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54 Results for 'Polymers'
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Technology
Nylon-3 Polymers Active Against Clostridium Difficile
Clostridium difficile is a Gram-positive, endospore-forming anaerobe that causes life-threatening intestinal infections. These infections result in more than 14,000 deaths and billions of dollars in h...
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Samuel Gellman, Runhui Liu, Bernard Weisblum, Shonna McBride | P150214US02
Technology
Polymer Coating for Cell Culture Substrates
A stem cell’s microenvironment plays a key role in regulating its behavior (e.g., adhesion, migration, proliferation and differentiation). A variety of templates have been used to study stem cell be...
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Padma Gopalan, William Murphy, Samantha Brittelle | P150079US01
Technology
Broad Application Bioresorbable Polymers
There is a great need and market opportunity for bioresorbable and biodegradable polymers. These polymers could prove useful in a broad range of applications including health care where the polymers c...
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John Droske, Mark Juetten | T100002US02
Technology
Gemini Surfactant LLC Membranes from Thiol-Ene Polymerizations
Lyotropic liquid crystal (LLC) assemblies are useful for highly selective chemical separations, such as water desalination and selective ion-transporting membranes. Bicontinuous cubic LLC assemblies a...
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Mahesh Mahanthappa, James Jennings | P150015US01
Technology
Dense Polymer Brush Growth with New Copolymer
Polymer brushes are a broad class of materials consisting of a polymer chain tethered at one end to a surface. These brushes have a variety of uses given their ability to tune or modify surface proper...
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Padma Gopalan, Daniel Sweat, Myungwoong Kim | P130169US02
Technology
Powering Devices with Piezoelectric ‘Sponge’
Piezoelectric materials produce electric charge in response to mechanical stress. Such materials can be utilized as very small ‘nanogenerators’ that absorb vibrations from the environment (e.g., a...
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Xudong Wang, Ping Zhao, Yanchao Mao | P130228US01
Technology
Environmentally Green Glue
Formaldehyde-based adhesives have been used to make interior plywood and particle board for decades. These synthetic adhesives, which are derived from petroleum, are inexpensive and perform well. Howe...
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Srinivasan Damodaran, Dani Zhu | P130276US02
Technology
An Orthopedic Implant Coating for Enhanced Bone Growth
"Orthobiologics" provides an improved method of treating fractures and other bone defects. This therapy employs inductive molecules, such as bone morphogenetic protein-2 or bone morphogeneti...
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William Murphy, Jae Sam Lee, Mark Markel, Ben Graf | P07031US
Technology
Superior Plastic Parts
Plastics are the most widely used materials in the United States, surpassing steel, copper and aluminum combined by volume. While ubiquitous, fossil-based plastics are becoming more and more costly to...
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Lih-Sheng Turng, Xiaofei Sun | P140042US01
Technology
Smoother Plastic Products Using Microcellular Injection Molding
Several techniques exist for turning plastic into goods and packaging. Microcellular foams are of particular interest because they can be used to produce strong, lightweight plastic. Unfortunately, du...
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Lih-Sheng Turng, Eugene Dougherty, Chris Lacey, Jungjoo Lee, Pat Gorton, Keith Edgett, Xiaofei Sun | P110078US01
Technology
Masks for Growing Nanopatterned Polymer Brushes
Polymer brushes are a broad class of materials made of polymer chains tethered at one end to a substrate. These brushes are able to tune and modify surface properties like bioadhesion and wettability....
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Padma Gopalan, Daniel Sweat, Myungwoong Kim, Eungnak Han | P130118US01
Technology
New Surface-Modifying Film for BCP Formation
Block copolymers (BCPs) self-assemble into well-defined, highly regular and dense nanostructures. Such BCP arrays are useful for fabricating electronic devices like magnetic storage media, quantum dot...
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Padma Gopalan, Eungnak Han, Myungwoong Kim | P130124US01
Technology
Degradable Neutral Layer for BCP Lithography
The lithographic process is one of the most powerful technologies of the digital electronics era. Lithography allows hundreds of millions of components to be fabricated on a single chip with pattern f...
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Padma Gopalan, Daniel Sweat, Jonathan Choi, Myungwoong Kim | P130174US01
Technology
Highly Foamed Plastic Parts Are Stronger and Cheaper to Produce
Microcellular injection molding produces lightweight, dimensionally stable plastic components using fewer raw materials than standard techniques.The process, also known as ‘microcellular foaming,’...
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Lih-Sheng Turng, Xiaofei Sun | P130051US01
Technology
New Conductive Polymers for Lithium Ion Batteries
Batteries can be classified as primary (nonreusable) or secondary (rechargeable). The demand for rechargeable batteries of high energy density and specific energy has surged along with portable electr...
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Mahesh Mahanthappa, Ryan Weber | P120049US02
Technology
Biodegradable Poly(Vinyl Ester) Block Copolymers and Related Poly(Vinyl Alcohol) Surfactants
Common biodegradable polymers such as poly(lactide) and poly (3-hydroxyalkanaoates) are derived from relatively expensive chemical feedstocks and have low melt stability. This presents a challenge for...
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Mahesh Mahanthappa, Corinne Lipscomb, Milton Repollet-Pedrosa | P100170US02
Technology
Degradable Polycations Derived from Amino Acid Vinyl Esters
Degradable polyelectrolytes are useful materials for a variety of biological applications, from implant coatings and immunostimulants to therapeutic and gene delivery. Many of these applications rely ...
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Mahesh Mahanthappa, Corinne Lipscomb, Glen Thomas | P120121US02
Technology
Manufacturing Polymer Micropellets
Polymer-based micropellets can be formed having diameters smaller than 50 microns. The miniscule particles are vital to a number of processes like laser sintering—used to build rapid prototypes and ...
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Tim Osswald, Martin Launhardt | P100314US02
Technology
Controlling the Size and Shape of Polymer Micropellets
Polymer-based pellets are utilized in plastics manufacturing. In particular, very small micropellets and powders are in special demand for processes like selective laser sintering (SLS), which require...
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Tim Osswald, William Aquite | P130088US01
Technology
Crosslinkable Gemini Dicarboxylate Surfactant LLCs and Their Membranes
Aqueous lyotropic liquid crystal (LLC) assemblies are useful for highly selective chemical separations, such as water desalination and selective ion-transporting membranes. LLCs are formed in water wh...
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Mahesh Mahanthappa, Gregory Sorenson | P120048US02
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
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
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
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
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