Synthesis of chiral silver clusters on a DNA template

Tatiana Molotsky, Tali Tamarin, Assaf Ben Moshe, Gil Markovich*, Alexander B. Kotlyar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Chiroptical properties were induced in small (<2 nm) silver nanoparticles (NPs) grown on 1000 base pair poly(dA)-poly(dT) around their surface plasmon resonance wavelength. Cutting of the DNA template with DNase and separating the DNA coated NPs did not eliminate the chiroptical response. The induction of chirality in the DNA-Ag NPs with metal cores of more than 100 atoms is based on weak multibase-Ag interactions in contrast to the strong monomeric thiol-metal interaction that was previously reported to induce chiroptical properties silver or gold clusters of less than 100 atoms.

Original languageEnglish
Pages (from-to)15951-15954
Number of pages4
JournalJournal of Physical Chemistry C
Volume114
Issue number38
DOIs
StatePublished - 30 Sep 2010

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