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Intragastric floating‐retention drug delivery system (IFRDDS) could effectively prolong drug‐releasing time, achieving a good clinical efficacy of encapsulated drug. In this research, the green amphiphilic resin, shellac was adopted to fabricate a continuous network as the matrix of IFRRDS by their self‐assembly behavior triggered by H+. Meanwhile, the NaHCO3 and hydroxypropyl methyl cellulose (HPMC)...
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