Abstract
Industrial sea food residues, mainly crab and shrimp shells, are considered to be the most promising and abundant source of chitin. In-depth understanding of the biological properties of chitin and scientific advancements in the field of nanotechnology have enabled the development of high-performance chitin nanomaterials. Nanoscale chitin is of great economic value as an efficient functional and reinforcement material for a wide range of applications ranging from water purification to tissue engineering. The use of polymers and nanochitin to produce (bio) nanocomposites offers a good opportunity to prepare bioplastic materials with enhanced functional and structural properties. Most processes for nanochitin isolation rely on the use of chemical, physical or mechanical methods. Chitin-based nanocomposites are fabricated by various methods, involving electrospinning, freeze drying, etc. This review discusses the progress and new developments in the isolation and physico-chemical characterization of chitin; it also highlights the processing of nanochitin in various composite and functional materials.
Highlights
Several studies focused on developing value-added products from marine resources, providing a large number of biomaterials that are of economic importance
Different processing techniques exist for nanochitin-reinforced polymer nanocomposites wherein wherein chitin nanocrystal fillers are blended with polymeric matrices, suchmethacrylate), as poly
In a study conducted by Xu et al, the compositions, thermal stabilities and decomposition kinetics of TEMPO-oxidized cellulose nanofiber (TOCNF), partially deacetylated α-chitin nanofiber (α-DECHN) and TOCNF/multi-wall carbon nanotube (MWCNT)/α-DECHN composite wires were analyzed by thermo gravimetric analysis (TGA) [85]
Summary
Several studies focused on developing value-added products from marine resources, providing a large number of biomaterials that are of economic importance. This woven network of planes, wherein diameters ranging from 50 to 300 nm (Figure 1b) This woven network of planes, wherein chitin chitin is embedded in proteins and calcium carbonate, forms twisted or helicoidal stacking sequences, is embedded in proteins and calcium carbonate, forms twisted or helicoidal stacking sequences, called a Bouligand structure [4,6]. Due to its highly ordered crystalline structure, chitin is resistant to physical and chemical agents. Due to its highly ordered crystalline structure, chitin is resistant to physical anddevelopment chemical agents. A well-known derivative of chitin, is formed through the enzymatic or application of chitin. Well-known derivative of chitin, is formed through the enzymatic chemical deacetylation of chitin. Amid the COVID-19 crisis, the global market for chitin and chitosan derivatives useful products.
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