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DNA-Based Nanotechnology: Highly Luminescent CdSe – DNA Nanoscale – Engineered Complexes

V. Kislov, M. Artemyev, G. Khomutov
Russian Academy of Sciences, RU

Keywords:
DNA, CdSe, nanorods, photoluminescence

Abstract:
We present some new results within the concept of using DNA molecules as building blocks and nanotemplates for controllable fabrication of various bioinorganic nanostructures due to their unique physical-chemical properties and recognition capabilities and the synthetic availability of desired nucleotide sequences and length. Development of new effective nanofabrication methods with reasonable costs is currently of principal importance for practical advancements in nanoscience and nanotechnology. Within activities of INTC of Russia (INTC – Interdisciplinary Nanotechnology Consortium) we have developed the complete technological cycle of design, manufacturing, characterization and application of molecular nanoclusters (MNC) for nanoelectronics and some other areas. We have also synthesized novel DNA complexes with positively charged, highly luminescent CdSe nanorods that can self-organize into filamentary, netlike, or spheroidal nanostructures. DNA-CdSe-nanorods filaments possess strongly linearly polarized photoluminescence due to the unidirectional orientation of nanorods along the filaments.

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