A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 38/27 (2006.01) A61K 9/00 (2006.01) A61K 9/20 (2006.01) A61K 38/28 (2006.01) A61M 37/00 (2006.01)
Patent
CA 2022426
27103-51 ABSTRACT An electroresponsive hydrogel produced by alkali hydro- lysis of a copolymer comprising N-isopropylacrylamide, an ionic monomer and a crosslinking agent; and a physiologically active substance release control system comprising a biosensor, an amplifier and an electroresponsive hydrogel containing physiologically active substance are disclosed. The hydrogel of the present invention is capable of releasing a physiolo- gically active substance alone in an amount corresponding to an applied voltage with excellent reproducibility by contracting and reswelling in good response to the loading and unloading of an external stimulation voltage, it can be advantageously used in a physiologically active substance release control system capable of releasing an essential physiologically active substance in a necessary amount accor- ding to changes in physiological conditions. Also, the phy- siologically active substance release control system of the present invention using this hydrogel is useful for the treatment of various diseases including diabetes mellitus.
Kaetsu Isao
Morita Yasushi
Ohtori Akira
Fetherstonhaugh & Co.
Kaetsu Isao
Morita Yasushi
Ohtori Akira
Senju Pharmaceutical Co. Ltd.
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