistic enhancement effect from ErGO nanoflakes and TiO2 NPs. Moreover, the proposed TiO2/ErGO/GCE achieves reliable determination of ponceau 4R and tartrazine in orange juice with excellent selectively, reproducibility and stability. Together with simplicity, rapidness, and low cost, the proposed sensor demonstrates great potential for on-site detection of azo colorants.
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81
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Wu Y, Deng P, Tian Y, Feng J, Xiao J, Li J, Liu J, Li G, He Q. Simultaneous and sensitive determination of ascorbic acid, dopamine and uric acid via an electrochemical sensor based on PVP-graphene composite. J Nanobiotechnology 2020; 18:112. [PMID: 32778119 PMCID: PMC7419206 DOI: 10.1186/s12951-020-00672-9] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/05/2020] [Indexed: 12/31/2022] Open
Abstract
A method with high sensitivity, good accuracy and fast response is of ever increasing importance for the simultaneous detection of AA, DA and UA. In this paper, a simple and sensitive electrochemical sensor, which based on the polyvinylpyrrolidone (PVP)-graphene composite film modified glassy carbon electrode (PVP-GR/GCE), was presented for detecting ascorbic acid (AA), dopamine (DA) and uric acid (UA) simultaneously. The PVP-GR/GCE has excellent electrocatalytic activity for the oxidation of AA, DA and UA. The second-order derivative linear sweep voltammetry was used for the electrochemical measurements. The peak potential differences of DA-AA, DA-UA, and UA-AA (measured on the PVP-GR/GCE) were 212, 130 and 342 mV respectively. Besides, the over potential of AA, DA and UA reduced obviously, so did the peak current increase. Under the optimum conditions, the linear ranges of AA, DA and UA were 4.0 μM–1.0 mM, 0.02–100 μM, and 0.04–100 μM, respectively. The detection limits were 0.8 μM, 0.002 μM and 0.02 μM for AA, DA, and UA. The electrochemical sensor presented the advantages of high sensitivity and selectivity, excellent reproducibility and long-term stability. Furthermore, the sensor was successfully applied to the analysis of real samples.![]()
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Affiliation(s)
- Yiyong Wu
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China.,Key Laboratory of Functional Metal-Organic Compounds of Hunan Province; Key Laboratory of Functional Organometallic Materials of Hunan Provincial Universities, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, China
| | - Peihong Deng
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province; Key Laboratory of Functional Organometallic Materials of Hunan Provincial Universities, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, China.
| | - Yaling Tian
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China.,Key Laboratory of Functional Metal-Organic Compounds of Hunan Province; Key Laboratory of Functional Organometallic Materials of Hunan Provincial Universities, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, China
| | - Jinxia Feng
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Jingyun Xiao
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Junhua Li
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province; Key Laboratory of Functional Organometallic Materials of Hunan Provincial Universities, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang, 421008, China
| | - Jun Liu
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Guangli Li
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Quanguo He
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China. .,School of Materials Science and Energy Engineering, Foshan University, Foshan, 528000, China.
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82
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Peng G, Yu Y, Chen X, Huang H. Highly Sensitive Amperometric α-Ketoglutarate Biosensor Based on Reduced Graphene Oxide-Gold Nanocomposites. Int J Anal Chem 2020; 2020:4901761. [PMID: 32802061 PMCID: PMC7416262 DOI: 10.1155/2020/4901761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/31/2020] [Accepted: 06/15/2020] [Indexed: 11/24/2022] Open
Abstract
Herein, a rapid and highly sensitive amperometric biosensor for the detection of α-ketoglutarate (α-KG) was constructed via an electrochemical approach, in which the glutamate dehydrogenase (GLUD) was modified on the surface of reduced graphene oxide-gold nanoparticle composite (rGO-Aunano composite). The rGO-Aunano composite was one-step electrodeposited onto glassy carbon electrode (GCE) surface and was characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and electrochemical techniques. In addition, the rGO-Aunano/GCE was also found to electrocatalyze the oxidation of β-nicotinamide adenine dinucleotide (NADH) at the peak potential of 0.3 V, which was negatively shifted compared with that at bare GCE or Aunano/GCE, illustrating better catalytic performance of rGO-Aunano. After the modification of GLUD, the GLUD/rGO-Aunano/GCE led to effective amperometric detection of α-KG through monitoring the NADH consumption and displayed a linear response in the range of 66.7 and 494.5 μM, with the detection limit of 9.2 μM. Moreover, the prepared GLUD/rGO-Aunano/GCE was further evaluated to be highly selective and used to test α-KG in human serum samples. The recovery and the RSD values were calculated in the range of 97.9-102.4% and 3.8-4.5%, respectively, showing a great prospect for its real application.
