Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor
A glucose-responsive polymer brush was designed on a gold electrode and exploited as an extended gate for a field effect transistor (FET) based biosensor. A permittivity change at the gate interface due to the change in hydration upon specific binding with glucose was detectable. The rate of respons...
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doaj-6f3e28ac3b4241858d4608d52154baab2020-11-25T02:17:15ZengMDPI AGChemosensors2227-90402014-03-01229710710.3390/chemosensors2020097chemosensors2020097Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect TransistorAkira Matsumoto0Yusuke Tsurui1Hiroko Matsumoto2Yasuhiro Maeda3Toru Hoshi4Takashi Sawaguchi5Yuji Miyahara6Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, JapanDepartment of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308, JapanInstitute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, JapanInstitute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, JapanDepartment of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308, JapanDepartment of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308, JapanInstitute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, JapanA glucose-responsive polymer brush was designed on a gold electrode and exploited as an extended gate for a field effect transistor (FET) based biosensor. A permittivity change at the gate interface due to the change in hydration upon specific binding with glucose was detectable. The rate of response was markedly enhanced compared to the previously studied cross-linked or gel-coupled electrode, owing to its kinetics involving no process of the polymer network diffusion. This finding may offer a new strategy of the FET-based biosensors effective not only for large molecules but also for electrically neutral molecules such as glucose with improved kinetics.http://www.mdpi.com/2227-9040/2/2/97field effect transistorspermittivityDebye lengthstimuli-responsive polymers |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Akira Matsumoto Yusuke Tsurui Hiroko Matsumoto Yasuhiro Maeda Toru Hoshi Takashi Sawaguchi Yuji Miyahara |
spellingShingle |
Akira Matsumoto Yusuke Tsurui Hiroko Matsumoto Yasuhiro Maeda Toru Hoshi Takashi Sawaguchi Yuji Miyahara Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor Chemosensors field effect transistors permittivity Debye length stimuli-responsive polymers |
author_facet |
Akira Matsumoto Yusuke Tsurui Hiroko Matsumoto Yasuhiro Maeda Toru Hoshi Takashi Sawaguchi Yuji Miyahara |
author_sort |
Akira Matsumoto |
title |
Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor |
title_short |
Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor |
title_full |
Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor |
title_fullStr |
Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor |
title_full_unstemmed |
Chemo-Electrical Signal Transduction by Using Stimuli-Responsive Polymer Gate-Modified Field Effect Transistor |
title_sort |
chemo-electrical signal transduction by using stimuli-responsive polymer gate-modified field effect transistor |
publisher |
MDPI AG |
series |
Chemosensors |
issn |
2227-9040 |
publishDate |
2014-03-01 |
description |
A glucose-responsive polymer brush was designed on a gold electrode and exploited as an extended gate for a field effect transistor (FET) based biosensor. A permittivity change at the gate interface due to the change in hydration upon specific binding with glucose was detectable. The rate of response was markedly enhanced compared to the previously studied cross-linked or gel-coupled electrode, owing to its kinetics involving no process of the polymer network diffusion. This finding may offer a new strategy of the FET-based biosensors effective not only for large molecules but also for electrically neutral molecules such as glucose with improved kinetics. |
topic |
field effect transistors permittivity Debye length stimuli-responsive polymers |
url |
http://www.mdpi.com/2227-9040/2/2/97 |
work_keys_str_mv |
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1724887342738571264 |