Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2005-08-12
2009-11-03
Tran, S. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S009320, C424S489000
Reexamination Certificate
active
07611731
ABSTRACT:
The invention comprises the design, synthesis, and characterization of mesostructured silica/block copolymer composite monoliths as controlled release systems. The controlled release function is based on the formation of mesostructured silica/block copolymer architectures via surfactant-templated sol-gel processing. Multi-layered or gradient monoliths are produced by layer-by-layer sol-gel processing to provide pulsed and programmed release characteristics. A simple, rapid route to prepare combinatorial compositional monolith libraries provides high-throughput synthesis and rapid screening of the release characteristics of the monoliths.
REFERENCES:
patent: 2009/0011002 (2009-01-01), Zabicky et al.
Phillips Mark L. F.
Wyrsta Michael D.
SBA Materials, Inc.
Tran S.
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