Chirality of silver nanoparticles synthesized on DNA.
Silver nanocrystals grown on a poly(dG)-poly(dC) double stranded DNA scaffold displayed circular dichroism at their surface plasmon excitation band. This chiral plasmon signature was not observed in a control experiment where silver nanocrystals of similar size were produced without the DNA template and adsorbed to the DNA. It is concluded that the DNA templated Ag nanocrystals had a preferred structural handedness.
Shemer
Gabriel
G
School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences and Department of Biochemistry, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel.
Krichevski
Olga
O
Markovich
Gil
G
Molotsky
Tatiana
T
Lubitz
Irit
I
Kotlyar
Alexander B
AB
D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D053768:Metal Nanoparticles; D046529:Microscopy, Electron, Transmission; D012834:Silver / Q000737:chemistry*; D013237:Stereoisomerism
D012834:Silver; D004247:DNA