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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),... ver más

30/04/2026

MPG

174K€

Presupuesto del proyecto: 174K€

Líder del proyecto

MAXPLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 3 Participantes

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-04-16

HORIZON-MSCA-2023-PF-01-01: MSCA Postdoctoral Fellowships 2023 ExpectedOutcome:Project results are expected to contribute to the following outcomes:

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3 Participantes

MPG

173.85K€ | Lider

UNIVERSITY OF MICHIGAN THE R...

N.D. | Participante

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Duración del proyecto: 24 meses Fecha Inicio: 2024-04-16
Fecha Fin: 2026-04-30

Líder del proyecto

MAXPLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 174K€

Descripción del proyecto "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."

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