Biomedical sensors

Polarizable vs. Non-Polarizable Electrodes

We may categorize electrodes into two possible types albeit theoretically: those that are perfectly polarizable and those that are perfectly…

5 months ago

Principle for Measurement of Partial Pressure of Carbon Dioxide

The electrodes used for measurement of partial pressure of CO2 in blood are based on measuring the pH as demonstrated…

8 months ago

The Principle of Immunoassay Biosensor

The principle of immunoassay sensor operation is based on the observation of ligand-binding reaction products between a target analyte and…

9 months ago

Basic Features of Intravascular Fiber Optic Blood Gas Sensor

Intra-arterial blood gas sensors usually use a single or double fiber configuration. Typically, the matrix containing the indicator is attached…

9 months ago

Commonly used EEG Electrodes

The most commonly employed electrodes for recording electroencephalographic signals from the brain (EEG) are cup electrodes and subdermal needle electrodes.…

11 months ago

The Principles of Microbial Biosensors

Introduction The underlying basis of a microbial biosensor is the close proximity between an immobilized microorganism that serves as a…

11 months ago

The Operation of Fiber-optic Based Blood Gas Sensors

To perform in vivo measurements and to steadfastly analyze blood gases, a small, stable, accurate and bio-compatible sensor is needed…

1 year ago

The Principle of Surface Plasmon Resonance Sensors for Detection of Antibody & Antigen Interactions

When monochromatic polarized light for instance, from a laser source impinges on a transparent medium having a conducting metallized surface…

1 year ago

The Principle of Temporal Artery Thermometer

This is a non-invasive scanning thermometer for measuring core body temperature. The measurement is based on scanning the area above…

1 year ago

Basic Features of Enzyme Based Biosensors

Enzymes are the commonly used biological sensing element in the fabrication of various biosensors. Enzymes have unique properties and ability…

1 year ago