Results 261 to 270 of about 263,809 (306)

Iridescent Cellulose Nanocrystal Films Modified with Hydroxypropyl Cellulose

Biomacromolecules, 2020
The introduction of polymers into a chiral nematic cellulose nanocrystal (CNC) matrix allows for the tuning of optical and mechanical properties, enabling the development of responsive photonic materials. In this study, we explored the incorporation of hydroxypropyl cellulose (HPC) into a CNC film prepared by slow evaporation.
Christopher M. Walters, Charlotte E. Boott, Thanh-Dinh Nguyen, Wadood Y. Hamad, Mark J. MacLachlan   +4 more
openaire   +2 more sources

Cellulose nanocrystals: Fundamentals and biomedical applications

Carbohydrate Polymers, 2022
The present review explores the recent developments of cellulose nanocrystals, a class of captivating nanomaterials in variety of applications. CNCs are made by acid hydrolysing cellulosic materials like wood, cotton, tunicate, flax fibers by sonochemistry.
Prajakta, Mali, Atul P, Sherje
openaire   +2 more sources

Multifunctional Cellulosic Scaffolds from Modified Cellulose Nanocrystals

ACS Applied Materials & Interfaces, 2017
A biobased cellulosic scaffold material was made through freeze-drying ice-templating of functionalized cellulosic nanomaterials. The resulting interconnected highly porous scaffold was primarily composed of highly esterified, strong network of ultrathin cellulosic layers.
Eldho Abraham, David E Weber, Sigal Sharon, Shaul Lapidot, Oded Shoseyov   +4 more
openaire   +2 more sources

Polyhydroxybutyrate-Based Nanocomposites with Cellulose Nanocrystals and Bacterial Cellulose

Journal of Polymers and the Environment, 2016
Polyhydroxybutyrate (PHB) films nanoreinforced with hydrolyzed cellulose nanocrystals (CNC) and bacterial cellulose (BC) were prepared by solvent casting. The influence of different cellulose nanoparticles content (2, 4 and 6 wt% of CNC and 2 wt% of BC) on the PHB properties was studied. CNC nanocomposites presented good dispersion of the nanocrystals,
Seoane, Irene Teresita, Cerrutti, Patricia, Vázquez, Analía, Manfredi, Liliana Beatriz, Cyras, Viviana Paola   +4 more
openaire   +2 more sources

The Improved Redispersibility of Cellulose Nanocrystals Using Hydroxypropyl Cellulose and Structure Color from Redispersed Cellulose Nanocrystals

Biomacromolecules
Cellulose nanocrystals (CNC) have been significantly developed as a building block material for the design of novel functional materials in many fields such as biomedicine, nanotechnology, and materials science due to their excellent optical properties, biocompatibility, and sustainability.
Huan Wang, Lukuan Guo, Mingfeng Wu, Guang Chu, Wenyuan Zhu, Junlong Song, Jiaqi Guo   +6 more
openaire   +2 more sources

Cellulose Nanocrystals/Cellulose Core-in-Shell Nanocomposite Assemblies

Langmuir, 2009
We report herein for the first time how a co-electrospinning technique can be used to overcome the issue of orienting cellulose nanocrystals within a neat cellulose matrix. A home-built co-electrospinning apparatus was fabricated that was comprised of a high-voltage power supply, two concentric capillary needles, and one screw-type pump syringe ...
Washington Luiz Esteves, Magalhães, Xiaodong, Cao, Lucian A, Lucia   +2 more
openaire   +2 more sources

Preparation of cellulose nanocrystals and carboxylated cellulose nanocrystals from borer powder of bamboo

Cellulose, 2014
Carboxylated cellulose nanocrystals (CCN) and cellulose nanocrystals (CNC) were prepared from borer powder of bamboo by two different kinds of procedures: one-step approach with ammonium persulfate for CCN and two-step approach with sulfuric acid for CNC.
Yang Hu, Lirong Tang, Qilin Lu, Siqun Wang, Xuerong Chen, Biao Huang   +5 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +3 more sources