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Fast Micro- or Nano-scale Resolution Printing Methods and Apparatus

Fast, affordable three-dimensional printing or 3D manufacturing at micron or nano-scale is a holy grail for many high-tech industries. Current state of the art has generally been limited to smallest feature sizes in the 5-10 micron range, with metal-based 3D printer systems held at 100 microns. Another problem is 3D printers are limited to polymer media or require large laser sources. To address these issues, researchers at the University of California, Berkeley, have developed methods and devices to efficiently deposit desirable constituent materials (e.g. metallic, semiconducting, insulating, etc.) with precise micron and nano-scale resolution and without expensive laser requirements. These methods show promise in terms of fast sub-5 micron print speeds, material versatility, and structure sophistication. This is an entirely new fabrication tool, which is unencumbered by the limitations of existing 3D print-like functions, paving the way to arbitrary 2D and 3D nanoscale structures and devices that cannot be fabricated in any other way.

Multifunctional Cement Composites With Load-Bearing And Self-Sensing Properties

This invention consists of a rapid, simplified, lower-cost method for production of a cement composite with enhanced load-bearing and damage detecting properties.

Durable, Plasticization-Resistant Membranes using Metal-Organic Frameworks

Over the last several decades, polymer membranes have shown promise for purifying various industrial gas mixtures. However, there are a number of potential applications in which highly polarizable gases (e.g., CO2, C3H6, C3H8, butenes, etc.) diminish membrane selectivities through the mechanism of plasticization. Plasticization is the swelling of polymer films in the presence of certain penetrants that results in increased permeation rates of all gases, but an unwanted, and often times, unpredictable loss in membrane efficiency. Current strategies for reducing plasticization effects often result in a reduction in membrane permeability. To address the need for plasticization-resistant membranes that retain good separation performance, researchers at UC Berkeley have developed a novel method for improving polymer membrane stability and performance upon the incorporation of metal-organic frameworks (MOFs). This method can be applied to a broad range of commercially available polymers as well as enable new polymers to be commercialized.

High Performance, Rare Earth-free Supermagnetostrictive Structures and Materials

Magnetostrictive materials convert magnetic fields into mechanical strain and vice versa. They are widely used in sensors, actuators, electrical motors and other technological devices. The materials currently used for these applications are relatively inefficient (e.g. nickel or iron-aluminum alloys) or are very expensive (e.g. Terfenol-D). To address these challenges, researchers at the University of California, Berkeley, have developed a process framework using incipient martensitic transformations to achieve useful magnetostriction in relatively inexpensive materials. Early laboratory models suggest the Berkeley materials have comparable behavior to rare earth-based counterparts, with preliminary data to suggest superior performance than both rare earth-based and rare earth-free materials on the market today.

Process for the Fabrication of Nanostrucured Arrays on Flexible Polymer Films

The technology is a process for making arrays of nanostructures on polymer films.It features a two step process for creating thin polymer films with unique optical and wetting properties that can be used for coating both planar and curved surfaces.It is possible to implement this process in a mass fabrication process over large areas.

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.

Processing Spinel-Less Thermal Barrier Coating Systems Via Pre-Oxidation and Evaporation

The technology is a two-step process to produce a thermally grown oxide layer that is completely devoid of harmful spinel oxides, for the purpose of extending the lifetime of turbine engine blades’ thermal barrier coatings.It features a two step process utilizes ambient pressure and everyday gases at industry-standard temperatures which yields a completely spinel-less TGO–YSZ interface.

Devices and Methods for 3D Printing of Highly Ordered Composite Materials

A synthesis technique for the precise and tunable ordering of anisotropic particles in composite materials. 

Low-Pressure High-Capacity Storage System for Sustainable Hydrogen Economy

Hydrogen-fueled cell vehicles could gain ground as global researchers develop better processes to produce hydrogen economically from sustainable resources like solar and wind. On an energy-to-weight basis, hydrogen has nearly three times the energy content of gasoline (120 megajoule or MJ, per kilogram or kg, for hydrogen, versus 44 MJ/kg for gasoline). One problem is storing enough hydrogen on-board to achieve a reasonable driving range of 300 to 400 miles. On energy-to-volume basis, hydrogen takes up nearly three times the volume of gasoline (8 MJ/liter for cryogenic liquid hydrogen versus 32 MJ/liter for gasoline). Another problem is related to next-generation solid absorbents like metal hydrides, which typically show weakness in terms of the amount of gas that can be absorbed and delivered. To address these problems, researchers at the University of California, Berkeley, and Lawrence Berkeley National Laboratory, have developed a composite material using nanostructured metal hydrides that is capable of storing three times more hydrogen per volume at room temperature than a comparable cryogenic liquid hydrogen tank. Furthermore, low hydrogen pressures during absorbing and desorbing have been achieved. This represents a significant economic and safety advantage over technologically complex and costly high-pressure (10,000 psi) hydrogen tanks commonly used in mobile hydrogen storage applications today.

Novel Quantum Dot Field-Effect Transistors Free of the Bias-Stress Effect

Novel quantum dot field-effect transistors without bias-stress effect that also have high mobility and are environmentally stable.

Coating Or Polish Removable By An Aqueous Solution Of Cysteine

The invention described is a nail polish base coat that can be dissolved using an aqueous solution of cysteine. Current nail polishes and base coats are removed using a combination of vigorous scrubbing and soaks in harsh chemicals such as ethyl acetate or acetone for long periods of time. The polymer described in this invention would eliminate exposure to harsh chemicals and vigorous scrubbing. Therefore making the process of nail polish removal more comfortable and healthier nails for frequent nail polish users.

Oil-Tolerant Polymer Membranes for Oil-Water Separations

Professor Eric Hoek and colleagues have developed a new and inexpensive polymer membrane based on a polyvinyl alcohol and polysulfone composite. The membrane has demonstrated >99% oil removal from large volumes of water.

Metal-Organic Frameworks For Aromatic Hydrocarbon Separations

Nearly all hydrocarbons are generated from petroleum or natural gas processing. Hydrocarbon mixtures are separated into component fractions at scale for the commercial production of fuels and chemical feedstocks. These large-scale systems use a lot of energy and require many sub-systems with expensive adsorbents or membrane materials like zeolites, polymers, metal oxides, and carbon. Since many of these hydrocarbon mixtures have molecules with similar structures, properties, and reactivities, many of the technical challenges and associated high costs remain. Metal-organic frameworks (MOFs) hold promise for efficient and complex separations based on their desirable surface areas, tunable pore geometries, and adjustable surface functionality. To help align MOFs with challenges in hydrocarbon separations, researchers at UC Berkeley have developed thermally robust and tunable MOF materials which are capable of separating mixtures of saturated, unsaturated, and aromatic hydrocarbons. The researchers have demonstrated the purification of a four component gas-phase mixture. 

Methods for Improving Limestone Utilization in Concrete

Researchers at UCLA have improved the utilization of limestone in concrete by developing a system for tailoring the processing parameters to achieve pre-defined mechanical properties and designing processing conditions that enhance the reactivity of the limestone additives.

Multi-Dimensional Networks

Brief description not available

Polyanaline Nanofibers

Brief description not available

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