A simple equation for the description of solute release. III. Coupling of diffusion and relaxation

Autor:	Jennifer J. Sahlin, Nicholas A. Peppas
Rok vydání:	1989
Předmět:	Coupling Chemistry Exponent Pharmaceutical Science Relaxation (physics) Thermodynamics Geometric shape Diffusion (business) Controlled release Aspect ratio (image) Exponential function
Zdroj:	International Journal of Pharmaceutics. 57:169-172
ISSN:	0378-5173
DOI:	10.1016/0378-5173(89)90306-2
Popis:	The exponential expression of solute release from polymeric devices can be written in terms of the release mechanism's diffusional and relaxational contributions. The general form of this equation's exponent is related to the geometric shape of the releasing device through its aspect ratio. A methodology is presented for general analysis of the release behavior of controlled release systems using a coupled diffusion/relaxation model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6fe707ce8fd8ef3ab4b3c5215eff242a https://doi.org/10.1016/0378-5173(89)90306-2 Zobrazit plný text záznamu