After obtaining the target antibody by various methods, in certain cases, to facilitate the observation and detection of the antigen, we typically select easily measurable and highly sensitive substances as labels for antibody conjugation. These labeled antibodies use the amplification effects of the label to detect or quantify the antigen or antibody's properties and concentrations, manifested as color or spectral changes. By utilizing the unique physicochemical properties of the amino acids that compose the antibody, under specific conditions, the antibody binds to the label, forming an antibody label conjugate. Antibody labeling is mainly used for antigen localization analysis and can enhance detection sensitivity through the amplification effect of the label. It is a rapid, cost-effective method for quantitative determination.

Labeling Procedure Diagram

1. Antibody Fluorescent Dye Labeling Service

Unlike enzyme labels, fluorescent dyes are small molecular compounds. Our experienced scientists strictly follow quality control (QC) and quality assurance (QA) protocols to monitor every labeling project. The fluorescent dye labeling services we offer include:

2. Antibody Enzyme Labeling Service

3. Antibody Biotin Labeling Service

Biotin is another commonly used biomolecule for antibody and protein labeling. It has high affinity for the tetrameric chain of avidin, including both avidin and streptavidin. Therefore, biotin is widely used in Western Blot, IHC, and ELISA applications.

-- Strict Quality Control System: Skilled experimental technicians with rich labeling experience and short delivery cycles. 

-- Comprehensive QC and QA Programs: We control every stage of production and offer dual quality assurance for your product.

-- Wide Selection of Tags and Conjugates: With a variety of labels and conjugates available, we provide the most suitable labeling services based on your specific needs.

-- Diverse Purification Techniques: In addition to dialysis, we have a variety of purification systems, including affinity chromatography, ion exchange columns, and hydrophobic interaction chromatography, allowing us to develop a tailored purification plan for your needs.

-- Comprehensive Platform Construction: Conjugated products undergo biochemical and biophysical analysis, with services like MALDI-TOF, ESI, LC-MS, SDS-PAGE, IHC, and enzymatic kinetics analysis to ensure high-quality product production.

-- Complete upstream and downstream services: We offer one-stop technical services ranging from antibody production, recombinant antibody expression, antibody sequencing, to subsequent antibody labeling and modifications, saving valuable time and costs for our customers.