Journal of Nanomedicine & Nanotechnology

Interfacial effects in thin film nanostructures for electronic, photonic and biomedical applications

2^nd International Conference on Nanotek and Expo

December 3-5, 2012 DoubleTree by Hilton Philadelphia Center City, USA

S. Sundar Manoharan

Scientific Tracks Abstracts: J Nanomed Nanotechol

Abstract:

Three major areas namely spintronics, organic display and biotechnology have shown the importance of Nanotechnology. This talk is aimed to show the influence of interfaces in nanostructures showing ability to control vital photonic, electronic and biological responses. Case I: The reality of cardiovascular stents deals with a number of issues that have to be looked at separately. Stents require relatively high physical strength and should at the same time be friendly to the vascular environment. Bare-metal stents (Co-Cr) were obstructed because of tissue in-growth, resulting in second procedure. Drug-eluting stents inhibit this process, but uncovered stents may cause thrombosis after the discontinuation of anti-platelet therapy, necessitating novel polymer coatings with drug release procedures. However due to the risk of in stent thrombosis, novel nano-coatings hold potential for future applications. This talk will highlight the use of polymeric nanocoatings in arresting In-stent Thrombosis. Case II: Generally, the emission colors of layered OLEDs can be obtained by selecting fluorescent materials with different energy levels gap or doping the organic films with highly efficient fluorescent dopants. Sometimes, for a certain combination of the organic functional materials in layered OLEDs, the emission spectrum is different from either of the fluorescent spectra of the constituent materials, and can be assigned to the emission from exciplex formed at the interface between the two constituent materials. In such cases the thickness of these nano sized layers play a crucial role. Case III: The Tunnel magnetoresistance (TMR) is a magneto-resistive effect that occurs in magnetic tunnel junctions (MTJs). This is a component consisting of two ferromagnets separated by a thin insulator. If the insulating layer is thin enough (typically a few nanometers) , electrons can tunnel from one ferromagnet into the other. Since this process is forbidden in classical physics, the tunnel magneto-resistance is a strictly quantum mechanical phenomenon involving interfacial effects. Some examples of such devices will be shown