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Low-Cost Self-Assembly of Supraparticles

Prof. Yadong Yin and his colleagues from the University of California, Riverside have developed a new method for the self-assembly of supraparticles at all scales. The method uses an emulsion-based template-assisted self-assembly of superstructures unrestricted to the chemical composition of the building blocks.  Emulsion droplets containing materials that will form the supraparticles are distributed by using uniform holes patterned on a template film as a collective and size-controllable platform of superstructures. This emulsion method allows for the superstructuring of various shapes and types of building blocks at all scales without any additional surfactants to the system. Additionally, external stimuli such as magnetic or electric fields may be used to tune the assembly of supraparticles. Fig 1. A scanning electron microscope image of the supraparticles of silica nanoparticles formed in the micro-hole template. The inset highlights one supraparticle.  

Electromagnetic Interference Shielding Composites

Prof. Alexander Balandin, Dr. Fariborz Kargar and colleagues from the University of California, Riverside have developed novel composites with fillers comprised of graphene and/or quasi-1D van der Waals materials that provide efficient EMI shielding. These unique composites can block EM radiation and are also electrically insulating. These composites may be added to adhesives used in the packaging of electronic components so that the resulting electronic devices will have EMI shielding properties. This technology ensures that EMI shielding is achieved so that a variety of electronics operate reliably and without detrimental effects on human health. Fig 1: Coefficients of absorption for composites made with the UCR graphene-based composition.  

Carbon Nanotube based Variable Frequency Patch-Antenna

Researchers at UCI have developed a patch antenna constructed from carbon nanotubes, whose transmission frequency can be tuned entirely electronically. Additionally, the antenna can be made operable in the microwave to visible frequency regime by simply varying the device dimensions and composition.

A Point Of Care Method To Detect Covid19 Infected And Immune Patients For Pennies

The emergence of a novel coronavirus disease (COVID-19) in late 2019 has caused a worldwide health and economic crisis. Determining which members of the population are infected is key to re-opening of schools, universities, and non-essential businesses. To address this, researchers at UCI and UIC have developed an inexpensive point of care test using RNA aptamer technology for detecting COVID19 infected and immune patients that can be taken at home like a pregnancy test.

Laser Additive Manufacturing Method For Producing Porous Layers.

A method of metal additive manufacturing which allows for production of porous products with pore size potentially down to the nanometer-scale.

Enhanced Block Copolymer Self-Assembly

Brief description not available

Nanoparticles-Enabled Casting of Bulk Ultrafine Grained/Nanocrystalline Metals

UCLA researchers in the Department of Mechanical and Aerospace engineering have fabricated bulk, thermally stable ultrafine grained/nanocrystalline metals using conventional casting techniques.

Colorimetric Detoxifying Sensors for Fumigants and Aerosol Toxicants

Researchers at the University of California, Davis have developed a colorimetric sensor than can detect and detoxify fumigants simultaneously. 

Compact Ion Gun for Ion Trap Surface Treatment in Quantum Information Processing Architectures

Electromagnetic noise from surfaces is one of the limiting factors for the performance of solid state and trapped ion quantum information processing architectures. This noise introduces gate errors and reduces the coherence time of the systems. Accordingly, there is great commercial interest in reducing the electromagnetic noise generated at the surface of these systems.Surface treatment using ion bombardment has shown to reduce electromagnetic surface noise by two orders of magnitude. In this procedure ions usually from noble gasses are accelerated towards the surface with energies of 300eV to 2keV. Until recently, commercial ion guns have been repurposed for surface cleaning. While these guns can supply the ion flux and energy required to prepare the surface with the desired quality, they are bulky and limit the laser access, making them incompatible with the requirements for ion trap quantum computing.To address this limitation, UC Berkeley researchers have developed an ion gun that enables in-situ surface treatment without sacrificing high optical access, enabling in situ use with a quantum information processor.

Scalable Manufacturing of Copper Nanocomposites with Tunable Properties

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a cost-effective method to produce copper-based nanocomposites with excellent mechanical, electrical and thermal properties.

