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Molecules 2003, 8(3), 297-309; doi:10.3390/80300297
Article

Immobilization of 1-[N-(M-Nitrobenzoyl)-α-D,L-Asparagyl]-2-Benzylbenzimidazole on Gellan

1,* , 2 and 1
Received: 27 September 2002 / Revised: 8 March 2003 / Accepted: 10 March 2003 / Published: 31 March 2003
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Abstract

This paper studies the dicyclohexylcarbodiimide activated coupling reaction through ester-type covalent bonds of an oxazolone derived from N-(m-nitrobenzoyl)-L-asparagic acid, ring opened with 2-benzylbenzimidazole, on gellan. Based on a centered, rotatory, composed, second order experimental design, the regression equation describing the dependence of the amount of drug chemically bonded to the support on the reaction parameters is obtained. The efficiency of the coupling reaction over the variation domain established is maximum when the parameters’ highest values are used. The kinetics of the drug’s release from the support are studied under alkaline hydrolysis conditions.
Keywords: Gellan; polymer-drug system; controlled release Gellan; polymer-drug system; controlled release
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Popa, M.; Şunel, V.; Rusu, L.B. Immobilization of 1-[N-(M-Nitrobenzoyl)-α-D,L-Asparagyl]-2-Benzylbenzimidazole on Gellan. Molecules 2003, 8, 297-309.

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