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Cellulose nanocrystals by acid vapour: towards more effortless isolation of cellulose nanocrystals
Faraday Discussions, 2017Cellulose nanocrystals (CNCs) are topical in materials science but their full potential is yet to be fulfilled because of bottlenecks in the production: the process consumes huge amounts of water, recycling the strong acid catalyst is difficult, and purification steps are cumbersome, particularly with lengthy dialysis.
Sattler, Stefan +5 more
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Spin-Induced Organization of Cellulose Nanocrystals
Biomacromolecules, 2022Cellulose nanocrystals (CNCs) are composed of chiral cellulose units, which form chiral nematic liquid crystals in water that, upon drying, self-assemble to more complex spiral chiral sheets. This secondary structure arrangement is found to change with an external magnetic or electric field.
Hammam Al-Bustami +6 more
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Facile extraction of cellulose nanocrystals
Carbohydrate Polymers, 2019A simple process for extracting cellulose nanocrystals (CNCs) is proposed that only uses high-pressure homogenization (HPH) controlling a process temperature. The proposed process was assessed and compared with normal production through acidic hydrolysis.
Nae-Man Park +3 more
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Antibody Immobilization on Sulfated Cellulose Nanocrystals
Biomacromolecules, 2023Exploiting cellulose nanocrystals' high aspect ratio and tailorable surface for immunological biosensors has been hindered by the relatively limited research on using commonly available sulfated cellulose nanocrystals (CNCs) for antibody immobilization and by the low hydrolytic stability of dried assemblies produced from sulfated CNCs.
Uma M. Nori +5 more
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Cellulose Nanocrystals/Cellulose Core-in-Shell Nanocomposite Assemblies
Langmuir, 2009We report herein for the first time how a co-electrospinning technique can be used to overcome the issue of orienting cellulose nanocrystals within a neat cellulose matrix. A home-built co-electrospinning apparatus was fabricated that was comprised of a high-voltage power supply, two concentric capillary needles, and one screw-type pump syringe ...
Washington Luiz Esteves, Magalhães +2 more
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Cellulose Nanocrystal Submonolayers by Spin Coating
Langmuir, 2007Dilute concentrations of cellulose nanocrystal solutions were spin coated onto different substrates to investigate the effect of the substrate on the nanocrystal submonolayers. Three substrates were probed: silica, titania, and amorphous cellulose. According to atomic force microscopy (AFM) images, anionic cellulose nanocrystals formed small aggregates
Kontturi, E.J. +5 more
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Synthesis and conservation of cellulose nanocrystals
Carbohydrate Polymers, 2020This work deals with the preparation of cellulose nanocrystals (CNC) from microcrystalline cellulose by acid hydrolysis, discusses how their characteristics varied according to the drying technique used for their conservation and analyzes their re-dispersion in water. A stable water dispersion of "rod" or "needle" type CNC (≈5 nm of diameter, 276 nm of
Di Giorgio, Luciana +3 more
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Cellulose nanocrystals: Fundamentals and biomedical applications
Carbohydrate Polymers, 2022The present review explores the recent developments of cellulose nanocrystals, a class of captivating nanomaterials in variety of applications. CNCs are made by acid hydrolysing cellulosic materials like wood, cotton, tunicate, flax fibers by sonochemistry.
Prajakta, Mali, Atul P, Sherje
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Cellulose nanocrystal‐embedded triacetate cellulose composite films
Polymer Composites, 2015The purpose of this study is to introduce cellulose nanocrystal (CNC) to the triacetyl cellulose (TAC) matrix and to evaluate the physical properties of the prepared nanocomposite films. To disperse CNCs in the TAC matrix, the surfaces of nanofillers were chemically modified.
Dah Hee Kim, Young Seok Song
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Nanoengineering the Redispersibility of Cellulose Nanocrystals
Biomacromolecules, 2022Enhancing the redispersibility of dried colloidal particles to yield stable dispersions after rehydration is a persistent challenge in the sustainable processing of nanocelluloses due to hydrogen bonding-induced irreversible aggregation. Programming nanocelluloses, such as cellulose nanocrystals (CNC), with moieties that enable colloidal repulsion ...
Breanna Huntington +2 more
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