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Enriching Inlet
THE CHALLENGE More than 99.9999% of air is comprised of gases that are not chemically reactive (e.g., nitrogen, oxygen, carbon dioxide), even in polluted regions. The remaining <0.0001% of air includes all the components that form what we typically think of as air pollution (toxic odors, particulate matter, ozone, etc.). Due to these extremely low...
Published: 10/11/2021   |   Inventor(s): Gabriel Isaacman-Van Wertz
Keywords(s):  
Category(s): Environment, Chemicals, Consumer Products, Engineering, Materials
Unlocking True 3D Printing Potential
THE CHALLENGE 3D printing has transformed industries by enabling the use of Additive Manufacturing (AM) techniques. Unfortunately, most 3D printing is done by sequentially printing two dimensional layers; this means that classic 3D printers are unable to fabricate parts with complex load paths. The weaknesses introduced at layer interfaces significantly...
Published: 4/26/2021   |   Inventor(s): Joseph Kubalak, Christopher Williams
Keywords(s):  
Category(s): Engineering, Computer Software, Materials
Robotic High Throughput Rheology Platform
THE CHALLENGE Current gel material characterization techniques are low throughput, present barriers to process integration, and are limited regarding the frequency range over which rheological properties can be characterized. As a result, they limit the pace of materials discovery, thus shifting the paradigm of material characterization towards the...
Published: 3/8/2021   |   Inventor(s): Blake Johnson, Alexander Haring, Manjot Singh, Junru Zhang
Keywords(s):  
Category(s): Materials, Devices, Engineering
3D Printable Multifunctional Fibers
THE CHALLENGE 3D printing has enabled the customized production of many objects and devices, but that technology currently only creates passive units. THE SOLUTION Researchers at Virginia Tech have developed a coaxial micro-extrusion technique that enables us to take advantage of triboelectric energy generation and custom build sensors to fit anywhere....
Published: 3/5/2021   |   Inventor(s): Blake Johnson, Yuxin Tong, John Robertson, Xiaoting Jia, Ziang Feng
Keywords(s):  
Category(s): Engineering, Biotechnology, Materials, Biomedical, Devices, Diagnostic, Energy
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 nanoparticles,...
Published: 6/13/2017   |   Inventor(s): Guoliang Liu, Assad Khan
Keywords(s):  
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 energy...
Published: 3/30/2017   |   Inventor(s): Yongke Yan, Shashank Priya
Keywords(s):  
Category(s): Electrical, Materials, Energy
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 materials...
Published: 2/20/2017   |   Inventor(s): Louis Madsen, Ying Wang
Keywords(s):  
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 category...
Published: 1/31/2017   |   Inventor(s): Nicholas Chartrain, Viswanath Meenakshisundaram, Christopher Williams
Keywords(s):  
Category(s): Engineering, Computer Hardware, Materials
Porous Carbon Fiber from Block Copolymers
Carbon fibers are used in a wide range of industries and applications including composites, catalysis, sensing, energy conversions and storage and membrane filtration. One approach to make carbon fibers utilizes electrospinning of block copolymers. However, due to challenges associated with the technique, it can be difficult to produce carbon fibers...
Published: 1/31/2017   |   Inventor(s): Guoliang Liu, Zhengping Zhou
Keywords(s):  
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 hydrogen...
Published: 1/27/2017   |   Inventor(s): Shigeo Ted Oyama, Samhun Yun, Sheima Jatib Khatib
Keywords(s): Materials/Fibers,Textiles, Membranes
Category(s): Materials
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