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Affiliation(s)
- Gang Peng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
- College of Food Engineering, Anhui Science and Technology University, Fengyang 233100, China
| | - Yadong Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Xiaojun Chen
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, China
| | - He Huang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
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83
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Jung W, Uddin MJ, Namkoong K, Chung W, Kim JH, Shim JS. Toward a disposable low-cost LOC device: heterogeneous polymer micro valve and pump fabricated by UV/ozone-assisted thermal fusion bonding. RSC Adv 2020; 10:28390-28396. [PMID: 35519138 PMCID: PMC9055662 DOI: 10.1039/d0ra03830j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/23/2020] [Indexed: 12/26/2022] Open
Abstract
Herein, a heterogeneous polymer micro valve and pump with a polypropylene (PP) membrane was developed in a low-cost manner via UV/ozone-assisted thermal fusion bonding. The proposed fabrication technique allowed for a geometrically selective bonding; consequently, the membrane was prevented from bonding with the valve seat of the diaphragm micro-valve, without patterning a protection layer or introducing an additional structure. The developed device withstands 480 kPa of static pressure and up to 350 kPa of a vibration pressure, providing sufficient bonding strength for microfluidic actuations. The fabricated micro valve and pump are fully characterized and compared with a poly(dimethylsiloxane) (PDMS) membrane glass device, showing comparable valving and pumping performance. As a result, the robust PP membrane micro valve and pump are simply implemented in a facile manner, and demonstrated excellent performance, which is highly desirable for mass production of disposable lab-on-a-chip (LOC) devices. Herein, a heterogeneous polymer micro valve and pump with a polypropylene (PP) membrane was developed in a low-cost manner via UV/ozone-assisted thermal fusion bonding.![]()
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Affiliation(s)
- Wonjong Jung
- Healthcare Sensor Lab., Device Research Centre, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd. Suwon Gyeonggi-do 16678 Republic of Korea
| | - M Jalal Uddin
- Bio-IT Convergence Lab., Department of Electronics and Convergence Engineering, Kwangwoon University Seoul 01897 Republic of Korea .,Department of Electrical and Electronic Engineering, Islamic University Kushtia-7003 Bangladesh
| | - Kak Namkoong
- Healthcare Sensor Lab., Device Research Centre, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd. Suwon Gyeonggi-do 16678 Republic of Korea
| | - Wonseok Chung
- BioNano Health Guard Research Centre Daejeon 34141 Republic of Korea
| | - Joon-Ho Kim
- Sensor Lab., Smart Device Team, Samsung Research, Samsung Electronics Co., Ltd. Seoul 06765 Republic of Korea +82-10-41213075
| | - Joon S Shim
- Bio-IT Convergence Lab., Department of Electronics and Convergence Engineering, Kwangwoon University Seoul 01897 Republic of Korea
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84
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Facile Fabrication of CeO2/Electrochemically Reduced Graphene Oxide Nanocomposites for Vanillin Detection in Commercial Food Products. NANOMATERIALS 2020; 10:nano10071356. [PMID: 32664495 PMCID: PMC7408163 DOI: 10.3390/nano10071356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/02/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022]
Abstract
In this paper, CeO2 nanoparticles were synthesized by the solvothermal method and dispersed uniformly in graphene oxide (GO) aqueous solution by ultrasonication. The homogeneous CeO2-GO dispersion was coated on the surface of a glassy carbon electrode (GCE), and the CeO2/electrochemically reduced graphene oxide modified electrode (CeO2/ERGO/GCE) was obtained by potentiostatic reduction. The results of X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) showed that CeO2 nanocrystals were uniformly coated by gossamer like ERGO nanosheets. The electrochemical behavior of vanillin on the CeO2/ERGO/GCE was studied by cyclic voltammetry (CV). It was found that the CeO2/ERGO/GCE has high electrocatalytic activity and good electrochemical performance for vanillin oxidation. Using the second derivative linear sweep voltammetry (SDLSV), the CeO2/ERGO/GCE provides a wide range of 0.04–20 µM and 20 µM–100 µM for vanillin detection, and the detection limit is estimated to be 0.01 µM after 120 s accumulation. This method has been successfully applied to the vanillin detection in some commercial foods.
