6533b856fe1ef96bd12b289b
RESEARCH PRODUCT
Water-Soluble Naked Gold Nanoclusters Are Not Luminescent.
Elena Zaballos-garcíaJulia Pérez-prietoJulie P. VanegasPablo Londoño-larreaDaniel Cuaran-acostasubject
PhotoluminescenceChemistryOrganic ChemistryNanotechnology02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciencesCatalysis0104 chemical sciencesNanoclustersWater solubleNano-0210 nano-technologyLuminescencedescription
We report here the synthesis of water-dispersible naked gold nanoclusters (AuNCnaked) by a simple reduction of HAuCl4 with NaOH at room temperature and show that they are non-luminescent. They were then easily passivated with different thiols and adenosine monophosphate to lead to luminescent NCs. This is an important finding as the photoluminescence of the passivated NCs can now be clearly attributed to the ligand-AuNC surface interaction. These results are also highly relevant from the point of view of the preparation of luminescent NCs from the same NC batch. This strategy can be valuable for the preparation of a broad range of nano(bio)composites.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-05-15 | Chemistry (Weinheim an der Bergstrasse, Germany) |