Related Experiment Video
Updated: Jun 3, 2026

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
Published on: February 16, 2018
The characteristics of novel low-cost sensors for volatile biomarker detection
B P J de Lacy Costello1, R J Ewen, N M Ratcliffe
1Centre for Research in Analytical, Material and Sensor Sciences, University of the West of England, Coldharbour Lane, Frenchay, Bristol, BS16 1QY, UK.
Abstract:
For breath analyses, volatile detectors capable of sensing extremely low concentrations in the sub-ppm range are required. Novel room temperature sensors were fabricated based on ultraviolet light activation of nanoparticulate metal oxide surfaces using light emitting diodes. These sensors gave reversible electrical resistance changes in the low ppm/ppb range to volatile organic compounds found in breath, including acetone, acetaldehyde, pentane and ethanol.
More Related Videos
13:42Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
Published on: September 19, 2017
09:23Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum
Published on: December 13, 2017
Related Concept Videos
Microbial Biosensors
High-Performance Liquid Chromatography: Types of Detectors
Gas Chromatography: Overview of Detectors
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...