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Plasmonic Nanoparticle Layers With Controlled Orientation
Such materials have extraordinary optical and plasmonic properties that can find broad applications in light management and light-activated sensing, mechanical, electronic application. Examples include windows for energy-efficient buildings which control light transmission, electronic devices that utilize the hot electrons generated by plasmonic na...
Published: 6/13/2017   |   Inventor(s): Guoliang Liu, Assad Khan
Category(s): Materials, Electrical, Energy, Engineering, Consumer Products, Computer Hardware, Process/Procedures
Composition, Structure, and Method for Fabrication of Tunable Inductors with Large Tunability
Tunability of conventional inductors is achieved either by mechanically tuning through bias magnet(s) or by adjusting the electric current in solenoids/electromagnets. These devices are typically bulky, slow, noisy, and inefficient. Various efforts have been devoted towards developing voltage tunable inductors that have large tunability and low ene...
Published: 3/30/2017   |   Inventor(s): Yongke Yan, Shashank Priya
Category(s): Electrical, Materials, Energy
A Method for Multi-Material Additive Manufacturing and Its Use on Producing Multimaterials with Complex Architectures
This invention discloses an advanced, additional system and a method to provide multi-feed material for free-form fabrication of 3D objects build by a stereolithography-based (SL) 3D printer. Especially, this system and method can facilitate low-volume printing and high-speed resin change in a SL 3D printer. The final printed multi-material object ...
Published: 3/30/2017   |   Inventor(s): Xiaoyu Zheng
Category(s): Engineering, Materials, Process/Procedures
Gel for Ion Conduction Applications with Mechanical Strength
As key components of many energy storage and conversion technologies, polymer electrolyte materials allow for selective ion transport in diverse applications such as fuel cell membranes, battery separators, electro-responsive actuators, reverse-osmosis water purifiers, and solar cells. For electrochemical devices, solid-state polymer electrolyte ma...
Published: 2/20/2017   |   Inventor(s): Louis Madsen, Ying Wang
Category(s): Chemicals, Computer Hardware, Consumer Products, Devices, Electrical, Energy, Engineering, Materials
Apparatus for High Temperature Stereolithography
Stereolithography (SLA) has traditionally been limited to low viscosity resins that flow easily at room temperature. These constraints greatly limit the molecular weights and polymeric classes of the oligomeric components that can be used. Many of the strongest and highest glass-transition temperature (Tg) engineering polymers fall into this catego...
Published: 1/31/2017   |   Inventor(s): Nicholas Chartrain, Viswanath Meenakshisundaram, Christopher Williams
Category(s): Engineering, Computer Hardware, Materials
Porous Carbon Fiber from Block Copolymers
Carbon fiber is an important low-density material that has outstanding mechanical strength, electric conductivity, fire resistance, high chemical resistance, high operational temperature tolerance, low coefficient of thermal expansion, and excellent electromagnetic interference shielding properties. Porous carbon fibers that span the pore size acro...
Published: 1/31/2017   |   Inventor(s): Guoliang Liu, Zhengping Zhou
Category(s): Chemicals, Materials, Engineering, Energy, Electrical
Sulfur-Resistant Palladium or Palladium-Alloy Membranes for Hydrogen Separation
Hydrogen separation membranes are important for the purification of hydrogen for use in the production of chemicals, the refining of petroleum, and in energy conversion devices such as fuel cells. Among the best membranes are palladium membranes, but these are susceptible to poisoning by sulfur. Sulfur is a common contaminant in feedstocks for hydr...
Published: 1/27/2017   |   Inventor(s): Shigeo Ted Oyama, Samhun Yun, Sheima Jatib Khatib
Keywords(s): Materials/Fibers,Textiles, Membranes
Category(s): Materials
Bio- and Photodegradable Thermoplastic Elastomers and Methods for Their Preparation
Polylactide (PLA) is a biodegradable and renewable polymer, but it is not mechanically tough. Cellulose is an extremely abundant renewable feedstock, but it is difficult to process and also not mechanically tough. Thus, applications of these polymers are limited to those in which little stress is involved. PLA can be toughened by making it into a t...
Published: 10/11/2016   |   Inventor(s): John Matson, Kyle Arrington, Kevin Edgar
Category(s): Materials
Mouse Hybridoma Clone Producing Monoclonal Antibodies Specific to Porcine CD137
CD137 is a receptor expressed on the surface of activated CD4 and CD8 T cells, (FOXP3pos) T regulatory cells, dendritic cells, monocytes, eosinophils, natural killer cells and natural killer T cells. It has been widely used as a surrogate marker for antigen-specific T cells and purification of antigen-specific T cells after in vitro antigen stimula...
Published: 8/29/2016   |   Inventor(s): Sakthivel Subramaniam, Xiang-Jin Meng
Category(s): Animal/Veterinary, Materials, Diagnostic
Piperazine-containing Dilithium Anionic Initiators for Isoprene Polymerization
A novel process that uses piperazine-containing dilithium anionic initiators has been developed at Virginia Tech. This process has yielded unprecedented polymerization of isoprene and polystyrenic block copolymers with improved specificity and repeatability. Resulting products could include any number of low-VOC adhesive and coatings.
Published: 8/19/2016   |   Inventor(s): Alison Schultz, Sachin Bobade, Timothy Long
Category(s): Chemicals, Process/Procedures, Consumer Products, Materials, Engineering
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