Scanning-fluorescence Reader Based on Embedded System
Abstract: To measure the
concentration of C-reactive protein (CRP) in serum, a portable,
scanning-fluorescence reader based on time-resolved fluoroimmunoassays was
developed. The scanning-fluorescence reader integrates with the AD7707
converter, which performs at a high accuracy. The photosensitive diode acts as
the photoelectric conversion device, an optical module based on optical fibers,
which is able to concentrate the excitation light from an LED into a line-shape
beam, was designed to sendand receive the optical signal. The device
subsequently addresses waveform data using a gradient, smoothing, and
binarization method. When the device measures the CRP fluorescence test strip,
the results exhibited a good linearity (0.99998) and the CVs (coefficient of
variation) were below 5%, which indicate high accuracy. At the same time the
system is low cost and small size.
Keywords: fluorescence test
strip, time-resolved fluoroimmunoassay, embedded system, scanningfluorescence
reader
Author: Zhonglong Zhao,
Xiaoping Min, Shengxiang Ge, Ningshao Xia
Journal Code: jptkomputergg150129
