The invention features devices and methods for the deterministic separation of particles. Exemplary methods include the enrichment of a sample in a desired particle or the alteration of a desired particle in the device. The devices and methods are advantageously employed to enrich for rare cells, e.g., fetal cells, present in a sample, e.g., maternal blood and rare cell components, e.g., fetal cell nuclei. The invention further provides a method for preferentially lysing cells of interest in a sample, e.g., to extract clinical information from a cellular component, e.g., a nucleus, of the cells of interest. In general, the method employs differential lysis between the cells of interest and other cells (e.g., other nucleated cells) in the sample.

The invention relates to systems and methods for studying patient cancer samples in cis-co-culture with stromal cells from the same patient. For example, the invention provide systems and methods for testing therapeutic agents in vitro in an environment that simulates an in vivo environment to identify agents that are therapeutically effective for the patient.

This applicator comprises a base (22) and a product applicator tongue (25) that projects from the base (22) along an axis (A-A), said tongue (25) defining a central cavity (30). It comprises a massage element (32) disposed in the central cavity (30), with the massage (32) element and the tongue (25) defining therebetween in the cavity (30) an intermediary product retaining space (33). The massage element (32) and the tongue (25) can move in relation to one another transversally in relation to the axis (A-A).

A device includes a substrate having a top surface and a bottom surface opposite to the top surface; a first microfluidic channel and a second microfluidic channel defined on the substrate. The second microfluidic channel is distinct from the first microfluidic channel, and is in contact with, and substantially parallel to, the first microfluidic channel. A method for forming an endothelialized microchannel, a method for forming a vascularized spheroid, and a method for forming a vascularized organoid are also described.

An apparatus for supporting an array of layers of amphiphilic molecules, the apparatus comprising: a body, formed in a surface of the body, an array of sensor wells capable of supporting a layer of amphiphilic molecules across the sensor wells, the sensor wells each containing an electrode for connection to an electrical circuit, and formed in the surface of the body between the sensor wells, flow control wells capable of smoothing the flow of a fluid across the surface.

The present invention relates to ellagic acid formulations for performing coagulation assays that are highly stable for long term storage and reduce assay time. Particularly, aspects of the present invention are directed to a composition and method of preparing ellagic acid in a highly soluble format for use in a coagulation assay. For example, the ellagic acid may be solubilized in one or more of sodium hydroxide, methanol, a polyether compound, particularly polyethylene glycol, polyethylene oxide, or polyoxyethylene, and a cyclodextrin guest-host complex.

The present invention relates to analytical testing devices including micro-environment sensors and methods for assaying coagulation in a fluid sample applied to the micro-environment sensors, and in particular, performing one or more types of coagulation assays using one or more micro-environment sensors in a single point of care combined test cartridge. For example, the present invention may be directed to test sensor including at least one transducer coated with a polymer layer. The polymer layer comprises a thrombin-cleavable peptide with a detectable moiety.

Ingestible devices configured to obtain samples when present in the GI tract of a subject, as well as related systems and methods, are disclosed. Sampling systems that include an absorbent material a preservative, such as an analyte preservative, as well as related materials and methods, are also disclosed.

Sampling systems that include an absorbent material a preservative, such as an analyte preservative, as well as related materials and methods, are disclosed.

Nanofluidic devices and methods of the invention are capable of autonomously isolating individual microbial cells using constrictive channels and growing monocultures of the cells for automated characterization of their biochemical properties and interactions with mammalian cells. Single microbial cells, such as bacterial cells, are isolated directly from environmental sources and cultured using chemical factors from their native environment.