Diagnostics & Bioimaging – Page 22

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 [...]

Infant HIV and Nanotechnology

Goel N., Sharma R., Pt BDS Post Graduate Institute of Medical Sciences, IN

Background: New methods have emerged in detection and monitoring HIV using nanotechnology techniques but HIV in infants got less attention. Purpose: We report here the Human Immunodeficiency virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS) [...]

Real-time single-molecule dynamics observed with a nanoscale transistor

Brousseau L.C., Quantum Logic Devices, US

Direct observation of single molecular reactions and motions are impossible by optical techniques due to diffraction limits. However, ensemble measurements of binding dynamics in biological systems offer limited understanding of individual actors in metabolic and [...]

Fiber Optic Biosensors Detecting System of Laser Processing Micro Channels

Bai Z-C, Qin S-J, Zhang X., Guizhou University, CN

With the development of micromachining technology, smart micro sensors have been a very potential technology. Micro channels products fabricated by micromachining technology have been put into markets in last years, such as inkjet tube of [...]

A 3-dimensional nanobiosensor based on an anodic aluminum oxide template

Wang G.-J., Lin Y.-D., National Chung Hsing University, TW

In this paper, we propose a high sensitive nanobiosensor based on a 3D sensing element that has uniformly deposited gold nanoparticles. The sequential synthesis processes include: preparation of an AAO film; modification of the surface [...]

Characterization and Applications of Modified Gold Electrode Sensor with Nanoparticles

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

In the recent development of biosensor, response time of the sensor is drastically improved by using direct coupling of enzymes onto the surface of electrode. The drawback of the direct coupling of enzymes is denature [...]

Biochip for minimally invasive blood glucose monitoring

Zhang P., Ahmadi M.M., Jullien G.A., University of Calgary, CA

The most common techniques for blood glucose sensing are based on enzymatic glucose oxidation techniques because of being highly sensitive and specific to the glucose. But, the techniques need oxygen environment and the measurement accuracy [...]

Portable FRET Sensing of Proteins, Hormones, and Toxins Using DNA Aptamers and Quantum Dots

Jackson G.W., Strych U., Frank E., Willson R.C., Ballerstadt R., McNichols R.J., BioTex, Inc., US

There is an urgent need to develop methods and devices that make the monitoring of any compound of interest in the public water system more reliable, more sensitive and more economical. We are developing a [...]

CdSe nano-particles coated with thiol-terminated oligo(ethylene oxide)for protein targeting reagent

Ito Y., Tsutsumi H., Yamaguchi University, JP

Fluorescent labeling reagents are used as medical and biochemical research reagents that label specific protein, antigen, antibody, and DNA. However, the chromophoric groups (organic compounds) usually are not stable under long-time ultra violet (UV) excitation. [...]

Application of QCM DNA biosensor to detect a marine derived pathogenic virus VHSV

Hong S-R., Hong S., Hong S-R., Hong S., Kangnung National University, KR

Each year infectious diseases cause substantial economic losses for public and commercial aquaculture ventures. VHS is one of most serious viral diseases caused by VHSV and damaging both fresh and marine fish species. Detecting VHSV [...]