alexa DNA-templated Ag nanocluster formation.


Organic Chemistry: Current Research

Author(s): Petty JT, Zheng J, Hud NV, Dickson RM

Abstract Share this page

Abstract The high affinity of Ag+ for DNA bases has enabled creation of short oligonucleotide-encapsulated Ag nanoclusters without formation of large nanoparticles. Time-dependent formation of cluster sizes ranging from Ag1 to Ag4/oligonucleotide were observed with strong, characteristic electronic transitions between 400 and 600 nm. The slow nanocluster formation kinetics enables observation of specific aqueous nanocluster absorptions that evolve over a period of 12 h. Induced circular dichroism bands confirm that the nanoclusters are associated with the chiral ss-DNA template. Fluorescence, absorption, mass, and NMR spectra all indicate that multiple species are present, but that their creation is both nucleotide- and time-dependent. This article was published in J Am Chem Soc and referenced in Organic Chemistry: Current Research

Relevant Expert PPTs

Recommended Conferences

  • 3rd World Chemistry Conference
    September 11-12, 2017 Dallas, USA
  • 2nd International Conference on Biochemistry
    Sep 21-22, 2017 Macau, Hong Kong
  • Chemistry Congress 2017
    October 02-04, 2017 Vancouver, Canada

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version