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85
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Lu Z, Shi Z, Huang S, Zhang R, Li G, Hu Y. Covalent organic framework derived Fe3O4 / N co-doped hollow carbon nanospheres modified electrode for simultaneous determination of biomolecules in human serum. Talanta 2020; 214:120864. [DOI: 10.1016/j.talanta.2020.120864] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/19/2020] [Accepted: 02/22/2020] [Indexed: 12/13/2022]
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86
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Xu J, Du G, Tong C, Xie S, Tan H, Xu L, Li N. Controlled synthesis and panchromatic printing of highly luminescent NaYF4:Ln3+ upconversion hollow microtubes for information encryption on various packaging substrates. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112518] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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87
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Sobhanie E, Faridbod F, Hosseini M, Ganjali MR. An Ultrasensitive ECL Sensor Based on Conducting Polymer/Electrochemically Reduced Graphene Oxide for Non‐Enzymatic Detection in Biological Samples. ChemistrySelect 2020. [DOI: 10.1002/slct.202000233] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- E. Sobhanie
- Center of Excellence in Electrochemistry, Faculty of ChemistryUniversity of Tehran Tehran Iran
| | - F. Faridbod
- Center of Excellence in Electrochemistry, Faculty of ChemistryUniversity of Tehran Tehran Iran
| | - M. Hosseini
- Department of Life Science Engineering, Faculty of New Sciences & TechnologiesUniversity of Tehran Tehran Iran
| | - M. R. Ganjali
- Center of Excellence in Electrochemistry, Faculty of ChemistryUniversity of Tehran Tehran Iran
- Biosensor Research Center, Endocrinology &Metabolism Molecular and Cellular Research Institute, Tehran University of Medical Sciences Tehran Iran
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88
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Li Z, Qian W, Guo H, Jin R, Taoliu J, Zheng J. Sensitive electrochemical sensing platform for selective determination of dopamine based on amorphous cobalt hydroxide/polyaniline nanofibers composites. NANOTECHNOLOGY 2020; 31:275501. [PMID: 32224515 DOI: 10.1088/1361-6528/ab84a2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, amorphous cobalt hydroxide/polyaniline nanofibers (Co(OH)2/PANINF) composites were successfully prepared. The formation of amorphous Co(OH)2 with irregular surface structure was confirmed by x-ray diffraction, scanning electron microscopy, and selected-area electron diffraction. The non-enzymatic electrochemical sensor for the selective and sensitive determination of dopamine (DA) has been constructed by using Co(OH)2/PANINF composites modified glassy carbon electrode (Co(OH)2/PANINF/GCE), which exhibited excellent electrocatalytic activity toward DA, in a large part owing to the advantages of large surface area of amorphous Co(OH)2 and the synergetic effect between Co(OH)2 and PANINF. The electrochemical kinetics reveal that the DA oxidation involves two electrons and two protons in a quasi-reversible electrode reaction. Differential pulse voltammetry (DPV) studies show remarkable sensing performance for the determination of DA, with a low detection limit of 0.03 μM, and a wide linear range from 0.1 to 200 μM. From a broader perspective, the present study demonstrates that Co(OH)2/PANINF composites would be promising supporting materials for novel sensing platforms.
