Results 231 to 240 of about 16,441 (267)

Reinforcing Poly(ethylene) with Cellulose Nanocrystals

Macromolecular Rapid Communications, 2014
The fabrication of nanocomposites of low‐density polyethylene (LDPE), one of the world's most widely used polymers, and cellulose nanocrystals (CNCs), which represent the world's most abundant bio‐based nanofiller, is reported. While the hydrophobic polymer and the hydrophilic filler seem to be intrinsically incompatible, this article shows that it is ...
Sapkota Janak, Jorfi Mehdi, Weder Christoph, Foster Earl Johan   +3 more
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Flow induced attrition of cellulose nanocrystals

Carbohydrate Polymers, 2023
To study the potential impacts of shear stress on cellulose nanocrystals (CNCs), a microcapillary rheometer was employed to repeatedly shear approximately 10 mL of 6 wt% aqueous CNC suspension at 25 °C and rates ranging from 1,000 s-1 to 501,000 s-1. A 9 wt% CNC suspension was also tested at 316,000 s-1 for comparison of concentration effects on the ...
Bradley P, Sutliff, Connor, Farrell, Stephen M, Martin, Michael J, Bortner   +3 more
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Functionalization of cellulose nanocrystals for advanced applications

Journal of Colloid and Interface Science, 2017
Replacing the widespread use of petroleum-derived non-biodegradable materials with green and sustainable materials is a pressing challenge that is gaining increasing attention by the scientific community. One such system is cellulose nanocrystal (CNC) derived from acid hydrolysis of cellulosic materials, such as plants, tunicates and agriculture ...
Juntao, Tang, Jared, Sisler, Nathan, Grishkewich, Kam Chiu, Tam   +3 more
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Thermal Degradation of Cellulose Filaments and Nanocrystals

Biomacromolecules, 2020
Cellulose-derived materials, such as microcellulose and nanocellulose, are sustainable materials with a wide range of applications. Here, through a multi-analytical approach, we investigate the thermal degradation of microfibrillar cellulose filaments (CFs); acidic cellulose nanocrystals (CNC-H), containing sulfate half-ester groups on the surface; and
Francesco D’Acierno, Wadood Y. Hamad, Carl A. Michal, Mark J. MacLachlan   +3 more
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Freeze–Thaw Gelation of Cellulose Nanocrystals

ACS Macro Letters, 2019
Gels are attractive for applications in drug delivery, tissue engineering, and 3D printing. Here, physical colloidal gels were prepared by freeze-thaw (FT) cycling of cellulose nanocrystal (CNC) suspensions. The aggregation of CNCs was driven by the physical confinement of CNCs between growing ice crystal domains. FT cycling was employed to form larger
Lev Lewis, Savvas G. Hatzikiriakos, Wadood Y. Hamad, Mark J. MacLachlan   +3 more
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Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films

2017
Solid films prepared from cellulose nanocrystals (CNCs) present remarkable optical properties: iridescence,[1] selective reflection of left circularly polarized (LCP) light, and transmission of right circularly polarized (RCP) light.[2] The same phenomenon has been observed in certain insect cuticles, for example in the Plusiotis batesi as well as in ...
Fernandes, Susete N., Almeida, Pedro L., Monge, Nuno, Aguirre, Luis E., Reis, Dennys, de Oliveira, Cristiano L. P., Neto, António M. F., Pieranski, Pawel, Godinho, Maria H.   +8 more
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CYTOTOXICITY AND CELLULAR UPTAKE OF CELLULOSE NANOCRYSTALS

Nano LIFE, 2012
There is growing evidence that filamentous nanoparticles offer advantages over spherical ones in drug delivery applications. The purpose of this study was to assess the potential of rod-like, plant-derived cellulose nanocrystals (CNCs) for nanomedical uses. Besides a nonspherical morphology, their facile bioconjugation, surface hydrophilicity and small
Dong, Shuping, Hirani, Anjali A., Colacino, Katelyn R., Lee, Yong Woo, Roman, Maren   +4 more
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Rheology of cellulose nanocrystal and nanofibril suspensions

Carbohydrate Polymers
Nanocellulose is a sustainable nanomaterial and a versatile green platform that has attracted increasing attention. Although the wide applications of its aqueous suspensions are closely related to rheology, comprehensive studies of their rheological behavior, especially the yielding behavior, are still limited.
Jiatong, Xu, Pengguang, Wang, Baihua, Yuan, Hongbin, Zhang   +3 more
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Cellulose Nanocrystal Iridescence: A New Model

Langmuir, 2012
A homogeneous aqueous dispersion of cellulose nanocrystals (CNs) that is left to evaporate in a Petri dish self-organizes into smectic liquid crystals that are actually liquid multilamellar structures. As evaporation proceeds, the liquid multilamellar structures solidify to become a solid multilamellar film.
G, Picard, D, Simon, Y, Kadiri, J D, LeBreux, F, Ghozayel   +4 more
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Cellulose nanocrystal research; A personal perspective

Carbohydrate Polymers, 2020
This contribution to the special issue of Carbohydrate Polymers commemorating the 100th Anniversary of the Cellulose and Renewable Materials Division of the American Chemical Society is a personal account, from a research chemist's point of view, of some aspects of the discovery, development and utilization of nanocellulosic materials.
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