Process for encapsulation and encapsulated active material system

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United States of America Patent

PATENT NO 4744933
SERIAL NO

06766214

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Abstract

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Capsules are formed herein a liquified core while avoiding capsule core gelation by adding drops of a solution of either an anionic polymer composition or a cationic polymer composition to a solution of an ionic polymer of opposite charge. The drops contain an active ingredient such as a cell or microorganism capable of producing a biologically active product or can contain a biological or chemical composition. The interface of the ionic polymers form a permeable membrane surrounding the liquid drops.

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Patent Owner(s)

Patent OwnerAddress
MASSACHUSETTS INSTITUTE OF TECHNOLOGYCAMBRIDGE MA 02139

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rha, ChoKyun Boston, MA 34 1002
Rodriguez-Sanchez, Dolores Cambridge, MA 2 245

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