Micromechanical photothermal analyser of microfluidic samples.

Faheem Khan Muhammad (Inventor), Silvan Schmid (Inventor), Anja Boisen (Inventor), Seonghwan Kim (Inventor), Thomas Thundat (Inventor)

    Research output: Patent

    198 Downloads (Pure)


    The present invention relates to a micromechanical photothermal analyser of microfluidic samples comprising an oblong micro-channel extending longitudinally from a support element, the micro-channel is made from at least two materials with different thermal expansion coefficients, wherein the materials are arranged relatively to each other so that heating of the micro-channel results in a bending of the micro-channel, the first material has a first thermal expansion coefficient and is made from an light-specific transparent penetrable material so that when exposed to ultraviolet, visible, or infrared light, the specific light radiates into the channel through said light transparent material, the second material has a second thermal expansion coefficient being different from the first thermal expansion coefficient. The micromechanical photothermal analyser also comprises an irradiation source being adapted to controlled radiate ultraviolet, visible, or infrared light towards and through the transparent micro-channel, and a deflection detector being adapted to detect the amount of deflection of the micro-channel. The wavelength-deflection plot provides a spectrum of an analyte inside the oblong microchannel. To characterize the analyte the plot is compared with the standard database of spectroscopy
    Original languageEnglish
    IPCB01L3/00; G01B11/24; G01N21/03; G01N33/543
    Patent numberWO2014206420
    Filing date31/12/2014
    Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Priority date26/06/2014
    Priority numberEP20130173787
    Publication statusPublished - 2014


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