| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 204454000 | With adjustment or alteration of electro-osmotic bulk flow | 10 |
| 20100108514 | METHOD OF CONTROLLING TEMPERATURE - To suppress temperature variations of sample fluids within flow channels for electrophoresis, in a method for controlling temperatures within micro flow channels. When controlling the temperatures of sample fluids within micro flow channels of electrophoresis chips, in which flow channels through which electrophoresis occurs by application of electrical potential differences can be switched, temperature variations of the sample fluids within the micro flow channels, caused by differences in heat generated by the sample fluids prior to and following the switching of the flow channels, are predicted. Control properties for temperature control in order to cancel the temperature variations are changed during the switching of the flow channels. | 05-06-2010 |
| 20100320088 | MICRODEVICE FOR TREATING LIQUID SPECIMENS - A device for forming at least one circulating flow, or vortex, at the surface of a drop of liquid, including at least two first electrodes forming a plane and having edges facing each other, such that the contact line of a drop, deposited on the device and fixed relatively to the device, has a tangent forming, when projected onto the plane of the electrodes, an angle between 0° and 90° with the edges facing each other of the electrodes. | 12-23-2010 |
| 20110192725 | POLYMERS FOR SEPARATION OF BIOMOLECULES BY CAPILLARY ELECTROPHORESIS - The invention provides uncharged water-soluble silica-adsorbing polymers for suppressing electroendoosmotic flow and to reduce analyte-wall interactions in capillary electrophoresis. In one aspect of the invention, one or more of such polymers are employed as components of a separation medium for the separation of biomolecules, such as polynucleotides, polysaccharides, proteins, and the like, by capillary electrophoresis. Generally, such polymers are characterized by (i) water solubility over the temperature range between about 20° C. to about 50° C., (ii) concentration in a separation medium in the range between about 0.001% to about 10% (weight/volume), (iii) molecular weight in the range of about 5×10 | 08-11-2011 |
| 20120043209 | MICROFLUIDIC CONTROL APPARATUS AND OPERATING METHOD THEREOF - A microfluidic control apparatus and operating method thereof. The microfluidic control apparatus includes a photoconductive material layer and a flow passage. When a light with a specific optical pattern is emitted toward the photoconductive material layer, at least three virtual electrodes are formed on the photoconductive material layer according to the specific optical pattern. The at least three virtual electrodes include a first virtual electrode, a second virtual electrode and a third virtual electrode disposed beside the first virtual electrode. There is a specific proportion among a distance between first virtual electrode and third virtual electrode, a width of first virtual electrode, a distance between first virtual electrode and second virtual electrode, and a width of second virtual electrode. When the specific optical pattern changes, the at least three virtual electrodes also change to generate an electro-osmotic force to control the moving state of a microfluid in a flow passage. | 02-23-2012 |
| 20130146459 | MULTIPHASE NON-LINEAR ELECTROKINETIC DEVICES - This invention provides devices and apparatuses comprising the same and methods of use thereof for efficient pumping and/or mixing of relatively small volumes of fluid, wherein the fluid contains a sample within an inner fluid phase dispersed in an outer phase. Such devices utilize nonlinear electrokinetics as a primary mechanism for driving fluid flow and/or mixing the fluid. Methods of cellular analysis, drug delivery and others, utilizing the devices are described. | 06-13-2013 |
| 20130220811 | METHOD AND APPARATUS FOR CONTROLLING A FLOW OF PARTICLES BY WAY OF A THROUGH-HOLE - A system that incorporates the subject disclosure may include, for example, a method for generating an electric or pressure difference force that induces a plurality of particles to flow through a through-hole. Independently adjustable heat source in a vicinity of the through-hole induces a thermodynamic force for modifying the flow of the plurality of particles through the through-hole. Additional embodiments are disclosed. | 08-29-2013 |
| 20130277218 | DIGITAL MICROFLUIDIC DEVICES AND METHODS INCORPORATING A SOLID PHASE - Devices and methods are provided for performing droplet-based solid phase processing steps on a digital microfluidic device. A solid phase material, which may be a porous solid phase material such as a porous polymer monolith is formed or located on a digital microfluidic element. The solid phase may be formed by an in-situ method in which the digital microfluidic array is actuated to transport a droplet of solid phase pre-cursor solution to a selected element on the array, and subsequently processed to form a solid phase on the array element. The integration of a solid phase material with a digital microfluidic array enables a wide range of applications including solid phase extraction and sample concentration. | 10-24-2013 |
| 20140034499 | MICROFLUIDIC CONTROL APPARATUS AND OPERATING METHOD THEREOF - A microfluidic control apparatus operating method is disclosed. The microfluidic control apparatus operating method is applied in a microfluidic control apparatus, and the microfluidic control apparatus includes a photoconductive material layer and a flow passage. The microfluidic control apparatus operating method includes steps of (a) when a light with a specific optical pattern is emitted toward the photoconductive material layer, at least three virtual electrodes being formed on the photoconductive material layer according to the specific optical pattern; (b) when the specific optical pattern changes, the at least three virtual electrodes also changing to generate an electro-osmotic force to control a moving state of a microfluid in the flow passage. | 02-06-2014 |
| 20160116438 | DROPLET ACTUATOR AND METHODS - The invention provides a droplet actuator designed to provide reliable electrical connections to droplets to reduce or eliminate gas bubble formation during droplet operations. The invention also provides methods and systems for reducing or eliminating the formation of bubbles in a droplet during droplet operations. | 04-28-2016 |
| 20160377591 | DEVICES, SYSTEMS AND METHODS FOR SEQUENCING BIOMOLECULES - The present disclosure provides a biomolecule sequencing device that includes at least one set of nano-gap electrodes arranged so that a current flows when a biomolecule contained in a sample passes in proximity to the set of nano-gap electrodes, an electrophoresis electrode pair for forming an electric field for moving the biomolecule between the electrodes of the set of nano-gap electrodes, a flow path for flowing the sample in a direction towards the nano-gap electrode pair, a flow path for flowing the sample in a direction away from the nano-gap electrode pair, a measurement unit configured to measure a tunnel current generated when the biomolecule passes between the electrodes of the nano-gap electrode pair with an electric field being formed, and an identification unit configured to sequence the biomolecule. | 12-29-2016 |
