A Journal of Materials Chemistry article has been highlighted by the ACS Noteworthy Chemistry website. The article “A one-step strategy for thermal- and pH-responsive graphene oxide interpenetrating polymer hydrogel networks” by Shengtong Sun and Peiyi Wu from Fudan University, China, describes a strategy for making interpenetrating PNIPAM hydrogel networks containing graphene oxide. The cross-linking reaction is highly efficient, resulting in a hydrogel network with better mechanical strength and a two-level structural hierarchy. The hydrogel is also pH-sensitive due to the existence of residual carboxyl groups. (Shengtong Sun and Peiyi Wu, J. Mater. Chem., 2011, 21, 4095-4097.)
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