A new chemosensor based on a self-assembled system has been devised to detect Hg2+ions efficiently. We demonstrated that the amphiphilic building blocks consisting of pyrene and boronic acid (1) aggregate in aqueous solutions and provide an outstanding sensing platform for sensitive detection. The self-assembled 1 exhibited high selectivity and sensitivity for Hg2+ion detection via fluorescence quenching, where the Hg2+ion detection ensued from a fast transmetallation of 1. The Stern-Volmer (SV) quenching constant for its fluorescence quenching by Hg2+ions was approximately 1.58 × 108 M-1. In addition, self-assembled 1 exhibited excellent sensing abilities at nano-molar concentration levels when tap water and freshwater samples were contaminated with of Hg2+ ions.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 재료 및 기기
    2.2. 실험방법
3. 실험 결과 및 토의
    3.1. 합성
    3.2. 구조적 특성
    3.3. 광물리학적 특성
    3.4. 수돗물 및 강물에서의 Hg2+이온 검출
4. 결 론
REFERENCES

• 이승엽(대구대학교 화학과) | Seung Yeob Lee (Department of Chemistry, Daegu University)
• 이성호(대구대학교 화학과) | Seoung Ho Lee (Department of Chemistry, Daegu University) Corresponding author