**3. Conclusion**

DNA acts as a promising material for biomolecular nanotechnology due to its unique recognition capabilities, physicochemical stability, mechanical rigidity and high precision processibility. Significant progress has been made in this field, but it is still in the early stages. The catalytic, electrical, magnetic, and electrochemical properties of such structures can be systematically investigated and will represent the new frontiers in this field. Various DNA-based nanostructures, including DNA itself, DNA functionalized with metal and semiconductor nanoparticles, DNAdirected nanowires, and DNA-functionalized carbon nanotubes are used in wider application for biological and medical applications. Due to the present applicability of DNA structures, these properties should be properly studied to provide an access to the new and useful electronic and photonic materials. The development of DNA nanowires has recently focussed its attention in three aspects: (1) customising the sequence of nucleic acids for better electrical conductivity with reduced mismatch pair complexes, (2) stacking targeted double-helical backbone for stable and rigid nanowires, and (3) interconnection of discrete DNA origami structures [47]. Though researches have been carried out for the achievement of these targets, the cost of experimental synthesis need to be address in near future.

**7**

**Author details**

Ruby Srivastava

provided the original work is properly cited.

*Introductory Chapter: DNA as Nanowires DOI: http://dx.doi.org/10.5772/intechopen.85172*

RS acknowledges the financial assistance by the DST WOS-A (SR/WOS-A/ CS-69/2018). RS is also thankful to her mentor Dr. Shrish Tiwari, Bioinformatics Department, CSIR—Centre for Cellular and Molecular Biology, Hyderabad for the

**Acknowledgements**

support.

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

CSIR—Centre for Cellular and Molecular Biology, Hyderabad, India

\*Address all correspondence to: amitruby1@gmail.com
