creators_name: Kumar, Saurav
creators_name: Bagchi, Sudeshna
creators_name: Prasad, E.Senthil
creators_name: Sharma, Anupma
creators_name: Kumar, Ritesh
creators_name: Kaur, Rishemjit
creators_name: Singh, Jagvir
creators_name: Bhondekar, Amol P
type: article
datestamp: 2016-10-04 05:30:50
lastmod: 2016-10-04 05:44:05
metadata_visibility: show
title: Bacteriorhodopsin-ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour.
ispublished: pub
subjects: QR
keywords: amphipol, bacteriorhodopsin, bio-hybrid, gas sensing, ITO, ZnO nanostructure
note: Open Access
abstract: Zinc oxide (ZnO) and bacteriorhodopsin (bR) hybrid nanostructures were fabricated by immobilizing bR on ZnO thin films and ZnO nanorods. The morphological and spectroscopic analysis of the hybrid structures confirmed the ZnO thin film/nanorod growth and functional properties of bR. The photoactivity results of the bR protein further corroborated the sustainability of its charge transport property and biological activity. When exposed to ethanol vapour (reducing gas) at low temperature (70 °C), the fabricated sensing elements showed a significant increase in resistivity, as opposed to the conventional n-type behaviour of bare ZnO nanostructures. This work opens up avenues towards the fabrication of low temperature, photoactivated, nanomaterial-biomolecule hybrid gas sensors.
date: 2016
date_type: published
publication: Beilstein journal of nanotechnology
volume: 7
publisher:  Beilstein-Institut zur Förderung der Chemischen Wissenschaften
pagerange: 501-10
refereed: TRUE
issn: 2190-4286
official_url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901555/
citation:   Kumar, Saurav and Bagchi, Sudeshna and Prasad, E.Senthil and Sharma, Anupma and Kumar, Ritesh and Kaur, Rishemjit and Singh, Jagvir and Bhondekar, Amol P  (2016) Bacteriorhodopsin-ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour.  Beilstein journal of nanotechnology, 7.  pp. 501-10.  ISSN 2190-4286     
document_url: http://crdd.osdd.net/open/1914/1/Beilstein_J_Nanotechnol-07-501.pdf