Abstract:
Devices and methods for magnetophoretic analyte selection and concentration are described. Magnetically marked analytes (e.g., cells) may be separated out of a sample dynamically in flux, such that the magnetically marked analytes are present in a highly concentrated manner in a reduced sample volume. The analyte selection may be followed by an analysis.
Abstract:
Devices and methods for magnetic flow measurement are provided. Individual analytes are detected in the through-flow, and a dynamic detection of a changing analyte state is carried out, for example with respect to the analyte size or morphology. For this purpose, the analytes to be detected, such as cells for example, are directly marked in the medium surrounding said analytes with magnetic labels and transported through the flow channel of a measuring device comprising at least two magnetic sensors. A characteristic measurement signal is generated by means of the magnetic sensors that are mutually spaced in the flow direction. The magnetic analyte diameter is calculated using the interval between the measurement deflections, and the analyte state can be evaluated using the magnetic analyte diameter.
Abstract:
A photoactive layer in organic photodiodes includes organic photoactive dyes, including squaraines with donor-substituted aromatic substituents as the electron donor component, used as an alternative to polymer hold conductors for bulk heterojunctions typically found in the organic active layer of organic photodiodes.
Abstract:
A measuring device for magnetic flow cytometry has a microfluidic channel disposed along an enriching route such that a magnetically marked cell sample flowing through the microfluidic channel is aligned to magnetic guide strips, enriched by the magnetic field of a magnet at the floor of the channel, and guided past a sensor. The sensor and the magnetic guide strips are integrated on a semiconductor chip.
Abstract:
Sensor apparatus (1) for determining at least one biochemical function of a fluid (F) with at least one magnetoelastic capillary tube (2) through which the fluid (F) is conveyed, wherein a resonant frequency (fR) of the magnetoelastic capillary tube (2), which depends on a surface loading of the inner wall of the magnetoelastic capillary tube (2) by the fluid (F) conveyed through the tube is able to be read out in a non-contact manner for determining the biochemical function of the fluid (F).
Abstract:
A device dynamically detects particles of a fluid. The device can be miniaturized for detecting and selecting magnetized particles, particularly cells.
Abstract:
The disclosure relates to flow cytometry. A method for precise individual cell detection and cell measurement of cells in the flow is disclosed. A pair of magnetoresistive components are used to produce a characteristic measuring signal profile from which the following information can be obtained: number of measurement deviations, measurement deviation distances, measurement deviation amplitudes, measurement deviation direction and measurement deviation direction sequence. The flow speed and the cell diameter can also be determined. Also, the signal noise ratio can be determined using the measurement deviation amplitude.
Abstract:
Specific labeling of cells enables magnetic cell detection. The cell type to be detected is labeled, magnetic labels being bound to epitopes of a first cell-specific epitope type via antibodies of a first antibody type. Additionally, second/further magnetic labels are bound to epitopes of a second cell-specific epitope type on the cells via antibodies of a second antibody type, or the magnetic labels are bound to the antibodies of the first antibody type via antibodies of another antibody type and the antibodies of the first antibody type are bound to the epitopes of the first cell-specific epitope type on the cells.
Abstract:
Magnetically labeled cells in a flow chamber cytometer are detected by a GMR sensor. The flow chamber includes a cell guiding device having at least one first and one second magnetic or magnetizable flow strip. The flow strips, which serve to guide the flowing cells across the sensor in a target-oriented manner, are mounted at a distance from each other such that a magnetic field BF is produced between them. The GMR sensor is arranged in the region of the magnetic field BF between the flow strips such that the magnetic field BF can be used as the operating magnetic field BGMR of the GMR sensor. In this way, the need for additional magnets for operating the GMR sensor is eliminated.
Abstract:
Monolayers of organic compounds are formed on transparent conductive metal oxide surfaces these are used for example in producing organically based electronic components. By selecting the monolayer, the service life of the devices produced therewith may be improved by orders of magnitude.