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Li H, Xiao N, Jiang M, Long J, Li Z, Zhu Z. Advances of Transition Metal-Based Electrochemical Non-enzymatic Glucose Sensors for Glucose Analysis: A Review. Crit Rev Anal Chem 2024:1-37. [PMID: 38635407 DOI: 10.1080/10408347.2024.2339955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Glucose concentration is a crucial parameter for assessing human health. Over recent years, non-enzymatic electrochemical glucose sensors have drawn considerable attention due to their substantial progress. This review explores the common mechanism behind the transition metal-based electrocatalytic oxidation of glucose molecules through classical electrocatalytic frameworks like the Pletcher model and the Hydrous Oxide-Adatom Mediator model (IHOAM), as well as the redox reactions at the transition metal centers. It further compiles the electrochemical characterization techniques, associated formulas, and their ensuing conclusions pertinent to transition metal-based non-enzymatic electrochemical glucose sensors. Subsequently, the review covers the latest advancements in the field of transition metal-based active materials and support materials used in non-enzymatic electrochemical glucose sensors in the last decade (2014-2023). Additionally, it presents a comprehensive classification of representative studies according to the active metal catalysts components involved.
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Affiliation(s)
- Haotian Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Nan Xiao
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Mengyi Jiang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Jianjun Long
- Danyang Development Zone, Jiangsu Yuwell-POCT Biological Technology Co., Ltd, Danyang, China
| | - Zhanhong Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhigang Zhu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
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2
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Dinu LA, Kurbanoglu S. Enhancing electrochemical sensing through the use of functionalized graphene composites as nanozymes. NANOSCALE 2023; 15:16514-16538. [PMID: 37815527 DOI: 10.1039/d3nr01998e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Graphene-based nanozymes possess inherent nanomaterial properties that offer not only a simple substitute for enzymes but also a versatile platform capable of bonding with complex biochemical environments. The current review discusses the replacement of enzymes in developing biosensors with nanozymes. Functionalization of graphene-based materials with various nanoparticles can enhance their nanozymatic properties. Graphene oxide functionalization has been shown to yield graphene-based nanozymes that closely mimic several natural enzymes. This review provides an overview of the classification, current state-of-the-art development, synthesis routes, and types of functionalized graphene-based nanozymes for the design of electrochemical sensors. Furthermore, it includes a summary of the application of functionalized graphene-based nanozymes for constructing electrochemical sensors for pollutants, drugs, and various water and food samples. Challenges related to nanozymes as electrocatalytic materials are discussed, along with potential solutions and approaches for addressing these shortcomings.
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Affiliation(s)
- Livia Alexandra Dinu
- National Institute for Research and Development in Microtechnologies (IMT Bucharest), 126A Erou Iancu Nicolae Street, 077190 Voluntari, Ilfov, Romania
| | - Sevinc Kurbanoglu
- Faculty of Pharmacy, Department of Analytical Chemistry, Ankara University, 06560, Tandogan, Ankara, Türkiye.
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3
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Math C, Income K, Khachornsakkul K, Duenchay P, Dungchai W. A sensitive and facile electrochemical paper-based sensor for glucose detection in whole blood using the Pd/CB-Ni@rGO modified electrode. Analyst 2023; 148:4753-4761. [PMID: 37655604 DOI: 10.1039/d3an00879g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
We created novel Pd/CB-Ni@rGO nanomaterials for glucose detection. The as-synthesized nanomaterials were dropped on the electrode surface using the drop casting technique. The prepared electrode was then attached to a paper-based device containing the sample zone and the reaction zone, enabling plasma isolation and an enzymatic reaction for glucose detection in whole blood. The nanomaterials and surfaces of electrodes were characterized by FTIR, TEM, and SEM. The proposed approach is a disposable glucose detection method that is unaffected by protein fouling on the electrode, and it requires only one drop of human blood. Therefore, there is no need for extensive sample preparation, and there is less sample consumption. Under optimal conditions, Pd/CB-Ni@rGO can accurately measure blood glucose levels with a linear range of 7 to 7140 μM (R2 = 0.9986) and a low detection limit of 0.82 μM. Besides, the developed sensor shows excellent anti-interference capacity, stability, and satisfactory reproducibility and repeatability. Importantly, Pd/CB-Ni@rGO was successfully applied for glucose in whole blood from 4 volunteers, with results that correlated well with those obtained using an Accucheck glucometer at a 95% confidence level. Given its low cost, high accuracy, and ease of use, the blood glucose sensor holds significant potential for clinical use and broadens the area of future noninvasive sensor development.
