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Applications of functionalized and nanoparticle-modified nanocrystalline cellulose.

Trends in biotechnology (2012-03-13)
Edmond Lam, Keith B Male, Jonathan H Chong, Alfred C W Leung, John H T Luong
ABSTRACT

Nanocrystalline cellulose (NCC), a rod-shaped nanoscale material with exceptional strength and physicochemical properties, can be prepared from inexpensive renewable biomass. Besides its potential use as a reinforcing agent for industrial biocomposites, pristine NCC exhibits low toxicity and poses no serious environmental concerns, providing impetus for its use in bioapplications. Here, we review recent developments in the use of modified NCC for emerging bioapplications, specifically enzyme immobilization, antimicrobial and medical materials, green catalysis, biosensing and controlled drug delivery. We focus on the modification of NCC with chemical functionalities and inorganic nanoparticles, reviewing practical considerations such as reusability, toxicity and scale-up capability.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
α-Cellulose, BioReagent, suitable for insect cell culture
Sigma-Aldrich
α-Cellulose, powder
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Sigmacell Cellulose, Type 20, 20 μm
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Sigmacell Cellulose, Type 101, Highly purified, fibers
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Sigmacell Cellulose, Type 50, 50 μm
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Cellulose, colloidal, microcrystalline
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Cellulose, microcrystalline, powder
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Cellulose, microcrystalline, powder, 20 μm
Supelco
Cellulose, acid washed, powder, for column chromatography
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Sigma-Aldrich
Avicel® PH-101, tested according to Ph. Eur.
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Cellulose, DS-0, powder, suitable for thin layer chromatography (TLC)
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Avicel® PH-101, ~50 μm particle size
Supelco
Cellulose, acid washed, from spruce, for column chromatography
Sigma-Aldrich
Cellulose, fibers, (medium)
Supelco
Cellulose, powder, for column chromatography