Ionic liquid of a gold nanocluster: a versatile matrix for electrochemical biosensors

ACS Nano
Kyuju KwakDongil Lee

Abstract

Ionic liquids are room-temperature molten salts that are increasingly used in electrochemical devices, such as batteries, fuel cells, and sensors, where their intrinsic ionic conductivity is exploited. Here we demonstrate that combining anionic, redox-active Au25 clusters with imidazolium cations leads to a stable ionic liquid possessing both ionic and electronic conductivity. The Au25 ionic liquid was found to act as a versatile matrix for amperometric enzyme biosensors toward the detection of glucose. Enzyme electrodes prepared by incorporating glucose oxidase in the Au25 ionic liquid show high electrocatalytic activity and substrate affinity. Au25 clusters in the electrode were found to act as effective redox mediators as well as electronic conductors determining the detection sensitivity. With the unique electrochemical properties and almost unlimited structural tunability, the ionic liquids of quantum-sized gold clusters may serve as versatile matrices for a variety of electrochemical biosensors.

References

Mar 23, 2001·Biosensors & Bioelectronics·D R ThévenotG S Wilson
Jan 30, 2003·Journal of the American Chemical Society·Dongil LeeRoyce W Murray
Apr 15, 2004·Angewandte Chemie·Fernando PatolskyItamar Willner
May 13, 2004·Journal of the American Chemical Society·Dongil LeeRoyce W Murray
Jan 31, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Pratibha PandeyBansi D Malhotra
Jun 5, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Junhyung KimDongil Lee
Dec 25, 2007·Chemical Reviews·Joseph Wang
Apr 15, 2008·Journal of the American Chemical Society·Manzhou ZhuRongchao Jin
May 10, 2008·Chemical Reviews·Adam Heller, Ben Feldman
Sep 1, 1989·Biotechnology and Bioengineering·A Chitnis, A Sadana
Jul 5, 2008·Proceedings of the National Academy of Sciences of the United States of America·Michael WalterHannu Häkkinen
Jan 2, 2009·Analytical Chemistry·Roohollah Torabi KachoosangiRichard G Compton
Mar 31, 2009·Biosensors & Bioelectronics·Jian-Ding QiuXing-Hua Xia
Jul 25, 2009·Nature Materials·Michel ArmandBruno Scrosati
Aug 14, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Ilina BaravikItamar Willner
Sep 15, 2009·The Journal of Physical Chemistry. B·Xiuming WuChenxin Cai
Dec 17, 2009·Journal of the American Chemical Society·Oleg VarnavskiTheodore Goodson
Jul 21, 2010·Nanoscale·Rongchao Jin
Aug 21, 2010·ACS Applied Materials & Interfaces·Chun Xian GuoChang Ming Li
Oct 12, 2010·Biosensors & Bioelectronics·Muhammad J A Shiddiky, Angel A J Torriero
Dec 3, 2010·Nature Chemistry·Olga Lopez-AcevedoHannu Häkkinen
Apr 5, 2011·Analytical Chemistry·S Senthil KumarDongil Lee
May 19, 2011·Chemistry : a European Journal·Rongchao JinHuifeng Qian
Nov 5, 2011·Journal of the American Chemical Society·J Todd HollandScott Banta
May 3, 2012·ACS Applied Materials & Interfaces·Sungwon LeeMillicent A Firestone
Jun 22, 2012·Nanoscale·Prasenjit MaityTatsuya Tsukuda
Sep 6, 2012·The Journal of Physical Chemistry Letters·Kyuju Kwak, Dongil Lee

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Citations

Sep 5, 2015·Physical Chemistry Chemical Physics : PCCP·Yoshiki NiihoriYuichi Negishi
Dec 19, 2015·Journal of the American Chemical Society·K R KrishnadasThalappil Pradeep
Aug 19, 2015·The Journal of Physical Chemistry Letters·Wataru KurashigeYuichi Negishi
Aug 19, 2015·The Journal of Physical Chemistry Letters·De-En JiangFlorian Weigend
May 15, 2015·Nanoscale·Sachil SharmaYuichi Negishi
May 4, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Radhika S Anaredy, Scott K Shaw
Jul 13, 2016·Chemistry : a European Journal·Shruti TrivediFrank V Bright
Jun 19, 2014·The Journal of Physical Chemistry Letters·Wataru KurashigeYuichi Negishi
Oct 25, 2016·Materials Science & Engineering. C, Materials for Biological Applications·K Thenmozhi, S Sriman Narayanan
Nov 1, 2016·Journal of the American Chemical Society·Mohammad J AlhilalyOsman M Bakr
Jan 10, 2017·Journal of the American Chemical Society·Shuo ZhaoRongchao Jin
Apr 4, 2017·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Yoshiki NiihoriYuichi Negishi
Jun 7, 2017·Chemical Reviews·Indranath Chakraborty, Thalappil Pradeep
May 9, 2018·Physical Chemistry Chemical Physics : PCCP·Milan RambukwellaAmala Dass
Oct 27, 2017·Nanoscale·Xuejuan ZouManzhou Zhu
Jul 4, 2018·Chemistry : a European Journal·Wan-Ting ChangC W Liu
Feb 21, 2016·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Shenghao XuXiliang Luo
Sep 14, 2017·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Siva Kumar-KrishnanM Meyyappan
Oct 11, 2017·Nanoscale·Christopher M SimsBryant C Nelson
Apr 21, 2016·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Siva Kumar-KrishnanM Meyyappan
Oct 7, 2020·Chemical Society Reviews·Hazhir TeymourianJoseph Wang
Nov 24, 2020·Biotechnology and Applied Biochemistry·Maryam BesharatiSaman Hosseinkhani
Jan 9, 2021·Journal of Colloid and Interface Science·Michael BenjaminSellappan Senthilkumar
Jan 1, 2021·Colloids and Surfaces. B, Biointerfaces·Manoharan MurphySellappan Senthilkumar
Apr 17, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Yihui DongXiaoyan Ji
Oct 4, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Milan Rambukwella, Amala Dass
Apr 10, 2017·ACS Biomaterials Science & Engineering·Akiho FuruyamaEiichi Tamiya
Jan 15, 2015·Journal of the American Chemical Society·Qiaofeng YaoJim Yang Lee

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