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Chirality inversion in colloidal self-assembly
"The chiral self-assembly of nanoscale building blocks offers a scalable route to functional materials, but understanding and controlling this process is a persistent challenge. A notable example is cellulose nanocrystals (CNCs),... "The chiral self-assembly of nanoscale building blocks offers a scalable route to functional materials, but understanding and controlling this process is a persistent challenge. A notable example is cellulose nanocrystals (CNCs), elongated nanoparticles extracted from natural cellulose that assemble into a cholesteric liquid crystal phase in aqueous suspension. This helicoidal self-organisation can be preserved into the solid state to create structurally coloured films, offering a sustainable way to produce next-generation pigments and colourants. However, the CNC cholesteric phase is always found to be left-handed due to the presence of ""bundles"", a sub-population of CNCs that act as colloidal chiral dopants and induce left-handed ordering. Inspired by the naturally-occuring CNC bundles, this project aims to produce cellulose polycrystals (CPCs), a new class of clustered nanoparticles produced by the aggregation of CNCs in the presence of a chiral ""glue"" provided by hemicelluloses. These CPCs will then be used as synthetic chiral dopants to induce a right-handed cholesteric phase in CNCs suspensions for the first time. This inversion of the handedness of CNC self-assembly will result in films that reflect RCP light in the visible range, enabling the creation of structurally-coloured materials with near-ideal optical performance. These findings will deepen our understanding of chiral colloidal self-assembly and open up new avenues of enquiry for research on bio-sourced nanomaterials." ver más
30/04/2026
MPG
174K€
Perfil tecnológico estimado
Duración del proyecto: 24 meses Fecha Inicio: 2024-04-16
Fecha Fin: 2026-04-30

Línea de financiación: concedida

El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-04-16
Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:
HORIZON-MSCA-2023-PF-01-01: MSCA Postdoctoral Fellowships 2023
Cerrada hace 1 año
Presupuesto El presupuesto total del proyecto asciende a 174K€
Líder del proyecto
MAXPLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSE... No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico TRL 4-5