[Determination of contact angle of pharmaceutical excipients and regulating effect of surfactants on their wettability].

Autor: Hua DD, Li HR, Yang BX, Song LN, Liu TT, Cong YT, Li SM
Jazyk: čínština
Zdroj: Yao xue xue bao = Acta pharmaceutica Sinica [Yao Xue Xue Bao] 2015 Oct; Vol. 50 (10), pp. 1342-5.
Abstrakt: To study the effects of surfactants on wettability of excipients, the contact angles of six types of surfactants on the surface of two common excipients and mixture of three surfactants with excipients were measured using hypsometry method. The results demonstrated that contact angle of water on the surface of excipients was associated with hydrophilcity of excipients. Contact angle was lowered with increase in hydrophilic groups of excipient molecules. The sequence of contact angle from small to large was starch < sodium benzoate < polyvinylpyrrolidone < sodium carboxymethylcellulose < sodium alginate < chitosan < hydroxypropyl methyl cellulose
Databáze: MEDLINE