Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, L, L1, L2, L3, M and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, L, L1, L2, L3, M and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, wherein R1, R2, R3, L1, L2, L3, L4, L5, L6, M1, M2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, L1, L3, L4, L6, L7, L8, M1, M2, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, L1, L3, L4, L6, L7, L8, M1, M2, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, wherein R1, R2, R3, L1, L2, L3, L4, L5, L6, M1, M2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: A microfluidic mixing device comprising two bellows pumps (105, 115), microfluidic cartridges comprising the same and methods for use of the same are provided. The disclosed device enables efficient mixing of samples at the microfluidic scale.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, R1, R2, R3, L1, L2, L3, L4, L5, L6, M1, M2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, L, L1, L2, L3, M and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, La, Lb, L1, L2, L3, M, m, and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, La, Lb, L1, L2, L3, M, m, and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, L, L1, L2, M and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, L, L1, L2, L3, M and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

Abstract: Microfluidic circuit elements, such as a microvalve, micropump or microvent, formed of a microcavity divided by a diaphragm web into a first subcavity bounded by a first internal wall and a second subcavity bounded by a second internal wall, where the diaphragm web is characterized as a thin film having a first state contacting the first internal wall and a second state contacting the second internal wall and exhibiting essentially no elasticity in moving between the first state and the second state, the thin film web having been stretched beyond its yield point before or during use are provided. The disclosed elements enable faster and more efficient cycling of the diaphragm in the microcavity and increases the diaphragm surface area. In a preferred embodiment, the microfluidic circuit element is pneumatically driven and controls the motion of fluids in a microassay device.

Abstract: A specimen collection and delivery apparatus for collecting clinical specimens and delivery of samples thereof to, e.g., microfluidic testing devices for diagnostic analysis is disclosed. The specimen collection and delivery apparatus includes a closure housing for coupling with a sample tube at one end, an open luer for coupling with a complementary luer on a microfluidic device at the other end, and a filter matrix disposed in the interior. The filter matrix is air permeable and liquid impermeable at atmospheric pressure and prevents sample from flowing through the open luer end when coupled to a sample tube containing a specimen. Under vacuum, the liquid sample fraction of the specimen can be drawn through the filter matrix and into the microfluidic testing device through the luer connection for diagnostic analysis.

Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, R1, R2, R3L1, L2, L3, L4, L5, L6, M1, M2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Abstract: Compounds useful as fluorescent or colored dyes that enable visual detection of biomolecules and other analytes are disclosed. The compounds comprise a phenylethynylnapthalene moiety represented by the following structure (I): including salts thereof, wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e, R2f, R2g, R2h, R2i, R2j, x and y are as defined herein. Methods associated with preparation and use of such compounds for visually detecting a biomolecule are also provided.

Abstract: A specimen collection and delivery apparatus for collecting clinical specimens and delivery of samples thereof to, e.g., microfluidic testing devices for diagnostic analysis is disclosed. The specimen collection and delivery apparatus includes a closure housing for coupling with a sample tube at one end, an open luer for coupling with a complementary luer on a microfluidic device at the other end, and a filter matrix disposed in the interior. The filter matrix is air permeable and liquid impermeable at atmospheric pressure and prevents sample from flowing through the open luer end when coupled to a sample tube containing a specimen. Under vacuum, the liquid sample fraction of the specimen can be drawn through the filter matrix and into the microfluidic testing device through the luer connection for diagnostic analysis.

Abstract: Microfluidic cartridges or devices for serum separation and blood cross-match analysis are provided. The devices may include a serum separation subcircuit alone or in combination with a solute mixing subcircuit. The serum separation subcircuit promotes on-cartridge clotting of a blood sample and manipulates the flow of the separated serum sample for subsequent cross-match analysis with a second blood sample, for example. The solute mixing subcircuit includes at least two intake channels, one for a whole blood sample from, for example, a blood donor and the other for the separated serum sample from, for example, a transfusion recipient. The solute mixing subcircuit further includes a serpentine mixing channel conjoined to a downstream channel. Under vacuum generated by a conjoined finger pump, the two input streams fill the serpentine mixing and downstream channels due to capillary action, enabling visualization of an agglutination reaction.

Abstract: A microfluidic mixing device comprising two bellows pumps (105, 115), microfluidic cartridges comprising the same and methods for use of the same are provided. The disclosed device enables efficient mixing of samples at the microfluidic scale.