Provided herein are materials and methods for performing bioluminescent assays using a bifunctional probe. In particular, the present disclosure provides compositions and methods for detecting and/or quantifying a biomolecule and/or assaying a cellular process associated with the biomolecule using a bifunctional probe capable of binding the biomolecule and generating a bioluminescent and/or fluorescent signal.

A diagnostic agent for use in detecting a target substance in a specimen, including a mixture of: a photosensitizer-loaded particle containing a photosensitizer that generates singlet oxygen during light irradiation; a fluorescent dye-loaded particle containing a fluorescent dye that changes in luminescent characteristics depending on an oxidation reaction with the singlet oxygen; and an aggregation inhibitor that inhibits aggregation of the photosensitizer-loaded particle and the fluorescent dye-loaded particle, characterized in that at least one of the photosensitizer-loaded particle and the fluorescent dye-loaded particle has the property of binding to the target substance, and the surface of the photosensitizer-loaded particles and the surface of the fluorescent dye-loaded particles have a stimulus-responsive polymer, a diagnostic kit for producing the diagnostic agent, and a diagnostic method with the use of a component of the diagnostic agent.

A diagnostic agent for use in detecting a target substance in a specimen, including a mixture of: a photosensitizer-loaded particle containing a photosensitizer that generates singlet oxygen during light irradiation; a fluorescent dye-loaded particle containing a fluorescent dye that changes in luminescent characteristics depending on an oxidation reaction with the singlet oxygen; and an aggregation inhibitor that inhibits aggregation of the photosensitizer-loaded particle and the fluorescent dye-loaded particle, characterized in that at least one of the photosensitizer-loaded particle and the fluorescent dye-loaded particle has the property of binding to the target substance, and the surface of the photosensitizer-loaded particles and the surface of the fluorescent dye-loaded particles have a stimulus-responsive polymer, a diagnostic kit for producing the diagnostic agent, and a diagnostic method with the use of a component of the diagnostic agent.

A specific and sensitive in vitro ELISA assay and diagnostic test kit is disclosed for determining levels of NT-proBNP protein in a variety of bodily fluids, non-limiting examples of which are blood, serum, plasma, urine and the like. The NT-proBNP ELISA assay test employs the sandwich ELISA technique to measure circulating NT-proBNP in human plasma. In order to obtain antibodies with specific binding properties for targeted amino acid sequences within human proBNP, recombinant human proBNP (or rhproBNP) was expressed and purified for use as an immunogen. Polyclonal antibodies (PAb) to specific amino acid sequences were subsequently purified from goat serum by sequential affinity purification. Monoclonal antibodies were raised against specific polypeptides. Recombinant human NT-proBNP (or rhNT-proBNP) was expressed and purified in order to obtain material for use in calibration of a quantitative method for measurement of human NT-proBNP.

The present invention relates to methods and compositions for monitoring, diagnosis, prognosis, and determination of treatment regimens in sepsis patients . In particular, the invention relates to using assays that detect one or more biomarkers selected from the group consisting of Insulin-like growth factor-binding protein 7, Beta-2-glycoprotein 1, Metalloproteinase inhibitor 2, Alpha-1 Antitrypsin, Leukocyte elastase, Serum Amyloid P Component, C—X—C motif chemokine 6, Immunoglobulin A, Immunoglobulin G subclass I, C—C motif chemokine 24, Neutrophil collagenase, Cathepsin D, C—X—C motif chemokine 13, Involucrin, Interleukin-6 receptor subunit beta, Hepatocyte Growth Factor, CXCL-1, -2, -3, Immunoglobulin G subclass II, Metalloproteinase inhibitor 4, C—C motif chemokine 18, Matrilysin, C—X—C motif chemokine 11, and Antileukoproteinase as diagnostic and prognostic biomarker assays of renal injury in the sepsis patient.

The present invention relates to methods and compositions for monitoring, diagnosis, prognosis, and determination of treatment regimens in sepsis patients . In particular, the invention relates to using assays that detect one or more biomarkers selected from the group consisting of Insulin-like growth factor-binding protein 7, Beta-2-glycoprotein 1, Metalloproteinase inhibitor 2, Alpha-1 Antitrypsin, Leukocyte elastase, Serum Amyloid P Component, C—X—C motif chemokine 6, Immunoglobulin A, Immunoglobulin G subclass I, C—C motif chemokine 24, Neutrophil collagenase, Cathepsin D, C—X—C motif chemokine 13, Involucrin, Interleukin-6 receptor subunit beta, Hepatocyte Growth Factor, CXCL-1, -2, -3, Immunoglobulin G subclass II, Metalloproteinase inhibitor 4, C—C motif chemokine 18, Matrilysin, C—X—C motif chemokine 11, and Antileukoproteinase as diagnostic and prognostic biomarker assays of renal injury in the sepsis patient.

The invention relates to an immobilized protein material comprising a protein that is immobilized on a glass material or organic polymer through affinity tag binding. The glass material may be a porous glass material such as (hybrid) controlled porosity glass. The invention also relates to the use of an immobilized enzyme material as a heterogeneous biocatalyst in chemical synthesis. The invention further relates to a method for the immobilization of affinity tagged proteins on a glass material or organic polymer, and to a method for the purification and isolation of affinity tagged proteins by the immobilization of such proteins on a glass material or organic polymer.

The invention relates to an immobilized protein material comprising a protein that is immobilized on a glass material or organic polymer through affinity tag binding. The glass material may be a porous glass material such as (hybrid) controlled porosity glass. The invention also relates to the use of an immobilized enzyme material as a heterogeneous biocatalyst in chemical synthesis. The invention further relates to a method for the immobilization of affinity tagged proteins on a glass material or organic polymer, and to a method for the purification and isolation of affinity tagged proteins by the immobilization of such proteins on a glass material or organic polymer.

A device and system for conducting accurate diagnosis of states of disease or health, including cancer, with high sensitivity and specificity is described. The system employs a portable cassette-based testing system which is configured to detect pp analytes captured by hydrogel particles equipped with affinity bait(s) and an amplification reporter system. The affinity baits bind to a wide range of analytes, including: metabolites, proteins, nucleic acids, lipids, hormones, cytokines, growth factors, biomarkers, virus particles, exosomes, bacteria, fungi, drug compounds, synthetic organic compounds, volatile odorants, toxicants, and pollutants. The affinity baits bind with extremely high affinity, preserving the captured analyte. This system can increase the sensitivity of detection of said analytes up to ten-thousand-fold.

A device and system for conducting accurate diagnosis of states of disease or health, including cancer, with high sensitivity and specificity is described. The system employs a portable cassette-based testing system which is configured to detect pp analytes captured by hydrogel particles equipped with affinity bait(s) and an amplification reporter system. The affinity baits bind to a wide range of analytes, including: metabolites, proteins, nucleic acids, lipids, hormones, cytokines, growth factors, biomarkers, virus particles, exosomes, bacteria, fungi, drug compounds, synthetic organic compounds, volatile odorants, toxicants, and pollutants. The affinity baits bind with extremely high affinity, preserving the captured analyte. This system can increase the sensitivity of detection of said analytes up to ten-thousand-fold.