Journal ArticleDOI
Nanoelectronic biosensors based on CVD grown graphene
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TLDR
Graphene is a promising candidate for the development of real-time nanoelectronic biosensors and is demonstrated the use of large-sized CVD grown graphene films configured as field-effect transistors for real- time biomolecular sensing.Abstract:
Graphene, a single-atom-thick and two-dimensional carbon material, has attracted great attention recently. Because of its unique electrical, physical, and optical properties, graphene has great potential to be a novel alternative to carbon nanotubes in biosensing. We demonstrate the use of large-sized CVD grown graphene films configured as field-effect transistors for real-time biomolecular sensing. Glucose or glutamate molecules were detected by the conductance change of the graphene transistor as the molecules are oxidized by the specific redox enzyme (glucose oxidase or glutamic dehydrogenase) functionalized onto the graphene film. This study indicates that graphene is a promising candidate for the development of real-time nanoelectronic biosensors.read more
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Biological and chemical sensors based on graphene materials
TL;DR: This article critically and comprehensively reviews the emerging graphene-based electrochemical sensors, electronic sensors, optical sensors, and nanopore sensors for biological or chemical detection and emphasizes on the underlying detection (or signal transduction) mechanisms.
Journal ArticleDOI
3D Graphene–Cobalt Oxide Electrode for High-Performance Supercapacitor and Enzymeless Glucose Detection
Xiaochen Dong,Hang Xu,Xuewan Wang,Yinxi Huang,Mary B. Chan-Park,Hua Zhang,Lianhui Wang,Wei Huang,Peng Chen +8 more
TL;DR: The 3D graphene/Co(3)O(4) composite was used as the monolithic free-standing electrode for supercapacitor application and for enzymeless electrochemical detection of glucose and it is demonstrated that it is capable of delivering high specific capacitance and detecting glucose with a ultrahigh sensitivity.
Journal ArticleDOI
Graphene nanosheet: synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications
Shaojun Guo,Shaojun Dong +1 more
TL;DR: This critical review, from the viewpoint of chemistry and materials, will cover recent significant advances in synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications of the "star-material" GN together with discussion on its major challenges and opportunities for future GN research.
Journal ArticleDOI
Recent advances in graphene-based biosensors
TL;DR: This review discusses the application of graphene for the detection of glucose, Cyt-c, NADH, Hb, cholesterol, AA, UA, DA, and H(2)O(2).
References
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Journal ArticleDOI
The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
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Detection of individual gas molecules adsorbed on graphene
Fred Schedin,A. K. Geim,Sergey V. Morozov,Ernie W. Hill,Peter Blake,Mikhail I. Katsnelson,K. S. Novoselov +6 more
TL;DR: In this paper, it was shown that micrometre-size sensors made from graphene are capable of detecting individual events when a gas molecule attaches to or detaches from graphene's surface.
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Large Area, Few-Layer Graphene Films on Arbitrary Substrates by Chemical Vapor Deposition
Alfonso Reina,Xiaoting Jia,John T. Ho,Daniel Nezich,Hyungbin Son,Vladimir Bulovic,Mildred S. Dresselhaus,Jing Kong +7 more
TL;DR: The transparency, conductivity, and ambipolar transfer characteristics of the films suggest their potential as another materials candidate for electronics and opto-electronic applications.
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Detection of Individual Gas Molecules Absorbed on Graphene
TL;DR: In this paper, it was shown that micrometre-size sensors made from graphene are capable of detecting individual events when a gas molecule attaches to or detaches from graphenes surface.
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A Graphene Platform for Sensing Biomolecules
TL;DR: Graphene oxide (GO) is used as a platform for the sensitive and selective detection of DNA and proteins and the interaction of GO and dye-labeled single-stranded DNA leads to quenching of the dye fluorescence.