| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.1061 |
| 발표분야 |
환경 |
| 제목 |
Highly Sensitive and Selective Plasmonic Detection of Heavy Metal Ions in an Aqueous Solution |
| 초록 |
Heavy metal ions are well known to be harmful to human health and the environment. Due to their toxicity, many studies have been developed methods for sensitive and selective detection of the heavy metal ions. In this study, plasmonic shift of thiolated molecules-functionalized single gold nanoparticle has been utilized in the highly sensitive and selective detection of mercuric ion by using a dark-field microspectroscopy. The method is based on the selective complexation of mercuric ions with the thiol functionality and change in the localized surface plasmon resonance-induced scattering property of the single nanoparticle. The detection method permits picomolar detection of mercuric ions and highly selective detection over environmentally relevant metal ions. Based on the findings reported herein, the method provides potentials for environmental monitoring and biosensing. |
| 저자 |
송현돈1, 최인희2, 양영인1, 홍수린1, 이수승1, 강태욱3, 이종협1
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| 소속 |
1서울대, 2Cornell Univ., 3서강대 |
| 키워드 |
plasmon; sensing
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| E-Mail |
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| 원문파일 |
초록 보기 |
