The disclosure provides methods and compositions, e.g., kits, for identifying or authenticating a sample, e.g., a tumor model, based on the genotype of the sample at a group of SNP loci.

The disclosure provides methods and compositions, e.g., kits, for identifying or authenticating a sample, e.g., a tumor model, based on the genotype of the sample at a group of SNP loci.

The present invention provides, among other things, cartridges for multiplexed antimicrobial susceptibility testing (AST), single cartridges useful for both AST and quality control of AST, and systems and methods relating thereto.

The disclosure provides methods and compositions, e.g., kits, for identifying or authenticating a sample, e.g., a tumor model, based on the genotype of the sample at a group of SNP loci.

The disclosure provides methods and compositions, e.g., kits, for identifying or authenticating a sample, e.g., a tumor model, based on the genotype of the sample at a group of SNP loci.

The present invention provides, among other things, cartridges for multiplexed antimicrobial susceptibility testing (AST), single cartridges useful for both AST and quality control of AST, and systems and methods relating thereto.

The present disclosure relates to a nanoparticle including a first layer including a first polymer and a first plurality of accessory oligonucleotides, a second layer including a second polymer and a single template site for bonding a template polynucleotide, and a third layer including a third polymer and a second plurality of accessory oligonucleotides. Also described herein is a method of making said nanoparticle, including dip-coating, e.g., successively dipping a surface with wettable nanodomains in different polymer solutions. Further described herein is a method of making the nanoparticles by forming them in nanowells and subsequently releasing them from the nanowells. Also described herein is a method of attaching the nanoparticle to a substrate and amplifying the template polynucleotide using a polymerase.

The present disclosure relates to a nanoparticle including a first layer including a first polymer and a first plurality of accessory oligonucleotides, a second layer including a second polymer and a single template site for bonding a template polynucleotide, and a third layer including a third polymer and a second plurality of accessory oligonucleotides. Also described herein is a method of making said nanoparticle, including dip-coating, e.g., successively dipping a surface with wettable nanodomains in different polymer solutions. Further described herein is a method of making the nanoparticles by forming them in nanowells and subsequently releasing them from the nanowells. Also described herein is a method of attaching the nanoparticle to a substrate and amplifying the template polynucleotide using a polymerase.

Methods of isolating DNA of a fetus of an ongoing pregnancy are provided according to the present invention which include obtaining a maternal endocervical sample containing maternal cells and fetal extravillous trophoblast cells from a pregnant subject; isolating fetal extravillous trophoblast cells from the maternal endocervical sample, producing isolated fetal extravillous trophoblast cells contaminated with maternal DNA; lysing the isolated fetal extravillous trophoblast cells; isolating fetal nuclei from the lysed fetal extravillous trophoblast cells, producing isolated fetal nuclei, thereby removing at least a portion of the contaminating maternal DNA; and purifying genomic DNA from the isolated fetal nuclei, producing purified fetal genomic DNA. The purified fetal genomic DNA can be assayed to determine a characteristic of a genomic DNA sequence of the purified fetal genomic DNA, thereby determining a characteristic of DNA of a fetus of an ongoing pregnancy.

Methods of isolating DNA of a fetus of an ongoing pregnancy are provided according to the present invention which include obtaining a maternal endocervical sample containing maternal cells and fetal extravillous trophoblast cells from a pregnant subject; isolating fetal extravillous trophoblast cells from the maternal endocervical sample, producing isolated fetal extravillous trophoblast cells contaminated with maternal DNA; lysing the isolated fetal extravillous trophoblast cells; isolating fetal nuclei from the lysed fetal extravillous trophoblast cells, producing isolated fetal nuclei, thereby removing at least a portion of the contaminating maternal DNA; and purifying genomic DNA from the isolated fetal nuclei, producing purified fetal genomic DNA. The purified fetal genomic DNA can be assayed to determine a characteristic of a genomic DNA sequence of the purified fetal genomic DNA, thereby determining a characteristic of DNA of a fetus of an ongoing pregnancy.