Enhancing classification capabilities of computer screen photo-assisted fluorescence fingerprinting

• The separation of emission from transmitted light for the fingerprinting of fluorescent substances using a computer screen photo-assisted technique (CSPT) is demonstrated. CSPT is a technique for optical evaluation using a simple cell with just a standard computer set and a web camera as instrumentation. It has been demonstrated to be a versatile system for colorimetric and fluorescent fingerprinting. Here the omnidirectional property of fluorescent emission is utilized to separate it from the background, using a simple optical arrangement compatible with CSPT purposes. This enhances the classification capabilities and makes classification at sub-μM concentrations possible.

Nyckelord

Computer screen photo-assisted technique; Fluorescence; Spectral fingerprinting; Bioassays; Home tests

TECHNOLOGY

TEKNIKVETENSKAP

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