18 November 2005 Novel nano-sensor for biomedical and industrial applications
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Proceedings Volume 6008, Nanosensing: Materials and Devices II; 60080T (2005); doi: 10.1117/12.633573
Event: Optics East 2005, 2005, Boston, MA, United States
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.
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Rabi Sengupta, Achyut K. Dutta, "Novel nano-sensor for biomedical and industrial applications", Proc. SPIE 6008, Nanosensing: Materials and Devices II, 60080T (18 November 2005); doi: 10.1117/12.633573; https://doi.org/10.1117/12.633573
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KEYWORDS
Sensors

Gases

Receptors

Refractive index

Waveguides

Biomedical optics

Industrial chemicals

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