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Affiliation(s)
- Chim Math
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.
| | - Kamolwich Income
- Office of Primary Industries and Mines, Region 3, Ministry of Industry, Chiang Mai, Thailand
| | - Kawin Khachornsakkul
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA
| | - Paweenar Duenchay
- Department of Industrial Engineering, Manufacturing Engineering, and Chemical Processes and Environment Engineering, Faculty of Engineering, Pathumwan Institute of Technology, 833 Rama 1Rd., Pathumwan, Bangkok 10330, Thailand
| | - Wijitar Dungchai
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.
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4
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Li QF, Chen X, Wang H, Liu M, Peng HL. Pt/MXene-Based Flexible Wearable Non-Enzymatic Electrochemical Sensor for Continuous Glucose Detection in Sweat. ACS APPLIED MATERIALS & INTERFACES 2023; 15:13290-13298. [PMID: 36862063 DOI: 10.1021/acsami.2c20543] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Wearable non-invasive sensors facilitate the continuous measurement of glucose in sweat for the treatment and management of diabetes. However, the catalysis of glucose and sweat sampling are challenges in the development of efficient wearable glucose sensors. Herein, we report a flexible wearable non-enzymatic electrochemical sensor for continuous glucose detection in sweat. We synthesized a catalyst (Pt/MXene) by the hybridization of Pt nanoparticles onto MXene (Ti3C2Tx) nanosheets with a broad linear range of glucose detection (0-8 mmol/L) under neutral conditions. Furthermore, we optimized the structure of the sensor by immobilizing Pt/MXene with a conductive hydrogel to enhance the stability of the sensor. Based on Pt/MXene and the optimized structure, we fabricated a flexible wearable glucose sensor by integrating a microfluidic patch for sweat collection onto a flexible sensor. We evaluated the utility of the sensor for the detection of glucose in sweat, and the sensor could detect the glucose change with the replenishment and consumption of energy by the body, and a similar trend was observed in the blood. An in vivo glucose test in sweat indicated that the fabricated sensor is promising for the continuous measurement of glucose, which is essential for the treatment and management of diabetes.
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Affiliation(s)
- Quan-Fu Li
- Guangxi Key Laboratory of Integrated Circuits and Microsystems, School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Xu Chen
- Guangxi Key Laboratory of Integrated Circuits and Microsystems, School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hai Wang
- Guangxi Key Laboratory of Nuclear Physics and Technology, College of Physics and Technology, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Ming Liu
- Guangxi Key Laboratory of Nuclear Physics and Technology, College of Physics and Technology, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hui-Ling Peng
- Guangxi Key Laboratory of Integrated Circuits and Microsystems, School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, People's Republic of China
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5
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Papanikolaou E, Simos YV, Spyrou K, Tzianni EI, Vezyraki P, Tsamis K, Patila M, Tigas S, Prodromidis MI, Gournis DP, Stamatis H, Peschos D, Dounousi E. Is graphene the rock upon which new era continuous glucose monitors could be built? Exp Biol Med (Maywood) 2023; 248:14-25. [PMID: 36408556 PMCID: PMC9989146 DOI: 10.1177/15353702221134105] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diabetes mellitus' (DM) prevalence worldwide is estimated to be around 10% and is expected to rise over the next decades. Monitoring blood glucose levels aims to determine whether glucose targets are met to minimize the risk for the development of symptoms related to high or low blood sugar and avoid long-term diabetes complications. Continuous glucose monitoring (CGMs) systems emerged almost two decades ago and have revolutionized the way diabetes is managed. Especially in Type 1 DM, the combination of a CGM with an insulin pump (known as a closed-loop system or artificial pancreas) allows an autonomous regulation of patients' insulin with minimal intervention from the user. However, there is still an unmet need for high accuracy, precision and repeatability of CGMs. Graphene was isolated in 2004 and found immediately fertile ground in various biomedical applications and devices due to its unique combination of properties including its high electrical conductivity. In the last decade, various graphene family nanomaterials have been exploited for the development of enzymatic and non-enzymatic biosensors to determine glucose in biological fluids, such as blood, sweat, and so on. Although great progress has been achieved in the field, several issues need to be addressed for graphene sensors to become a predominant material in the new era of CGMs.
