Abstract:
A variety of elastomeric-based microfluidic devices and methods for using and manufacturing such devices are provided. Certain of the devices have arrays of reaction sites to facilitate high throughput analyses. Some devices also include reaction sites located at the end of blind channels at which reagents have been previously deposited during manufacture. The reagents become suspended once sample is introduced into the reaction site. The devices can be utilized with a variety of heating devices and thus can be used in a variety of analyses requiring temperature control, including thermocycling applications such as nucleic acid amplification reactions, genotyping and gene expression analyses.
Abstract:
PROBLEM TO BE SOLVED: To provide devices that can be utilized to conduct a variety of nucleic acid amplification reactions, while having sufficient versatility for use in other types of analyses as well.SOLUTION: An M×N matrix microfluidic device for performing a matrix of reactions is disclosed. This device (100) has a plurality of reaction cells (106) in communication with one of either a sample inlet (120) or a reagent inlet (124) through a via formed within an elastomeric block of the device. Methods provided include a method for forming vias in parallel in an elastomeric layer of the microfluidic device. The method includes a step of using patterned photoresist masks and a step of etching regions or portions of an elastomeric layer of the elastomeric block.
Abstract:
PROBLEM TO BE SOLVED: To provide a microfluidic device designed for the use in performing various chemical and biochemical analyses from the advantageous point of view achieved by using the microfluidic device and eliminating the present limitations of conventional devices. SOLUTION: This microfluidic device includes (a) a flow channel formed in an elastic material and (b) a plurality of blind flow channels, fluid-communicating with the flow channel, and the region of each of the blind flow channels is equipped with the blind flow channel specifying a reaction site. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide devices that can be utilized to conduct a variety of nucleic acid amplification reactions, while having sufficient versatility for use in other types of analyses as well.SOLUTION: A variety of elastomeric-based microfluidic devices and methods for using and manufacturing such devices are provided. Some devices have arrays of reaction sites to facilitate high throughput analyses. Some devices also include reaction sites located at the end of blind channels at which reagents have been previously deposited during manufacture. The reagents become suspended once sample is introduced into the reaction site. The devices can be utilized with a variety of heating devices and thus can be used in a variety of analyses requiring temperature control, including thermocycling applications such as nucleic acid amplification reactions, genotyping and gene expression analyses.
Abstract:
PROBLEM TO BE SOLVED: To provide a device which can be utilized to conduct a variety of nucleic acid amplification reactions, while having sufficient versatility for use in other types of analyses as well. SOLUTION: A variety of elastomeric-based microfluidic devices and methods for using and manufacturing such devices are provided. Certain of the devices have arrays of reaction sites to facilitate high throughput analyses. Some devices also include reaction sites located at the end of blind channels at which reagents have been previously deposited during manufacture. The reagents become suspended once sample is introduced into the reaction site. The devices can be utilized with a variety of heating devices and thus can be used in a variety of analyses requiring temperature control, including thermocycling applications such as nucleic acid amplification reactions, genotyping, and gene expression analyses. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
An M x N matrix microfluidic device for performing a matrix of reactions, the device (100) having a plurality of reaction cells (106) in communication with one of either a sample inlet (120) or a reagent t inlet (124) through a via formed within an elastomeric block of the device. Methods provided include a method for forming vias in parallel in an elastomeric layer of an elastomeric block of a microfluidic device, the method includes using patterned photoresist masks and etching reagents to etch away regions or portions of an elastomeric layer of the elastomeric block.
Abstract:
High throughput screening of crystallization of a target material is accomplished by simultaneously introducing a solution of the target material into a plurality of chambers of a microfabricated fluidic device (4200). The microfabricated fluidic device is then manipulated to vary the solution condition in the chambers (4202a, 4202b), thereby simultaneously providing a large number of crystallization environments. Control over changed solution conditions may result from a variety of techniques, including but not limited to metering volumes of crystallizing agent into the chamber by volume exclusion, by entrapment of volumes of crystallizing agent determined by the dimensions of the microfabricated structure, or by cross-channel injection of sample and crystallizing agent into an array of junctions defined by intersecting orthogonal flow channels.
Abstract:
An M x N matrix microfluidic device for performing a matrix of reactions, the device (100) having a plurality of reaction cells (106) in communication with one of either a sample inlet (120) or a reagent t inlet (124) through a via formed within an elastomeric block of the device. Methods provided include a method for forming vias in parallel in an elastomeric layer of an elastomeric block of a microfluidic device, the method includes using patterned photoresist masks and etching reagents to etch away regions or portions of an elastomeric layer of the elastomeric block. Fig. 1A
Abstract:
Introducing a sample solution that includes a target nucleic acid polymer into a microfluidic device that has a sample region with: (i) a flow channel in fluid communication with one fluid inlet and one fluid outlet; and (ii) a plurality of valves that, when closed, partition the flow channel into isolated reaction sites. Each valve is formed from an elastomeric membrane that separates a control channel from the flow channel and which is disposed to be deflected into or retracted out from the flow channel in response to an actuation force to the control channel, thereby forming the valve. The method includes closing the valves, thereby partitioning the flow channel into isolated reaction sites containing portions of said sample solution; exposing the reaction sites to conditions under which the nucleic acid polymer is amplified to produce an amplification product; and opening said valves and displacing sample solution out of the flow channel.