The University of North Carolina at Chapel Hill

Other

John Michael Ramsey

Laurent Menard

John Scott Mellors

William V Henley

Kevin Schultze

Nicholas George Batz

Erin Anne Redman

William Hampton Henley

William A Black

Andrew Hampton

William McKay Gilliland, Jr

Emily Oblath

Michael Rubinstein

Sergey Panyukov

Bruno Jean-Bernard Coupier

Thomas Linz

Jinsheng Zhou

Mark H Schoenfisch

Michael A Tycon

Oscar A McCrate

Benjamin Privett

Valeri Gorbounov

Joseph Carl Gaiteri

Andrew Chambers

Jean Pierre Alarie

Adam D Pfefferle

Ellen Foot Perkowski

Described herein are compositions, devices, and methods for improving a surface property of a substrate. In some embodiments, the hydrophobicity and/or fluorocarbon-phobicity of the surface is increased. Some embodiments include compositions, devices and methods for improving bead loading and/or immiscible oil sealing of microwell array reactions on plastic microfluidic devices.

Compositions, devices, and methods for improving a surface property of a substrate

Decoding methods are provided for identifying populations in assays, particularly multiplexing assays and those associated with fluidic devices.

Solid supports for decoding methods for multiplexing assays

Analysis systems with a housing having a chamber sized and configured to receive at least one microfluidic device. The systems also include an optic system coupled to the housing in optical communication with the at least one microfluidic device, a controller coupled to the optic system, a heat source coupled to the optic system and thermally coupled to the at least one microfluidic device held in the housing, and a sub-array selection module in communication with the controller. The sub-array selection module is configured to select a sub-set of sets of microwells of at least one fluid channel of the microfluidic device for imaging by the optic system after a reaction step (e.g., one thermocycle) during an assay.

Analysis systems with microfluidic devices, microfluidic devices and related methods

A microfluidic device includes a plurality of reaction wells; and a plurality of solid supports, and each of the solid supports has a reagent attached thereto. The reagent is attached to the solid support via a labile reagent/support bond such that the reagent is configured to be cleaved from the support via a cleaving operation.

Microfluidic devices, solid supports for reagents and related methods

A miniature electrode apparatus is disclosed for trapping charged particles, the apparatus includes, along a longitudinal direction, a first end cap electrode, a central electrode having an aperture, and a second end cap electrode. The aperture is elongated in the lateral plane and extends through the central electrode along the longitudinal direction and the central electrode surrounds the aperture in a lateral plane perpendicular to the longitudinal direction to define a transverse cavity for trapping charged particles. Electric fields can be applied in a y-direction of the lateral plane across one or more planes perpendicular to the longitudinal axis to translocate and/or manipulate ion trajectories.

Ion traps with y-directional ion manipulation for mass spectrometry and related mass spectrometry systems and methods

Methods, systems and devices that allow independently applied pressures to a BGE reservoir and a sample reservoir for pressure-driven injection that can inject a discrete sample plug into a separation channel that does not require voltage applied to the sample reservoir and can allow for in-channel focusing methods to be used. The methods, systems and devices are particularly suitable for use with a mass spectrometer.

Pressure driven fluidic injection for chemical separations

Devices and methods generate an ordered restriction map of genomic DNA extracted from whole cells, nuclei, whole chromosomes, or other sources of long DNA molecules. The devices have a fluidic microchannel that merges into a reaction nanochannel that merges into a detection nanochannel at an interface where the nanochannel diameter decreases in size by between 50% to 99%. Intact molecules of DNA are transported to the reaction nanochannel and then fragmented in the reaction nanochannel using restriction endonuclease enzymes. The reaction nanochannel is sized and configured so that the fragments stay in an original order until they are injected into the detection nanochannel. Signal at one or more locations along the detection nanochannel is detected to map fragments in the order they occur along a long DNA molecule.

Nanofluidic devices for the rapid mapping of whole genomes and related systems and methods of analysis

Devices for controlling the capture, trapping, and transport of macromolecules include at least one fluidic transport nanochannel that intersects and is in fluid communication with at least one transverse nanochannel with (shallow) regions and/or with integrated transverse electrodes that enable fine control of molecule transport dynamics and facilitates analyses of interest, e.g., molecular identification, length determination, localized (probe) mapping and the like.

Nanofluidic devices with integrated components for the controlled capture, trapping, and transport of macromolecules and related methods of analysis

Devices and methods generate an ordered restriction map of genomic DNA extracted from whole cells. The devices have a fluidic microchannel that merges into a reaction nanochannel that merges into a detection nanochannel at an interface where the nanochannel diameter decreases in size by between 50% to 99%. Intact molecules of DNA are transported to the reaction nanochannel and then fragmented in the reaction nanochannel using restriction endonuclease enzymes. The reaction nanochannel is sized and configured so that the fragments stay in an original order until they are injected into the detection nanochannel. Signal at one or more locations along the detection nanochannel is detected to map fragments in the order they occur along a long DNA molecule.

Devices, such as chips for DNA analysis, have at least one fluid transport nanochannel with at least one intersecting (e.g., transverse) sensing nanochannel that can be monitored for change in ionic current to determine characteristics or parameters of interest, e.g., molecular identification, length determination, localized (probe) mapping and the like.

Devices with a fluid transport nanochannel intersected by a fluid sensing nanochannel and related methods

Decoding methods for multiplexing assays and associated fluidic devices, kits, and solid supports

Methods of forming a chip with fluidic channels include forming (e.g., milling) at least one nanofunnel with a wide end and a narrow end into a planar substrate, the nanofunnel having a length, with width and depth dimensions that both vary over its length and forming (e.g., milling) at least one nanochannel into the planar substrate at an interface adjacent the narrow end of the nanofunnel.

Growing community of inventors

Chapel Hill, NC, United States of America

John Michael Ramsey