Biomedical subjects

C Malins

Publications and source records attributed to C Malins.

2 recordsLinked to original sources

PubMed2001

Embossed polymer leaky waveguide devices for spectroscopic analysis.

A combination of UV embossing, hot embossing and laminating techniques have been exploited during the fabrication of grating-coupled waveguiding devices in which the flow channel materials and geometry are designed for the effective support of light condenser modes through a sample solution. Used in conjunction with LED sources, these devices have been employed as optical platforms to obtain fluorescence emission and molecular absorption spectra in aqueous media for microTAS (micro total analytical system) applications.

Journal Article↗

PubMed1999

Personal ammonia sensor for industrial environments.

The realisation of an opto-chemical ammonia sensor suitable for personal monitoring tasks is described, comprising a cyanine dye immobilised in a microporous glass thin film. The fabrication of sensor platforms incorporating embossed grating couplers provides a compact optical design with effective waveguiding characteristics, resulting in reversible ammonia sensitivity in the 5-100 ppm range in under 2 min. Cross-sensitivity of sensor response with water and other potential interferents is considered.

Air Pollution, Indoor↗