biosensor – Page 4 – TechConnect Briefs

Biomedical Applications of Modified Carbon Glassy Electrode Sensor with Nanoparticles and Dendrimers

Leung S.W., Wang Y., Gu H., Lai J.C.K., Idaho State University, US

In our previous reports, we studied the development of biosensor platform that are capable of measuring biometabolites and environmental sensitive species, such as peroxide and nitrate/nitrate, to concentration in the order of ppb (parts per [...]

Fabrication of plastic optical label-free biosensor and Immunodetection of cardiac marker in human serum

Kim B-K., Kim K.H., Hong J.C., Ko H.S., Kim B-K., Kim K.H., Huh C., Sung G.Y., ETRI, KR

We have studied for lab-on-a-chip (LOC) based bio-devices and fabricated plastic optical label-free biosensor device. Optical resonant reflection biosensor (ORRB) is a kind of label-free sensor, containing nanoscale resonate grating patterns1 and whole blood filter. [...]

Functionalized Nanopipette: towards single cell immunoassay

Actis P., Jejelowo O., Pourmand N., UC Santa Cruz, US

Nanopipette technology is capable of detecting and functional analyzing bio-molecules based on difference on their size, shape and electrical charge. This unique label-free biosensor is inexpensive, easy to fabricate and versatile. Nanopipette functionalized with antibodies [...]

A comparative study on sensitivity for biomolecular detection between gold nanoparticles coated and uncoated gold thin film using spectroscopic ellipsometry

Moirangthem R.S., Chang Y-C, Hsu S.-H., Wei P.-K., Research Center for Applied Sciences, TW

We investigate the plasmonic responses of gold nanoparticles (AuNP) coated and uncoated on 30nm gold thin film with aqueous medium having different refractive index using SPR ellipsometry. (See Figure 1) The sensitivities in both cases [...]

Iron oxide nanoparticles reinforced self-assembled monolayers of cystamine for use in enzymatic biosensor development

Newati S.J., Singh V.M., Sachdeva S., Khan R.A., Manav Rachna International University (MRIU), IN

The immobilization of biomolecules on solid support is crucial component in fabrication of biosensors. The self assembled monolayers (SAM) can be used for fabrication of the biosensor-component that allows chemically reactive functional group manipulations for [...]

Photosensitive Biosensor Array Chips not having the Addressing Circuit

Ahn C-G, Ah C.S., Ahn C-G, Kim A., Kim T., Park C.W., Yang J.H., Kim A., Kim T., Sung G.Y., Electronics and Telecommunications Research Institute, KR

This paper presents photosensitive biosensor array chips with the simple photodiode array having the optical input signal and the electrical output signal, which detects the photocurrent change caused by a reaction between probe molecules and [...]

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 [...]

Finite Element Modeling and Analysis of CMOS-SAW Sensors

Tigli O., Zaghloul M.E., Washington State University Vancouver, US

Finite element (FE) modeling and performance analysis of Surface Acoustic Wave (SAW) devices that are developed in CMOS (Complementary Metal Oxide Semiconductor) technology are presented. CMOS-SAW devices were designed, fabricated and characterized as a biosensor [...]

An Amplification Strategy to Label Free Opiate Drug Detection using Liquid-Gated Carbon Nanotubes Transistor

Tey J.N., Wijaya I.P.M., Wei J., Rodriguez I., Maisalkar S.G., Singapore Institute of Manufacturing Technology, SG

A label free, real time detection of opiate drug using the CNT liquid gated transistor is reported in this study. The device was fabricated using a facile method consists of two-step stamping and lamination process, [...]

Performance Comparisons of Nanoparticle Modified Sensor Electrodes for the Detection of Nitrite and Peroxide

Lai J.C.K., Wang Y., Gao W., Gu H., Leung S.W., Idaho State University, US

For the third generation of biosensor that electrode is coupled directly with enzymes, the response time for detection is rapid but stability of the measurements and the coupled enzymes is a concern. In our research [...]