Abstract: The present invention concerns an interferometer comprising: an optical body adapted in operation to mount a measurement area comprising a film which is capable of acting as a two dimensional environment for surface plasmons and an adjacent reference area; an optical beam generation means for irradiating the reference and measurement areas with radiation capable of generating surface plasmon resonance; optical means for combining radiation reflected from the reference and measurement areas, and pixelated detection means for generating data representing two dimensional images of the combined radiation beams.

Abstract: The present invention concerns an interferometer comprising: an optical body adapted in operation to mount a measurement area comprising a film which is capable of acting as a two dimensional environment for surface plasmons and an adjacent reference area; an optical beam generation means for irradiating the reference and measurement areas with radiation capable of generating surface plasmon resonance; optical means for combining radiation reflected from the reference and measurement areas, and pixelated detection means for generating data representing two dimensional images of the combined radiation beams.

Abstract: An electrical interconnection is provided between a patient and physiological sensing or monitoring equipment. A permanent electrode is formed with a thin flexible housing which encases an electrical connector such as a pellet or nodule so that a portion of that connector is externally exposed on one surface. A disposable pad formed of a thin flexible base frame has a central bore and a double-faced adhesive disc on one side for attachment of the electrode surface containing the connector and concurrently retaining a conductive gel within the disposable pad for electrical communication with the electrode conductor. The adhesive on the opposite surface of the disposable pad is adapted to secure the pad to a selected area of the skin of the patient.