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Affiliation(s)
- Eirini Papanikolaou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.,Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
| | - Yannis V Simos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.,Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantinos Spyrou
- Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Eleni I Tzianni
- Laboratory of Analytical Chemistry, University of Ioannina, 45110 Ioannina, Greece
| | - Patra Vezyraki
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantinos Tsamis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.,Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece
| | - Michaela Patila
- Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
| | - Stelios Tigas
- Department of Endocrinology, University of Ioannina, 45110 Ioannina, Greece
| | - Mamas I Prodromidis
- Laboratory of Analytical Chemistry, University of Ioannina, 45110 Ioannina, Greece.,Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
| | - Dimitrios P Gournis
- Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Haralambos Stamatis
- Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
| | - Dimitrios Peschos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.,Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece
| | - Evangelia Dounousi
- Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, 45110 Ioannina, Greece.,Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
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6
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Sohrabi H, Dezhakam E, Nozohouri E, Majidi MR, Orooji Y, Yoon Y, Khataee A. Advances in layered double hydroxide based labels for signal amplification in ultrasensitive electrochemical and optical affinity biosensors of glucose. CHEMOSPHERE 2022; 309:136633. [PMID: 36191760 DOI: 10.1016/j.chemosphere.2022.136633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/16/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Since the development of enzyme electrodes, the research area of glucose biosensing has seen outstanding progress and improvement. Numerous sensing platforms have been developed based on different immobilization techniques and improved electron transfer between the enzyme and electrode. Interestingly, these platforms have consistently used innovative nanostructures and nanocomposites. In recent years, layered double hydroxides (LDHs) have become key tools in the field of analytical chemistry owing to their outstanding features and benefits, such as facile synthesis, cost-effectiveness, substantial surface area, excellent catalytic performance, and biocompatibility. LDHs are often synthesized as nanomaterial composites or manufactured with specific three-dimensional structures. The purpose of this review is to illustrate the biosensing prospects of LDH-based glucose sensors and the need for improvement. First, various clinical and conventional approaches for glucose determination are discussed. The definitions, types, and various synthetic methodologies of LDHs are then explained. Subsequently, we discuss the various research studies regarding LDH-based electrochemical and optical assays, focusing on modified systems, improved electron transfers pathways (through developments in surface science), and different sensing designs based on nanomaterials. Finally, a summary of the current limitations and future challenges in glucose analysis is described, which may facilitate further development and applications.
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Affiliation(s)
- Hessamaddin Sohrabi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Ehsan Dezhakam
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Ehsan Nozohouri
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center (TTUHSC), Amarillo, TX, USA
| | - Mir Reza Majidi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yeojoon Yoon
- Department of Environmental and Energy Engineering, Yonsei University, Wonju, Republic of Korea
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey
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7
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Hu T, Gu Z, Williams GR, Strimaite M, Zha J, Zhou Z, Zhang X, Tan C, Liang R. Layered double hydroxide-based nanomaterials for biomedical applications. Chem Soc Rev 2022; 51:6126-6176. [PMID: 35792076 DOI: 10.1039/d2cs00236a] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Against the backdrop of increased public health awareness, inorganic nanomaterials have been widely explored as promising nanoagents for various kinds of biomedical applications. Layered double hydroxides (LDHs), with versatile physicochemical advantages including excellent biocompatibility, pH-sensitive biodegradability, highly tunable chemical composition and structure, and ease of composite formation with other materials, have shown great promise in biomedical applications. In this review, we comprehensively summarize the recent advances in LDH-based nanomaterials for biomedical applications. Firstly, the material categories and advantages of LDH-based nanomaterials are discussed. The preparation and surface modification of LDH-based nanomaterials, including pristine LDHs, LDH-based nanocomposites and LDH-derived nanomaterials, are then described. Thereafter, we systematically describe the great potential of LDHs in biomedical applications including drug/gene delivery, bioimaging diagnosis, cancer therapy, biosensing, tissue engineering, and anti-bacteria. Finally, on the basis of the current state of the art, we conclude with insights on the remaining challenges and future prospects in this rapidly emerging field.
