Start
Jul 09, 2014 - 17:00
End
Jul 09, 2014 - 17:00
Venue
Room 118 Creativity Hall Chemical Engineering
Event Type
Speaker
Dr. Ankur Verma Postdoc IIT Kanpur
Title
Nanofabrication: Top-Down meets Bottom-up
Abstract: Top down nano-fabrication methods are limited by the fact that it is not possible to incorporate complex location specific details on surface at molecular length scales. In this talk I will address this limitation and show how self-organization in thin films and macromolecular self-assembly based techniques such as DNA origami may solve this problem. The fabrication of patterned and functionalized surfaces is an area of increasing interest because of its potential applications in microfluidics micro-electromechanical systems (MEMS) polymer electronics including organic light emitting diodes (OLEDs) multifunctional coatings (insulation optical protective adhesive etc.) micro- and nano- optics systems memory devices membranes and bioengineering. DNA nanotechnology provides unique solution by building structures of technological and medical importance using sequence-specific interaction between two or more complementary DNA strands. Using DNA nanotechnologies one can make two- and three-dimensional crystal lattices nanotubes arbitrary designed shapes functional devices such as molecular machines and DNA computers. DNA based nanostructures are precise up to few nanometers and are highly scalable but limited by the maximum size that it can grow which in most cases is less than few micrometers. In my talk I will show integration of DNA nanostructures on lithographically patterned surfaces to build programmable self-assembled hybrid devices. About speaker: Ankur Verma completed his 2 year postdoctoral fellowship in the department of Chemical and Biomolecular Engineering and Institute of Nanobiotechnology at Johns Hopkins University Baltimore USA. He did his PhD in 2011 from IIT Kanpur working with Prof. Ashutosh Sharma in the Department of Chemical Engineering. His area of interest include DNA Nanotechnology interfacial science nanofabrication thin-film instabilities and patterning. He has received Malhotra Weikfield Foundation Nanoscience Fellowship Shah-Schulman Award for the best PhD Thesis in the area of Colloid and Interface Sciences (2011) and DST-INSA Inspire Faculty Fellowship in Engineering and Technology (2011). He has published 9 articles in peer reviewed journals and has 2 U.S. patents.