@article{64057,
  abstract     = {{Self-assembly of nanoparticles (NPs) forming unique structures has been investigated extensively over the past few years. However, many self-assembled structures by NPs are irreversible, because they are generally constructed using their suspensions. It is still challenging for NPs to reversibly self-assemble in dry state, let alone of polymeric NPs with general sizes of hundreds of nm. Herein, this study reports a new reversible self-assembly phenomenon of NPs in dry state, forming thermoreversible strip-like supermolecular structures. These novel NPs of around 150 nm are perfluorinated surface-undecenoated cellulose nanoparticles (FSU-CNPs) with a core-coronas structure. The thermoreversible self-assembled structure is formed after drying in the air at the interface between FSU-CNP films and Teflon substrates. Remarkably, the formation and dissociation of this assembled structure are accompanied by a reversible conversion of the surface hydrophobicity, film transparency, and anisotropic properties. These findings show novel feasibility of reversible self-assembly of NPs in dry state, and thereby expand our knowledge of self-assembly phenomenon.}},
  author       = {{Wang, Yonggui and Groszewicz, Pedro B. and Rosenfeldt, Sabine and Schmidt, Hendrik and Volkert, Cynthia A. and Vana, Philipp and Gutmann, Torsten and Buntkowsky, Gerd and Zhang, Kai}},
  journal      = {{Advanced Materials}},
  keywords     = {{nanoparticles, self-assembly, cellulose, core-coronas structure, thermoreversible}},
  pages        = {{1702473}},
  title        = {{{Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State}}},
  doi          = {{10.1002/adma.201702473}},
  year         = {{2017}},
}