Catalyst-mediated yet catalyst-free hydrogels formed by interfacial chemical activation.
We introduce an entirely new method for forming hydrogels, wherein the formation is triggered by a catalyst, but the resulting hydrogels are catalyst-free. We unexpectedly found that a sufficient amount of crosslinkable catecholquinone/semiquinone free radicals is generated by the physical contact between catechol-containing polymers and surface-immobilized catalysts.
Department of Chemistry, KAIST Institute NanoCentury (CNiT), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea. haeshin@kaist.ac.kr.
Eunkyoung
E
Byun
Ji Hyun
JH
Ryu
Haeshin
H
Lee
D000818:Animals; D002384:Catalysis; D002396:Catechols / Q000737:chemistry*; D002470:Cell Survival / Q000187:drug effects; D048271:Chitosan / Q000737:chemistry*; D005609:Free Radicals / Q000737:chemistry; D006427:Hemin / Q000737:chemistry*; D020100:Hydrogels / Q000138:chemical synthesis* / Q000494:pharmacology; D051379:Mice; D041681:NIH 3T3 Cells; D011092:Polyethylene Glycols / Q000737:chemistry; D011809:Quinones / Q000737:chemistry
D002396:Catechols; D005609:Free Radicals; D020100:Hydrogels; D011809:Quinones; D011092:Polyethylene Glycols; D006427:Hemin; D048271:Chitosan; C034221:catechol