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Heavy Metal Sensing
VALUE PROPOSITION Heavy metal pollution in soils is widespread in the world, resulting from both natural sources and human activities (e.g., mining and smelting, industrial emission, fossil fuel combustion, etc.). Due to their toxicity, bioaccumulation, and environmental persistence, elevated levels of heavy metals in the environment pose major threats...
Published: 9/13/2024   |   Inventor(s): Wen Li, Hasan Banna, James Siegenthaler
Keywords(s):  
Category(s): Agriculture, Analytical Instruments, Environment, Test and Measurement
Fabrication of metal-insulator-semiconductor photoelectrodes
Background Photoelectrochemical (PEC) water splitting is a promising technology for converting solar energy into clean and storable chemical energy. In PEC cells, semiconductors play a key role in absorbing photons from the light source to create mobile charge carriers. Various semiconductor materials have been studied for the high-performance PEC cells,...
Published: 12/11/2023   |   Inventor(s): Edward Yu, Soonil Lee, Li Ji
Keywords(s):  
Category(s): Physical sciences > Semiconductor, Physical sciences > Green tech
PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids
The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...
Published: 7/30/2024   |   Inventor(s): Payman Dehghanian, Shiyuan Wang, Li Li
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment
On-line and Off-line Coupling of Electorchemistry (EC) with Mass Spectrometry by Liquid Sample DESI OU [ID: #09030]
A variety of ambient ionization methods have been introduced, including desorption electrospray ionization (DESI). DESI is a representative method for ambient mass spectrometry. It has been shown to be useful in providing a rapid and efficient means of desorbing and ionizing a variety of target compounds of interest under ambient conditions. In U.S....
Published: 2/23/2022   |   Inventor(s): Hao Chen, Jiwen Li, Zhixin Miao
Keywords(s):  
Category(s): Physical Science > Chemistry, Life Science > Mass Spectrometry
Implantable Neural Microelectrodes and Fabrication Method
Executive SummaryMicroelectrodes have become vital in the current-day attempt to map and understand the human brain, as well as delivering unique therapeutic solutions. These microelectrodes are able to work as biosensors, picking up changes in potential and electrophysiology. In particular, extracellular sensors can record data on neurotransmitter...
Published: 2/17/2023   |   Inventor(s): Wen Li, Yue Guo, Thomas Schuelke, Michael Becker, Robert Rechenberg, Cory Rusinek
Keywords(s):  
Category(s): Advanced Materials, Biotechnology, Devices
Flexible Hybrid Diamond Biosensor
Executive SummaryA unique fabrication method creates a new flexible and implantable thin film sensor for the biochemical, medical and neural engineering fields. This diamond-polymer hybrid demonstrates improved biocompatibility, durability and chemical sensing capabilities. Description of TechnologyThe rigidness and attachment incompatibilities of...
Published: 6/8/2021   |   Inventor(s): Wen Li, Bin Fan, Michael Becker, Robert Rechenberg
Keywords(s):  
Category(s): Advanced Materials, Devices
Wireless Intraocular Pressure Sensor to Monitor Glaucoma Patients
Executive SummaryGlaucoma is a leading cause of blindness that affects up to 3 million people in American. It can remain undetected until permanent vision loss is present. Measuring eye pressure during an office visit is a standard diagnostic tool. However, this measurement can only report on pressure during a brief time sample. Patients with variable...
Published: 6/15/2023   |   Inventor(s): Wen Li, Arthur Weber, Mohammad Hossein Kouhani
Keywords(s):  
Category(s): Medical, Biotechnology, Test and Measurement
Transparent Electrode Array for Optogenetics
Executive SummaryThe development of brain-machine interface technologies offer a host of opportunities for basic research, real-time therapeutic devices, and neural prosthetics. Our bi-directional communication channel provides for a more robust brain-machine interface with greater accuracy. The bi-directional communication channel is also critical...
Published: 6/15/2023   |   Inventor(s): Wen Li, Ki Yong Kwon
Keywords(s):  
Category(s): Medical, Biotechnology, Devices
Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 4/3/2023   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 4/3/2023   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources