Kumar R. – TechConnect Briefs

Using Neutrons to Probe the Electromechanical Response Mechanism of Ionic Block Copolymers

Dugger J.W., Chen M., Long T.E., Fu Y., Kumar R., Lokitz B.S., Browning J.F., Oak Ridge National Lab, US

One of the rapidly developing frontiers in research and engineering applications is focused on the rational design of materials that have targeted functionalities and tunable responses to external stimuli. Such materials stand to revolutionize how [...]

Polymerized Ionic Liquid Films in Strong Electric Fields: Ion Transport and Nanopatterning

Kumar R., Bocharova V., Strelcov E., Tselev A., Collins L., Kravchenko I.I., Berdzinski S., Strehmel V., Ovchinnikova O.S., Minutolo J.A., Sangoro J.R., Agapov A.L., Kisliuk A., Soko A.P., Oak Ridge National Laboratory, US

The current work represents an important step in a search for novel materials and experimental techniques that would allow for controllable and inexpensive methods of surface patterning with nanoscale resolution. The novelty of the nanopatterning [...]

Manganese Doped Zinc Oxide Nanoparticles (MnxZn1-xO): Synthesis, Magnetic Properties and Applications: Photocatalytic and Chemical Sensing

Chauhan M.S., Chauhan S., Chauhan M.S., Chauhan S., Kumar R., Himachal Pradesh University, Shimla, IN

Manganese doped zinc oxide nanoparticles (NPs), MnxZn1-xO; x = 0.01, 0.02, 0.05, 0.1 and 0.2 have been fabricated by the simple solution process. Well-defined morphologies and well-crystallinity of these nanoparticles have been verified with the [...]

Colloidal apatite nanoparticles exhibiting luminescence and magnetic susceptibility

Nickel A., Prakash K.H., Pedulla M., Kumar R., Montana Tech, US

Hydroxyapatite (HA) has been recognized for some time as a potential candidate for engineering hard-tissue replacements and drug and gene delivery systems. However, the inability to collidally disperse nano-HA (nHA), and perhaps create primary nHA [...]

Parylene Nanospheres, Nanotubes & Nanocoatings for Medical and Electronics Applications

Kumar R., Greiner A., Specialty Coating Systems, US

This paper describes the methods to obtain Parylene hollow nanospheres and nanotubes, and their potential applications along with application of Parylene coatings on nanostructured substrates for functionality and reliability enhancement. Various types of spheres and [...]

Effect of Surface Hydration and Interfusion of Suspended Silica Nanoparticles on Heat Transfer

Milanova D., Wu X., Kumar R., University of Central Florida, US

Nanofluid suspensions enhance thermal conductivity and the heat transfer. The authors have previously shown that the Critical Heat Flux (CHF) of NiChrome wire in a silica nanofluid can be increased by 200% compared to conventional [...]

Parylene Polymers for Nanotechnology Applications

Kumar R., Greiner A., Specialty Coating Systems, US

During the past several years, Parylene polymers have been considered an integral part of micro devices by many biomedical engineering researchers as devices are made of Parylene through MEMs technology. In advancing Parylenes applications further [...]

Effect of Surface Hydration and Interfusion of Suspended Silica Nanoparticles on Heat Transfer

Milanova D., Wu X., Kumar R., University of Central Florida, US

Nanofluid suspensions enhance thermal conductivity and the heat transfer. The authors have previously shown that the Critical Heat Flux (CHF) of NiChrome wire in a silica nanofluid can be increased by 200% compared to conventional [...]