Particle occupancy in mRNA lipid nanoparticles: Measurement, manufacturing determinants, and relevance to product quality
Academic source · Journal of Pharmaceutical Sciences
Source published:
Site published: 2026-11-03 · Updated: 2026-11-03
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What the paper reports
A minireview distinguishes bulk encapsulation efficiency from particle occupancy and RNA copy-number distributions. High encapsulation efficiency can coexist with RNA-negative particles, and process changes may alter loading without changing average size. The author cautions that eliminating empty particles does not necessarily improve activity; product-specific evidence must establish whether occupancy is a critical quality attribute.
Why this paper is included
Particle-level measurements could strengthen characterization and comparability, but routine specifications need validated methods and a demonstrated relationship to product performance.
The interpretation above is analysis, not a conclusion attributed to the original source.
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