Abstract: In one aspect, a method for detection of a target in a sample based on the change of electrochemical cyclic voltammetry peak profile is provided. The method may involve at least two or more electroactive moieties (EAMs) comprising a transitional metal complex and an anchor group. Said transitional metal complex may be capable of reversibly or semi-reversibly transferring one or more electrons. Said anchor group may allow said EAMs to covalently attach to a solid support, forming a self-assembled monolayer (SAM) on the surface. At least one EAM may further comprises a capture ligand that can be recognized and bound by a target or a surrogate target. When a sample is introduced to an EAM, the interaction between said capture ligand and said target or surrogate target may lead to change of the properties of the SAM containing all EAMs involved. Said change can be detected by an electrochemical detection system.

Abstract: The disclosure also relates to novel compositions and methods for the single, direct detection of Hemoglobin A1c percentage in a sample, using conversion of functional groups attached to a transitional metal complex, resulting in quantifiable electrochemical signal at two unique potentials, Eo1 and Eo2.

Abstract: Methods for predicting the outcome of and monitoring prostate cancer patients using prostate specific antigen (PSA) proteolytic activity (PPA) in combination with other molecular biomarkers or other parameters are described. Methods of determining sets of parameters for use in predicting the outcome of and monitoring of prostate cancer patients are also described.

Abstract: In one aspect, a method for detection of a target in a sample based on the change of electrochemical cyclic voltammetry peak profile is provided. The method may involve at least two or more electroactive moieties (EAMs) comprising a transitional metal complex and an anchor group. Said transitional metal complex may be capable of reversibly or semi-reversibly transferring one or more electrons. Said anchor group may allow said EAMs to covalently attach to a solid support, forming a self-assembled monolayer (SAM) on the surface. At least one EAM may further comprises a capture ligand that can be recognized and bound by a target or a surrogate target. When a sample is introduced to an EAM, the interaction between said capture ligand and said target or surrogate target may lead to change of the properties of the SAM containing all EAMs involved. Said change can be detected by an electrochemical detection system.

Abstract: The invention relates to novel compositions and methods for the detection of analytes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The invention relates to novel compositions and methods for the detection of enzymes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The invention relates to novel compositions and methods for the detection of analytes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The invention relates to novel compositions and methods for the detection of enzymes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The invention relates to novel compositions and methods for the detection of analytes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The disclosure provides for methods to determine prognosis, aggressiveness, and progression of prostate cancer with the ability to differentiate between aggressive and non-aggressive prostate cancer. The method utilizes the differential enzymatic activity in patient samples, for example of enzymatically active prostate specific antigen (PSA) activity, in order to determine the aggressiveness and prognosis of prostate cancer, and monitor the progression of prostate cancer therapy. The invention also encompasses assay platforms (e.g., optical or electrochemical) that specifically detect PSA-triggered peptide cleavage events.

Abstract: The invention relates to novel compositions and methods for the detection of enzymes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The present invention is directed to the diagnosis of cancer associated with enzymatically active PSA in samples.

Abstract: The invention relates to novel compositions and methods for the detection of enzymes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The invention relates to novel compositions and methods for the detection of analytes using the nuclear reorganization energy, ?, of an electron transfer process.

Abstract: The present invention relates to screening methods, compositions, and kits for detecting for the presence or absence of one or more target analytes, e.g. biomolecules, in a sample. In particular, the present invention relates to a method that utilizes reporter oligonucleotides as biochemical barcodes for detecting multiple protein structures or other target analytes in a solution.