摘要:
A microfluidic device is provided including at least one chamber accessible by microfiuidic channels characterized in that the surface of the channels and the chambers are patterned and comprise hydrophilic and hydrophobic areas. The surface energy in correspondence of the areas, i.e., the capillary force, being such that a liquid can be guided along the hydrophilic path, enter the chamber from one side, wet part of one surface of the chamber as a thin layer without touching the opposite surface of the chamber, thus avoiding to fill the volume inside the chamber in correspondence of the hydrophilic pattern until a second liquid, either sequentially or in parallel, comes to wet part of the opposite surface of the chamber and eventually touches the first liquid layer, resulting in a sudden coalescence and efficient mixing between the liquids.
摘要:
A microfluidic device is provided including at least one chamber accessible by microfluidic channels characterized in that the surface of the channels and the chambers are patterned and comprise hydrophilic and hydrophobic areas. The surface energy in correspondence of the areas, i.e., the capillary force, being such that a liquid can be guided along the hydrophilic path, enter the chamber from one side, wet part of one surface of the chamber as a thin layer without touching the opposite surface of the chamber, thus avoiding to fill the volume inside the chamber in correspondence of the hydrophilic pattern until a second liquid, either sequentially or in parallel, comes to wet part of the opposite surface of the chamber and eventually touches the first liquid layer, resulting in a sudden coalescence and efficient mixing between the liquids.
摘要:
A disposable electrophoresis device for separation of a complex protein sample, using two-dimensional gel electrophoresis and method thereof are disclosed. The device comprises a carrier with a first area for a first dimension gel strip and a second area for a second dimension gel, where the two areas are directly in contact with each other. The device further comprises a body made of a hard component and an elastic component layer at a variable distance from the carrier. The body further comprises at least one cavity for external actuation of at least one valve, wherein the valve is represented by the elastic component layer.
摘要:
Described is a process for the separation of a sample mixture for analytical reason based on two-dimensional gel electrophoresis. The method is involving a first separation in a first gel strip on the basis of isoelectric points and a second separation in a second gel on the basis of molecular size. When starting the separation in the second dimension the buffer solution for transferring the compounds separated in the first dimension into the second dimension gel is containing sodium dodecyl-sulfate (SDS) and by applying an electric field the SDS migrates electrokinetically into the first gel strip, and the compounds are being complexed simultaneously with SDS.
摘要:
An arrangement for two-dimensional separation of a complex analyte mixture is provided comprising a first separation device for the separation in a first dimension and a second device for the separation in the second dimension. In the area of the interface between the first and the second device a concentration zone is arranged for concentrating the individual sample fractions or components, respectively, leaving the first device before introduction into the second device. The concentration zone is defined in a segment between two or more electrodes seen in flow direction of the sample or sample fractions to be separated. The concentration is achieved by applying a voltage between two electrodes with polarity opposite to the charge of the components of the fraction, sufficiently strong to win the dragging force of the hydrodynamic flow. The introduction into the second device is carried out by turning off the potential difference between the electrodes.
摘要:
An energy recovery system 100 for a marine vessel 200 is herein disclosed comprising at least one water turbine 101, 102 with vertical axis 105, 106 respectively arranged aft and off center, that is either port side or starboard side, with respect to a rotational axis 211 of a respective propeller but at a distance from the propeller and from the rotational axis of the propeller such as to be at least partially in a wake range 21′ of the propeller in order to recover at least part of the dissipated rotational power. A vessel 200 comprising at least one energy recovery system 100 and a method for recovering at least part of the energy dissipated by the marine vessel are herein also disclosed.
摘要:
Centrifugal force based microfluidic systems for the automated analysis of fluids involving the use of magnetically responsive particles and methods thereof are disclosed. A magnet is fixed to a supporting device of the system in correspondence to a retention zone of the system so as to rotate therewith and to generate a magnetic field which magnetically manipulates the magnetically responsive particles contained in a reaction chamber of the system.
摘要:
A biochemical assay is provided comprising a substrate being capable of binding at least a target analyte and eventually other constituents contained in a biological sample, a test zone on the substrate for sample application, a non-immobilized conjugate reagent provided in the test zone for labeling the analyte, the conjugate reagent being capable of specific binding to the analyte but remaining unbound to the substrate, and a flow path for transporting a washing liquid through the test zone and washing an excess of unbound conjugate reagent away from the test zone. The test zone is also a detection area for detecting the labeled analyte.
摘要:
A biochemical assay is provided comprising a substrate being capable of binding at least a target analyte and eventually other constituents contained in a biological sample, a test zone on the substrate for sample application, a non-immobilized conjugate reagent provided in the test zone for labelling the analyte, the conjugate reagent being capable of specific binding to the analyte but remaining unbound to the substrate, and a flow path for transporting a washing liquid through the test zone and washing an excess of unbound conjugate reagent away from the test zone. The test zone is also a detection area for detecting the labelled analyte.
摘要:
An autopilot system for automatically steering a marine vessel is disclosed. The marine vessel comprises two electric motors connected to respective propulsors, two rudders, a rudder steering mechanism and a navigation system for determining the vessel position with respect to an intended course. The autopilot system can operate according to one or more autopilot modes comprising at least a motor steering autopilot mode wherein the autopilot system is configured to automatically control the rudder steering mechanism in order to lock the rudders at a fixed angle, and based on a feedback from the navigation system to independently and dynamically adjust power supply to each of the propulsors by independently and dynamically regulating electric power supply to the respective electric motors in order to maintain the vessel on course.