摘要:
Disclosed is a method for measuring properties of particles that move through a fluidic microsystem, the particles being suspended in a liquid. According to the inventive method, a first parameter of a specific particle is first measured at a first test station (11). A second parameter of the particle is then measured at an interval from the first measurement at a second test station (12) which is spatially separated from the first test station (11), and the first and second parameters are jointly evaluated in a correlated manner, the first and second parameters being characteristic of different properties of the tested particle. The evaluation comprises a comparison of the first and second parameters with predetermined expected values. Another measurement is taken or manipulations are performed on the tested particle according to the result of the comparison. Also disclosed is a fluidic microsystem that is designed for implementing the inventive method.
摘要:
The invention relates to an method of analysing biological particles, in particular to be conducted in a cell sorter, with following steps: placing the particles to be analysed into a carrier flow, carrying out a first analysis of the particles moving with the carrier flow, selecting at least one particle in dependence on the result of the first analysis, carrying out a second analysis of the selected particle in a decelerated condition. Furthermore, the invention comprises a corresponding analysis device.
摘要:
A coupling device (100), particularly for liquid-tight coupling of at least one liquid line (10) to a fluidic system (20), is described, which comprises: at least one sealing device (30), which is implemented to receive an end region (11) of the liquid line (10) and has a first sealing surface (31) for placement on an external surface (22) of the fluidic system in such a way that the end of the liquid line (10) is laterally enclosed by the first sealing surface (31) and points toward an opening (23) in the external surface (22), and a clamping device (40), using which the sealing device (30) may be pressed against the fluidic system (20), so that the first sealing surface (31) produces a liquid-tight connection with the external surface (22).
摘要:
The invention relates to a docking device (100) for retaining a fluidic microsystem (10), comprising a base plate (20) and a retaining frame (30), movable relative to the base plate (20) and used to fasten the microsystem (10) on the base plate (20). The retaining frame (30) is adapted to detachably receive the microsystem (10) and can be detached from the base plate (20) together with the microsystem (10). The device is also provided with a clamping device (40) with which the microsystem (10) on the retaining frame (30) can be pushed against the base plate (20). The invention also relates to methods for operating a fluidic microsystem (10) using said docking device (100).
摘要:
The invention relates to a sample depositing device, particularly for a cell sorter, comprising a sample supply (38, 39) for supplying samples to be deposited and comprising a sample storage element (36) for storing the samples. Said sample storage element (36) has a number of sample containers for storing the samples separately. The invention provides that the sample storage element (36) is mounted in a displaceable manner in order to select a sample container whereas the sample supply (38, 39) is stationary.
摘要:
The invention relates to a particle injector for introducing particles into a carrier flow of a microfluidic system, especially for injecting biological cells into the carrier flow of a cell sorter. The particle injector includes an inlet for receiving the carrier flow, an outlet for discharging the carrier flow including the introduced particles, a carrier flow channel which connects the inlet to the outlet, and an injection channel flowing into the carrier flow channel for introducing the particles into the carrier flow. The inventive particle injector is characterized in that the carrier flow channel has substantially no dead volume.
摘要:
The invention relates to a particle injector for introducing particles into a carrier flow of a microfluidic system, especially for injecting biological cells into the carrier flow of a cell sorter. The particle injector includes an inlet for receiving the carrier flow, an outlet for discharging the carrier flow including the introduced particles, a carrier flow channel which connects the inlet to the outlet, and an injection channel flowing into the carrier flow channel for introducing the particles into the carrier flow. The inventive particle injector is characterized in that the carrier flow channel has substantially no dead volume.
摘要:
A coupling device (100), particularly for liquid-tight coupling of at least one liquid line (10) to a fluidic system (20), is described, which comprises: at least one sealing device (30), which is implemented to receive an end region (11) of the liquid line (10) and has a first sealing surface (31) for placement on an external surface (22) of the fluidic system in such a way that the end of the liquid line (10) is laterally enclosed by the first sealing surface (31) and points toward an opening (23) in the external surface (22), and a clamping device (40), using which the sealing device (30) may be pressed against the fluidic system (20), so that the first sealing surface (31) produces a liquid-tight connection with the external surface (22).
摘要:
In a method for correcting for the size and/or shape of a measuring volume (18)in a chemical and/or biological sample (14), especially in fluorescence spectroscopy, a measuring volume (18) located within the sample (14) is imaged to a detector means (44), using observing optics (32). The imaging is effected through a sample carrier w all (16) of a sample carrier (12) containing the sample (14). In the next step, the thickness of the sample carrier wall (16) is automatically determined. Thereafter, at least one lens (28) is shifted automatically along an optical axis of the observing optics (32) to correct for the size and/or shape of the measuring volume (18) as a function of the thickness of the sample carrier wall (16).
摘要:
According to the invention, the driving stability of a utility vehicle combination, which is comprised of a towing vehicle and of a towed vehicle, is monitored (3-5) when the towed vehicle is braked. In the event of an unstable driving state, the vehicle combination is stabilized by effecting a cyclic or clocked reduction of the towed vehicle brake pressure (6).