Fabrication of a highly elastic nanocomposite hydrogel by surface modification of cellulose nanocrystals

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13878-13885 ◽  
Author(s):  
Dong Yang ◽  
Xinwen Peng ◽  
Linxin Zhong ◽  
Xuefei Cao ◽  
Wei Chen ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Hydrogel ◽  
Efficient Strategy ◽  
Nanocomposite Hydrogels

A new and efficient strategy was first employed to fabricate highly elastic nanocomposite hydrogels by surface modification of cellulose nanocrystals.

scholarly journals Chitosan Hydrogels Crosslinked by Genipin and Reinforced with Cellulose Nanocrystals: Production and Characterization

2019 ◽  
Vol 3 (3) ◽  
pp. 84 ◽  
Author(s):  
Andréia Aparecida do Nascimento Pomari ◽  
Thaís Larissa do Amaral Montanheiro ◽  
Cristiane Pereira de Siqueira ◽  
Rodrigo Sousa Silva ◽  
Dayane Batista Tada ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Crosslinking Agent ◽  
Nanocomposite Hydrogel ◽  
Compression Tests ◽  
Sem Images ◽  
Force Microscopy ◽  
Nanocomposite Hydrogels ◽  
Atomic Force ◽  
Significant Difference ◽  
Chitosan Hydrogels

In this work, chitosan hydrogels crosslinked with genipin and reinforced with cellulose nanocrystals (CNC) were developed and characterized with the aim of future biomedical applications. CNC was produced by acid hydrolysis and characterized by atomic force microscopy (AFM). Chitosan/CNC nanocomposite hydrogels were produced with different CNC concentrations (w/w): 0%, 2%, 4%, and 6%. The genipin was used as a crosslinking agent in a genipin/chitosan molar proportion of 1:8. The hydrogels were characterized by porosity measurements, scanning electron microscopy (SEM), swelling test, and mechanical compression test. No significant differences were observed concerning the porosity of the hydrogels; however, a trend of decreasing porosity was observed with increasing CNC content. The SEM images showed a better pore structure as the CNC concentration increased. A decrease in the swelling degree with increasing CNC content in the chitosan/CNC nanocomposite hydrogel was verified in the swelling tests. An increase in the CNC concentration in the chitosan/CNC nanocomposite hydrogel caused a gradual increase in the maximum stress and maximum strain as observed in the compression tests, showing a significant difference between chitosan/CNC 6 wt % and neat chitosan hydrogel.

scholarly journals Surface modification of cellulose nanocrystals

Nanoscale ◽  
2014 ◽  
Vol 6 (14) ◽  
pp. 7764-7779 ◽  
Author(s):  
Samuel Eyley ◽  
Wim Thielemans
Keyword(s):  
Surface Modification ◽  
Cellulose Nanocrystals ◽  
Nanocrystalline Cellulose ◽  
Chemical Modifications

This review takes an in-depth look at the chemical modifications that have been carried out on nanocrystalline cellulose.

Surface modification by graphene oxide: An efficient strategy to improve the performance of activated carbon based supercapacitors

2017 ◽  
Vol 28 (12) ◽  
pp. 2285-2289 ◽  
Author(s):  
Weishi Du ◽  
Yaokang Lv ◽  
Hongliang Lu ◽  
Zaihua Chen ◽  
Dominic S. Wright ◽  
...  
Keyword(s):  
Surface Modification ◽  
Graphene Oxide ◽  
Activated Carbon ◽  
Efficient Strategy ◽  
Carbon Based

All-in-One Cellulose Nanocrystals for 3D Printing of Nanocomposite Hydrogels

2018 ◽  
Vol 130 (9) ◽  
pp. 2377-2380 ◽  
Author(s):  
Jieping Wang ◽  
Annalisa Chiappone ◽  
Ignazio Roppolo ◽  
Feng Shao ◽  
Erika Fantino ◽  
...  
Keyword(s):  
3D Printing ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Hydrogels

Non‐Covalent Polymer Surface Modification of Cellulose Nanocrystals Using Block Copolymers

2021 ◽  
pp. 2100046
Author(s):  
Olga Lidia Torres‐Rocha ◽  
Sophie Campbell ◽  
Nicole Woodcock ◽  
Julien Pinaud ◽  
Patrick Lacroix‐Desmazes ◽  
...  
Keyword(s):  
Surface Modification ◽  
Block Copolymers ◽  
Cellulose Nanocrystals ◽  
Polymer Surface ◽  
Polymer Surface Modification

scholarly journals Surface Modification of Cured Inorganic Foams with Cationic Cellulose Nanocrystals and Their Use as Reactive Filter Media for Anionic Dye Removal

2020 ◽  
Vol 12 (24) ◽  
pp. 27745-27757
Author(s):  
Tuula Selkälä ◽  
Terhi Suopajärvi ◽  
Juho Antti Sirviö ◽  
Tero Luukkonen ◽  
Paivo Kinnunen ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cellulose Nanocrystals ◽  
Dye Removal ◽  
Filter Media ◽  
Anionic Dye

Isolation and surface modification of cellulose nanocrystals from sugarcane bagasse waste: From a micro- to a nano-scale view

2018 ◽  
Vol 436 ◽  
pp. 1113-1122 ◽  
Author(s):  
F.V. Ferreira ◽  
M. Mariano ◽  
S.C. Rabelo ◽  
R.F. Gouveia ◽  
L.M.F. Lona
Keyword(s):  
Surface Modification ◽  
Sugarcane Bagasse ◽  
Cellulose Nanocrystals ◽  
Nano Scale ◽  
Bagasse Waste
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