Other

The Methodist Hospital

The Methodist Hospital Research Institute

Lidong Qin

Kai Zhang

Yujun Song

Myeong Chan Jo

Joon Hee Jang

A multi-well plate comprising: inlet wells configured to contain liquid; walled observation windows located between the inlet wells, each observation window being associated with a respective inlet well; detection wells, each being disposed below a respective observation window and being associated with the respective inlet well associated with the respective observation window; outlet wells located between the inlet wells and the observation windows, each outlet well being associated with a respective inlet well and a respective detection well; inlet channels, disposed in first groups, each first group providing fluid communication between an inlet well and a respective detection well; outlet channels, disposed in second groups, each second group providing fluid communication between a detection well and a respective outlet well. The inlet channels are configured to prevent passage of the liquid from the inlet wells to the respective detection wells if no external force is applied to the liquid.

Double-layer multi-well plate

According to the invention, generally, a method for making a microfluidic aliquoting (MA) chip, adapted to fit in a Petri dish, has a center well (inlet) connected by branched channels to a plurality of side wells (outlets). The chip comes in various types, including a bMA Chip T1, bMA Chip T2, bMA Chip T3, and an rMA Chip. The branched channel improvement provides for a greater distance between neighboring channels and a decreased density near the center well. Design improvements including an injection mold design for an insert and a base and a multiplex hole punch allow for rapid fabrication of the MA chip.

Methods for making a microfluidic aliquot chip

According to the invention, generally, a microfluidic aliquot (MA) chip, adapted to fit in a Petri dish, has a center well (inlet) connected by branched channels to a plurality of side wells (outlets). The chip comes in various types, including a bMA Chip T1, bMA Chip T2, bMA Chip T3, and an rMA Chip. The branched channel improvement provides for a greater distance between neighboring channels and a decreased density near the center well. An insert and a base are configured to create an MA chip.

Microfluidic aliquot chip for single-cell isolation

Apparatus for isolating an individual cell from a group of cells and transferring that isolated cell to a desired location, the apparatus comprising: a single-cell pipette tip, the single-cell pipette tip comprising: a structure having a distal end; a Y-shaped microchannel formed in the structure, the Y-shaped microchannel comprising a base microchannel, a first branch microchannel and a second branch microchannel, wherein the base microchannel extends to the distal end of the structure, the first branch microchannel is connectable to a first pressure channel, the second branch microchannel is connectable to a second pressure channel, and a single-cell trap is disposed in the base microchannel, distal to the convergence of the base microchannel with the first branch microchannel and the second branch microchannel.

Single-cell pipette assembly comprising single-cell pipette handle and single-cell pipette tip

Apparatus for determining the quantity of a target protein and other types of biomarkers or analytes present in a sample, the apparatus comprising:

Multiplexed volumetric bar chart chip for point of care biomarker and analyte quantitation

According to the invention, generally, a microfluidic aliquoting (MA) chip, adapted to fit in a Petri dish, has a center well (inlet) connected by a plurality of microchannels to a plurality of side wells (outlets). A relatively large (such as 120 &#x3bc;L) cell suspension having several cells may be injected into the inlet of the MA chip, and single cells may be substantially simultaneously and uniformly distributed, via positive pressure-driving flow, to the several (such as 120) side wells having single cells in less than 1 minute. The MA Chip has a high efficiency in cell recovery. Due to rapid isolation and easy identification of single cells, high cell viability, high enrichment factor, and convenient transfer of submicroliter single-cell suspension, MA Chips are well compatible with CTC isolation from blood, single-cell cloning, PCR, and sequencing.

Microfluidic aliquoting for single-cell isolation

Apparatus for determining the quantity of a target protein, biomarker or analyte present in a sample, comprising a top plate and a bottom plate, each comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate; wherein the top plate and the bottom plate are assembled together so that the top plate is on top of the bottom plate and the recesses of the top plate communicate with the recesses of the bottom plate so as to form a plurality of rows; and wherein at least one of the top and bottom plate is configured to slide relative to the other of the top and bottom plate in order to form a plurality of columns, with each of the columns in communication with each of the channels.

Growing community of inventors

Houston, TX, United States of America

Lidong Qin