Volume 13, Issue 6 pp. 687-695
Full Paper

Gelatin-Alginate Gels and Their Enzymatic Modifications: Controlling the Delivery of Small Molecules

Marie-Cécile Klak

Marie-Cécile Klak

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, France

Maia Woundcare 1, mail Gay Lussac 95000 CergyPontoise, France

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Elodie Lefebvre

Elodie Lefebvre

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, France

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Laure Rémy

Laure Rémy

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, France

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Rémy Agniel

Rémy Agniel

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, France

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Julien Picard

Julien Picard

Maia Woundcare 1, mail Gay Lussac 95000 CergyPontoise, France

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Sébastien Giraudier

Sébastien Giraudier

Maia Woundcare 1, mail Gay Lussac 95000 CergyPontoise, France

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Véronique Larreta-Garde

Corresponding Author

Véronique Larreta-Garde

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, France

ERRMECe Lab., Université de Cergy-Pontoise, i-MAT, PRES UPGO, BP222–95000 Cergy Pontoise, FranceSearch for more papers by this author
First published: 19 February 2013
Citations: 29

Abstract

The release of molecules entrapped within biogels is dictated by diffusion laws. Innovative biogel architectures are conceived and tested to control small molecule delivery from gelatin gels. The ionic interactions modulate the release of small molecules. Alginate is then added to gelatin gels and further hydrolyzed; the influence of viscosity is discussed. Next, various mixed gels are compared, such as a gelatin-alginate IPN and the original architecture of an alginate gel entrapped in a gelatin gel with or without a polysaccharidase. The relative influence of ionic interactions and diffusional constraints on the delivery of small charged molecules is explored, and a solution for controlling diffusion is proposed for any situation.

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