Device for imaging electrical activity of a sample, imaging system, method for analysing a sample and manufacturing method therefor
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsOlivier Haon, Benoit Racine
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Abstract
A device for imaging electrical activity of a sample, includes a polymer film in which liquid crystal droplets are dispersed, referred to as the PDLC film, a transparent fluidic component in which at least one cavity adapted to contain the sample is arranged, a transparent reference electrode, the PDLC film being arranged between the at least one cavity and the reference electrode and configured to convert an electric field created in a region of the PDLC film in response to an electric potential generated by the sample into a variation in transparency of the region of the PDLC film.
Claims19
A device for imaging electrical activity of a sample, comprising:
- a PDLC film of polymer in which droplets of liquid crystal are dispersed,
- a transparent fluidic component wherein at least one cavity adapted to contain the sample is arranged,
- a transparent reference electrode,
- the PDLC film being arranged between said at least one cavity and the reference electrode and configured to convert an electric field created in a region of the PDLC film in response to an electric potential generated by the sample into a variation in transparency of said region of the PDLC film.
A method for manufacturing a device for imaging electrical activity of a sample, comprising:
- providing a sacrificial substrate,
- manufacturing a PDLC film of polymer in which droplets of liquid crystal are dispersed, the PDLC film being configured to convert an electric field created in a region of the PDLC film in response to an electric potential generated by the sample into a variation in transparency of said region of the PDLC film,
- manufacturing, on a first face of the PDLC film opposite to the sacrificial substrate, a transparent reference electrode,
- removing the sacrificial substrate from the PDLC film, so as to leave a second face of the PDLC film opposite to the first face free,
- providing a transparent fluidic component in which at least one cavity adapted to contain the sample is arranged, and
- assembling the fluidic component to the second face of the PDLC film, so that the PDLC film is arranged between said at least one cavity of the fluidic component and the reference electrode.
A method for manufacturing a device for imaging electrical activity of a sample, comprising:
- providing a transparent substrate,
- manufacturing a transparent reference electrode on the transparent substrate,
- manufacturing, on the reference electrode, a PDLC film of polymer in which droplets of liquid crystal are dispersed, the PDLC film being configured to convert an electric field created in a region of the PDLC film in response to an electric potential generated by the sample into a variation in transparency of said region of the PDLC film,
- providing a transparent fluidic component in which at least one cavity adapted to contain the sample is arranged,
- assembling the fluidic component on the face of the PDLC film opposite to the reference electrode, so that the PDLC film is arranged between said at least one cavity of the fluidic component and the reference electrode.
Dependencies are inferred from the claim text.