Chemical, Physical & Bio-Sensors – Page 9

Label-Free, Electrical Detection of the SARS Virus N-Protein with Nanowire Biosensors Utilizing Antibody Mimics as Capture Probes

Chang H.K., Ishikawa F., Chiang P.C., Zhou C., University of Southern California, US

In this report, we introduce evolved AMPs as a new class of capture agents for nanowire/nanotube biosensors, and demonstrate selective detection of a protein related to severe acute respiratory syndrome (SARS), using devices based on [...]

Towards an asynchronous magnetic bead rotation method for immunological assays

Hecht A., Kinnunen P., McNaughton B., Kopelman R., University of Michigan, US

Much attention has been focused on using magnetic particles for biodetection applications on chip. Most of these applications involve using the magnetic particles either for translational motion in a magnetic field, or as labels for [...]

SiCN nanomechanical resonators for array-based biosensor applications

Guthy C., Singh A., Tanha J., Evoy S., University of Alberta, CA

Rapid, sensitive and inexpensive analysis of biological molecules is of great importance to many biomedical applications, such as disease detection and monitoring, drug discovery, detection of pathogens, etc. Mechanical resonators have been demonstrated as highly [...]

Label-free, Fluorescenece Detection of DNA Nanoparticle Scaffolds

Kell A.J., Tan S., Charlebois I., Boissinot M., Simard B., National Research Council, CA

We have developed a nanoparticle-based DNA biosensor that can detect unlabelled ssDNA with good sensitivity (picomolar concentrations). The biosensor makes use of the optical changes of a cationic polymer interacting with ssDNA versus that of [...]

Bio Sensors, Diagnostics & Imaging

Magnetic Nano Particles for Diagnostics

Nguyen K.C., Pham V.H., Do S.T., Tieu D.T., SAIGON HI TECH PARK, VN

Magnetic Nano Particles (MNP) for diagnostics had been fabricated by coating the particle ‘s surface with specific coupling agents . This agent allows the pulling the virus containing DNA and/or RNA molecules off the patient [...]

SERS Gold Nanoparticles for Cancer Surface Marker Detection

Nguyen C.T., Nguyen J., Nguyen C.T., Nguyen J., Rutledge S., Wang C., Walker G.C., University of Toronto, CA

Surface Enhanced Raman Scattering (SERS) gold nanoparticles may provide novel optical tags for cellular analysis. Currently, cell markers are mostly assessed by fluorescence labeling using flow cytometry. However, fluorescence dyes are usually limited to 4-5 [...]

Topic: Chemical, Physical & Bio-Sensors