ELECTROCHROMIC DEVICE
    3.
    发明公开

    公开(公告)号:US20240094589A1

    公开(公告)日:2024-03-21

    申请号:US18043975

    申请日:2021-09-07

    Abstract: The invention relates to an electrochromic device (50). According to the invention, it comprises: —at least one substrate (51); —a first electrode (53) comprising a first opening (52) and a second electrode (54) comprising a second opening (55); —the two electrodes being positioned so that the two openings are opposite each other; —a layer (56) of electrochromic material adapted to be arranged relative to the first opening (52) of the first electrode so as to form at least one electrical contact zone between the layer of electrochromic material and the first electrode, said layer of electrochromic material and said first electrode thus together forming a working electrode and the second electrode forming a counter-electrode; —a layer (57) of electrolyte sandwiched between the working electrode and the counter-electrode; —an electrical power supply means configured to apply an electric voltage to the two electrodes.

    BIOCOMPATIBLE OILY FERROFLUID AND PREPARATION PROCESS

    公开(公告)号:US20230005647A1

    公开(公告)日:2023-01-05

    申请号:US17778941

    申请日:2020-11-26

    Abstract: The invention concerns a biocompatible oily ferrofluid comprising iron-oxide based magnetic nanoparticles and an oil phase comprising at least one fatty acid ester, characterized in that said magnetic nanoparticles are surface functionalized by molecules of one or more phospholipids, and in particular a biocompatible oily ferrofluid comprising iron-oxide based magnetic nanoparticles and an oil phase comprising at least one fatty acid ester, said iron-oxide based magnetic nanoparticles forming a colloidal dispersion in said oil phase from a temperature belonging to the range from 20 to 80° C., characterized in that said magnetic nanoparticles are surface functionalized by molecules of one or more phospholipids which do not completely cover the surface of the iron-oxide based magnetic nanoparticles, which in particular ensure a coverage rate of the surface of the iron-oxide based magnetic nanoparticles such that the fatty acid ester(s) present in the oil phase have access to the surface of the iron-oxide based magnetic nanoparticles. The invention also concerns the process for preparing such a biocompatible oily ferrofluid and its use as a contrast agent for magnetic resonance imaging or in the context of a cancer treatment by hyperthermia. Finally, the invention concerns a nanoemulsion comprising such a biocompatible oily ferrofluid.

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