Isolation of cellulose nanocrystals from grain straws and their use for the preparation of carboxymethyl cellulose-based nanocomposite films

2016 ◽  
Vol 150 ◽  
pp. 187-200 ◽  
Author(s):  
Ahmed A. Oun ◽  
Jong-Whan Rhim
Keyword(s):  
Cellulose Nanocrystals ◽  
Carboxymethyl Cellulose ◽  
Nanocomposite Films

scholarly journals Effect of Cellulose Nanocrystals Nanofiller on the Structure and Sorption Properties of Carboxymethyl Cellulose–Glycerol–Cellulose Nanocrystals Nanocomposite Systems

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2900
Author(s):  
Maria-Cristina Popescu ◽  
Bianca-Ioana Dogaru ◽  
Carmen-Mihaela Popescu
Keyword(s):  
Cellulose Nanocrystals ◽  
Carboxymethyl Cellulose ◽  
Gravimetric Method ◽  
Principal Component ◽  
Structural Features ◽  
Correlation Spectroscopy ◽  
Sorption Properties ◽  
Nanocomposite Films ◽  
Biobased Materials ◽  
Carboxylate Groups

Biobased materials present a great interest due to their properties and biodegradability. Cellulose nanocrystals (CNC) nanofiller, in various amounts, was incorporated into a carboxymethyl cellulose (CMC)–glycerol (G) matrix in order to obtain nanocomposite systems with improved properties. The effect of the nanofiller on the structural features was investigated by Fourier transform infrared (FT-IR) spectroscopy, principal component analysis (PCA), two-dimensional correlation spectroscopy (2D-COS), and X-ray diffraction, while the sorption properties were evaluated by water vapor isotherms using the gravimetric method coupled with infrared spectroscopy. We observed the presence of the interactions taking place between the CMC-G and CNC involving the hydroxyl and carboxylate groups, which decreased the number of water sorption sites. Following this, the moisture content in the nanocomposite films decreased with the increase in the amount of CNC. Moreover, the bands associated to water molecules presented different wavenumber values separated for CMC-G and CNC components.

Enhanced functional properties of biodegradable Polyvinyl alcohol /carboxymethyl cellulose (PVA/CMC) composite films reinforced with L-alanine surface modified CuO nanorods

2021 ◽  
Author(s):  
Yamanappagouda Amaregouda ◽  
Kantharaju Kamanna ◽  
Tilak Gasti ◽  
Vijay Kumbar
Keyword(s):  
Polyvinyl Alcohol ◽  
Carboxymethyl Cellulose ◽  
Food Packaging ◽  
Composite Films ◽  
Nanocomposite Films ◽  
Soil Burial ◽  
High Antibacterial Activity ◽  
Active Food Packaging ◽  
Surface Modified ◽  
Cuo Nanorods

Abstract Herein, we described novel biogenic preparation of the CuO nanorods and its surface modification with L-alanine amino acid accelerated by microwave irradiation. The effect of surface functionalized CuO nanorods on the polyvinyl alcohol/carboxymethyl cellulose film physico-mechanical properties were investigated through various characterization techniques. The tensile strength was improved from 28.58 ± 0.73 MPa to 43.40 ± 0.93 MPa, UV shielding ability and barrier to the water vapors were highly enhanced when PVA/CMC matrices filled with 8 wt% of CuO-L-alanine. In addition, the prepared films exhibited acceptable overall migration limit and readily undergoes soil burial degradation. Nevertheless, CuO-L-alanine incorporated films showed potent antioxidant activity against DPPH radicals and had high antibacterial activity against Staphylococcus aureus and Escherichia coli, and antifungal activity against Candida albicans and Candida tropicalis. Furthermore, the nanocomposite films showed negligible cytotoxic effect on HEK293 and Caco-2 cell lines. In these contexts, the developed nanocomposite films can be implementing as an active food packaging material.

scholarly journals Cellulose nanocrystals from grape pomace and their use for the development of starch-based nanocomposite films

2020 ◽  
Vol 159 ◽  
pp. 1048-1061 ◽  
Author(s):  
Caroline Corrêa de Souza Coelho ◽  
Raysa Brandão Soares Silva ◽  
Carlos Wanderlei Piler Carvalho ◽  
André Linhares Rossi ◽  
José António Teixeira ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Grape Pomace ◽  
Nanocomposite Films

scholarly journals Chitosan nanocomposite films incorporating cellulose nanocrystals and grape pomace extracts

2018 ◽  
Vol 31 (9) ◽  
pp. 631-638 ◽  
Author(s):  
Yixiang Xu ◽  
Shakeyla Willis ◽  
Krystle Jordan ◽  
Edward Sismour
Keyword(s):  
Cellulose Nanocrystals ◽  
Grape Pomace ◽  
Nanocomposite Films

scholarly journals Erratum to: Highly transparent nanocomposite films based on polybutylmethacrylate and functionalized cellulose nanocrystals

Cellulose ◽  
2013 ◽  
Vol 20 (4) ◽  
pp. 1725-1725
Author(s):  
Ayman Ben Mabrouk ◽  
Ana Maria Ferraria ◽  
Ana Maria Botelho do Rego ◽  
Sami Boufi
Keyword(s):  
Cellulose Nanocrystals ◽  
Nanocomposite Films

Mechanically strong nanocomposite films based on highly filled carboxymethyl cellulose with graphene oxide

2015 ◽  
Vol 133 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Mounir El Achaby ◽  
Nassima El Miri ◽  
Asmae Snik ◽  
Mohamed Zahouily ◽  
Karima Abdelouahdi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carboxymethyl Cellulose ◽  
Nanocomposite Films
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