Johanna MAJOINEN

Department of Applied Physics (Aalto University - FINLANDE)

Johanna MAJOINEN

Department of Applied Physics (Aalto University - FINLANDE)

Résumé

Cryo-Electron Microscopy and Electron Tomography of Cellulose Nanocrystals in Supracolloidal Systems

Modern technology requires sustainable solutions for future raw materials and applications. Nanocelluloses, namely cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) are of particular interest as renewable, widely available, and highly functionalizable nanosized raw materials. Transmission electron microscopy and electron tomography have revealed novel insight on basic CNC properties and their further use in applications. In this talk, the fundamental properties of CNCs and their use in synthetic and colloidal self-assembly concepts for novel functional materials are discussed. In particular, supracolloidal self-assembled CNC-based materials utilizing dendronized polymers, cationic gold nanoparticles and interpolyelectrolyte complexation of block copolymers are presented with emphasis on characterization with transmission electron microscopy and electron tomography.

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