Bidimensional lamellar assembly by coordination of peptidic homopolymers to platinum nanoparticles

Ghada Manai, Hend Houimel, Mathilde Rigoulet, Angélique Gillet, Pier-Francesco Fazzini, Alfonso Ibarra, Stéphanie Balor, Pierre Roblin, Jérôme Esvan, Yannick Coppel, Bruno Chaudret, Colin Bonduelle () and Simon Tricard ()
Additional contact information
Ghada Manai: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Hend Houimel: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Mathilde Rigoulet: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Angélique Gillet: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Pier-Francesco Fazzini: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Alfonso Ibarra: Instituto de Nanociencia de Aragón, Universidad de Zaragoza
Stéphanie Balor: Plateforme de Microscopie Électronique Intégrative, Centre de Biologie Intégrative, CNRS, Université de Toulouse
Pierre Roblin: Laboratoire de Génie Chimique, Fédération Fermat, INPT, CNRS, Université de Toulouse
Jérôme Esvan: Institut Carnot – Centre Inter-universitaire de Recherche et d’Ingénierie des Matériaux, INP-ENSIACET, CNRS, Université de Toulouse
Yannick Coppel: Laboratoire de Chimie de Coordination, CNRS, Université de Toulouse
Bruno Chaudret: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse
Colin Bonduelle: Laboratoire de Chimie de Coordination, CNRS, Université de Toulouse
Simon Tricard: Laboratoire de Physique et Chimie des Nano-Objets, INSA, CNRS, Université de Toulouse

Nature Communications, 2020, vol. 11, issue 1, 1-7

Abstract: Abstract A key challenge for designing hybrid materials is the development of chemical tools to control the organization of inorganic nanoobjects at low scales, from mesoscopic (~µm) to nanometric (~nm). So far, the most efficient strategy to align assemblies of nanoparticles consists in a bottom-up approach by decorating block copolymer lamellae with nanoobjects. This well accomplished procedure is nonetheless limited by the thermodynamic constraints that govern copolymer assembly, the entropy of mixing as described by the Flory–Huggins solution theory supplemented by the critical influence of the volume fraction of the block components. Here we show that a completely different approach can lead to tunable 2D lamellar organization of nanoparticles with homopolymers only, on condition that few elementary rules are respected: 1) the polymer spontaneously allows a structural preorganization, 2) the polymer owns functional groups that interact with the nanoparticle surface, 3) the nanoparticles show a surface accessible for coordination.

Date: 2020
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DOI: 10.1038/s41467-020-15810-y

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