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Affiliation(s)
- Zhi Li
- College of Pharmacy, Shaanxi Key Laboratory of Basic and New Herbal Medicament Research, Shaanxi University of Chinese Medicine, XianYang 712046, People's Republic of China
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89
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Wang L, Yang R, Qu L, Harrington PDB. Electrostatic repulsion strategy for high-sensitive and selective determination of dopamine in the presence of uric acid and ascorbic acid. Talanta 2020; 210:120626. [PMID: 31987198 DOI: 10.1016/j.talanta.2019.120626] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 02/07/2023]
Abstract
In this work, poly(sodium 4-styrenesulfonate)-functionalized three-dimensional graphene (PFSG) composites were realized via a facile and green strategy. The nanocomposite was characterized by scanning electron microscopy, ultraviolet and visible spectroscopy, X-ray photoelectron spectroscopy, and electrochemical method. An electroanalytical sensor of dopamine (DA) with high sensitivity and selectivity was fabricated based on PFSG modified glassy carbon electrode (GCE). Under the optimum conditions, the negatively charged PFSG composites exhibit strong electrostatic attraction for DA and electrostatic repulsion to the negatively charged ascorbic acid (AA) and uric acid (UA) molecules. Such electrostatic interaction hindered the enrichment of AA and UA on the surface of PSFG/GCE, which make a higher selectivity for the DA even in the presence of 120-fold AA and UA. Owing to the enhanced electron transfer rate and the stronger surface attraction, the current signal of DA on PFSG/GCE was about 160 times enhanced compared with the bare electrode. There was a good linear relationship between the reduction peak current of DA and concentration across the range of 0.002-2.0 μmol L-1 and 2.0-10.0 μmol L-1 with the limit of 0.8 nmol L-1. Further, the PFSG/GCE was applied to the detection of DA in human serum samples. This biosensor is simple, sensitive, selective and highly stable, which provided a new design strategy and a valuable tool to detect DA in complex samples.
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Affiliation(s)
- Ling Wang
- College of Chemistry and Chemical Engineering, Zhengzhou Normal University, Zhengzhou, 450044, PR China; College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Ran Yang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Lingbo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Peter de B Harrington
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry, OHIO University, Athens, OH, 45701-2979, USA
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90
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Fooladi E, Razavizadeh BM, Noori M, Kakooei S. Application of carboxylic acid-functionalized of graphene oxide for electrochemical simultaneous determination of tryptophan and tyrosine in milk. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2332-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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91
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Kamal Eddin FB, Wing Fen Y. Recent Advances in Electrochemical and Optical Sensing of Dopamine. SENSORS (BASEL, SWITZERLAND) 2020; 20:E1039. [PMID: 32075167 PMCID: PMC7071053 DOI: 10.3390/s20041039] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022]
Abstract
Nowadays, several neurological disorders and neurocrine tumours are associated with dopamine (DA) concentrations in various biological fluids. Highly accurate and ultrasensitive detection of DA levels in different biological samples in real-time can change and improve the quality of a patient's life in addition to reducing the treatment cost. Therefore, the design and development of diagnostic tool for in vivo and in vitro monitoring of DA is of considerable clinical and pharmacological importance. In recent decades, a large number of techniques have been established for DA detection, including chromatography coupled to mass spectrometry, spectroscopic approaches, and electrochemical (EC) methods. These methods are effective, but most of them still have some drawbacks such as consuming time, effort, and money. Added to that, sometimes they need complex procedures to obtain good sensitivity and suffer from low selectivity due to interference from other biological species such as uric acid (UA) and ascorbic acid (AA). Advanced materials can offer remarkable opportunities to overcome drawbacks in conventional DA sensors. This review aims to explain challenges related to DA detection using different techniques, and to summarize and highlight recent advancements in materials used and approaches applied for several sensor surface modification for the monitoring of DA. Also, it focuses on the analytical features of the EC and optical-based sensing techniques available.
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Affiliation(s)
- Faten Bashar Kamal Eddin
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia
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92
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Li G, Wu J, Jin H, Xia Y, Liu J, He Q, Chen D. Titania/Electro-Reduced Graphene Oxide Nanohybrid as an Efficient Electrochemical Sensor for the Determination of Allura Red. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E307. [PMID: 32054018 PMCID: PMC7075179 DOI: 10.3390/nano10020307] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 01/28/2023]
Abstract
Titania/electro-reduced graphene oxide nanohybrids (TiO2/ErGO) were synthesized by the hydrolysis of titanium sulfate in graphene oxide suspension and in situ electrochemical reduction. It provides a facile and efficient method to obtain nanohybrids with TiO2 nanoparticles (TiO2 NPs) uniformly coated by graphene nanoflakes. TiO2/ErGO nanohybrids were characterized by transmission electron microscopy, X-ray diffraction, cyclic voltammogram, and electrochemical impedance spectroscopy in detail. Compared with pure ErGO and TiO2 NPs, TiO2/ErGO nanohybrids greatly enhanced the electrocatalytic activity and voltammetric response of Allura Red. In the concentration range of 0.5-5.0 μM, the anodic peak currents of Allura Red were linearly correlated to their concentrations. However, the linear relationship was changed to the semi-logarithmic relationship at a higher concentration region (5.0-800 μM). The detection limit (LOD) was 0.05 μM at a signal-to-noise ratio of 3. The superior sensing performances of the proposed sensor can be ascribed to the synergistic effect between TiO2 NPs and ErGO, which provides a favorable microenvironment for the electrochemical oxidation of Allura Red. The proposed TiO2/ErGO/GCE showed good reproducibility and stability both in determination and in storage, and it can accurately detect the concentration of Allura Red in milk drinks, providing an efficient platform for the sensitive determination of Allura Red with high reliability, simplicity, and rapidness.
