Table 2 NTA quantification on S-VLP purified samples over time.

From: Preclinical evaluation of manufacturable SARS-CoV-2 spike virus-like particles produced in Chinese Hamster Ovary cells

Days

VLP particles/mL

Average size (nm)

Median size (nm)

20

4.5 × 1011

143

128

59

4.2 × 1011

128

119

101

4.8 × 1011

110

125