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Proceedings Paper

Novel nano-sensor for biomedical and industrial applications
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Paper Abstract

A novel photonic band-gap (PBG) based nano-sensor is proposed for cell, biomolecule gas, chemical agents, or various industrial gas detections. The sensor consists of waveguide, made from periodically structured dielectrics forming PBG. This sensor is optimized with a fixed wavelength of light and fixed receptor for detecting specific biomolecule or cell. The absorption of cell or biomolecule causes the changes in refractive index, which thereby changes the optical intensity. The concentration of cell or biomolecule agent can be known from the changes in optical output. The proposed sensor can be very high sensitive and can able to detect the fixed cell in very smaller amount or biomolecule gas in several parts per billion. We will present the detailed simulation for various applications for example in clinical diagnostic system to measure the specific cell or DNA, or in spectroscopy for measuring various biomolecule gases in the space. In addition, this proposed sensor is able to detect the contamination of the environment (e.g. viral germs), food (fungus) and agricultural products.

Paper Details

Date Published: 18 November 2005
PDF: 9 pages
Proc. SPIE 6008, Nanosensing: Materials and Devices II, 60080T (18 November 2005); doi: 10.1117/12.633573
Show Author Affiliations
Rabi Sengupta, Banpil Photonics, Inc. (United States)
Achyut K. Dutta, Banpil Photonics, Inc. (United States)

Published in SPIE Proceedings Vol. 6008:
Nanosensing: Materials and Devices II
M. Saif Islam; Achyut K. Dutta, Editor(s)

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