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Comparing analytical approaches for AAV characterization (2026)

AAV sample characterization is a critical step in research, development and manufacturing processes of gene therapies involving these viral vectors (Figure 1). There are several analytical approaches available to assess critical quality attributes (CQAs) for AAV samples, such as capsid content (empty/full ratios) and titer.

Upstream AAV characterization powered by mass photometry

Gael with SamuxMP

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies

TE2026 - Top Employers Certificate United Kingdom Refeyn Ltd

Refeyn Ltd recognized as a Top Employer for 2026 in the UK

Mass photometry measurements showing complexes formed by ivonescimab when mixed with VEGF in different proportions.

Eight ways mass photometry is accelerating biological discovery

Dr. Susan Altschuller

Refeyn announces appointment of Non-Executive Director

Natalia Markova

Refeyn welcomes Natalia Markova to Scientific Advisory Board

Making sense of mass photometry measurements (2025)

Mass photometry is a novel way to measure the mass of biomolecules. It works by quantifying the light scattered by an individual molecule in solution, which is directly proportional to the molecule’s mass [1], [2] (read more about how mass photometry works).

Transforming adenovirus (AdV) vector analysis with macro mass photometry