Journal ArticleDOI
Piezoelectric Effect of Cellulose Nanocrystals Thin Films
Levente Csóka,Levente Csóka,Ingrid Hoeger,Orlando J. Rojas,Orlando J. Rojas,Ilona Peszlen,Joel J. Pawlak,Perry N. Peralta +7 more
TLDR
In this article, ultrathin films of aligned cellulose nanocrystals (CNCs) were assembled on mica supports by using electric field-assisted shear, and the relationship between polarization gradients and strain mechanics of the obtained films was examined by monitoring their deflection with an atomic force microscope operated in contact mode.Abstract:
Ultrathin films of aligned cellulose nanocrystals (CNCs) were assembled on mica supports by using electric field-assisted shear. The relationship between polarization gradients and strain mechanics of the obtained films was examined by monitoring their deflection with an atomic force microscope operated in contact mode. The piezoelectric response of the films was ascribed to the collective contribution of the asymmetric crystalline structure of the cellulose crystals. The magnitude of the effective shear piezoelectric constant (d25) of highly ordered CNC films was determined to be 2.1 A/V, which is comparable to that of a reference film of a piezoelectric metal oxide.read more
Citations
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Nanocellulose, a tiny fiber with huge applications
Tiffany Abitbol,Amit Rivkin,Yifeng Cao,Yuval Nevo,Eldho Abraham,Tal Ben-Shalom,Shaul Lapidot,Oded Shoseyov +7 more
TL;DR: This work discusses the main areas of nanocellulose research: photonics, films and foams, surface modifications, nanocomposites, and medical devices.
Journal ArticleDOI
Nanocellulose properties and applications in colloids and interfaces
Carlos Salas,Tiina Nypelö,Carlos Rodríguez-Abreu,Carlos A. Carrillo,Orlando J. Rojas,Orlando J. Rojas +5 more
TL;DR: In this paper, the authors introduce recent advances in the development of cellulose nanomaterials and the construction of high order structures by applying some principles of colloid and interface science.
Journal ArticleDOI
Advanced Materials through Assembly of Nanocelluloses.
Eero Kontturi,Päivi Laaksonen,Markus Linder,Nonappa,André H. Gröschel,Orlando J. Rojas,Olli Ikkala +6 more
TL;DR: There is an emerging quest for lightweight materials with excellent mechanical properties and economic production, while still being sustainable and functionalizable, which could form the basis of the future bio economy for energy and material efficiency.
Journal ArticleDOI
Recent advances in the application of cellulose nanocrystals
TL;DR: The use and impact of cellulose nanocrystals (CNCs) in three industrial sectors: biomedical, wastewater treatment, energy and electronics are described and discussed, and a perspective on the future and new applications of this sustainable nanomaterial is offered.
Journal ArticleDOI
“Smart” Materials Based on Cellulose: A Review of the Preparations, Properties, and Applications
Xiaoyun Qiu,Shuwen Hu +1 more
TL;DR: This review aims to present the developments of “smart” materials based on cellulose in the last decade, including the preparations, properties, and applications of these materials.
References
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Journal ArticleDOI
Cellulose nanocrystals: chemistry, self-assembly, and applications.
TL;DR: Dr. Youssef Habibi’s research interests include the sustainable production of materials from biomass, development of high performance nanocomposites from lignocellulosic materials, biomass conversion technologies, and the application of novel analytical tools in biomass research.
Journal ArticleDOI
Native cellulose: a composite of two distinct crystalline forms.
TL;DR: Multiplicities in the resonances of chemically equivalent carbons, which appear in the solid-state carbon-13 nuclear magnetic resonance spectra of native celluloses, have been examined at high resolution and are consistent with the existence of two distinct crystalline forms.
Journal ArticleDOI
Electron diffraction study on the two crystalline phases occurring in native cellulose from an algal cell wall
TL;DR: The green alga Microdictyon tenuius exhibits two distinct crystalline phases: the major phase has a one-chain, triclinic (P1) structure with unit cell parameters of a=0.674 nm, b= 0.593 nm, c (chain axis)=1.036 nm, α=117°, β=113°, and γ=81° as mentioned in this paper.
Journal ArticleDOI
Discovery of cellulose as a smart material
TL;DR: In this paper, the authors further expand the current knowledge in cellulose applications and technologies by reporting their discovery of cellulose as a smart material that can be used for biomimetic sensor/actuator devices and micro-electromechanical systems.