Methods that may be used for the electrochemical detection of multiple parameters, including chemical compounds. Further provided are cells that may be used in the electrochemical detection of multiple parameters, including chemical compounds, as well as a kit for the electrochemical detection of multiple parameters, including chemical compounds.

The invention generally relates to materials and methods for creating and/or utilizing upconverting luminescence. More particularly, the invention relates to novel compositions (e.g., nanoparticles) and related methods of preparation and use that enable upconverting luminescence with an efficient excitation optimized at about 800 nm. A unique class of cascade sensitized tri-doped UCNPs with a biocompatiable 800 nm excitable property are disclosed herein, for example, tri-doped -NaYF.sub.4:Nd, Yb, Er (Tm)/NaYF.sub.4UCNPs, which employ Nd.sup.3+ as 800 nm photon sensitizer and Yb.sup.3+ as bridging ions, having strong green or blue upconversion emissions without photobleaching.

Described herein are methods, systems and kits for conducting an assay for one or more analytes of interest in a sample. In one aspect, a method is provided for conducting a multiplexed binding assay for a plurality of analytes of interest in a sample. In one aspect, the assay includes an analyte binding step and a detection step. In one aspect, the analyte binding step is separated from the detection step.

The present invention provides a method for determining the effect of a drug on a mature cardiomyocyte. In some embodiments, the method comprises using transmembrane voltage and/or intracellular calcium data obtained from control immature cardiomyocytes and those that have been contacted with the drug to parameterize models of immature cardiomyocytes, then applying a maturation matrix to generate a mature cardiomyocyte model. The method is useful for, among other things, predicting whether a drug may have proarrhythmic properties and for determining whether a particular drug should be administered to a patient.

The invention generally relates to materials and methods for creating and/or utilizing upconverting luminescence. More particularly, the invention relates to novel compositions (e.g., nanoparticles) and related methods of preparation and use that enable upconverting luminescence with an efficient excitation optimized at about 800 nm. A unique class of cascade sensitized tri-doped UCNPs with a biocompatible 800 nm excitable property are disclosed herein, for example, tri-doped -NaYF.sub.4:Nd,Yb,Er(Tm)/NaYF.sub.4 UCNPs, which employ Nd.sup.3+ as 800 nm photon sensitizer and Yb.sup.3+ as bridging ions, having strong green or blue upconversion emissions without photobleaching.

The present invention features methods that allow for diagnosing a risk for a patient or subject developing an Autism Spectrum Disorder, for identifying potentially therapeutic anti-ASD agents, and methods for treatment monitoring as specified in the independent claims.

Devices, systems, and methods for detecting molecules of interest within a collected sample are described herein. In certain embodiments, self-contained sample analysis systems are disclosed, which include a reusable reader component, a disposable cartridge component, and a disposable sample collection component. The reader component may communicate with a remote computing device for the digital transmission of test protocols and test results. In various disclosed embodiments, the systems, components, and methods are configured to identify the presence, absence, and/or quantity of particular nucleic acids, proteins, or other analytes of interest, for example, in order to test for the presence of one or more pathogens or contaminants in a sample.

The present invention relates to the use of a control marker for implementing analysis methods on spots, in particular in the context of multiplex analyses. The present invention thus relates to solid supports containing said control marker, their preparation method and their use in analysis methods. The present invention makes it possible to verify the presence, location and/or integrity of the spots at the end of the analysis method, and thus to secure the obtained results while guaranteeing that the yielded result indeed results from a present, intact and localized spot.

The invention relates to novel luminescent compositions of matter containing two fluorophores (sensitizers), synthetic methods for making the compositions, macromolecular conjugates of the compositions, and the use of the compositions and their conjugates in various methods of detection. The invention also provides kits containing the compositions and their conjugates for use in the methods of detection.

Methods of producing light in liquid media are provided using nanoparticles capable of generating electroluminescence when stimulated by an electrical signal. The nanoparticles are provided as a label on a target species or on a specific binding partner of the target species to be detected in a test method. The nanoparticle-labeled species are drawn into operable proximity to electrodes which, when energized by a power source, excite the nanoparticles to produce electroluminescence. Methods of performing binding assays are described using the disclosed methods.