PHOTOELECTROCHEMICAL BIOSENSOR AND METHODS OF USE THEREOF

    公开(公告)号:US20220065806A1

    公开(公告)日:2022-03-03

    申请号:US17466354

    申请日:2021-09-03

    Abstract: This disclosure relates to a biosensor for detecting a target analyte in a sample comprising a first and second photoelectrode each comprising conductive substrate and photoactive material, a first and second capture probe functionalized on the first and second photoelectrode, respectively, and optionally one or more reporter moieties comprising a detectable label, wherein the first and second capture probe each, independently, provides a distance between the detectable label and the photoactive material in the presence of the target analyte, wherein intensity of detection signal dictated by the distance is generated from the first and second photoelectrode by transfer of electrons between the detectable label and the photoactive material, wherein a higher, or higher increase than in absence of sample, in the intensity of the detection signal from the first as compared to the second photoelectrode in the presence of the sample, is indicative of the presence of the target analyte.

    Textured electrodes with enhanced electrochemical sensitivity

    公开(公告)号:US11181500B2

    公开(公告)日:2021-11-23

    申请号:US16097429

    申请日:2017-04-28

    Abstract: An all-solution electrode fabrication process is provided. The process comprises the steps of: i) preparing and activating a shrinkable polymer substrate for deposition of a a) conductive film; ii) modifying the substrate to incorporate a linker; iii) immobilizing particles of a conductive material on the linkers of the substrate to form a conductive film on the substrate; and vi) heating the modified substrate to a temperature sufficient to cause contraction of the polymer substrate and to result in micro- and/or nano-texturing in the conductive film. The process advantageously yields a novel multi-scale electrode device comprising a polymer substrate; and a textured electro-conductive film linked to the substrate.

    Devices for manipulating magnetic particles, and methods of fabricating the devices and the use thereof

    公开(公告)号:US10478827B2

    公开(公告)日:2019-11-19

    申请号:US15060835

    申请日:2016-03-04

    Abstract: A device for manipulating magnetic particles, and the method of fabricating and use thereof. The device includes a substrate; a conductive element formed onto the substrate in a pattern shaped to enhance a magnetic field generated in response to an applied current; an insulating layer to isolate the conductive element from a magnetic element; and a magnetic element formed onto the insulating layer to enhance a magnetic force resulting from the magnetic field generated by the conductive element. The magnetic element can be shaped similarly to the conductive element, and edges of the magnetic element are substantially aligned with edges of the conductive element. During fabrication, the substrate and the conductive element can be heated to cause the substrate to shrink thereby resulting in a wrinkled structure at the conductive element. The device can be used to manipulate the magnetic particles within a biological sample, such as cells and/or biomolecules.

    Textured Electrodes with Enhanced Electrochemical Sensitivity

    公开(公告)号:US20190154622A1

    公开(公告)日:2019-05-23

    申请号:US16097429

    申请日:2017-04-28

    Abstract: An all-solution electrode fabrication process is provided, The process comprises the steps of: i) preparing and activating a shrinkable polymer substrate for deposition of a a) conductive film; ii) modifying the substrate to incorporate a linker; iii) immobilizing particles of a conductive material on the linkers of the substrate to form a conductive film on the substrate; and vi) heating the modified substrate to a temperature sufficient to cause contraction of the polymer substrate and to result in micro- and/or nano-texturing in the conductive film. The process advantageously yields a novel multi-scale electrode device comprising a polymer substrate; and a textured electro-conductive film linked to the substrate.

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