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Long Term Isochoric Freezing To Inhibit Biological Contaminants

There are many applications in which there is the need for storage of matter prone to biological contamination for extended period, from days to years. These applications include food, agricultural products, biological matter, and biotechnological matter.  Isobaric (constant pressure) freezing is one method of food preservation, however, freezing causes the deterioration of the quality of the preserved matter. High pressure processing followed by sterilization by refrigerating it at 4 ºC is common, but microorganisms can grow at 4 ºC and the product is sterile for limited periods of time of days. Thus, there is still a need for good preservation technologies that inhibits or reduce growth of microbial contaminants while maintaining their fresh-like characteristics and nutritional value.  UC Berkeley inventors and others have developed a device and methods for long term preservation of matter that inhibits or eliminates biological contaminants with isochoric freezing. 

Reconfigurable Soft Li-Ion Battery

The invention is flexible/stretchable soft battery for devices that seamlessly integrate for human-machine interface applications.  Such reconfigurable and soft batteries will play an important role as power sources can take up a large space in a system. To this end, the conformable/stretchable batteries of the embodiments provide an ideal power sources for these devices. Wearable devices attract lots of interest with a market share of over $116.2 billion/year, projected to be $265.4 billion by 2026

Design For Nesting Height Adjustable Workbenches

Need to transport sturdy adjustable workbenches for use at sea or other temporary work spaces that need anchoring to walls or floors and you can't find a commercially available source?

Ambient-Pressure Regeneration Of Degraded Lithium-Ion Battery Cathodes Via Eutectic Solutions

Lithium‐ion batteries (LIBs) are currently the dominant power sources for portable electronics and electric vehicles, both of which have rapidly growing markets. Recycling and re‐use of end‐of‐life LIBs, to reclaim lithium and transition metal resources and eliminate pollution from disposal of waste batteries, have become urgent tasks. Great effort has been made to recycle LIB cathode materials. State‐of‐the‐art approaches include pyrometallurgy, hydrometallurgy, and direct recycling. The pyrometallurgical approach requires high temperature smelting as well as multi-step purification and separation processes; the hydrometallurgical approach requires acid leaching and subsequent complicated precipitation steps to produce precursors for the re-synthesis of new cathode materials. Both approaches have to totally destroy the LIB cathode particles which represent a significant amount of value from their primary manufacturing process. The direct recycling approach combines physical separation to harvest the cathode materials with high-pressure relithiation to regenerate cathode materials, where the high pressure process greatly increases the cost of regeneration.

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).

Ceramic And Metallic Cellular Structures Wtih Interconnected Microchannels

UCLA researchers in the Department of Mechanical Engineering have developed cellular porous metallic and ceramic structures that can be used to increase the production and recovery of tritium for fusion power reactors or as a support for electrode materials.

A Method Of Making Carbon Coated Oxides As High-Performance Anode Materials

UCLA researchers in the Department of Materials Science and Engineering have developed a carbon-coated silicon nanoparticle-based electrode material for lithium-ion batteries with high energy density and long lifetime.  They have also developed a scalable fabrication method for this material.

3D Magnetic Topological Structures for Information Storage

Researchers at the University of California, Davis, have developed a new way to directly create 3-dimensional topological magnetic structures that allows for efficient information storage with potentially low energy dissipation.

Process For Electrodepositing Manganeese Oxide With Improved Rate Capabilities For Electrical Energy Storage

The invention is a novel method for enhancing the energy, power and performance of lithium ion batteries. It applies a new process for electrodepositing Manganese Oxide in a way that improves the electrical properties as well as the rate at which the battery can operate. Using this method, the energy storage capabilities is boosted significantly; making it faster, more reliable and enabling various applications to become more dependent on electric/battery solutions.

Enhanced Cycle Lifetime With Gel Electrolyte For Mn02 Nanowire Capacitors

The invention is novel way of preparing electrodes for nanowire-based batteries and capacitors with extremely long cycle lifetimes. The proposed assemblies last much longer than any comparable state of the art nanowire energy storage device, without loss of performance, and are comparable to liquid electrolyte-based technologies in terms of their figures of merit.

Nanoporous Tin Powder For Energy Applications

UCLA researchers in the Department of Chemistry and Biochemistry have developed a method of synthesizing micrometer tin particles with nanosporous architecture and have successfully demonstrated the use of these particles as a high energy density anode for Na-ion and Li-ion batteries. 

Nanostructured Metal Oxide Sensing Film From Liquid Precursor

Nanostructured metal oxide materials have generated much interest for sensing applications due to their high surface area, low thermal mass, and superior performance.  However, stable and reproducible integration of these materials into a functional sensor is difficult. Vacuum deposition techniques such as sputtering or evaporation do not offer substantial sensing performance improvement. Sacrificial templating steps have been suggested, but the manufacturing complexity and cost are not suitable for high volume production. There remains a need for a simple, effective method to prepare nanostructured metal oxide films for low power, miniaturized gas sensors with high sensitivity.   Researchers at UC Berkeley have developed a novel method for creating highly porous, nanostructured metal oxide film in a controlled location from a liquid precursor using a localized heat source. This method eliminates processing steps, such as the need to separately synthesize nanomaterials and suspend them into a stable ink for deposition. The localized heat source acts to both evaporate the solvent and thermally decompose the precursor into a highly porous film of nanocrystalline metal oxide, as well as to define the location of the formed film. The utility of this method has been demonstrated for the formation of a tin oxide gas sensor with superior performance, including high sensitivity and fast response and recovery time for carbon monoxide gas. However, the method could be useful for other applications that require localized formation of a porous film of nanocrystalline metal oxide.   

Composition Structure with Tessllated Layers

The technology is a tessellated composite structure that is resistant to tearing and fatigue.It features improved resistance to tearing and fatigue damage and is biased towards compression stress, as opposed to tensile stress.

Hybrid Supercapacitor and Battery System

Researchers at the University of California, Santa Barbara have created a hybrid device that combines the advantages of both batteries and supercapacitors.

Making Nanostructured Porous Hollow Spheres with Tunable Structure

UCLA researchers in the Department of Chemical Engineering have developed a novel method of preparing inorganic nanospheres with porous hollow interiors.

Vertical Heterostructures for Transistors, Photodetectors, and Photovoltaic Devices

The Duan group at UCLA has developed a high current density vertical field-effect transistor (VFET) that benefits from the strengths of the incorporated layered materials yet addresses the band gap problem found in current graphene technologies.

Magnetic and Electrical Control of Magnetic Films

Controlling the magnetic properties of ferromagnetic (FM) layers without magnetic fields is an on-going challenge in condensed matter science with multiple technological implications. External stimuli (e.g., light, electric field) and proximity effects (e.g., materials susceptible to external driving forces) are the most used methods to control the magnetic properties. An interesting possibility along these lines is offered by ferromagnets in proximity to materials that undergo metal-insulator (MIT) and structural phase transition (SPT). SPT and MIT are usually driven by temperature but they may also be driven by current, light and pressure.   Thus, if the magnetism of the FM is affected by the proximity to materials that undergo MIT, then tuning the magnetic properties by multiple stimuli may become possible.

Magnetically Controlled Casting Process

Brief description not available

Low-Voltage Near-Field Electrospinning Enables Controlled Continuous Patterning of Nanofibers on 2D and 3D Substrates

Researchers at the University of California, Irvine have developed a novel method to continuously pattern nanofibers on 2D and 3D substrates. A unique polymer ink formulation provides the right balance of viscosity and elasticity necessary to enable controlled, seamless near-field electrospinning of nanofibers at very low voltages.

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