US – Page 35 – TechConnect Briefs

Label-free, rapid Listeria monocytogenes biosensor based on a stimulus response nanobrush and nanometal hybrid electrode

Althawab S., Oliveira D.A., Smith C., McLamore E.S., Gomes C., Texas A&M University, US

Recent foodborne outbreaks have heightened public concern about food safety and created a greater impetus to improve methods for foodborne pathogen detection. The most prevalent foodborne pathogens that persistently cause infections include Salmonella Typhimurium, Listeria [...]

Organic Nanobiomimetic Memristor/Memcapacitor Devices Ultrasensitive Direct Detect Matrix Matelloproteinase-2 in Human Serum

Chen E.T., Thornton J., Duh S-H, Advanced Biomimetic Sensors, US

Matrix Matelloproteinase-2 (MMP-2) plays a key role in many diseases. A new type of dual-functioning device was developed for fast, direct ultrasensitive detection of MMP-2 using NIST SRM965A reference human serum specimens under label-free, probe-free [...]

Damage Detection Sensor System for Aerospace and Multiple Applications

Williams M., Lewis M., Gibson T., Lane J., Ihlefeld C., National Aeronautics and Space Adminstration, US

Martha K, Williams, Ph.D., Mark E. Lewis, Tracy L. Gibson, Ph.D., John E. Lane, Ph.D. and Curtis M. Ihlefeld The damage detection sensory system is an intelligent damage detection “skin” that can be embedded into [...]

Biosensor prototype based on carbon nanotubes for the RF-detection and NIR-treatment of HeLa cells

Caro G., García K., Avalos J., Morell G., University of Puerto Rico, US

The World Health Organization’s Annual Report on Cancer indicates that, in 2008, 12.4 million new cases and 7.6 million deaths from cancer alone were recorded around the world. Some of the treatments for HeLa cancer [...]

A Noninvasive Fluorescent Biosensor for Transdermal Glucose

Tolosa L., Brown S., Tiangco C., Corson E., University of Maryland Baltimore County, US

Our group has been developing a painless, noninvasive method of collecting glucose spontaneously/passively diffusing through the skin. The transdermal glucose collected in this manner has a concentration in the μM range, thus we developed a [...]

Visible Light Absorbing Photoremovable Protecting Groups

Juetten M., Iowa State University Research Foundation, US

Photoremovable protecting groups (or “photocages” or “phototriggers”) are light-sensitive chemical moieties that provide control over the release of any number of reagents in a variety of environments. While photocages have important applications in areas such [...]

Evaluation of In2O3 prepared by the delayed ignition combustion process as a gas sensor

Lionti K., Fasoli A., Sundberg L., Ceccarelli F., Miller R.D., Bozano L., IBM Research - Almaden, US

Metal oxide semiconductor (MOS) gas sensors based on thin film technology offer the potential of higher sensitivity and faster response and recovery than their thick film counterparts. Solution-based approaches are facile and inexpensive routes to [...]

Cyber-Physical Magnetic Field Sensors

Kravljaca V., Rochester Institute of Technology, US

Solid state magnetic field sensors are examined. The use of III-V semiconductors in Hall effect sensors results in high bandwidth, fast response time, adequate spatiotemporal resolution, accuracy and sufficient measurement range. Despite significant advantages, there [...]

Zinc Oxide optical and chemical sensors fabricated by Ink Jet printing and drop casting

Ewing D.J., Casper M., Stramel A., Morick B., Cook B., Wu J., The Department of Energy's Kansas City National Security Campus, US

Zinc oxide (ZnO) nanostructures show great promise for a variety of applications, such as UV detectors, chemical, and gas sensors. Zinc oxide has a direct bandgap (3.4 eV), a high electron mobility, and environmental stability. [...]

A New Gas/Supercritical Fluid (SCF) Diffusivity and Solubility Measurement Method for CO2 Saturated Polymer Systems Using Optical Transmission Property

Yao S.X., Lee J-K, Lee J., Lee P-C, Lee J-K, Lee J., Lee P-C, Jun M.B.G., Lee J-K, Lee J., Lee P-C, University of Vermont, US

Supercritical fluids (SCFs) and gases are widely used in polymer processing. For example, plastic foam products used for light-weight structural components, heat insulation, and food packaging can be fabricated by nano-/micro-cellular foaming processes with gases [...]