Fabrication of nanocellulose-hydroxyapatite composites and their application as water-resistant transparent coatings

Mai Ishikawa; Yuya Oaki; Yoshihisa Tanaka; Hideki Kakisawa; German Salazar-Alvarez; Hiroaki Imai

doi:10.1039/c5tb00927h

Fabrication of nanocellulose-hydroxyapatite composites and their application as water-resistant transparent coatings

Mai Ishikawa, Yuya Oaki, Yoshihisa Tanaka, Hideki Kakisawa, German Salazar-Alvarez, Hiroaki Imai

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

Nanosized composite rods ∼300 nm in length and ∼20 nm in width were produced by deposition of 22-77 wt% of a c-axis-oriented hydroxyapatite (HA) on cellulose nanocrystals (CNCs). The CNCs functionalized with sulphonic groups were covered with the HA nanocrystals through controlled nucleation and growth under a moderately supersaturated condition in a solution system based on a simulated body fluid. Water-resistant transparent coatings 2-4 μm thick were obtained via evaporation-induced assembly of CNC-HA nanocomposites by casting their suspension on a glass substrate and the subsequent growth of HA nanocrystals by vapour hydrothermal treatment. The composite coatings exhibited improved mechanical strength compared to that of crustacean exoskeletons, and potential for bone regeneration.

Original language	English
Pages (from-to)	5858-5863
Number of pages	6
Journal	Journal of Materials Chemistry B
Volume	3
Issue number	28
DOIs	https://doi.org/10.1039/c5tb00927h
Publication status	Published - 2015 Jul 28

ASJC Scopus subject areas

Chemistry(all)
Biomedical Engineering
Materials Science(all)

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abstract = "Nanosized composite rods ∼300 nm in length and ∼20 nm in width were produced by deposition of 22-77 wt% of a c-axis-oriented hydroxyapatite (HA) on cellulose nanocrystals (CNCs). The CNCs functionalized with sulphonic groups were covered with the HA nanocrystals through controlled nucleation and growth under a moderately supersaturated condition in a solution system based on a simulated body fluid. Water-resistant transparent coatings 2-4 μm thick were obtained via evaporation-induced assembly of CNC-HA nanocomposites by casting their suspension on a glass substrate and the subsequent growth of HA nanocrystals by vapour hydrothermal treatment. The composite coatings exhibited improved mechanical strength compared to that of crustacean exoskeletons, and potential for bone regeneration.",

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AU - Ishikawa, Mai

AU - Oaki, Yuya

AU - Tanaka, Yoshihisa

AU - Kakisawa, Hideki

AU - Salazar-Alvarez, German

AU - Imai, Hiroaki

PY - 2015/7/28

Y1 - 2015/7/28

N2 - Nanosized composite rods ∼300 nm in length and ∼20 nm in width were produced by deposition of 22-77 wt% of a c-axis-oriented hydroxyapatite (HA) on cellulose nanocrystals (CNCs). The CNCs functionalized with sulphonic groups were covered with the HA nanocrystals through controlled nucleation and growth under a moderately supersaturated condition in a solution system based on a simulated body fluid. Water-resistant transparent coatings 2-4 μm thick were obtained via evaporation-induced assembly of CNC-HA nanocomposites by casting their suspension on a glass substrate and the subsequent growth of HA nanocrystals by vapour hydrothermal treatment. The composite coatings exhibited improved mechanical strength compared to that of crustacean exoskeletons, and potential for bone regeneration.

AB - Nanosized composite rods ∼300 nm in length and ∼20 nm in width were produced by deposition of 22-77 wt% of a c-axis-oriented hydroxyapatite (HA) on cellulose nanocrystals (CNCs). The CNCs functionalized with sulphonic groups were covered with the HA nanocrystals through controlled nucleation and growth under a moderately supersaturated condition in a solution system based on a simulated body fluid. Water-resistant transparent coatings 2-4 μm thick were obtained via evaporation-induced assembly of CNC-HA nanocomposites by casting their suspension on a glass substrate and the subsequent growth of HA nanocrystals by vapour hydrothermal treatment. The composite coatings exhibited improved mechanical strength compared to that of crustacean exoskeletons, and potential for bone regeneration.

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Fabrication of nanocellulose-hydroxyapatite composites and their application as water-resistant transparent coatings

Abstract

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