Houston Stephen Smith,Matthew J. Fischer,Graciela B. Arhancet,Rangarani Karnati,John A. Hume,Xiaojun Wang
申请号：
US14413540
公开号：
US09452143B2
申请日:
2013.07.11
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The invention relates to matrix and layer compositions comprising a first polymer. The matrix and layer compositions are useful in the delivery of bioactives. In particular, the matrices and layers may have advantageous properties including mechanical properties and protection of bioactives and may also provide for pH-dependent release of a bioactive.
