Ditemukan 1 dokumen yang sesuai dengan query
Siti Sa`diah
"
Chitosan is a natural cationic polymer that is non toxic,
biodegradabel and biocompatibel. This polymer is also able to form
hydrogel in aqueous medium but is only soluble in acidic medium and is
not soluble in basic medium. Therefore why chitosan is not suitable as a
matrix for sustained release dosage form. Chitosan can be modified
phisically and chemically to obtain its optimum useful as a matrix for
sustained release. It is preassumed that cationic properties of chitosan can
form a polyelectrolyte ...
"
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2007
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