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187 Results for 'Materials & Chemicals'
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Technology
Low-Temperature, Corrosion-Resistant Integrated Metal Coatings to Improve Efficiency of Coal Plants
In 2008, coal-fired power plants generated 49 percent of electricity consumed in the U.S., more than twice that of any other energy resource. Coal is an important fossil fuel because world coal r...
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John Perepezko, Ridwan Sakidja | P08213US
Technology
More Efficient Production of Polymer Chemical from Biomass Glucose
Beyond its fuel potential, biomass is poised to supplant nonrenewable sources in the production of important building block chemicals. One such intermediary is 5-hydroxymethylfurfural (HMF), a primary...
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James Dumesic, Yomaira Pagan-Torres, Brent Shanks, Tianfu Wang | P120054US01
Technology
Method for Renewably Sourced Diones as Fossil Chemical Alternative in Industry
Attention and investment increasingly look to renewable resources like sugars as foundations for the practical, chemical needs of industry. Diones are such compounds, vital to many processes includin...
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James Dumesic, Mei Chia | P110282US02
Technology
Method to Produce Sorbic Acid and Pentadiene from Renewable Biostock
Sorbic acid has been used extensively as a preservative in a vast array of food. The benefits of sorbates as food preservatives are two-fold: sorbates inhibit a wide spectrum of bacteria, yeasts and m...
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James Dumesic, Mei Chia | P100264US01
Technology
Improved Method for Incorporating and Uniformly Dispersing Nanoparticles into Metal-Based Materials
A nanocomposite is a reinforcing material that can be added to conventional materials to make them lightweight and ductile while also increasing their strength. Nanocomposites having high strength-to-...
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Xiaochun Li, Hongseok Choi, Lianyi Chen, Jiaquan Xu | P120090US01
Technology
Production of Nanoparticle Reinforced Metal-Matrix Nanocomposites from Master Nanocomposites
A nanocomposite includes a matrix material to which nanoparticles (with a size of about 1.0 nm to a few hundreds of nanometers) have been added to improve a particular property of the material. For ex...
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Xiaochun Li, Michael DeCicco, Dake Wang, Hongseok Choi | P110276US01
Technology
Improved Photocatalyst for Reducing Small Molecules
The reduction of small molecules such as nitrogen and carbon dioxide is extremely difficult because one-electron reduction processes often involve high-energy intermediates. Nitrogen reduction usually...
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Robert Hamers, Di Zhu, Nigel Becknell | P120070US01
Technology
Oxidation-Resistant Coatings for Ultra-High Temperature Ceramic-Based Materials
Ultra-high temperature ceramics (UHTCs), SiC-based ceramic matrix composites (CMCs) and cermets are all materials that can be used in high temperature environments; however, these materials need prote...
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John Perepezko, Ridwan Sakidja, Patrick Ritt | P110178US01
Technology
Diazaphosphacycles, Which Are Used to Catalyze Commercially Important Reactions, and Methods of Synthesis
Phosphines have many commercial and industrial uses as attachments to rare earth metal catalysts, including specialized uses in asymmetric hydrogenation and other catalytic transformations. Asymmetric...
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Clark Landis, Wiechang Jin, Jonathan Owen, Thomas Clark, Ryan Nelson | P03130US
Technology
Plasma-Enhanced Functionalization of Substrate Surfaces with Quaternary Ammonium and Phosphonium Groups
Conventional antibacterial agents, including solid, liquid and gaseous disinfectants, exhibit residual toxicity that could lead to medical and environmental problems. Covalently implanting antibacteri...
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Ferencz Denes, Sorin Manolache, Luis Emilio Cruz-Barba, Alvaro De Jesus Martinez-Gomez | P05376US
Technology
Improved Infrared-Responsive Hydrogel for Use in Microfluidics and Optics
Responsive hydrogels can respond to external stimuli such as temperature, pH, photons and antigens, which makes them applicable as functional materials in drug/gene delivery devices, microlenses and s...
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Hongrui Jiang, Chi-Wei Lo, Difeng Zhu | P120025US01
Technology
Fabrication of Complex 3-D Structures Based on Directed Assembly of Self-Assembling Materials
Block copolymer materials self-assemble at the nanometer scale. A chemically patterned substrate can direct the self-assembly, replicating the two-dimensional pattern upwards into the block copolymer ...
