A5021612634- Conducting polymers and applications
- Molecular Junctions and Nanostructures
- Particle accelerators and beam dynamics
- Neuroscience and Neural Engineering
- Superconducting Materials and Applications
- Semiconductor materials and devices
- Bacteriophages and microbial interactions
- Photonic Crystals and Applications
- Force Microscopy Techniques and Applications
- Carbon Nanotubes in Composites
- Particle Accelerators and Free-Electron Lasers
- RNA Interference and Gene Delivery
- Advanced biosensing and bioanalysis techniques
- Microfluidic and Bio-sensing Technologies
- Advanced Materials and Mechanics
- Epoxy Resin Curing Processes
- Graphene research and applications
- Organic Electronics and Photovoltaics
- Microfluidic and Capillary Electrophoresis Applications
- Magnetic confinement fusion research
- Polymer Surface Interaction Studies
- Electrohydrodynamics and Fluid Dynamics
- Nanofabrication and Lithography Techniques
- Synthesis and properties of polymers
- Composite Material Mechanics
University of California, San Diego
2022-2025
California State University, Long Beach
2020
Oak Ridge National Laboratory
1985-1987
Checkerboard lattices-where the resulting structure is open, porous, and highly symmetric-are difficult to create by self-assembly. Synthetic systems that adopt such structures typically rely on shape complementarity site-specific chemical interactions are only available biomolecular (e.g., protein, DNA). Here we show assembly of checkerboard lattices from colloidal nanocrystals harness effects multiple, coupled physical forces at disparate length scales (interfacial, interparticle,...
Abstract Durable and conductive interfaces that enable chronic high‐resolution recording of neural activity are essential for understanding treating neurodegenerative disorders. These implants require long‐term stability small contact areas. Consequently, they often coated with a blend polymers crosslinked to enhance durability despite the potentially deleterious effect crosslinking on mechanical electrical properties. Here grafting poly(3,4 ethylenedioxythiophene) scaffold,...
It has been indicated that the path forward for widespread usage of ferroelectric (FE) materials may be considerably facilitated through reduction programming voltages to on-chip logic compatible values < 1 V. Obstacles involve issues related scaling FEs lower thickness as well presence an interfacial layer (IL) between high permittivity FE and substrate -- resulting in wasted voltage across IL. Here, we show how operating along with a higher tunneling electroresistance (TER) could achieved...
It has been indicated that the path forward for widespread usage of ferroelectric (FE) materials may be considerably facilitated through reduction programming voltages to on-chip logic-compatible values <1 V. Obstacles involve issues related scaling FEs lower thickness as well presence an interfacial layer (IL) between high-permittivity FE and substrate- resulting in wasted voltage across IL. Here, we show how operating along with a higher tunneling electroresistance (TER) could achieved IL...
We report PEDOT:PSS brushes grafted from gold using surface-initiated atom-transfer radical polymerization (SI-ATRP) which demonstrate significantly enhanced mechanical stability against sonication and electrochemical cycling compared to spin-coated analogues as well lower impedances than bare at frequencies 0.1 10
Atomic force microscopy (AFM), in particular spectroscopy, is a powerful tool for understanding the supramolecular structures associated with polymers grafted to surfaces, especially regimes of low polymer density where different morphological are expected. In this study, we utilize volume mapping characterize nanoscale surfaces Ag nanocubes (AgNCs) monolayer polyethylene glycol (PEG) chains. Spatially resolved force-distance curves taken single AgNC were used map surface properties, such as...
Abstract In this study, graphite nanoplatelets (GNPs) were dispersed in a copolymer matrix consisting of bisphenol‐A based benzoxazine (BZ) and bi‐functional cycloaliphatic epoxy (CER), using two solvent‐free techniques: ultrasonication three‐roll mill (3RM). The effects GNP addition on the tensile performance, storage modulus, glass‐transition temperature ( T g ) , electrical conductivity evaluated. A maximum increase nearly 46% 20% modulus strength, respectively, was found at 1.8 wt%...
A new plasma processing-based methodology for enhancing the streaming potential (Vs) that may be obtained in electrokinetic flows a given pressure gradient over silicon surface-based microchannel is indicated. The dependence of Vs on both surface zeta and electrolyte slip length was carefully determined through series experiments involving variation CF4- Ar-based parameters, incorporating pressure, exposure time, power. It analytical estimates that, while always increased, diminished under...
The international Large Coil Task (LCT) is a major activity in the development of superconducting toroidal field (TF) coils for tokamak fusion reactors. technical objective this program to design, build, and test six large TF coils, thereby producing information data that can be used directly by planners designers After an intensive competetive bidding cycle, contracts were awarded 1977 three U.S. industrial firms design manufacture coils. Subsequently Japan, EURATOM, Switzerland agreed...
ABSTRACT We used DNA origami to create NanoNERF, the world’s smallest NERF blaster replica (Figure 1). based our design on model Maverick Rev-6 , and scaled dimensions down three million times. NanoNERF is planar measures ∼100 nm in length, with a length-to-width ratio closely resembling original toy. Here, we describe design, prototyping, validation pipeline NanoNERF. also discuss potential applications motivate creation of future nanoscale blasters firing functionality.
Manufacturing of the Westinghouse forced flow Nb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> Sn coil for Oak Ridge National Laboratory Large Coil Program (LCP) is complete. The installed in Test Facility (LCTF) at and being tested. design concept briefly presented to better understand complexities manufacturing processes. This paper describes step-by-step procedures LCP manufacture. facilities required training shop personnel are...