Abstract: Provided is an assay for determining the protein, polypeptide, and peptides degradation of a sample. The assay for determining the protein, polypeptide, and peptides degradation of a sample includes contacting the sample with a non-fluorescent compound whereby the non-fluorescent compound reacts with free primary amine in the sample from degradation of protein, polypeptide, and peptides in the sample producing a fluorescent signal to thereby measure the increase in protein, polypeptide, and peptides fragments in the sample and comparing the fluorescent signal to a standard to thereby quantify the amount of protein, polypeptide, and peptides degradation. By taking the ratio of this increase to protein concentrations measured using standard protein assays a sensitive measure of protein degradation is obtained.

Abstract: Two-dimensional and/or three-dimensional polymeric or extended solid arrays, such as arrays of a polydiacetylene backbone, are used to evaluate the organic/water partition coefficient or oral absorptivity or transcellular permeability of a compound by monitoring the change in the fluorescence or phosphorescence of the array upon exposure to the compound and comparing it to a known change in fluorescence or phosphorescence, respectively. The method can also be used to evaluate the ability of a compound to bind to a protein.

Abstract: Two-dimensional and three-dimensional arrays of a polydiacetylene backbone having a substrate incorporated are used in chemical sensing methods to detect the interaction of an analyte with the substrate by monitoring the change in the fluorescence of the array.

Abstract: Two-dimensional and three-dimensional arrays of a polydiacetylene backbone having a substrate incorporated are used in chemical sensing methods to detect the interaction of an analyte with the substrate by monitoring the change in the fluorescence of the array.

Abstract: Two-dimensional and/or three-dimensional polymeric or extended solid arrays, such as arrays of a polydiacetylene backbone, are used to evaluate the organic/water partition coefficient and/or oral absorptivity and/or transcellular permeability of a compound by monitoring the change in the fluorescence or phosphorescence of the array upon exposure to the compound and comparing it to a known change in fluorescence or phosphorescence, respectively. The method can also be used to evaluate the ability of a compound to bind to a protein.

Abstract: Two-dimensional and three-dimensional arrays of a polydiacetylene backbone having a substrate incorporated are used in chemical sensing methods to detect the interaction of an analyte with the substrate by monitoring the change in the fluorescence of the array.