Page 7 - STM - Optical sensors for life science applications

OPTICAL SENSORS for life science applications

Applications in microfluidic channels

and capillaries

Just due to the given dimensions, detection of transpa- Application example: Application example:
rent liquids in micro-channels or capillaries is an opti- lab-on-a-chip detection of micro-bubbles
cal challenge. The slight differences in the refraction in- in capillary hoses
dices of the substances involved make optical detection
a complex task. u The TSL microbubble sensor from STM illuminates
the entire interior of the hose with its precision optics,
u Due to their minimal installation size and precision op- so uniformly that even microscopically small bubbles
tics, the miniature optical sensors in the MICROmote that are clearly smaller than the inside diameter can
®
line from STM are ideally suited for these challenging be reliably detected.
applications.

u The light beams of the sensors in the “JJ” line from
STM can be precisely directed to capillaries or micro-
fluidic structures. By using a special wavelength for
which water has an increased absorption characteri-
stic a reliable signal arises even with minimal channel
size.
u We will be happy to make our entire application know-
how available to you to support your search for the
optimal solution.

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For more information please refer to www.stmsensors.de