Macromolecular bridging-enhanced holey graphene oxide-based film and its humidity deformation response.

ABSTRACT: The interaction of water molecules with graphene oxide (GO) at the interface or surface will lead to the reversible deformation response of GO-based materials. However, the fabrication of structurally stable and highly sensitive GO-based humidity-responsive films remains a challenge. Since the stability and sensitivity of GO-based humidity-responsive devices are significantly limited by the deformation differences between different components. Herein, we demonstrate that polyamidoamine (PAMAM) bridge-enhanced carboxylated holey GO (hGC/PAMAM) films are sensitive to moisture and exhibit excellent stability in water. Experiments and molecular dynamics (MD) simulation show that the formation of N-C=O between PAMAM and GO sheets significantly increased the interlayer bonding force. Dynamic mon

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC9676405 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature