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187 Results for 'Materials & Chemicals'
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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
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
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 proteolytic d...
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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. Most ...
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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 the Stau...
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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
Method of Orientating Fillers in Polymer Composite Materials
Over the past decade, polymer composites have emerged as a new class of high performance materials with unique and desirable material properties such as strength, weight and rigidity. These composites...
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Xiaochun Li, Lih-Sheng Turng, Larry Holmes, Yiyan Peng | P09239US
Technology
Systems and Methods for the Cyclotron Production of Iodine-124
Position emission tomography (PET) plays a vital role in the diagnosis of health and disease. The long-lived isotope iodine-124 (I-124; half-life 4.2 days) has many features that make it an attractive...
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Jonathon Nye, Robert Nickles | P04326US
Technology
Organoelement Resists for EUV Lithography
Extreme ultraviolet (EUV) lithography is one of the most promising techniques for creating semiconductor devices, integrated circuits and microelectronic devices with nanoscale features (i.e., smaller...
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Paul Nealey, Franco Cerrina, Lin Zhu, Junyan Dai, Christopher Ober | P04335US
Technology
Semi-Solid Forming of Metal-Matrix Nanocomposites
Semi-solid casting (SSC) is a high-integrity die casting technique, wherein metal is injected into a mold cavity in a semi-liquid/solid state with a “slushy” consistency. Semi-solid metal has lowe...
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Xiaochun Li, Lih-Sheng Turng, Michael DeCicco | P05344US
Technology
Heterogeneous Protein Foldamers Containing Alpha, Beta and Gamma Amino Acids
Foldamers are synthetic protein oligomers with discrete and predictable folding properties akin to those of natural proteins. They provide molecular tools to investigate large-molecule interactions su...
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Samuel Gellman, Ahlke Hayen, Margaret Schmitt, Felix Ngassa | P02125US
Technology
Zirconium-Rich Bulk Metallic Glass Alloys
Bulk metallic glasses (BMGs) exhibit unique properties including high strength, excellent wear and corrosion resistance, high resistance to fractures and outstanding castability. They are also inexpen...
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Y. Austin Chang, Hongbo Cao, Dong Ma, Ling Ding, Ker-chang Hsieh | P04251US
Technology
Producing Methyl Vinyl Ketone from Levulinic Acid
Levulinic acid is a biomass-derived compound that can be obtained inexpensively in high yields from a variety of waste cellulose-containing materials. It has been identified as a top biomass-derived c...
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James Dumesic, Ryan West | P09350US01
Technology
Friction-Stir Welding of Dissimilar Metals with High Weld Strength
Recent surveys have identified welding of dissimilar metals as a top priority in materials joining technology. Friction-stir welding currently is the best potential process for welding dissimilar meta...
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Sindo Kou, Vahid Firouzdor | P09344US01
Technology
Nanoporous Protective Coatings for Corrosion and Wear Resistance of Metal Substrates
Heat exchangers are used in chemical processing; power production; household appliances such as air conditioners, refrigerators and space heaters; and even automobile radiators. Plate heat exchanger...
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Marc Anderson, Maria Isabel Tejedor-Anderson, Ole Christensen | P08101US02