University of California Riverside

Real-Time Density Functional Tight Binding: A New Computational Tool for Probing Electronic Properties of Plasmonic Systems

Ilawe N.V., Wong B.M., University of California Riverside, US

Light-harvesting systems and plasmonic materials continue to garner significant attention due to their importance in both energy conversion and sensitive detection technologies. However, several challenges exist in improving their performance: these electronic multifunctional systems are [...]

Chemiresistive hydrogen (H2) gas sensor based on viral-templated Pd nanowires

Moon C.H., Yan Y., Zhang M., Myung N.V., Haberer E.D., University of California Riverside, US

Palladium (Pd) has been widely used for H2 sensing applications because it readily forms a solid solution with hydrogen, modifying electrical resistance. Because the resistance change is diffusion-limited, Pd nanostructured materials with large surface area [...]

Nanocrystalline gold-based hydrogen sulfide (H2S) sensor from M13 bacteriophage template

Moon C.H., Zhang M., Yan Y., Myung N.V., Haberer E.D., University of California Riverside, US

Bio-templated assembly of inorganic materials is a promising technique for facile bottom-up assembly of complex and unique nanostructures at ambient conditions. Here, viral-templated nanocrystalline gold nanowires were synthesized for use in highly sensitive H2S sensors [...]

Osteogenic induction on single-walled carbon nanotube scaffolds

Zanello L.P., Sharma P., Corzano R., Hauschka P., University of California Riverside, US

Production of bone materials is the result of secretory activities by osteoblasts, the bone-forming cells. In the fractured and wounded bone, successful repair and/or regeneration depends on the capacity of osteoblast precursors to proliferate and [...]

The Effect of Source/Drain Extension Asymmetry on the Leakage Current of Ohmicly-contacted Carbon Nanotube FETs

Alam K., Lake R., University of California Riverside, US

The geometry dependence of the leakage current by modeling the effect of source/drain extension asymmetry on the leakage current of CNTFETs with 20 nm wrap-around gates is investigated. The symmetric geometry has the highest leakage [...]

Electronic Structure and Transport in Biological Inorganic Hybrid Materials

Pandey R.R., Bruque N., Lake R.K., University of California Riverside, US

Chemical and biological hybrid organic-inorganic nanotechnology holds the promise to provide new capabilities for manufacturing functional nanosystems for a wide range of applications in engineering and biotechnology. We report fundamental studies used to model bio/inorganic [...]

Directed Self-Assembly of Virus-Based Hybrid Nanostructures

Tsai C., Ozkan C.S., University of California Riverside, US

Application of biomolecules in self-assembly has an advantage to produce functional building-block for bottom-up approach in nanofabrication. Well known unenveloped viruses such as poliovirus (PV) and tobacco mosaic virus (TMV) were used in our self-assembled [...]

Hybrid Nanomaterials for Active Electronics and Bio-Nanotechnology

Wang X., Pandey R.R., Lake R., Ozkan C.S., University of California Riverside, US

We describe self assembly processing of functional carbon nanotubes using single strand deoxyribonucleic acid (DNA) and peptide nucleic acid (PNA) fragments. Previous research has shown the self assembly of carbon nanotubes to quantum dots via [...]

Guided Neurite Growth on Patterned Carbon Nanotubes

Zhang X., Prasad S., Niyogi S., Ozkan C.S., Ozkan M., Ozkan C.S., Ozkan M., University of California Riverside, US

Nanomaterials substrates are suitable for functioning as cell scaffolds. Promotion of axonal growth and support for long distance regeneration are the two requirements in the various experimental strategies for spinal cord repair. Organic systems’ performance [...]

Modeling of Brillouin Spectrum of a Quantum Dot Crystal

Lazarenkova O.L., Balandin A.A., University of California Riverside, US

Model for simulation of the Brillouin spectra of three-dimensional regimented array of GeSi quantum dots in Si is proposed. We consider the low-energy part of the Raman spectrum that is determined by the transformed modes [...]