The Joint School of Nanoscience and Nanoengineering

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1 The Joint School of Nanoscience and Nanoengineering James G. Ryan, Ph.D. Founding Dean Joint School of Nanoscience and Nanoengineering North Carolina A&T State University and the University of North Carolina at Greensboro Greensboro, NC

2 Outline JSNN Nanoscience & Nanoengineering Research at JSNN Summary

JSNN Mission and Approach JSNN is a joint academic unit of NC A&T and UNCG - First nanoscience classes held in 2010 -

facility completed December 2011 JSNN is devoted to graduate nanotechnology education and research (4 degree programs)

D students for Spring 2014 - Research activities map into the industries of North Carolina - Focus on discovery,

3 JSNN Mission and Approach JSNN is a joint academic unit of NC A&T and UNCG - First nanoscience classes held in First nanoengineering classes held in $56.3 M 105K sq. ft. facility completed December 2011 JSNN is devoted to graduate nanotechnology education and research (4 degree programs) and engagement with industry - 80 M.S. and Ph.D students for Spring Research activities map into the industries of North Carolina - Focus on discovery, innovation and commercialization OAI Lithography System Collaboration with industry using shared infrastructure. - Nanomanufacturing Innovation Consortium - Nanobio Launchpad - Gateway Materials Testing Center - Sponsored Research Lam Research RIE Systems

4 JSNN Students

Cell-based Toxicity Assay-on-Chip for the Next-Generation CMOS Technology (S.

the factors that influence their associated potential hazards Schematic illustrates possible

caveolae-mediated endocytosis (Singh et al.

5 Cell-based Toxicity Assay-on-Chip for the Next-Generation CMOS Technology (S. Aravamudhan) Funded by SRC ( ) Cell toxicity analysis of Engineered Nanomaterials (ENs) and the factors that influence their associated potential hazards Schematic illustrates possible mechanisms of uptake including passive diffusion, receptor-mediated endocytosis and clarthrinor caveolae-mediated endocytosis (Singh et al. 2009) (a) Illustration of EN nano-fet architectures planar and vertical integration (Aravamudhan et al., 2007 and Lu et al., 2006), (b) Electron micrograph of high-density vertical metallic nanowires,

6 Helium Ion Microscopy C80 Metallofullerene in Foam Cells (Courtesy of C. Kepley) He Ion Etched Patterns (Courtesy of J.J. Yang) Gd inside cells

Inflammatory disease-asthma Glioblastoma

7 Nanopharmacology (C. Kepley) Atherosclerosis Cancer Atherosclerotic-plaque targeting contrast agents (ATCA) can detect plaque in vivo. Inflammatory disease-asthma Glioblastoma targeting theranostics (GTTN) shrink brain tumors. Fullerenes improve asthma symptoms.

8 Carbon Nanotubes in Composite Materials (A. Kelkar) F-22A raptor DEVELOPMENT OF MULTIFUNCTIONAL POLYMER COMPOSITES USING CNTS SPONSOR: AFRL/CLARKSON AEROSPACE

9 Nanofiber Applications in Structures (L. Zhang, A. Kelkar) SPONSOR: NAVAIR/TRIANGLE POLYMER, PI: A. Kelkar Fabric of micro-sized glass fibers Epoxy resin with electrospun glass nanofibers (EGNFs) Hybrid multi-scale SiO 2 reinforced polymer composites HVARTM Process A. Kelkar Ordinary NCF New NCF

arrange themselves into useful structures 5

10 Self-Assemby (A. Hung) Nanoscale particles can be coaxed to arrange themselves into useful structures 5 nm Vertically aligned CdSe nanorods for solar cells A.M. Hung, T. Oh, J.N. Cha, Nanoscale 2012, 4, 116 DNA and nanoparticle assembly for sub- 20nm lithography A.M. Hung, et al., Nat. Nanotech. 2010, 5, 121. Rothemund, P. W. K., Nature 2006, 440, 297. Patterned nanoparticle superlattices H. Noh, A.M. Hung, J.N. Cha, Small 2011, 7, 3021.

High-Density Peripheral Nerve Resonant Stimulation Device (S. Aravamudhan and J.

conductivity (Regenerative Microchannelbased Electrode Interface - ReME) Schematic of the

simultaneously activates multiple stimulation sites in the implantable electrode (E) Image of

11 High-Density Peripheral Nerve Resonant Stimulation Device (S. Aravamudhan and J. Starobin) 3D high-density peripheral nerve-electrode interface in order to re-establish nerve conductivity (Regenerative Microchannelbased Electrode Interface - ReME) Schematic of the external control unit (C) wirelessly connected with an implantable receiver (R) which simultaneously activates multiple stimulation sites in the implantable electrode (E) Image of stained neuronal cells on electrodes 3D micro-channel array embedded with electrodes for stimulation of nerve fibers

12 V p-p of the Detector Output (V) Compound Semiconductor Technologies (S. Iyer) Transparent Conducting ZnO on Plastic Substrates Amorphous Transparent Oxide based TFT Device Structure & Characteristics compatible with plastic substrates Transparent circuits for wearable computers & heads up displays Near IR 1.5µm Mid IR 2-6 µm Very Long IR µm GaAs-based dilute Nitrides LED structure I-V trace x Input Current (ma) Laser diode schematic 1 m A 1 V Laser Output vs Input Current GaSb and InSb based dilute Nitrides Trace gas detection (MIR) Be doped InSbN Contacts InSb n+ substrate Military- Night Vision (MIR) Highest mobility on Te-InSb (one of the highest reported in literature) InGaSbN-InAs based superlattice Deep space Target Recognition (VLWIR)

13 Computational Nanotechnology Examples (R. Mohan) Composite Material Process Modeling Polymer Nano/Hybrid Composites Nanoscale Analysis Nanoscale Deformation Behavior Tobermorite 14Å Jenni te Microscale Analysis Nano to Continuum Modeling of Cementitious Materials Peptide Aptamer Molecular Interactions

15 Summary Nanotechnology is revolutionizing IT, electronics, medicine, defense, entertainment, transportation, communication and many other industries. Nanotechnology is critical to North Carolina s economy JSNN s leading-edge infrastructure enables discovery, innovation and collaboration. Thank you!