Research Article

Biodegradable In Situ Gel-Forming Controlled Drug Delivery System Based on Thermosensitive Poly( -caprolactone)-Poly(ethylene glycol)-Poly( -caprolactone) Hydrogel

Table 1

Samples used in the in vitro drug release study.

No. Concentration of the B12 solution(w/v %)Concentration of the copolymer solution (w/v %)No.Concentration of the naltrexone hydrochloride solution (w/v %)Concentration of the copolymer solution (w/v %)

102011020
202512025
30.120130.120
40.125140.125
50.520150.520
60.525160.525