Sandwich Fluorescent Assay
Sandwich Fluorescent ASSAY
The Sandwich Fluorescent Assay AffiKIT combines the specificity of sandwich immunoassays with the sensitivity of fluorescence detection, utilizing engineered affinity reagents such as Affimers. This platform provides a highly sensitive and specific quantitative method for detecting target analytes within complex matrices. Below is a detailed technical overview, including assay content, mechanism, and applications.
Content
Assay Components:
- Capture Reagent (Affinity Molecule): Immobilized on a solid support (e.g., microplate surface, nitrocellulose membrane) and specifically binds the target analyte. In the AffiKIT, this reagent can be an engineered Affimer protein or high-affinity antibody selected for its target-binding properties.
- Target Analyte: The molecule of interest present in the sample, which is captured by the immobilized Affimer.
- Detection Reagent: A second affinity reagent that also specifically binds to the target analyte at a different epitope. This detection reagent is conjugated to a fluorescent label. The use of a fluorescent dye with high quantum yield and photostability ensures sensitive detection of the analyte.
Applications of Sandwich Fluorescent Assay
Clinical Diagnostics:
- Biomarker Quantification: Sensitive detection of protein biomarkers (e.g., cytokines, cardiac markers) in blood or serum samples for early disease diagnosis and monitoring.
Pharmaceutical Research:
- Drug Development: Measurement of drug targets, metabolites, and pharmacodynamic biomarkers in biological samples.
Environmental and Food Safety Testing
- Contaminant Detection: Quantitative measurement of environmental toxins, allergens, or contaminants using specific Affimers tailored for these analytes.
- Quality Control: Monitoring levels of specific proteins or molecules indicative of contamination or adulteration in food products.
The Sandwich Fluorescent Assay AffiKIT represents a powerful and highly specific platform that leverages engineered Affimer technology and fluorescence detection to quantify target analytes across a range of applications. Its dual-recognition sandwich format ensures high specificity, while the fluorescent readout enables sensitive and quantitative analysis. .