Journal
LANGMUIR
Volume 29, Issue 24, Pages 7509-7514Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la3047774
Keywords
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Funding
- Japan Society for the Promotion of Science (JSPS) [20240047, 22680039]
- Center for Interdisciplinary Research,Tohoku University
- Grants-in-Aid for Scientific Research [22680039] Funding Source: KAKEN
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In this study, we prepared a new associating polymer, ChMaPLL, by the substitution of the poly(L-lysine) moiety with oligosaccharide amylose primer and cholesterol. ChMaPLL formed positively charged polypeptide nanogels (similar to 50 nm) via self-assembly in water. The nanogels showed a secondary structural transition to an alpha-helix structure induced by poly(L-lysine) in response to an increase in pH. Oligosaccharides of the nanogels reacted with the phosphorylase a enzyme. Amylose-conjugated nanogels were obtained by enzymatic polymerization. The elongation of the saccharide chain shielded the positive charge of the nanogels. The multiresponsive polysaccharide-polypeptide hybrid nanogels might prove to be useful in the areas of biotechnology and biomedicine.
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