Biosystem with 16 highly-selective optical-channels for biological fluids analysis in the visible spectrum

Author

Minas, G. ; Ribeiro, J.C. ; Lanceros-Mendez, S. ; Vaz, F. ; Wolffenbuttel, R.F. ; Correia, J.H.

Volume

2

fYear

2003

Firstpage

1251

Abstract

This paper reports a biosystem (biological system) for analyzing biochemical substances in biological fluids. Rather than one channel, it comprises 16 highly-selective optical-channels that enable the measurement of the concentration of 16 different biochemical substances. An array of 16-optical filters with high reflectivity and low absorption loss has been designed using dielectric films. Each filter is sensitive in a single wavelength with a FWHM (Full-Width-Half-Maximum) <5 nm and peak intensity >52%. A commercially available band-pass optical filter with a band-pass wavelength in 450-600 nm is used to enable the use of a white light source for biosystem illumination. Preliminary tests with a single-channel are successfully demonstrated.

Keywords

band-pass filters; biological fluid dynamics; dielectric thin films; optical filters; reflectivity; visible spectra; 450 to 600 nm; absorption loss; band-pass optical filter; biochemical substances; biological fluids; biosystem illumination; dielectric films; full-width-half-maximum; optical filters; optical-channels; reflectivity; visible spectra; Band pass filters; Biochemical analysis; Biological systems; Biomedical optical imaging; Dielectric measurements; Filter bank; Optical films; Optical filters; Optical sensors; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

TRANSDUCERS, Solid-State Sensors, Actuators and Microsystems, 12th International Conference on, 2003

Conference_Location

Boston, MA, USA

Print_ISBN

0-7803-7731-1

Type

conf

DOI

10.1109/SENSOR.2003.1216999

Filename

1216999