Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour
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...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2016-04-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.7.44 |
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| author | Saurav Kumar Sudeshna Bagchi Senthil Prasad Anupma Sharma Ritesh Kumar Rishemjit Kaur Jagvir Singh Amol P. Bhondekar |
| author_facet | Saurav Kumar Sudeshna Bagchi Senthil Prasad Anupma Sharma Ritesh Kumar Rishemjit Kaur Jagvir Singh Amol P. Bhondekar |
| author_sort | Saurav Kumar |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-23T04:37:21Z |
| format | Article |
| id | doaj.art-f564506b1cc6424ab22b2ced279145c8 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-23T04:37:21Z |
| publishDate | 2016-04-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-f564506b1cc6424ab22b2ced279145c82022-12-21T17:59:51ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862016-04-017150151010.3762/bjnano.7.442190-4286-7-44Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapourSaurav Kumar0Sudeshna Bagchi1Senthil Prasad2Anupma Sharma3Ritesh Kumar4Rishemjit Kaur5Jagvir Singh6Amol P. Bhondekar7CSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaCSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaCSIR- Institute of Microbial Technology, Sector 39A, Chandigarh 160036, India,CSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaCSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaCSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaResearch Services, University of Alberta, Edmonton, AB, Canada T6G2E1CSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaZinc 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.https://doi.org/10.3762/bjnano.7.44amphipolbacteriorhodopsinbio-hybridgas sensingITOZnO nanostructure |
| spellingShingle | Saurav Kumar Sudeshna Bagchi Senthil Prasad Anupma Sharma Ritesh Kumar Rishemjit Kaur Jagvir Singh Amol P. Bhondekar Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour Beilstein Journal of Nanotechnology amphipol bacteriorhodopsin bio-hybrid gas sensing ITO ZnO nanostructure |
| title | Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour |
| title_full | Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour |
| title_fullStr | Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour |
| title_full_unstemmed | Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour |
| title_short | Bacteriorhodopsin–ZnO hybrid as a potential sensing element for low-temperature detection of ethanol vapour |
| title_sort | bacteriorhodopsin zno hybrid as a potential sensing element for low temperature detection of ethanol vapour |
| topic | amphipol bacteriorhodopsin bio-hybrid gas sensing ITO ZnO nanostructure |
| url | https://doi.org/10.3762/bjnano.7.44 |
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