Application of Graphene Oxide to the Construction of Electrochemical Biosensor for Environmental Monitoring

Li, Dan; Tong, Haixia; Li, Xin; An, Zhenyu; Li, Wenqi; Liu, Wei; Zhang, Xiaofeng; Wang, Qian

doi:10.1002/9781118663547.ch4

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…The unique electrochemical characteristics of GN, such as single-sheet nature, high conductivity, high surface area; exhibited high electron-transfer rate (low charge-transfer resistance of 160.8 Ω), wide dynamic range and lower oxidation/ reduction potentials (0.20/0.10 V), which are much better than graphite/GC and GCEs. Dan Li et al [68] prepared an electrode material using GNO on which dsDNA was efficiently immobilised, which is used as a sensor for environmental monitoring. The experimental results illustrate the electrochemical activity of DNA on the electrode facilitates the electron transfer between DNA and GNO electrode.…”

Section: Gn-based Dna Biosensorsmentioning

confidence: 99%

Graphene‐based biosensors: methods, analysis and future perspectives

Celik

Balachandran

Manivannan

2015

IET Circuits, Devices & Systems

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Graphene (GN), a single layer two-dimensional structure nanomaterial, exhibits exceptional physical, electrical and chemical properties that lead to many applications from electronics to biomedicine. The unique parameters of GN, notably its considerable electron mobility, thermal conductivity, high surface area and electrical conductivity, are bringing heightened attention into biomedical applications. This study assesses the recent advances in GN-based biosensors and its derivatives in different areas to focus on glucose sensing, DNA sensing, drug and gene delivery, cancer therapy and other related biomedical applications (electrochemical sensors, tissue engineering, haemoglobin and cholesterol sensing), together with a brief discussion on challenges and future perspectives in this rapidly developing field. † Graphite powders are initially oxidised by chemical modification to be dispersed in solution † Large-scale production for bulk applications, i.e. supercapacitors, composite materials † Serious structural defects epitaxial growth † A conversion of SiC substrate to GN via sublimation of silicon atoms on the surface † Done at very high temperature (∼1300°C) † Accessibility is limited due to high-end equipment CVD growth GN † Most promising, inexpensive and feasible method for single-layer GN synthesis † Using transition metal (Ni, Cu, Si) substrates † Can be scaled up for large area GN production for practical applications IET Circuits Devices Syst., pp. 1-12 2 This is an open

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Section: Gn-based Dna Biosensorsmentioning

confidence: 99%