A method of forming a polymer matrix array includes treating a surface within a well of a well array with a surface compound including a surface reactive functional group and a radical-forming distal group; applying an aqueous solution including polymer precursors to the well of the well array; and activating the radical-forming distal group of the surface coupling compound with an initiator and atom transfer radical polymerization (ATRP) catalyst to initiate radical polymerization of the polymer precursors within the well of the well array to form the polymer matrix array.

A method of forming a polymer matrix array includes treating a surface within a well of a well array with a surface compound including a surface reactive functional group and a radical-forming distal group; applying an aqueous solution including polymer precursors to the well of the well array; and activating the radical-forming distal group of the surface coupling compound with an initiator and atom transfer radical polymerization (ATRP) catalyst to initiate radical polymerization of the polymer precursors within the well of the well array to form the polymer matrix array.

Provided are a separator for separating a nucleic acid amplification system, comprising a polyethylene wax, a solid paraffin wax, and a liquid paraffin wax. Also provided is a method for separating a nucleic acid amplification system, comprising using the separator as a separation layer to separate a nucleic acid amplification system within a same container. The separating layer can be broken by means of applying an external force, thereby mixing the nucleic acid amplification system.

Provided are a separator for separating a nucleic acid amplification system, comprising a polyethylene wax, a solid paraffin wax, and a liquid paraffin wax. Also provided is a method for separating a nucleic acid amplification system, comprising using the separator as a separation layer to separate a nucleic acid amplification system within a same container. The separating layer can be broken by means of applying an external force, thereby mixing the nucleic acid amplification system.

The present disclose provides methods and systems for amplifying and quantifying nucleic acids and for detecting the presence or absence of a target in a sample. The methods and systems provided herein may utilize a device comprising a plurality of partitions separated from an external environment by a gas-permeable barrier. Certain methods disclosed herein involve subjecting nucleic acid molecules in the plurality of partitions to conditions sufficient to conduct nucleic acid amplification reactions. The nucleic acid molecules may be subjected to controlled heating in the plurality of partitions to generate data indicative of a melting point(s) of the nucleic acid molecules.

The present disclose provides methods and systems for amplifying and quantifying nucleic acids and for detecting the presence or absence of a target in a sample. The methods and systems provided herein may utilize a device comprising a plurality of partitions separated from an external environment by a gas-permeable barrier. Certain methods disclosed herein involve subjecting nucleic acid molecules in the plurality of partitions to conditions sufficient to conduct nucleic acid amplification reactions. The nucleic acid molecules may be subjected to controlled heating in the plurality of partitions to generate data indicative of a melting point(s) of the nucleic acid molecules.

A portable diagnostic device has a lysate stage (167) with a port for receiving a sample and containing magnetic beads with a probe, and an outlet port. A series of assay stages (161-164) are linked with the lysate vessel, each with a reservoir linked by channels. The final stage (164) has a sensor (169) for detecting beads attached to analyte molecules which have been conveyed according to attachment to probes on beads. Larger transport beads cause reporter beads which are tethered by target NA and probes to be transported to the final sensor stage, where they are released and detected when the transport beads have been removed.

A portable diagnostic device has a lysate stage (167) with a port for receiving a sample and containing magnetic beads with a probe, and an outlet port. A series of assay stages (161-164) are linked with the lysate vessel, each with a reservoir linked by channels. The final stage (164) has a sensor (169) for detecting beads attached to analyte molecules which have been conveyed according to attachment to probes on beads. Larger transport beads cause reporter beads which are tethered by target NA and probes to be transported to the final sensor stage, where they are released and detected when the transport beads have been removed.

Provided herein is a nucleotide cassette comprising an inducible promoter, a nucleotide sequence that corresponds to at least one single stranded RNA diagnostic target, a nucleotide sequence that encodes artemin, a molecular switch and a nucleotide sequence that encodes a DNAse enzyme and is under control of the molecular switch, wherein the single stranded RNA diagnostic target is a sequence detected by a molecular diagnostic assay. In some embodiments the nucleotide cassette can be used to obtain an RNA expression product. Also provided are vectors and cells comprising the nucleotide cassette or the RNA expression product thereof. The nucleotide cassette can further be used to obtain a diagnostic control composition comprising a non-pathogenic recombinant bacterium having a modified genetic content comprising the nucleotide cassette and to methods of producing such recombinant bacteria.

Provided herein is a nucleotide cassette comprising an inducible promoter, a nucleotide sequence that corresponds to at least one single stranded RNA diagnostic target, a nucleotide sequence that encodes artemin, a molecular switch and a nucleotide sequence that encodes a DNAse enzyme and is under control of the molecular switch, wherein the single stranded RNA diagnostic target is a sequence detected by a molecular diagnostic assay. In some embodiments the nucleotide cassette can be used to obtain an RNA expression product. Also provided are vectors and cells comprising the nucleotide cassette or the RNA expression product thereof. The nucleotide cassette can further be used to obtain a diagnostic control composition comprising a non-pathogenic recombinant bacterium having a modified genetic content comprising the nucleotide cassette and to methods of producing such recombinant bacteria.