Abstract: The invention is related to an optode for determining chemical parameters of a sample wherein the optode consists of a polymer matrix consisting of sulfonated polyether ether ketone (SPEEK) in which a sensor dye is immobilized or more than one sensor dye is immobilized, wherein at least one of the immobilized sensor dyes is pH-sensitive. In addition, the present invention also concerns a method for determining the pH of a sample in which the invention-related optode is used.

Abstract: The invention relates to a detection device for in vivo and/or in vitro enrichment of sample material, including a functional surface equipped with detection receptors, in which the functional surface is located directly or indirectly on a measuring structure that includes optically conductive material for optical measurement of target molecules enriched on the detection receptors.

Abstract: The invention is related to an optode for determining chemical parameters of a sample wherein the optode consists of a polymer matrix consisting of sulfonated polyether ether ketone (SPEEK) in which a sensor dye is immobilized or more than one sensor dye is immobilized, wherein at least one of the immobilized sensor dyes is pH-sensitive. In addition, the present invention also concerns a method for determining the pH of a sample in which the invention-related optode is used.

Abstract: The invention relates to a measuring arrangement for an optical spectrometer, in particular a photon density wave spectrometer, having a measuring chamber, which can be loaded with a sample to be measured, and a coupling-in/coupling-out device which is configured to receive excitation light from a light source and couple it into the sample to be measured in the measuring chamber and to receive measuring light formed in the sample to be measured on account of the excitation light which has been coupled in and to emit said measuring light to a detection device, wherein the coupling-in/coupling-out device has an optical switching device and a plurality of light guide elements which couple to the latter, have a respective optical waveguide and can be connected according to at least one selectable measuring configuration using the optical switching device in order to couple in the excitation light and receive the measuring light according to the at least one selectable measuring configuration, and wherein outputs

Abstract: The invention concerns a method for detecting an analyte in a sample by multiplexing FRET (Förster Resonance Energy Transfer) analysis, the method comprising the following steps: providing a sample containing an energy transfer donor, several spectrally different quantum dot species, and an analyte, wherein the analyte is configured to mediate an energy transfer within a first energy transfer donor-acceptor pair provided by the energy transfer donor and a first quantum dot specie, the energy transfer donor is configured to act as energy transfer donor in the first energy transfer donor-acceptor pair, and the first quantum dot specie is configured to act as energy transfer acceptor in the first energy transfer donor-acceptor pair, irradiating excitation light from an excitation light source to the sample, in the first energy transfer donor-acceptor pair, transferring excitation energy from the energy transfer donor excited by the excitation light to the first quantum dot specie, the energy transfer being media