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LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications

BACKGROUND: Wettability is an important property of solid materials which can be controlled by surface energy. Dynamic control over the surface wettability is of great importance for biosensing applications. Zinc oxide (ZnO) is a biocompatible material suitable for biosensors and microfluidic device...

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Autores principales: Bhavsar, Kaushalkumar, Ross, Duncan, Prabhu, Radhakrishna, Pollard, Pat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Co-Action Publishing 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4390563/
https://www.ncbi.nlm.nih.gov/pubmed/25855065
http://dx.doi.org/10.3402/nano.v6.26711
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author Bhavsar, Kaushalkumar
Ross, Duncan
Prabhu, Radhakrishna
Pollard, Pat
author_facet Bhavsar, Kaushalkumar
Ross, Duncan
Prabhu, Radhakrishna
Pollard, Pat
author_sort Bhavsar, Kaushalkumar
collection PubMed
description BACKGROUND: Wettability is an important property of solid materials which can be controlled by surface energy. Dynamic control over the surface wettability is of great importance for biosensing applications. Zinc oxide (ZnO) is a biocompatible material suitable for biosensors and microfluidic devices. Nanowires of ZnO tend to show a hydrophobic nature which decelerates the adhesion or adsorption of biomolecules on the surface and, therefore, limits their application. METHODS: Surface wettability of the ZnO nanowires can be tuned using light irradiation. However, the control over wettability using light-emitting diodes (LEDs) and the role of wavelength in controlling the wettability of ZnO nanowires are unclear. This is the first report on LED-based wettability control of nanowires, and it includes investigations on tuning the desired wettability of ZnO nanowires using LEDs as a controlling tool. RESULTS: The investigations on spectral properties of the LED emission on ZnO nanowires’ wettability have shown strong dependency on the spectral overlap of LED emission on ZnO absorption spectra. Results indicate that LEDs offer an advanced control on dynamically tuning the wettability of ZnO nanowires. CONCLUSION: The spectral investigations have provided significant insight into the role of irradiating wavelength of light and irradiation time on the surface wettability of ZnO nanowires. This process is suitable to realize on chip based integrated sensors and has huge potential for eco-friendly biosensing and environmental sensing applications.
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spelling pubmed-43905632015-04-16 LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications Bhavsar, Kaushalkumar Ross, Duncan Prabhu, Radhakrishna Pollard, Pat Nano Rev Nanostruc 2014 BACKGROUND: Wettability is an important property of solid materials which can be controlled by surface energy. Dynamic control over the surface wettability is of great importance for biosensing applications. Zinc oxide (ZnO) is a biocompatible material suitable for biosensors and microfluidic devices. Nanowires of ZnO tend to show a hydrophobic nature which decelerates the adhesion or adsorption of biomolecules on the surface and, therefore, limits their application. METHODS: Surface wettability of the ZnO nanowires can be tuned using light irradiation. However, the control over wettability using light-emitting diodes (LEDs) and the role of wavelength in controlling the wettability of ZnO nanowires are unclear. This is the first report on LED-based wettability control of nanowires, and it includes investigations on tuning the desired wettability of ZnO nanowires using LEDs as a controlling tool. RESULTS: The investigations on spectral properties of the LED emission on ZnO nanowires’ wettability have shown strong dependency on the spectral overlap of LED emission on ZnO absorption spectra. Results indicate that LEDs offer an advanced control on dynamically tuning the wettability of ZnO nanowires. CONCLUSION: The spectral investigations have provided significant insight into the role of irradiating wavelength of light and irradiation time on the surface wettability of ZnO nanowires. This process is suitable to realize on chip based integrated sensors and has huge potential for eco-friendly biosensing and environmental sensing applications. Co-Action Publishing 2015-04-07 /pmc/articles/PMC4390563/ /pubmed/25855065 http://dx.doi.org/10.3402/nano.v6.26711 Text en © 2015 Kaushalkumar Bhavsar et al. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nanostruc 2014
Bhavsar, Kaushalkumar
Ross, Duncan
Prabhu, Radhakrishna
Pollard, Pat
LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title_full LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title_fullStr LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title_full_unstemmed LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title_short LED-controlled tuning of ZnO nanowires’ wettability for biosensing applications
title_sort led-controlled tuning of zno nanowires’ wettability for biosensing applications
topic Nanostruc 2014
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4390563/
https://www.ncbi.nlm.nih.gov/pubmed/25855065
http://dx.doi.org/10.3402/nano.v6.26711
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