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Abstract
From drying blood to oil paint, the developing of a glassy phase from colloids is observed on a daily basis. Colloidal glass is solid soft matter that consists of two intertwined phases: a random packed particle network and a fluid solvent. By dispersing charged rod-like cellulose nanoparticles into a water-ethylene glycol cosolvent, here we demonstrate a new kind of colloidal glass with a high liquid crystalline order, namely, two general superstructures with nematic and cholesteric packing states are preserved and jammed inside the glass matrix. During the glass formation process, structural arrest and phase transition occur simultaneously at high particle concentrations, yielding solid-like behavior as well as a frozen liquid crystal texture that is because of caging of the charged colloids through neighboring long-ranged repulsive interactions.
Original language | English |
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Pages (from-to) | 979-985 |
Number of pages | 7 |
Journal | Langmuir : the ACS journal of surfaces and colloids |
Volume | 36 |
Issue number | 4 |
DOIs | |
Publication status | Published - 4 Feb 2020 |
MoE publication type | A1 Journal article-refereed |
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BioELCell: Bioproducts Engineered from Lignocelluloses: from plants and upcycling to next generation materials
Rojas Gaona, O., Abidnejad, R., Ajdary, R., Bhattarai, M., Garcia Greca, L., Klockars, K., Dufau Mattos, B., Majoinen, J., Ressouche, E., Robertson, D., Reyes Torres, G., Johansson, L., Kämäräinen, T., Zhu, Y., Zhao, B. & Tardy, B.
30/07/2018 → 31/07/2023
Project: EU: ERC grants
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CERES: Competence Center for the materials Bioeconomy: A Flagship for our Sustainable Future
01/05/2018 → 31/12/2022
Project: Academy of Finland: Other research funding