Chitin nanofibers: preparations, modifications, and applications
Chitin nanofibers are prepared from the exoskeletons of crabs and prawns by a simple mechanical treatment after the removal of proteins and minerals. The obtained nanofibers have fine nanofiber networks with a uniform width of approximately 10–20 nm and a high aspect ratio.
Mechanically Strong Chitin Fibers with Nanofibril Structure ...
Feb 25, 2019 · Chitin derived from seafood wastes possesses excellent biocompatibility and biodegradability, but it is still far from being fully explored. Here, we designed and prepared, for the first time, chitin fibers with nanofibril structures from the chitin solution in the NaOH/urea aqueous system by cooling on a lab-scale wet-spinning machine.
Chitin nanofibers prepared by enzymatic hydrolysis: …
Jan 1, 2024 · Chitin nanofibers (ChNFs) have a wide range of applications in numerous fields owing to their exceptional material properties and biological functionality. This research focused on producing ChNFs with diameters of 20–70 nm …
Nanochitin: Chemistry, Structure, Assembly, and Applications
Jun 2, 2022 · In this Review, we consider two types of nanochitin, chitin nanofiber (ChNF) and nanocrystal (ChNC), which have equally attracted research interests in recent years (Figure 1c). To keep the inherent native crystalline structure, the most common route to access nanochitin is direct disintegration of chitin bundles.
Physically fabricated chitin nanofibers for food applications
Oct 21, 2024 · Chitin nanofibers (ChNFs) are often produced through physical preparation procedures, which not only maintain the inherent characteristics of chitin but also fundamentally reduce the chemical residues, thus broadening the application range of ChNFs, particularly in …
Facile Route to Produce Chitin Nanofibers as Precursors for …
Nov 19, 2014 · We report a high pressure homogenization route to produce pure chitin nanofibers (ChNFs) starting with a mildly acidic aqueous dispersion of purified crab α-chitin. The well-dispersed ChNFs with diameter ∼20 nm do not form strong network structures under conditions explored herein and can be directly processed into useful materials ...
Development of chitin nanofiber coatings for prolonging shelf …
Aug 14, 2023 · Herein, we developed sustainable chitin nanofiber (ChNF) coatings that prolong the shelf life of fresh cucumbers and delay the growth of pathogenic bacteria on their surfaces.
Chitin Nanofibers: Preparations, Modifications, and Applications
Jan 1, 2014 · Chitin nanofibers have a characteristic extended crystal structure; they have a high mechanical strength and high Young’s modulus. Thus, chitin nanofibers are considered to be a better reinforcement filler to improve the mechanical properties of composite materials.
Chitin nanofibers as versatile bio-templates of zeolitic …
Jan 1, 2021 · In the present study, as one of the most abundant bio-polymers, chitin nanofibers were used to produce low cost nitrogen-doped carbon with large surface areas and open hierarchical porous nanostructures, playing a versatile role as a desirable conductive substrate to support ZIF-8 derived porous carbon.
Engineering strategies for chitin nanofibers - RSC Publishing
Chitin nanofibers are key components in several structural biological materials. Chitin nanofibers are often part of a hierarchical structure formed by chitin molecules assembled into larger nano- and microfibers, aligned, and assembled into a twisted plywood structure.