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Immunoassays: Principles, Applications, and Importance in Biopharma

Immunoassays are powerful analytical tools that use antigen-antibody interactions to detect and measure biological molecules with high precision. In the biopharmaceutical industry, they play a vital role in drug discovery, quality control, and therapeutic monitoring. From ensuring product safety to supporting regulatory compliance, immunoassays are essential for advancing reliable and effective biologics and cell and gene therapies.

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Immunoassays: Principles, Applications, and Importance in Biopharma

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  1. Immunoassays: Principles, Applications, and Importance in Biopharma www.xelleratherapeutics.com

  2. Introduction Immunoassays are analytical techniques used to detect or quantify specific molecules using antigen- antibody interactions. Widely used in diagnostics, vaccine development, and biopharma research. They provide sensitivity, specificity, and accuracy for biological analysis.

  3. Principles of Immunoassays Based on specific binding between an antigen and its antibody. Detection uses labels like enzymes, fluorescent dyes, or radioactive markers. The intensity of the signal correlates with the concentration of the target molecule.

  4. Types of Immunoassays ELISA (Enzyme-Linked Immunosorbent Assay) – most common and versatile. Radioimmunoassay (RIA) – highly sensitive but less used due to radioactivity. Lateral Flow Assays – used in rapid diagnostic tests (like COVID-19 kits). Western Blot & Multiplex Assays – for protein detection and simultaneous analysis.

  5. Applications in Biopharma Used for drug development, biomarker discovery, and clinical diagnostics. Helps monitor immune response in vaccine and therapeutic studies. Ensures batch-to-batch consistency in biologics production.

  6. Contact Us +852 2618 3356 inquiry@xelleratherapeutics.com www.xelleratherapeutics.com Unit1801, 09-16, 18/F, Millennium City 5, 418 Kwun Tong Road, Kowloon, Hong Kong

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