Miniaturized fluorescence detection chip for queching assay of atrazine

Kyeong Sik Shin, Sang Kyung Kim, Eun Gyeong Yang, Tae Song Kim, Ji Yoon Kang, Jung Ho Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper reports a miniaturized fluorescence detection chip with photodiode for quenching assay of atrazine, which effectively reduces the size of fluorescence detection system. The PIN photodiode with fluorescence filter was bonded with PDMS (polydimethylsiloxane) microfluidic chip and was placed just below the microfluidic channel. This detection chip has simple structure consisting of a microfluidic channel and a photodiode. The miniaturized fluorescence detection developed could detect 20nM and it successfully detected the quenching of agricultural herbicide atrazine. The assay result was comparable to that of photomultiplier tube with a fluorescence microscope. This implies the miniaturized fluorescence detection system is applicable to the hand-held diagnostic device or portable environment monitoring system.

Original languageEnglish
Title of host publication2006 5th IEEE Conference on Sensors
Number of pages4
Publication statusPublished - 2006
Event2006 5th IEEE Conference on Sensors - Daegu, Korea, Republic of
Duration: 2006 Oct 222006 Oct 25

Publication series

NameProceedings of IEEE Sensors


Other2006 5th IEEE Conference on Sensors
Country/TerritoryKorea, Republic of

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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