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Affiliation(s)
- Guangli Li
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.W.); (J.L.); (Q.H.)
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China
| | - Jingtao Wu
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.W.); (J.L.); (Q.H.)
| | - Hongguang Jin
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China;
| | - Yonghui Xia
- Zhuzhou Institute for Food and Drug Control, Zhuzhou 412000, China;
| | - Jun Liu
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.W.); (J.L.); (Q.H.)
| | - Quanguo He
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.W.); (J.L.); (Q.H.)
| | - Dongchu Chen
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China
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93
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Waqas M, Lan J, Zhang X, Fan Y, Zhang P, Liu C, Jiang Z, Wang X, Zeng J, Chen W. Fabrication of Non‐enzymatic Electrochemical Glucose Sensor Based on Pd−Mn Alloy Nanoparticles Supported on Reduced Graphene Oxide. ELECTROANAL 2020. [DOI: 10.1002/elan.201900705] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Muhammad Waqas
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Jianjun Lan
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Xiaoxia Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Panyu Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Chengzhou Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Zhe Jiang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Xiaoqu Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Jianqiang Zeng
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 Jilin China
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94
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Rapid recognition and determination of tryptophan by carbon nanotubes and molecularly imprinted polymer-modified glassy carbon electrode. Bioelectrochemistry 2020; 131:107393. [DOI: 10.1016/j.bioelechem.2019.107393] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 12/13/2022]
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95
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Xiao L, Jia L, Zhao S, Tang X, Zhu C, Huang H, Jiang J, Li M. Solvent-free synthesis of sheet-like carbon coated MnO with three-dimensional porous structure for simultaneous detection of dopamine and uric acid. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113823] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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96
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He Q, Liu J, Feng J, Wu Y, Tian Y, Li G, Chen D. Sensitive Voltammetric Sensor for Tryptophan Detection by Using Polyvinylpyrrolidone Functionalized Graphene/GCE. NANOMATERIALS 2020; 10:nano10010125. [PMID: 31936567 PMCID: PMC7023250 DOI: 10.3390/nano10010125] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 12/26/2019] [Accepted: 01/07/2020] [Indexed: 01/22/2023]
Abstract
In this paper, an electrochemical method for the measurement of tryptophan (Trp) was developed based on a glassy carbon electrode modified with polyvinylpyrrolidonefunctionalized graphene (PVP-GR)/glassy carbon electrode (GCE). In 0.1 M phosphate buffer solution (PBS, pH = 2.2), compared with bare GCE, PVP/GCE, and GR/GCE, the oxidation peak current of Trp increased dramatically at PVP-GR/GCE. The oxidation mechanism of Trp on the PVP-GR/GCE was discussed and the experimental conditions were optimized. Under the best experimental conditions, the oxidation peak current of Trp was proportional to its concentration in the range of 0.06 µM–10.0 µM and 10.0–100.0 µM, and the limit of detection (LOD) was 0.01 µM (S/N = 3). The target modified electrode with excellent repeatability, stability and selectivity, was successfully applied to detectTrp in drugs and biological samples.
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Affiliation(s)
- Quanguo He
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China;
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
| | - Jun Liu
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
- Correspondence: (J.L.); (D.C.); Tel./Fax: +86-731-2218-3383 (D.C.)
| | - Jinxia Feng
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
| | - Yiyong Wu
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
| | - Yaling Tian
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
| | - Guangli Li
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; (J.F.); (Y.W.); (Y.T.); (G.L.)
| | - Dongchu Chen
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China;
- Correspondence: (J.L.); (D.C.); Tel./Fax: +86-731-2218-3383 (D.C.)
