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Lookup NU author(s): Dr Liqin Dong, Tom Hollis, Professor Bernard Connolly, Professor Nick Wright, Dr Ben Horrocks, Professor Andrew HoultonORCiD
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The use of DNA strands to grow or organize the binary semiconductor CdS, is analyzed. Quantum-confined CdS was prepared, where the reaction was controlled through careful optimization of the reaction conditions and the state of the DNA. Reactions of cadmium and sulfide ions on surface-bound DNA employed two different surface, such as mica and alkyl monolayers on single-crystal Si(111). The mica surfaces allowed the DNA molecules to be anchored through interactions between the metal ions, the surface oxygen functionalities, and the phosphate groups. The images of CdS nanoparticles templated at DNA on mica were obtained by using AFM. Reactions at DNA were aligned through combining onto alkylated Si(111) produced material. Results show that the surface contains randomly coiled strands, indicating that the DNA is mobile during the reaction sequence.
Author(s): Dong L, Hollis T, Connolly BA, Wright NG, Horrocks BR, Houlton A
Publication type: Article
Publication status: Published
Journal: Advanced Materials
Year: 2007
Volume: 19
Issue: 13
Pages: 1748-1751
ISSN (print): 0935-9648
ISSN (electronic): 1521-4095
Publisher: Wiley - VCH Verlag GmbH & Co. KGaA
URL: http://dx.doi.org/10.1002/adma.200602543
DOI: 10.1002/adma.200602543
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