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Paul Nealey, Mark Stoykovich, Juan DePablo, Konstantinos Daoulas, Marcus Muller, Sang-Min Park | P06066US
Technology
Method for Disinfecting Liquids in a Dense Fluid Plasma Reactor
Certain bacteria can exist both in the vegetative state and as spores. Spores are dormant states that bacteria assume during nutritionally unfavorable conditions. In the dormant state, spores undergo ...
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Ferencz Denes, Sorin Manolache, Amy C. Lee Wong, Eileen Somers | P02032US
Technology
Protein-Polysaccharide Hybrid Hydrogels
A hydrogel polymer is a naturally occurring or synthetic material which swells in water or some liquid, retaining a large amount without dissolving. Hydrogels find high volume use as industrial, consu...
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Srinivasan Damodaran | P02135US
Technology
Synthesis of Endoperoxide from a Diene and Molecular Oxygen in the Presence of a Photocatalyst
Endoperoxides are prominent structural features of several natural products with potent activity against malaria and various cancer cell lines. However, they are difficult to synthesize. The most stra...
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Tehshik Yoon, Michael Ischay, Jonathan Parrish | P100348US01
Technology
A Supply of the Antibiotic Oligomycin
Oligomycin is a highly stable macrolide antibiotic isolated from the fungus Streptomyces diastochromogenes. It is a potent inhibitor of mitochondrial ATPase and phosphoryl group transfer.
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Glenn Chambliss | P04054US
Technology
Pure, Cyclically-Constrained Gamma-Amino Acids for Medicine and Materials
Unnatural polymers that contain β- and γ-amino acids are known as "foldamers." These foldamers form long-lasting, predictable structures that are very stable and resistant to prot...
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Samuel Gellman, Li Guo, Michael Giuliano | P100030US02
Technology
Synthesis of Proteins and Peptides Selectively Modified by Sulfation, Phosphorylation or Glycosylation
The lack of methods to easily synthesize sufficient quantities of selectively modified peptides and proteins has hindered research on the biological functions and molecular interactions of side-chain ...
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Laura Kiessling, Travis Young | P02386US
Technology
Click Chemistry-Based Multi-Enhanced Biomaterials Help Heal Wounds
Wound healing is a complex and dynamic process of rebuilding skin and tissue. Chronic or impaired wounds result when tissues fail to progress through the necessary stages of healing. This is a signifi...
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Weiyuan John Kao, Yao Fu | P100330US02
Technology
Improved Asymmetric Hydroformylation of Therapeutics Using Novel Bisphosphines
Asymmetric synthesis is important in the pharmaceutical industry because frequently only one optically active isomer, or enantiomer, is therapeutically active. Therefore, it is often desirable to sele...
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Clark Landis, Thomas Clark, Jerzy Klosin | P04447US
Technology
Layer-by-Layer Covalent Assembly of Reactive Ultrathin Films
Methods that allow reactive polymer films to be deposited or assembled on topologically complex substrates are useful for the patterning or chemical modification of surfaces in a broad range of applic...
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David Lynn, Maren Buck, Jingtao Zhang | P08130US
Technology
Simple, Gentle and Chemoselective Method of Synthesizing Diazo Compounds
Diazo compounds, which have the general formula R2C=N2, are versatile intermediates in organic synthesis. They participate in a variety of thermal, photochemical and metal-catalyzed reactions. M...
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Ronald Raines, Eddie Myers | P08318US02
Technology
Traceless Staudinger Ligation for the Synthesis of Peptides and Proteins in Water
UW–Madison researchers previously developed a method of using traceless Staudinger ligation to chemically synthesize proteins (see WARF reference number P00315US). This method is based on ...
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Ronald Raines, Matthew Soellner, Annie Tam | P08350US02
Technology
Efficient Beta2-Amino Acid Synthesis Via Organocatalytic Aldehyde Aminomethylationlation
Beta amino acids are the basic building blocks of beta peptides, which have physiological applications, such as blocking human cytomegalovirus infection. Although some types of beta amino acids are re...
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Samuel Gellman, Yonggui Chi, William Pomerantz, Emily English, William Horne, Li Guo | P06230US
Technology
One-Step Synthesis of Diazaphosphacycles
Phosphines have many commercial and industrial uses as attachments to rare earth metal catalysts, including specialized uses in asymmetric hydrogenation and other catalytic transformations. However, c...
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Clark Landis, Wiechang Jin, Jonathan Owen, Thomas Clark | P01419US