Advantages Of Fiber Optic Biosensors

1158 Words5 Pages
PH4604 Topics in Applied Physics:
Bioimaging and Sensing
Chin Zong Yang
U1340544E

Fiber Optic Biosensors

Abstract:

This paper studies the clinical use of fiber optic biosensors, its advantages over traditional means of detection and limitations of this new technology. An in-depth study of its history, how the technology works, and comparisons with older methods of bio-sensing will also be made.

Introduction:

A biosensor is a device or method that allows a certain specific biological material to be detected. Common forms of detection are Fluorescence techniques, Raman Scattering, Plasmon Resonance, Near-infrared Spectroscopy and diffuse reflectance spectroscopy. These detection methods each have distinct advantages and disadvantages, and can adapt to a variety of different applications for different situations. However, traditional methods of biosensing usually requires the molecule to be labeled with an analyte, which must be chemically bound the molecule that is to be detected, making such methods slow, cumbersome and sometimes even toxic to the body.
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Besides being used in biosensing, fiber optics has been used in various telecommunication and high-speed networks around the world, replacing or supplementing traditional copper wires. This is due to the rapid advancement of relatively new technologies from fiber optics: the laser and the low cost of fiber optics production. Fiber optic biosensors also have excellent light permeability, easy and cheap to manufacture, able to illuminate the target with light and also able to transmit the light that is emitted by the target after

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