<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgh3qrgmjgc" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />CdS nanodots with good water solubility and low cell cytotoxicity were synthesized using BSA as template without external sulfur.</p> </abstract>