Fabrication and Photoresponse of Novel Carboxymethylcellulose (CMC) Based Bacteriorhodopsin (bR) Sensor

Vengadesh, P. and Majid, W.H.A. and Shanmugam, S.A. and Low, K.S. (2006) Fabrication and Photoresponse of Novel Carboxymethylcellulose (CMC) Based Bacteriorhodopsin (bR) Sensor. Organic Electronics, 7 (5). pp. 300-304. ISSN 1566-1199, DOI https://doi.org/10.1016/j.orgel.2006.03.012.

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A single-pixel dry-type reconstituted bacteriorhodopsin (bR) sensor (Au/CMC + bR/ITO) incorporating carboxyrnethylcellulose (CMC) as the artificial membrane is fabricated according to a protocol developed to investigate signal acquisition from the proposed biosensor. Droplets of reconstituted purple membrane (PM) containing bR applied onto a gel-like solution of CMC placed on gold electrodes (anode) are allowed to dry under an electric field, utilising the PM fragment's net negative charge and electric dipole moment. The resulting bR matrix thin film with high molecular orientation is finally sandwiched together with a semi-transparent indium titanium oxide (ITO) counter electrode and proper electrical connections made to form a single pixel bR-CMC photosensor. Efficient and reproducible photoresponse observed upon illumination clearly exhibits the potential of the proposed biosensor for future photosensing works. (C) 2006 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: Vengadesh, P. Abdul Majid, Wan Haliza Shanmugam, S. Anandan Low, K. S.
Uncontrolled Keywords: bacteriorhodopsin br-photosensor organic optoelectronic material light-driven proton pump light energy
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: miss munirah saadom
Date Deposited: 04 Jan 2013 15:51
Last Modified: 21 Oct 2014 03:58
URI: http://eprints.um.edu.my/id/eprint/5705

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