Biotemplated Synthesis of CdSe Nanowires

The use of bio-molecular building blocks opens a new direction in the realm of nanotechnology and such a technology is essential to manipulate nanocrystals in its shape and size. Nucleic acids are of special interest for its ability of selforganization and sensitivity to biological process. In the present work, we present an approach of organizing bioinorganic nanostructures. CdSe nanowire has been synthesized using single strand oligonucleotides as a biotemplate by an electrodeposition technique. A comparative study conceded between CdSe nanoparticle and biotemplated CdSe-DNA nanowire. The CdSe-DNA nanowire reveals a cubic phase as revealed from X-Ray diffraction measurement. CdSe nanowires are fabricated in a filamentary, wire like morphology in DNA strand as established from Atomic Force Microscopic (AFM) measurements.