Cellulose Nanocrystals
Cellulose Nanocrystals - Related Videos
07:25
Green and Low-cost Production of Thermally Stable and Carboxylated Cellulose Nanocrystals and Nanofibrils Using Highly Recyclable Dicarboxylic Acids
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Cited by 22 •
2017
Here we demonstrate a novel method for green and sustainable productions of highly thermally stable and carboxylated cellulose nanocrystals (CNC) and nanofibrils (CNF) using highly recyclable solid dicarboxylic acids.
11:06
Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
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Cited by 4 •
2016
This protocol describes the synthesis and solution deposition of inorganic nanocrystals layer by layer to produce thin film electronics on non-conductive surfaces. Solvent-stabilized inks can produce complete photovoltaic devices on glass substrates via spin and spray coating following post-deposition ligand exchange and sintering.
07:34
Biofuels: Producing Ethanol from Cellulosic Material
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, cellulosic material (such as corn stalks, leaves, grasses, etc.) will be used as a feedstock for the production of ethanol. The cellulosic material is first pretreated (ground and heated), digested with enzymes, and then fermented with yeast. Ethanol production is monitored using an ethanol probe. The experiment can be extended to optimize ethanol production by varying the feedstock used,...
02:52
Preparation of Bacterial Nanocellulose Pellicles from Cellulose-Producing Bacteria
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2025
Source: Arias, S. L., et al. Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles. J. Vis. Exp. (2016).This video demonstrates the production of nanocellulose by culturing cellulose-producing bacteria in a nutrient medium containing mannitol. The bacteria metabolize mannitol into glucose, which is then polymerized and extruded as glucan chains that crystallize into cellulose sheets, forming a three-dimensional matrix at the air–liquid interface. The...
10:47
Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder
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Cited by 19 •
2014
We present a novel method of manufacturing rigid and robust short natural fiber preforms using a papermaking process. Bacterial cellulose acts simultaneously as the binder for the loose fibers and provides rigidity to the fiber preforms. These preforms can be infused with a resin to produce truly green hierarchical composites.
FAQs
Acid hydrolysis selectively removes less ordered amorphous regions of cellulose while retaining the more organized crystallites. This selective breakdown produces the nanoscale domains used in subsequent formulations. Because the balance between removal and preservation depends on processing conditions, controlling hydrolysis is important for obtaining the desired material structure and performance.
Surface functionalization changes how the crystals interact with one another and with surrounding biological or polymer phases. Modified surface groups can improve dispersion, meaning more uniform distribution, and can also tune biological interactions. In a composite or hydrogel, these effects influence interface quality and the consistency of the final material.
The combination of high stiffness and low density allows cellulose nanocrystals to reinforce a material without relying solely on a heavier additive. In bioengineered hydrogels, scaffolds, or composites, this balance can support mechanical enhancement while preserving a lightweight design. The benefit depends on processing and dispersion conditions.
A practical workflow begins with a cellulose source, followed by acid hydrolysis to remove amorphous regions. The resulting crystalline material can then undergo surface modification when a specific dispersion or biological interaction is needed. Finally, it is incorporated into hydrogels, scaffolds, coatings, or composite biomaterials.
These materials are especially relevant when a design needs both structural reinforcement and an adjustable interface. They can be added to reinforced hydrogels, tissue-engineering scaffolds, coatings, and composite biomaterials. Their role is not limited to strength; surface chemistry can be tailored to influence dispersion and biological interactions.
Successful use requires careful control of processing conditions and biocompatibility. Processing affects how the crystalline domains are preserved and distributed, while biocompatibility determines whether the resulting material is appropriate for a biological setting. Researchers therefore consider both mechanical performance and biological compatibility when selecting a formulation.