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Accessible Unlicensed Requires Authentication Published by Oldenbourg Wissenschaftsverlag February 7, 2014

Fluorescent Nanocrystals for Biomedical Applications

Horst Weller, Johannes Ostermann, Christian Schmidtke and Hauke Kloust


We report on fluorescence quenching experiments of CdSe quantum dots, which were encapsulated for biocompatibility using different strategies. Since their fluorescence is very sensitive against water and other quenching molecules reaching their surface, quenching experiments allow conclusions on particle shielding towards the surrounding medium. It turns out that best shielded particles with comparable chemical composition of their ligand shell have also outstanding properties in respect of undesired unspecific cellular uptake.

Received: 2013-11-4
Accepted: 2013-12-20
Published Online: 2014-2-7
Published in Print: 2014-3-28

©2014 Walter de Gruyter Berlin/Boston