Journal ArticleDOI
Cellulose nanofibers prepared by TEMPO-mediated oxidation of native cellulose
TLDR
Never-Dried and once-dried hardwood celluloses were oxidized by a 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated system, and highly crystalline and individualized cellulose nanofibers, dispersed in water, were prepared by mechanical treatment of the oxidized celluloses/water slurries.About:
This article is published in Biomacromolecules.The article was published on 2007-07-13. It has received 2017 citations till now. The article focuses on the topics: Oxidized cellulose & Cellulose.read more
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Nanochitin: Chemistry, Structure, Assembly, and Applications
Long Bai,Liang Li,Marianelly Esquivel,Blaise L. Tardy,Siqi Huan,Xun Niu,Shouxin Liu,Guihua Tang,Yimin Fan,Orlando J. Rojas +9 more
TL;DR: In this paper , the authors discuss recent achievements in the isolation, deconstruction, and fractionation of chitin nanostructures of varying axial aspects (nanofibrils and nanorods) along with methods for their modification and assembly into functional materials.
Journal ArticleDOI
Cellulose-Based Composite Macrogels from Cellulose Fiber and Cellulose Nanofiber as Intestine Delivery Vehicles for Probiotics.
TL;DR: The porous cellulose macrogels prepared by a green and environmental friendly method show potential in the application of fabricating targeted delivery vehicles of bioactive agents.
Journal ArticleDOI
Biorenewable, transparent, and oxygen/moisture barrier nanocellulose/nanochitin-based coating on polypropylene for food packaging applications.
Hoang-Linh Nguyen,Thang Hong Tran,Lam Tan Hao,Hyeonyeol Jeon,Jun Mo Koo,Giyoung Shin,Dong Soo Hwang,Sung Yeon Hwang,Jeyoung Park,Dongyeop X. Oh +9 more
TL;DR: In this article, a layer-by-layer (LbL) deposition of biorenewable nanocellulose and nanochitin was used to reduce the transmission of oxygen and water vapors through polypropylene films.
Journal ArticleDOI
Robust and Flexible Cellulose Nanofiber/Multiwalled Carbon Nanotube Film for High-Performance Electromagnetic Interference Shielding
TL;DR: For the preparation of lightweight and high-performance electromagnetic interference shielding material, the poor dispersion of carbon nanotubes (CNTs) and weak interfacial strength degrade the mec....
Journal ArticleDOI
TEMPO-Mediated Oxidation of Norway Spruce and Eucalyptus Pulps: Preparation and Characterization of Nanofibers and Nanofiber Dispersions
Galina Rodionova,Tsuguyuki Saito,Marianne Lenes,Øyvind Eriksen,Øyvind Weiby Gregersen,Ryota Kuramae,Akira Isogai +6 more
TL;DR: In this article, a 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation of cellulose was investigated and the relationship between formation of these functional groups and the fibrillation yield, light transmittance of the water dispersions and degree of polymerization of the oxidized softwood and hardwood pulps were established.
References
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Journal ArticleDOI
Self-assembly at all scales.
TL;DR: Self-assembling processes are common throughout nature and technology and involve components from the molecular to the planetary scale and many different kinds of interactions.
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Nanometre diameter fibres of polymer, produced by electrospinning
Darrell H. Reneker,Iksoo Chun +1 more
TL;DR: More than 20 polymers, including polyethylene oxide, nylon, polyimide, DNA, polyaramid, and polyaniline, have been electrospun in this paper.
Journal ArticleDOI
Homogeneous suspensions of individualized microfibrils from TEMPO-catalyzed oxidation of native cellulose.
TL;DR: Never-dried native celluloses (bleached sulfite wood pulp, cotton, tunicin, and bacterial cellulose) were disintegrated into individual microfibrils after oxidation mediated by the 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) radical followed by a homogenizing mechanical treatment.
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Effect of reaction conditions on the properties and behavior of wood cellulose nanocrystal suspensions.
TL;DR: Increased acid-to-pulp ratio reduced the dimensions of the nanocrystals thus produced and the critical concentration was increased and the biphasic range became narrower; a suspension made from a bleached kraft eucalyptus pulp gave very similar properties to the softwood nanocrystal suspension when prepared under similar hydrolysis conditions.
Journal ArticleDOI
Polymer nanofibers assembled by electrospinning
TL;DR: Electrospinning is a process by which polymer nanofibers (with diameter lower than 100 nm and lengths up to kilometres) can be produced using an electrostatically driven jet of polymer solution (or polymer melt) as mentioned in this paper.