Journal ArticleDOI
Chemistry and Applications of Nanocrystalline Cellulose and its Derivatives: a Nanotechnology Perspective
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Nanocrystalline cellulose (NCC) is an emerging renewable nanomaterial that holds promise in many different applications, such as in personal care, chemicals, foods, pharmaceuticals, etc as discussed by the authors.Abstract:
Nanocrystalline cellulose (NCC) is an emerging renewable nanomaterial that holds promise in many different applications, such as in personal care, chemicals, foods, pharmaceuticals, etc. By appropriate modification of NCC, various functional nanomaterials with outstanding properties, or significantly improved physical, chemical, biological, as well as electronic properties can be developed. The nanoparticles are stabilised in aqueous suspension by negative charges on the surface, which are produced during the acid hydrolysis process. NCC suspensions can form a chiral nematic ordered phase beyond a critical concentration, i.e. NCC suspensions transform from an isotropic to an anisotropic chiral nematic liquid crystalline phase. Due to its nanoscale dimension and intrinsic physicochemical properties, NCC is a promising renewable biomaterial that can be used as a reinforcing component in high performance nanocomposites. Many new nanocomposite materials with attractive properties were obtained by the physical incorporation of NCC into a natural or synthetic polymeric matrix. Simple chemical modification on NCC surface can improve its dispersability in different solvents and expand its utilisation in nano-related applications, such as drug delivery, protein immobilisation, and inorganic reaction template. This review paper provides an overview on this emerging nanomaterial, focusing on the surface modification, properties and applications of NCC.read more
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Dissertation
Cellulose solutions: Dissolution, regeneration, solution structure and molecular interactions
TL;DR: Tese de doutoramento em Quimica, na especialidade de quimica macromolecular, apresentada a Faculdade de Ciencias e Tecnologia da Universidade da Coimbra, Portugal, was presented by.
Book ChapterDOI
Markets and Market Forces for Secondary Wood Products
Urs Buehlmann,Al Schuler +1 more
TL;DR: The United States has been the leading net importer of goods and services for the last 40 years with the nation’s trade deficit in 2011 settling at $560 billion (down from a record $753 billion in 2006; U.S. Census Bureau 2012).
Journal ArticleDOI
Dielectric barrier discharge plasma treatment of cellulose nanofibre surfaces
TL;DR: In this article, a dielectric barrier discharge plasma treatment was applied to modify cellulose nanofibre (CNF) surfaces with and without ultrasonic irradiation, which improved the wetting by deionised water and glycerol, and increased the contents of oxygen, carbonyl group, and carboxyl group on the nanibre surface.
Journal ArticleDOI
Enhancement of fibroblast growing on the mannosylated surface of cellulose membranes
Simone Birkheur,Paula C. S. Faria-Tischer,Cesar A. Tischer,Elisângela F. Pimentel,Marcio Fronza,Denise Coutinho Endringer,Anna Paola Butera,Renato Ribeiro-Viana +7 more
TL;DR: Mannosylated cellulose showed good in vitro compatibility with fibroblasts demonstrating its potential in the tissue engineering field which could provide a tissue compatible scaffold.
Journal ArticleDOI
Sustainable pathway towards large scale melt processing of the new generation of renewable cellulose–polyamide composites
TL;DR: In this paper, the authors present a review of the current state of research involving the use of cellulosic materials, as bio-sourced and sustainable reinforcement in melt-processed polyamides and focus on the main hurdles that prevent their successful large-scale melt-compounding.
References
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Journal ArticleDOI
Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
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
Controlled/"living" radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes
Journal ArticleDOI
Review of Recent Research into Cellulosic Whiskers, Their Properties and Their Application in Nanocomposite Field
TL;DR: There are numerous examples where animals or plants synthesize extracellular high-performance skeletal biocomposites consisting of a matrix reinforced by fibrous biopolymers, which occur as whisker-like microfibrils that are biosynthesized and deposited in a continuous fashion.
Reference BookDOI
Food Polysaccharides and Their Applications
TL;DR: Alistair M. Stephen and Shirley C. Cui as mentioned in this paper proposed a method for the detection of polysaccharides in foods, and showed that the method can be applied in the field of agriculture.
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