摘要：

compositions and methods for maintaining reservoirs of bioactive agents by chelation of reservoir in a gel matrix.in particular, liposomes containing a bioactive agent in a matrix of a prisoner are chelated gel. the compositions of liposomes and gels are chelated in a gel matrix.the compositions of liposomes and gels that can be used in vivo or in vitro, to allow the release of the bioactive agent is maintained.the gel matrix prevents the dispersion and the release of the liposomes adsorbed without interfering with the ability of liposomes to release the bioactive agent prisoner.in addition, it is possible to modify the rate of release of the bioactive agent in compositions of liposomes and gels in modifying the composition of the liposomes and / or gels.

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