Poly-ε-Caprolactone Microsphere Polymers Containing Usnic Acid: Acute Toxicity and Anti-Inflammatory Activity

Table 1

Encapsulation efficiency, mean particle size , polydispersion (span), and zeta potential of PCL microspheres with (UA-micro) and without usnic acid (PCL microspheres). Results were expressed as mean ± SD.

Drug: polymer	Encapsulation efficiency ± DP (%)	(µm)	Span	Zeta potential  ± DP (mV)
PCL microspheres	—	9.37	2.18	−26.9 ± 0.58
UA-micro	97.72 ± 0,00	13.54	2.36	−44.5 ± 2.95

SD: standard deviation.