Papers – Page 712 – TechConnect Briefs

A RC-based biosystem for measuring anti-oxidizing power

Tibuzzi A., Pezzotti G., Rea G., Bianconi D., Giardi M.T., Biosensor S.r.l., IT

The goal of this work is the development of specific and sensitive biosensors for the measure of anti-oxidizing agents power, by exploiting the property of Reaction Centres complexes (RCs) to specifically recognize oxidizing chemicals (e.g. [...]

Simultaneous Detection of Salmonella typhimurium and Bacillus anthracis Spores Using Phage-Based Magnetoelastic Biosensors

Huang S., Yang H., Johnson M., Chen I., Petrenko V.A., Chin B.A., Auburn University, US

Deliberate contamination of the food supply has become a concern, Salmonella typhimurium and Bacillus anthracis spores being primary pathogens of interest. The objective of this research was to investigate simultaneous detection of these two biological [...]

Stable Self-Assembled Monolayers for sensitive biosensor interfaces

Jans H., Jans K., Jans H., Jans K., Bonroy K., Frederix F., Reekmans G., Maes G., Borghs G., IMEC, BE

One of the most important requirements for making advanced biosensors and biochips is the attachment of biological receptors onto a solid support. For this reason, it is important to construct a stable and well-characterized interface [...]

Biosensor for heavy metals using hydrothermally grown ZnO nanorod/nanotube and metal-binding peptides

Jia W., Reitz E.T., Lei Y., University of Connecticut, US

Certain heavy metals can pose potential health risks when consumed by humans due to their high toxicity. Specifically, the heavy metals mercury, lead and cadmium can be released into the environment through industrial use and [...]

nanometric thinfilm sensor

Bauer M., Putz E.M., Pittner F., University of Vienna, AT

We want to present an optical thin film sensor chip able to detect the decay of food through a specific color change. The design of the chip relates to a phenomenon, the so called “anomalous [...]

Specific and Non-specific adsorption of Proteins on Solid Interfaces

Rabe M., Zimmermann J., Verdes D., Seeger S., University of Zurich, CH

We present a comprehensive mechanistic study of the non-specific adsorption of β-Lactoglobulin on a solid interface by comparing the adsorption kinetics of this protein to theoretical predictions of reported models. Important experimental observations were increasing [...]

Development of micro-lateral flow strips compatible with micro-volume samples for immunochemical assays

Sharma N.S., Lukyanov A., Bardell R.L., Shen M., Weigl B.H., MicroPlumbers Microsciences, LLC, US

The benefits of the lateral flow strip immunochromatographic test format are well known. However, currently available lateral flow strip assays are not compatible with sub-microliter sample volumes. The authors believe that assays compatible with micro-volume [...]

Label-Free Protein Nano-Biosensor Using Top-Down Fabrication

Ah C.S., Ahn C-G, Kim A., Yu H.Y., Ahn C-G, Yang J.H., Baek I-B, Park C.W., Jun M.S., Lee S.J., Electronics and Telecommunications Research Institute (ETRI), KR

A nanosensor of n-type Si field-effect transistor (FET) via “top-down method” was employed to monitor PSA with great selectivity and high sensitivity up to 10 pg/mL. When a biomaterial, negatively charged PSA, is introduced through [...]

Electronic DNA detection on semiconductor surfaces

Han Y., Tan E., Candebat D., Bandyopadhyay K., Niemz A., Keck Graduation Institute, US

Electronic biosensors offer a viable alternative to optical biosensors for the rapid, specific, and sensitive detection of DNA. We are utilizing an electrolyte-oxide-semiconductor (EOS) biosensor system on a SiO2/Si surface for impedimetric detection of DNA. [...]

Synthesis of a nano electro-magnetic polymer and its application in a DCT biosensor

Pal S., Hummel E.B., Alocilja E.C., Michigan State University, US

This experimental study was focused on the development of a nanomagnetic conductive polymer and its application in a direct-charge transfer biosensor (Figure1) for the detection of Bacillus species. A polyaniline-γFe2O3 nanocomposite transducer was first synthesized [...]