Quantifying the effect of ionic screening with protein-decorated graphene transistors
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- 作者：Jinglei Pinga ; Jin Xic ; Jeffery G. Savenb ; Renyu Liuc ; A.T. Charlie Johnsona ; cjohnson@sas.upenn.edu" class="auth_mail" title="E-mail the corresponding author ; cjohnson@physics.upenn.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Graphene ; Redesigned GPCR ; Ionic screening ; Field effect transistor
- 刊名：Biosensors and Bioelectronics
- 出版年：2017
- 出版时间：15 March 2017
- 年：2017
- 卷：89
- 期：part_P1
- 页码：689-692
- 全文大小：264 K
文摘
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Graphene FET biosensors were created using a water soluble receptor protein.
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The Dirac voltage shift was related with the ionic strength of the buffer solution.
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The results quantitatively agree with an analytical model of electric double layer.