Meso-2,3-dimercaptosuccinic acid: from heavy metal chelation to CdS quantum dots

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2012-01-01

Author

Sevinc, Esra
Ertas, F. Sinem
Ulusoy, Gulen
Özen, Can
Acar, Havva Yagci

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DMSA (meso-2,3-dimercaptosuccinic acid) a prescription drug and a heavy-metal chelating agent, is shown to act both as a sulfur source and a capping agent in the aqueous synthesis of CdS quantum dots under mild conditions. Release of sulfur from DMSA depends on the solution pH and the reaction temperature. Combination of 70 degrees C and pH 7.5 was determined as the best reaction conditions for a well-controlled reaction. Changing the SH/Cd ratio from 2.5 to 7 provides QDs emitting from blue to orange with 6-9% quantum yield with respect to Rhodamine 2B. Viability tests performed with HeLa and MCF-7 cell lines indicate a very low cytotoxicity. Mild reaction conditions and biocompatibility makes these particles valuable candidates for bio applications.

Subject Keywords

CDTE nanocrystals, Maghemite nanoparticles, Dimercaptosuccinic acid, Assisted synthesis, Optical-properties, Aqueous synthesis, DMSA, Photoluminescence, Complexes, Clusters

URI

https://hdl.handle.net/11511/31058

Journal

JOURNAL OF MATERIALS CHEMISTRY

DOI

https://doi.org/10.1039/c2jm15741a

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

E. Sevinc, F. S. Ertas, G. Ulusoy, C. Özen, and H. Y. Acar, “Meso-2,3-dimercaptosuccinic acid: from heavy metal chelation to CdS quantum dots,” JOURNAL OF MATERIALS CHEMISTRY, pp. 5137–5144, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31058.