Medical & Biotech – Page 145 – TechConnect Briefs

CNT-Array Integrated SoC for Biological Sensor Applications

Seo S.M., Cheon J-H, Lee B-Y, Lee J-H., Lee M., Lee B-Y, Lee J-H., Lee M., Im J., Lee B-Y, Lee J-H., Lee M., Chung I-Y, Hong S., Park Y.J., Min H.S., Seoul National University, KR

8x8 carbon nanotube (CNT) arrays are integrated on top of the CMOS chip. The CNTs are functionalized to detect the target ions, and the I-V characteristics are altered by the bio-chemical reaction. The sensing circuit [...]

Polymerized Crystalline Colloidal Arrays Photonic Cosmetic Contact Lenses

Alexeev V.L., Cano G.G., Asher S.A., Glucose Sensing Technologies LLC, US

We demonstrated the feasibility of making contact lenses from polymerized crystalline colloidal array material to produce beautiful sparkling colors. This material is mainly a poly[HEMA-(ethyleneglycol) 200 dimethacrylate] hydrogel with a crystalline colloidal array (CCA) embedded [...]

Nanoparticle Labels/ Electrochemical Immunosensor for Detection of Biomarkers

Liu G., Wang J., Lin Y., Pacific Northwest National Lab, US

A sensitive electrochemical immunoassay based on nanoparticle labels has been developed for the detection of protein biomarker-Macrophage chemoattractant protein 1.The approach is based on a new biosensing principle of the protein biomarker-induced formation of nanoparticles [...]

Layer by Layer Fabrication of an Amperometric Nanocomposite Biosensor for Sulfite

Adeloju S.B., Ohanessian A., Water and Sensor Research Group, AU

This paper will present the results of a layer by layer strategy that we have developed for the fabrication of a polypyrrole nanocomposite amperometric biosensor for sulfite. The use of this strategy to fabricate bilayer [...]

Detection of Small Molecule-Protein Binding with Amorphous Silicon Nanostructures

Lund J., Mehta R., Parviz B., University of Washington, US

We present the fabrication and characterization of a nano-scale sensor made of amorphous silicon (a-Si) for electronic detection of small molecule –protein binding. The main component of the detector is a nano-scale a-Si semicircle with [...]

Using Surface Plasmon Propagation through Nanostructures for Chemical and Biological Sensing

Benahmed A., Ho C-M., UCLA, US

By taking advantage of the properties of the propagation of surface plasmon waves through nanostructures, we developed a new chemical and biological sensor. Compared to traditional Surface Plasmon Resonance (SPR) sensing, our sensor does not [...]

Integrated Techniques for Transmembrane Protein Sensing

Wilk S.J., Petrossian L., Goryll M., Thornton T.J., Goodnick S.M., Tang J.M., Eisenberg R.S., Arizona State University, US

We present a method for the microfabrication of apertures in a silicon substrate using well-known cleanroom technologies and a novel approach using phase sensitive detection to measure single channels of transmembrane proteins. These proteins are [...]

Multi-plex biomolecular detection using Bio-nanotransduction

Branen J.R., University of Idaho, US

Bio-nanotransduction is a biological detection scheme that is based on biological recognition (Bio) and the production of biological nano-signals which allows the change of recognition event into universal signal molecules (nanotransduction). A single sample can [...]

Detection of Biological Species by Surface Enhanced Raman Scattering

Sengupta A., Volny M., Wilson C.B., Turecek F., Davis E.J., University of Washington, US

The rationale behind this work is to explore the application of surface-enhanced Raman scattering (SERS) to detect and identify biological species, especially some common pathogens that are involved in food poisoning and water contamination. SERS [...]

Future of Semiconductor Based Thermal Neutron Detectors

Nikolic R.J., Cheung C-L, Reinhardt C.E., Wang T.F., Lawrence Livermore National Lab., US

Thermal neutron detectors have seen only incremental improvements over the last decades. In this paper we overview the current technology of choice for thermal neutron detection – 3He tubes, which suffer from, moderate to poor [...]