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Title: | Insights into the optical and anti-bacterial properties of biogenic PbSe quantum rods Optical and anti-bacterial properties of biogenic PbSe quantum rods |
Authors: | Jacob, J.M. Raj Mohan, Balakrishnan Akshay, Gowda, K.M. |
Issue Date: | 2016 |
Citation: | Journal of Saudi Chemical Society, 2016, Vol.20, 4, pp.480-485 |
Abstract: | The detailed optical properties of lead selenide (PbSe) quantum rods biosynthesized in marine Aspergillus terreus were apprehended theoretically using ab initio calculations based on the experimental absorption spectrum. These studies indicate that the absorption coefficient of the biosynthesized PbSe quantum rods increases linearly with incident photon energies. The variation of other optical constants like extinction coefficient, refractive index and reflectance was comparable to that of the chemically synthesized counterparts. Further, the high dielectric constant and remarkable fluorescence of the biogenic PbSe quantum rods pronounce their application in opto-electronic devices in the Near Infra-Red and Ultraviolet spectral regime. The biosynthesized PbSe quantum rods were also found to possess appreciable anti-bacterial activity against various gram positive and gram negative bacterial species thus enhancing the relevance of the same for practical utility. Based on these results it can be concluded that biogenic PbSe quantum rods can be envisaged as potential candidates for bio-imaging, bio-sensing and other photo-voltaic applications. 2014 The Authors |
URI: | https://idr.nitk.ac.in/jspui/handle/123456789/11718 |
Appears in Collections: | 1. Journal Articles |
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