Quality Control of AAV Production with Cryo-TEM

September 16, 2026

9

min read

Reliable AAV production depends on more than vector yield. Empty or partially filled capsids, damaged particles, aggregation, host-cell debris, and changes in capsid morphology can all affect the quality and consistency of an AAV-based gene therapy.

Cryo-TEM Across the AAV Production Workflow

This white paper examines cryo-TEM as a direct imaging method for AAV production quality control. By preserving viral particles in a near-native, vitrified state, cryo-TEM can distinguish encapsidation states and assess multiple physical attributes from the same dataset. Computational classification can extend the analysis from individual images to particle populations and high-resolution 3D maps.

What You’ll Learn in the White Paper

  • How cryo-TEM identifies empty, partially filled, and full AAV capsids
  • How imaging reveals capsid integrity, aggregation, free DNA, and sample purity
  • How 2D classification supports particle-level analysis
  • How 3D reconstruction can inform capsid engineering and structure-based vector design

Download the white paper to explore where cryo-TEM can support AAV process development, scale-up, comparability, and production quality control.

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