Highly Sensitive Ratiometric Fluorescent Chemosensor for Silver Ion and Silver Nanoparticles in Aqueous Solution

A pyrene derivative chemosensor (Pyr-WH) based on a dipeptide shows a highly sensitive ratiometric response to Ag(I) as well as silver nanoparticles in aqueous solution at physiological pH. Pyr-WH penetrated live HeLa cells and exhibits a ratiometric response to intracellular Ag(I). The binding mode...

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Veröffentlicht in:	Organic letters 2012-09, Vol.14 (18), p.4746-4749
Hauptverfasser:	Jang, Sujung, Thirupathi, Ponnaboina, Neupane, Lok Nath, Seong, Junho, Lee, Hyunsook, Lee, Wan In, Lee, Keun-Hyeung
Format:	Artikel
Sprache:	eng
Schlagworte:	Fluorescent Dyes - chemical synthesis Fluorescent Dyes - chemistry HeLa Cells Humans Nanoparticles - analysis Pyrenes - chemical synthesis Pyrenes - chemistry Silver - analysis Solutions - chemistry Water - chemistry
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Beschreibung
Zusammenfassung:	A pyrene derivative chemosensor (Pyr-WH) based on a dipeptide shows a highly sensitive ratiometric response to Ag(I) as well as silver nanoparticles in aqueous solution at physiological pH. Pyr-WH penetrated live HeLa cells and exhibits a ratiometric response to intracellular Ag(I). The binding mode of Pyr-WH with Ag(I) was characterized based on fluorescence changes in different pH, NMR, and ESI mass spectrometer experiments.
ISSN:	1523-7060 1523-7052
DOI:	10.1021/ol301991h