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97
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Electrochemical Sensing Fabricated with Ta 2O 5 Nanoparticle-Electrochemically Reduced Graphene Oxide Nanocomposite for the Detection of Oxytetracycline. Biomolecules 2020; 10:biom10010110. [PMID: 31936417 PMCID: PMC7022662 DOI: 10.3390/biom10010110] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/30/2019] [Accepted: 01/04/2020] [Indexed: 12/29/2022] Open
Abstract
A novel tantalum pentoxide nanoparticle-electrochemically reduced graphene oxide nanocomposite-modified glassy carbon electrode (Ta2O5-ErGO/GCE) was developed for the detection of oxytetracycline in milk. The composition, structure and morphology of GO, Ta2O5, and Ta2O5-ErGO were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Oxytetracycline electrochemical behavior on the bare GCE, GO/GCE, ErGO/GCE, and Ta2O5-ErGO/GCE was studied by cyclic voltammetry. The voltammetric conditions (including scan rate, pH, deposition potential, and deposition time) were systematically optimized. With the spacious electrochemical active area, the Ta2O5-ErGO/GCE showed a great magnification of the oxidation signal of oxytetracycline, while that of the other electrodes (GCE, GO/GCE, ErGO/GCE) could not reach the same level. Under the optimum conditions, the currents were proportional to the oxytetracycline concentration in the range from 0.2 to 10 μM, and a low detection limit of 0.095 μM (S/N = 3) was detectable. Moreover, the proposed Ta2O5-ErGO/GCE performed practically with satisfactory results. The preparation of Ta2O5-ErGO/GCE in the current work provides a minor outlook of detecting trace oxytetracycline in milk.
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98
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Li Z, Kang Q, Chen L, Zhang B, Zou G, Shen D. Enhancing aqueous stability and radiative-charge-transfer efficiency of CsPbBr3 perovskite nanocrystals via conductive silica gel coating. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135332] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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99
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Khan MZH, Ahommed MS, Daizy M. Detection of xanthine in food samples with an electrochemical biosensor based on PEDOT:PSS and functionalized gold nanoparticles. RSC Adv 2020; 10:36147-36154. [PMID: 35517073 PMCID: PMC9056998 DOI: 10.1039/d0ra06806c] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/21/2020] [Indexed: 01/24/2023] Open
Abstract
An innovative biosensor assembly relying on glassy carbon electrodes modified with nanocomposites consisting of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as a host matrix with functionalized gold nanoparticles (GCE/PEDOT:PSS-AuNPs) is presented for the selective and sensitive detection of xanthine (XA). The developed sensor was successfully applied for the quantification of XA in the presence of significant interferents like hypoxanthine (HXA) and uric acid (UA). Different spectroscopy and electron microscopy analyses were done to characterize the as-prepared nanocomposite. Calibration responses for the quantification of XA was linear from 5.0 × 10−8 to 1.0 × 10−5 M (R2 = 0.994), with a detection limit as low as 3.0 × 10−8 (S/N = 3). Finally, the proposed sensor was applied for the analyses of XA content in commercial fish and meat samples and satisfactory recovery percentage was obtained. An innovative biosensor with glassy carbon electrodes modified with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate nanocomposites as a host matrix with functionalized gold nanoparticles for the selective and sensitive detection of xanthine.![]()
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Affiliation(s)
- M. Z. H. Khan
- Dept. of Chemical Engineering
- Jashore University of Science and Technology
- Jashore 7408
- Bangladesh
| | - M. S. Ahommed
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - M. Daizy
- Dept. of Chemical Engineering
- Jashore University of Science and Technology
- Jashore 7408
- Bangladesh
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100
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Li J, Shen H, Yu S, Zhang G, Ren C, Hu X, Yang Z. Synthesis of a manganese dioxide nanorod-anchored graphene oxide composite for highly sensitive electrochemical sensing of dopamine. Analyst 2020; 145:3283-3288. [DOI: 10.1039/d0an00348d] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel manganese dioxide nanorod-anchored graphene oxide (MnO2 NRs/GO) composite was synthesized by a simple hydrothermal method for the development of a highly sensitive electrochemical sensor for dopamine.
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Affiliation(s)
- Juan Li
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P.R. China
| | - Huifang Shen
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P.R. China
| | - Suhua Yu
- Guangling College
- Yangzhou University
- Yangzhou 225002
- P.R. China
| | - Geshan Zhang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Chuanli Ren
- Clinical Medical College
- Yangzhou University
- Yangzhou
- P.R. China
| | - Xiaoya Hu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P.R. China
| | - Zhanjun Yang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P.R. China
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