Creation process for a low-density, interconnected metallic foam between nanowires

Researchers at the University of California - Davis, Lawrence Livermore National Laboratory, and Sandia National Laboratory have found an innovative way to create a foam that allows for the creation of interconnected nanostructures between metallic nanowires that allow for the channelization of electrical, magnetic, optical, or chemical properties.

New Classes Of Cage And Polyhedron And New Classes Of Nanotube And Nanotube With Planar Faces

UCLA researchers have developed a novel algorithm that can be used to design unique self-assembled molecules and nanostructures.

Material For Thermal Regulation

Researchers at UCI have developed a lightweight, flexible thermal material that, due to the extent that it is stretched, allows for tunable control of heat flow.

High Performance Platinum-Based Catalyst Combined with Carbon Support Engineering

UCLA researchers in the Department of Materials Science and Engineering have developed a fuel cell catalyst system comprised of platinum-based alloys with a novel carbon support. The fuel cell has improved mass activity targets and increased stability.

Low Band Gap Graphene Nanoribbon Electronic Devices

This invention creates a new graphene nanoribbons (GNR)-based transistor technology capable of pushing past currently projected limits in the operation of digital electronics for combining high current (i.e. high speed) with low-power and high on/off ratio. The inventors describe the design and synthesis of molecular precursors for low band gap armchair graphene nanoribbons (AGNRs) featuring a width of N=11 and N=15 carbon atoms, their growth into AGNRs, and their integration into functional electronic devices (e.g. transistors). N is the number of carbon atoms counted in a chain across the width and perpendicular to the long axis of the ribbon.

Ultra-Sensitive Polybrominated Diphenyl Ether (PBDE) Detector

Polybrominated diphenyl ethers (PBDEs) are a common brominated flame retardant, which are commonly found in consumer products. Because they are not chemically bound to polymers, PBDEs are blended in during formation and have the ability to migrate from products into the environment.  Studies suggest that PBDEs pose potential health risks such as hormone disruptors, adverse neurobehavioral toxins and reproductive or developmental effects.  For this reason it is important to have the capability to sense the presence of PBDEs even in low concentrations.

Pressure Sensitive Fabrics

Piezoelectric sensors have long existed to monitor applied pressures between two objects. In large applications with malleable substrates or where low cost is key, individual piezoelectric sensors are not practical. A variety of applications exist where monitoring the pressure being applied to a soft surface would providing meaningful insights into the system or subject under observation. For instance, in a long-term care setting where patients need to be monitored for pressure ulcers, a bedding material that could sense the pressure points between a person’s body and the mattress could alert care givers that an adjustment in body position is warranted. Likewise, in a sports training application, a pressure sensitive boxing ring canvas could track a boxer’s footwork, or punching power and hand speed if applied to the inside of a punching bag.   Pressure sensitive soft toys could also benefit from feedback that might differ when a child scratches behind their stuffed animal’s ears vs. rubbing its belly.  To achieve discrete sensing in these applications, a low cost bulk sensing system is needed.

Double-Negative-Index Ceramic Aerogels For Thermal Superinsulation

UCLA researchers in the Departments of Chemistry and Biochemistry and Materials Science and Engineering have developed a novel ceramic aerogel material that has robust mechanical and thermal stability under extreme conditions.

Thermodynamic Integration Simulation Method for Filling Molecular Enclosures Using Spliced Soft-Core Interaction Potential

Researchers have developed a simulation method to determine the properties of molecular enclosures based on slow growth thermodynamic integration (SGTI).

A Solution Method To Improve Nanowires Connection And Its Applications In Electro-Related Areas

UCLA researchers in the Department of Materials Science and Engineering have developed a simple solution-based method for fabricating highly conductive transparent silver nanowire (AgNW) films with excellent adhesive capabilities and noteworthy electrical, mechanical, and optical performance.

Generic Method for Controlled Assembly of Molecules

Researchers at the University of California, Davis, in collaboration with researchers at IBM, have developed a widely applicable method to assemble molecules regardless of their intrinsic self-assembly properties.

One Step Process of Forming Complex Coacervation During Spray Drying

Researchers at the University of California, Davis have developed a formation of complex coacervate microparticles by spray drying.

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