A luminescent nanocomposite is provided comprising nanosheets comprising a transition metal selected from the group consisting of molybdenum and tungsten; a chalcogen element; and a rare earth element; and a beta-lactam dye disposed upon a surface of the nanosheets. Methods of using the luminescent nanocomposite to detect and remove mercury (II) ions from a fluid sample are also provided.

Methods and systems are provided herein to track an original biological deposit that is withdrawn from a public repository. In some aspects, the public repository may include the ATCC or any other public repository in which biological materials are deposited for access by the general public. These techniques may be used to identify a product or biological deposit from a third party that is derived from the original biological deposit.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

Improved assays for the detection and optionally the quantification of anti-drug antibodies (ADAs) in a sample are provided. The disclosed assays include a protein drug capture assay format and a protein drug target capture assay format, each of which have certain advantages over existing assays.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

Provided herein are lanthanide complexes that exhibit specific subcellular localization to primary cilium. The lanthanide complexes provided herein are useful for imaging, tagging, and pull down of binding targets located in primary cilium.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

A process for ultrasensitive in vitro detection and/or quantification of a substance of interest in a sample is performed by detecting the luminescence emission by photoluminescent inorganic nanoparticles. The process includes (i) use of photoluminescent particles comprising a photoluminescent inorganic nanoparticle consisting of a crystalline matrix having at least 10.sup.3 rare-earth ions, and coupled to a targeting agent for the substance to be analyzed, under conditions conducive to their association with the sample substance to be analyzed; (ii) exciting the rare-earth ions of the particles by an illumination device having a power of at least 50 mW and an excitation intensity of at least 1 W/cm.sup.2; (iii) detecting the luminescence emission by the particles after single-photon absorption; and (iv) determining the presence and/or concentration of the substance by interpreting said luminescence measurement. This process can be used for in vitro diagnostic purposes and as an in vitro diagnostic kit.

The invention relates to improved electrochemiluminescence assay methods for phosphorylated peptides or proteins employing phospho-specific antibodies and buffer compositions that are substantially free of inorganic phosphate.