Adenosine monophosphate-capped gold(i) nanoclusters: synthesis and lanthanide ion-induced enhancement of their luminescence. Issue 21 (11th February 2016)

• Record Type: Journal Article
• Authors: Vanegas, Julie P.; Zaballos-García, Elena; González-Béjar, María; Londoño-Larrea, Pablo; Pérez-Prieto, Julia
• Is Part Of: RSC advances. Volume 6:Issue 21(2016)
• Page Start: 17678
• Page End: 17682
• Publication Date: 2016-02-11
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra01891b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Reduction of Au 3+ in the presence of just AMP and HEPES, combined with light exposure, gives rise to luminescent, water-soluble Au + nanoclusters. Their photoluminescence is considerably enhanced by adding Y 3+ or Yb 3+, which leads to Au + /Y 3+ and Au + /Yb 3+ NCs, respectively. Abstract : Reduction of Au 3+ in the presence of just adenosine 5′-monophosphate (AMP) and a zwitterionic organic chemical buffering agent, specifically 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), combined with light exposure, gives rise to luminescent, water-soluble Au + nanoclusters (Au + NCs). The photoluminescence of these NCs is considerably enhanced by adding Y 3+ or the chemically similar Yb 3+ lanthanide that leads to Au + /Y 3+ and Au + /Yb 3+ NCs, respectively. These NCs are characterised by absorption (steady-state), photoluminescence (steady-state and time-resolved), and X-ray photoelectron spectroscopy.