This invention features systems and methods for the detection of analytes, and their use in the treatment and diagnosis of disease.

This invention features systems and methods for the detection of analytes, and their use in the treatment and diagnosis of disease.

A method for extracting nucleic acid from a biological sample is disclosed. The method comprises steps of: (i) mixing a biological sample, an anionic surfactant and a chaotropic compound to obtain a lysate; (ii) mixing the lysate, an alkanol having a boiling point higher than 75 C., a chaotropic compound and silica particles to adsorb the nucleic acid on the silica particles; (iii) washing the silica particles having the nucleic acid adsorbed thereon with a washing liquid; and (iv) eluting the nucleic acid adsorbed on the silica particles with an eluent, wherein at least steps (i) and (ii) are performed at a temperature higher than 75 C.

A method for extracting nucleic acid from a biological sample is disclosed. The method comprises steps of: (i) mixing a biological sample, an anionic surfactant and a chaotropic compound to obtain a lysate; (ii) mixing the lysate, an alkanol having a boiling point higher than 75 C., a chaotropic compound and silica particles to adsorb the nucleic acid on the silica particles; (iii) washing the silica particles having the nucleic acid adsorbed thereon with a washing liquid; and (iv) eluting the nucleic acid adsorbed on the silica particles with an eluent, wherein at least steps (i) and (ii) are performed at a temperature higher than 75 C.

This invention features systems and methods for the detection of analytes, and their use in the treatment and diagnosis of disease.

Epitachophoresis (ETP) methods and systems described herein allow for efficient and improved extraction of DNA and RNA molecules from a biological sample. The extraction may involve fragmenting nucleic acid molecules to smaller sizes and then running the fragmented sample through an ETP device. The fragmentation improves the extraction of nucleic acid molecules when using a gel with ETP. Fragmentation may also reduce extraction of undesired ribosomal RNA with gel ETP. Nucleic acid molecules are fragmented for preparing a library, and therefore the fragmentation of nucleic acid molecules before extraction rather than after extraction does not negatively impact library prep. In order to facilitate fragmentation, nucleic acid molecules may be treated so that the nucleic acid molecules are not protected from fragmentation.

Epitachophoresis (ETP) methods and systems described herein allow for efficient and improved extraction of DNA and RNA molecules from a biological sample. The extraction may involve fragmenting nucleic acid molecules to smaller sizes and then running the fragmented sample through an ETP device. The fragmentation improves the extraction of nucleic acid molecules when using a gel with ETP. Fragmentation may also reduce extraction of undesired ribosomal RNA with gel ETP. Nucleic acid molecules are fragmented for preparing a library, and therefore the fragmentation of nucleic acid molecules before extraction rather than after extraction does not negatively impact library prep. In order to facilitate fragmentation, nucleic acid molecules may be treated so that the nucleic acid molecules are not protected from fragmentation.

Provided herein are methods and devices for obtaining nucleotide sequence information from nucleic acid and nucleic acid samples. The methods involve modifying and manipulating nucleic acids while in movement (flow) and without reliance on fixation, amplification or hybridization techniques. The methods and devices are sensitive enough to detect signal from and thus interrogate single nucleic acids on an individual basis rather than as a bulk population.

The invention relates to deformable polymers comprising immobilised primers, particularly for use in nucleic acid sequencing, such as concurrent sequencing.

The invention relates to deformable polymers comprising immobilised primers, particularly for use in nucleic acid sequencing, such as concurrent sequencing.