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Volume 3, Issue 2
Insights in Analytical Electrochemistry
ISSN: 2470-9867
Analytical Chemistry-Formulation 2017
August 28-30, 2017
Page 57
8
th
Annual Congress on
&
14
th
International Conference and Exhibition on
August 28-30, 2017 Brussels, Belgium
Analytical and Bioanalytical Techniques
Pharmaceutical Formulations
Aptamer-based detection of arsenite for contaminated soil monitoring
Seungkyung Park, Seungmo Kim,
and
Dongho Shin
Korea University of Technology and Education, South Korea
A
rsenic contamination poses a great threat to the living organisms even in small traces. Conventional methods for analysing
heavy metal contamination in soil and water generally require laboratory equipped instruments and complex procedures,
and thus have limited applicability for onsite sensing andmonitoring of contaminated area. In the present work, we demonstrate
the novel miniaturized setup for simple sample preparation and aptamer based optical sensing of arsenite in the contaminated
soil. Colorimetric detection protocol utilizing aptamers, gold nanoparticles and NaCl has been optimized and tested on the
PDMS chip in 50 ul volume to obtain the high sensitivity. Then the performance of the device is demonstrated through the
comparative analysis of arsenic-spiked soil samples with standard laboratory method, and a good agreement is experimentally
achieved. The presented method offers the simple, rapid, portable and cost-effective means for onsite sensing of arsenic in soil.
Biography
Seungkyung Park completed PhD in Mechanical Engineering from Texas A&M University, USA. He is the Assistant Professor of Korea University of Technology and
Education and his research interests include microfluidics and micro-TAS, point of care testing.
spark@koreatech.ac.krSeungkyung Park et al., Insights in Analytical Electrochemistry, 3:2
DOI: 10.21767/2470-9867-C1-002