Topic: Chemical, Physical & Bio-Sensors
Glucose Sensors Based on Glucose Oxidase Immobilized in Polypyrrole-Polyacrylamide Microparticles
Soluble, polypyrrole has been synthesized by the incorporation of the sulphonate dopant anion which renders the polymer soluble in water. The soluble polypyrrole was incorporated in the aqueous phase of a W/O concentrated emulsion, together [...]
Behavior of Living Human Neural Networks on Microelectrode Array Support
Researchers of the Department of Information Technologies of the University of Milano and of the Stem Cells Research Institute of the DIBIT-S. Raffaele Milano are experimenting the growth of human neural networks of stem cells [...]
Bio-Impedance Sensing Device (BISD) for Detection of Human CD4+ Cells
Mishra N.N., Retterrer S., Zieziulewicz T.J., Isaacson M., Szarowski D., Mousseau D.E., Lawrence D.A., Turner J.N., New York City Department of Health, US
The aim of this work is to develop a small on-chip bio-impedance sensing device (BISD) to rapidly detect and quantify cells with a specific phenotype in a heterogenous population of cells (e.g., human CD4+ cells [...]
Potentiometric Biosensors Based on Silicon and Porous Silicon
Basu I., Subramanian R.V., Mathew A., Chadha A., Bhattacharya E., Indian Institute of Technology Madras, IN
Detection and estimation of Triglycerides and Urea are clinically important. We report fabrication of potentiometric biosensors based on silicon and porous silicon and estimation of triglycerides and urea based on enzymatic reactions. The sensor is [...]
Micro-Patterning of Ionic Reservoirs within a Double Bilayer Lipid Membrane to Fabricate a 2D Array of Ion-Channel Switch Based Electrochemical Biosensors
Sansiñena J.M., Yee C.K., Sapuri A., Swanson B.I., Redondo A., Parikh A.N., Los Alamos National Laboratory, US
We present a simple approach for the design of ionic reservoir arrays within a double phospholipid bilayer to ultimately develop a 2D array of ion-channel switch based electrochemical biosensors. As a first step, a primary [...]
Optical Detection of Integrin AvB3 Using a Nanostructured Lipid Bilayer Membrane Biosensor
An ultra-sensitive optical bionanosensor platform for integrin avb3 loaded human umbilical vein endothelial cells (HUVECs) was fabricated. The bionanosensor design involved the incorporation of an RGD (arginine-glycineaspartate) containing peptide conjugated BODIPY lipid soluble dye (donor) [...]
Glucometers to Detect for Heart Attack
Acute Myocardial Infarction (AMI), commonly referred to as a heart attack, is a disorder in which damage to an area of heart muscle occurs because of an inadequate supply of oxygen to that area leading [...]
A Microfluidic System with Nonenzymatic Glucose Sensor
In this paper, we report an amperometric-type enzymeless glucose sensor system based on nanoporous platinum (Pt) and platinum/platinum oxide (Pt/PtO) reference electrode, which are integrated with microfluidic chip. Glucose sensor employing no enzyme implies a [...]
A Disposable Glucose Biosensor Based on Diffusional Mediator Dispersed in Nanoparticulate Membrane on Screen-Printed Carbon Electrode
Gao Z., Xie F., Shariff M., Arshad M., Ying J.Y., Institute of Bioengineering and Nanotechnology, SG
In this paper, we described a disposable glucose biosensor based on co-dispersion of a diffusional polymeric mediator and glucose oxidase (GOX) in nanoparticulate membrane on screen-printed carbon electrode. The biosensor exhibited classical features of a [...]