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Affiliation(s)
- Tingting Hu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Zi Gu
- School of Chemical Engineering and Australian Centre for NanoMedicine (ACN), University of New South Wales, Sydney, NSW 2052, Australia
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Margarita Strimaite
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Jiajia Zha
- Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.
| | - Zhan Zhou
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.,School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong. .,Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong.,Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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8
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Current progress in organic–inorganic hetero-nano-interfaces based electrochemical biosensors for healthcare monitoring. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214282] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Kim A, Varga I, Adhikari A, Patel R. Recent Advances in Layered Double Hydroxide-Based Electrochemical and Optical Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2809. [PMID: 34835574 PMCID: PMC8624839 DOI: 10.3390/nano11112809] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022]
Abstract
Layered double hydroxides (LDHs) have attracted considerable attention as promising materials for electrochemical and optical sensors owing to their excellent catalytic properties, facile synthesis strategies, highly tunable morphology, and versatile hosting ability. LDH-based electrochemical sensors are affordable alternatives to traditional precious-metal-based sensors, as LDHs can be synthesized from abundant inorganic precursors. LDH-modified probes can directly catalyze or host catalytic compounds that facilitate analyte redox reactions, detected as changes in the probe's current, voltage, or resistance. The porous and lamellar structure of LDHs allows rapid analyte diffusion and abundant active sites for enhanced sensor sensitivity. LDHs can be composed of conductive materials such as reduced graphene oxide (rGO) or metal nanoparticles for improved catalytic activity and analyte selectivity. As optical sensors, LDHs provide a spacious, stable structure for synergistic guest-host interactions. LDHs can immobilize fluorophores, chemiluminescence reactants, and other spectroscopically active materials to reduce the aggregation and dissolution of the embedded sensor molecules, yielding enhanced optical responses and increased probe reusability. This review discusses standard LDH synthesis methods and overviews the different electrochemical and optical analysis techniques. Furthermore, the designs and modifications of exemplary LDHs and LDH composite materials are analyzed, focusing on the analytical performance of LDH-based sensors for key biomarkers and pollutants, including glucose, dopamine (DA), H2O2, metal ions, nitrogen-based toxins, and other organic compounds.
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Affiliation(s)
- Andrew Kim
- Department of Chemical Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA;
| | - Imre Varga
- Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary
| | | | - Rajkumar Patel
- Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
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10
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Shen M, Li W, Chen L, Chen Y, Ren S, Han D. NiCo-LDH nanoflake arrays-supported Au nanoparticles on copper foam as a highly sensitive electrochemical non-enzymatic glucose sensor. Anal Chim Acta 2021; 1177:338787. [PMID: 34482893 DOI: 10.1016/j.aca.2021.338787] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 10/21/2022]
Abstract
The detection of glucose in human blood is of great importance in the diagnosis and prevention of diabetes. In this work, we fabricated a novel electrochemical non-enzymatic glucose sensor, NiCo-LDH nanoflake arrays-supported Au nanoparticles on copper foam (NiCo-LDH@ Au/Cu) by galvanic replacement and electrodeposition methods. Owing to the synergistic effect of three-dimensional (3D) architecture of Cu foam, high electrocatalytic activity of Au nanoparticles and NiCo-LDH nanoflake arrays, the NiCo-LDH@Au/Cu electrode exhibits excellent electrocatalytic ability for glucose oxidation in NaOH solution. Under optimized conditions, the NiCo-LDH@Au/Cu electrode shows excellent activity with a linear range from 0.5 to 3000 μM at the potential of 0.50 V (vs. Ag/AgCl), a low detection limit of 0.23 μM (S/N = 3), an ultra-prompt response time of 0.5 s, and a high sensitivity of 23100 μA mM-1 cm-2, as well as good selectivity and stability. Furthermore, the as-fabricated non-enzymatic glucose sensor was successfully applied to the glucose detection in human serum as a promising candidate in the development of electrochemical non-enzymatic glucose sensor.
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Affiliation(s)
- Mao Shen
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China
| | - Wei Li
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China
| | - Lei Chen
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China
| | - Yuxiang Chen
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China
| | - Shibin Ren
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China.
| | - Deman Han
- College of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, China.
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11
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Okhokhonin AV, Tokmakova KO, Svalova TS, Matern AI, Kozitsina AN. Electrocatalytic oxidation of glucose in a neutral medium on an electrode modified by carboxylated multi-walled carbon nanotubes and by silver and palladium. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3204-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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