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Observing single nanoparticle collisions at ultramicroelectrodes

Technology description Metal nanoparticles (NPs) have been of interest in many fields, often because of their large surface-to-volume ratio and size dependent optical properties. Most research on NPs has focused on ensemble-averaged properties, but there have been investigations of the electrochemical behavior of an immobilized single NP, despite the...

Published: 12/11/2023 | Inventor(s): Allen Bard, Hongjun Zhou, Fu-Ren Fan

Keywords(s): Diagnostics, Sensors

Category(s): Physical sciences

Electrochemical production of solar-grade silicon films from SiO₂

Background Silicon thin films are an important limitation for solar photovoltaic cells. Currently, manufacturing of these films are from single crystal silicon and a large amount of raw material is wasted. Single crystal silicon is not a cheap commodity. Thus, the sawing process used on single crystal silicon is costly not only from a manufacturing...

Published: 12/11/2023 | Inventor(s): Allen Bard, Sung Ki Cho, Fu-Ren Fan

Keywords(s): Silicon nanocrystals

Category(s): Physical sciences > Green tech

Anti-Bacterial, Corrosion-Resistant Coating for Dental and Orthopedic Implants

Biocompatible SiC Thin Film Resists Corrosion and Abrasion and Inhibits Bacterial Growth This coating for medical implants minimizes surface corrosion and inhibits the formation of bacterial biofilm while maintaining biocompatibility. The global medical device coatings market is expected to reach $17.4 billion in value by 2023 . The largest segment...

Published: 2/22/2024 | Inventor(s): Josephine Esquivel-Upshaw, Arthur Clark, Fan Ren, Samira Camargo

Keywords(s):

Category(s): Technology Classifications > Human Health Care > Others, Technology Classifications > Medical Devices > Consumable

Antibacterial Coating for Dental Implants

Reduces the Progression of Peri-implant Disease and Minimizes the Surface Degradation and Fracture Susceptibility of Dental CeramicsThis antibacterial coating for the titanium screw that attaches the new implant to the bone of the jaw reduces the progression of peri-implant disease, which can lead to bone loss and eventual loss of the implant. Implants...

Published: 2/22/2024 | Inventor(s): Christopher Batich, Fan Ren, Arthur Clark, Patrick Carey, Josephine Esquivel-Upshaw

Keywords(s): Anti-bacterial, Bacterial, Coating, Dental, implant

Category(s): Technology Classifications > Human Health Care > Others, Technology Classifications > Medical Devices > Equipment

Monolithic White and Multi-Color Lasers Tunable in Full Visible Spectrum

Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current...

Published: 2/23/2023 | Inventor(s): Cun-Zheng Ning, Sunay Turkdogan, Zhicheng Liu, Fan Fan

Keywords(s): Materials and Electronics

Category(s): Advanced Materials/Nanotechnology, Chemical/Biological Sensors, Energy & Power, Imaging, Medical Imaging, Physical Science, Physics, Proteomic Assays/Reagents/Tools, Semiconductor Devices, Semiconductors, Materials & Processes

Dielectric Coatings for More Durable Fixed and Removable Dental Prosthetic Restorations

Coatings Protect Against Corrosive Oral Environments and Improve Survival Rate for Prosthetics This dielectric coating process increases the durability and survival rate of fixed or removable dental prosthetic restorations by layering different dielectric materials capable of withstanding acidic and basic pH environments. Fixed restorations include...

Published: 2/22/2024 | Inventor(s): Josephine Esquivel-Upshaw, Fan Ren, Arthur Clark

Keywords(s): acrylic resin material, Coating, crowns, bridges, inlays and onlays, Dental, fixed and removable prosthetic restorations, Material, Prosthesis

Category(s): Technology Classifications > Human Health Care > Others, Technology Classifications > Medical Devices > Equipment

Sensor Increases Detection Sensitivity of Ammonia Gas

Effectively Detects Ammonia Gas ConcentrationThis gas sensor detects ammonia gas by utilizing a highly electron mobility transistor (HEMT), a device used to amplify or switch electronic signals and electrical power. Ammonia gas is used to reduce nitrogen oxides (NOx) through selective catalytic reduction (SCR) to prevent acid rain and smog formation....

Published: 6/27/2021 | Inventor(s): Stephen Pearton, Fan Ren, Soohwan Jang

Keywords(s): ammonia sensor, high temperature applications, ZnO

Category(s): Technology Classifications > Engineering > Instrumentation-Sensors-Photonics

Hydrogen Sensors That Are Impervious to Water but Sensitive to Gas

PMMA Encapsulation of Semiconductor-Based Hydrogen Sensor Effectively Increases Accuracy of Hydrogen Gas Detection by Blocking Water Molecules while Permitting the Penetration of the Hydrogen MoleculesThis poly(methyl methacrylate) (PMMA)-encapsulated Schottky diode protects hydrogen sensors from humidity without affecting their ability to detect hydrogen....

Published: 6/27/2021 | Inventor(s): Stephen Pearton, Fan Ren, Soohwan Jang, Sunwoo Jung

Keywords(s): Gas Sensor, humidity or water insensitive, polymer encapsulation

Category(s): Technology Classifications > Engineering > Electrical, Technology Classifications > Environmental > Others, Technology Classifications > Human Health Care > Diagnostics, Technology Classifications > Medical Devices > Others

Self-Repairing Semiconductor for Radio Frequency Communication and DC Power

Automatically Repair Wear to Semiconductor Chips with an On-Chip Heater DesignThese self-repairing semiconductor designs can be integrated into computer processors for radio communication in high temperature or high radiation environments. Worldwide sales of semiconductors in 2014 reached $335.8 billion, up 9.9 percent from 2013. Low-power satellites...

Published: 6/27/2021 | Inventor(s): Stephen Pearton, Fan Ren

Keywords(s): long life-time, self-healing alloy, Transistors

Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Electrical

Fast-Acting, Portable, Wireless Aquatic Pathogen Sensor

Allows Hobbyists to Detect Pathogens Without Regulatory Oversight InventionThis sensor detects harmful pathogens threatening the world’s oyster fisheries and the overall aquaculture industry. Perkinsus species protozoans kill oysters, resulting in damage to the environment and economic losses to the shellfish industry. Perkinsus marinus has wreaked...

Published: 2/22/2024 | Inventor(s): Fan Ren, Stephen Pearton, Yu-Lin Wang, Barbara Sheppard

Keywords(s):

Category(s): Technology Classifications > Engineering > Electrical

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