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Bacteriorhodopsin-ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title Bacteriorhodopsin-ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour.
 
Creator Kumar, Saurav
Bagchi, Sudeshna
Prasad, E.Senthil
Sharma, Anupma
Kumar, Ritesh
Kaur, Rishemjit
Singh, Jagvir
Bhondekar, Amol P
 
Subject QR Microbiology
 
Description 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.
 
Publisher Beilstein-Institut zur Förderung der Chemischen Wissenschaften
 
Date 2016
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/1914/1/Beilstein_J_Nanotechnol-07-501.pdf
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
 
Relation https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901555/
http://crdd.osdd.net/open/1914/