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. 2014 May 7;9:1957–1965. doi: 10.2147/IJN.S57048

Table 1.

Effects of surfactant ratio of Tween 80 to Span 80 on the particle size and encapsulation efficiency of BSA-loaded microspheres

Ratio of Tween 80 to Span 80 (v/v) Particle size (μm) Encapsulation efficiency (%)
4:1 70.6±2.2 38.5±1.2
7:3 68.5±1.6 43.7±2.1
3:2 65.7±2.1 46.9±2.2

Note: The data are reported as mean ± standard deviation.

Abbreviation: v/v, volume/volume.