Recent progressions in biomedical and pharmaceutical applications of chitosan nanoparticles: A comprehensive review

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 231, P. 123354 - 123354

Published: Jan. 18, 2023

Language: Английский

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Synthesis strategies of covalent organic frameworks: An overview from nonconventional heating methods and reaction media

Green Energy & Environment, Journal Year: 2022, Volume and Issue: 8(6), P. 1596 - 1618

Published: May 14, 2022

Covalent organic frameworks (COFs), as an emerging class of porous crystalline materials constructed by covalent links between the building monomers, have gained tremendous attention. Over past 15 years, COFs made rapid progress and substantial development in chemistry fields. However, synthesis has been dominated solvothermal methods for a long time it usually involves high temperature, pressure toxic solvents, which created many challenges environmental considerations. Recently, exploration new approaches facile fabrication aroused extensive interest. Hence, this review, we comprehensively describe synthetic strategies from aspects nonconventional heating reaction media. In addition, advantages, limitations properties preparation are compared. Finally, outline main prospects future propose some possible solutions.

Language: Английский

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3D/4D printing of cellulose nanocrystals-based biomaterials: Additives for sustainable applications

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 251, P. 126287 - 126287

Published: Aug. 11, 2023

Cellulose nanocrystals (CNCs) have gained significant attraction from both industrial and academic sectors, thanks to their biodegradability, non-toxicity, renewability with remarkable mechanical characteristics. Desirable characteristics of CNCs include high stiffness, strength, excellent flexibility, large surface-to-volume ratio. Additionally, the properties can be tailored through chemical modifications for high-end applications including tissue engineering, actuating, biomedical. Modern manufacturing methods 3D/4D printing are highly advantageous developing sophisticated intricate geometries. This review highlights major developments additive manufactured CNCs, which promote sustainable solutions across a wide range applications. this contribution also presents current challenges future research directions CNC-based composites developed techniques myriad engineering sectors wound healing, wearable electronics, robotics, anti-counterfeiting Overall, will greatly help scientists chemistry, materials, biomedicine, other disciplines comprehend underlying principles, properties, additively structures.

Language: Английский

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Agricultural wastes: A practical and potential source for the isolation and preparation of cellulose and application in agriculture and different industries

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 208, P. 117904 - 117904

Published: Dec. 12, 2023

Cellulose is an organic compound belonging to polysaccharides. This biopolymer made of glucose subunits. plays essential role in the structure and strength plants. polymer has biodegradable, biocompatible, renewable properties. Agricultural wastes are excellent sources for cellulose extraction. lignocellulosic materials, lignin main components these wastes. Millions tons agricultural waste thrown away burned yearly. large amount leads environmental pollution energy resources. Upgrading such by developing innovative products as nanomaterials nanocomposites can have high economic benefits. The intelligent use a rich source be primarily responsible increase population industrialization countries. Optimal extraction from widely used various fields agriculture, industry, medicine, energy. Different chemical, physical, physicochemical, biological methods been presented extract its derivatives waste. In this review, we will discuss position importance cellulose, extracted agrarian sources.

Language: Английский

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Advances and Applications of Cellulose Bio-Composites in Biodegradable Materials

Journal of Polymers and the Environment, Journal Year: 2023, Volume and Issue: 31(6), P. 2273 - 2284

Published: Jan. 7, 2023

Language: Английский

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Production and Surface Modification of Cellulose Bioproducts

Polymers, Journal Year: 2021, Volume and Issue: 13(19), P. 3433 - 3433

Published: Oct. 7, 2021

Petroleum-based synthetic plastics play an important role in our life. As the detrimental health and environmental effects of continue to increase, renewable, degradable recyclable properties cellulose make subsequent products “preferred environmentally friendly” alternatives, with a small carbon footprint. Despite fact that bioplastic industry is growing rapidly many innovative discoveries, cellulose-based bioproducts their natural state face challenges replacing plastics. These include scalability issues, high cost production, most importantly, limited functionality cellulosic materials. However, order for materials be able compete plastics, they must possess adequate end use meet performance expectations. In this regard, surface modification pre-made preserves chemical profile cellulose, its mechanical properties, biodegradability, while diversifying possible applications. The review covers numerous techniques functionalization prepared from such as plasma treatment, grafting (including RDRP methods), vapor atomic layer deposition techniques. also highlights purposeful development new architectures utilization, specific focus on hydrogels, aerogels, beads, membranes, nanomaterials. judicious choice material architecture combined method will allow us take full advantage polymer’s biocompatibility biodegradability improve existing target novel applications proteins antibodies immobilization, enantiomers separation, composites preparation.

Language: Английский

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Recent Advances in Chemically Modified Cellulose and Its Derivatives for Food Packaging Applications: A Review

Polymers, Journal Year: 2022, Volume and Issue: 14(8), P. 1533 - 1533

Published: April 10, 2022

The application of cellulose in the food packaging field has gained increasing attention recent years, driven by desire for sustainable products. Cellulose can replace petroleum-based plastics because it be converted to biodegradable and nontoxic polymers from natural resources. These products have increasingly been used as coatings, self-standing films, paperboards packaging, owing their promising mechanical barrier properties. However, utilization is limited high hydrophilicity cellulose. With presence a large quantity functionalities within pristine its derivatives, these building blocks provide unique platform chemical modification via covalent functionalization introduce stable permanent A primary aim attachment reduce probability component leaching wet softened conditions improve aqueous, oil, water vapor, oxygen barriers, thereby extending specific use field. may affect desirable mechanical, thermal stabilities biodegradability exhibited This review exhaustively reports research progress on techniques prospective applications chemically modified including active packaging.

Language: Английский

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Insoluble dietary fibers: structure, metabolism, interactions with human microbiome, and role in gut homeostasis

Critical Reviews in Food Science and Nutrition, Journal Year: 2022, Volume and Issue: 64(7), P. 1954 - 1968

Published: Sept. 12, 2022

Consumption of food rich in dietary fibers (DFs) has been long recognized to exert an overall beneficial effect on human health. This review aims provide a holistic overview how IDFs impact gut health either directly, or through modulation the microbiome. Several databases were searched for collecting papers such as PubMed, Google Scholar, Web Science, Scopus and Reaxys from 2000 till 2022. Firstly, chemical structure various pathways employed by microbiota their degradation is provided. The microbial community pathogens colonization inside was discussed. Finally, homeostasis systemic effects at cellular level, well immunological benefits consumption analyzed. viz., cellulose, hemicellulose, resistant starch, lignin found enriched are discussed these effects. induce immunity, improve intestinal integrity mucosal proliferation, favor adhesion probiotics hence Also, concluded bioavailability plant polyphenols health-related functional roles. Ultimately, processing modification shows potential enhance fibers-based production, addition increase economic value usage food-rich by-products.

Language: Английский

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Are natural deep eutectic solvents always a sustainable option? A bioassay-based study

Environmental Science and Pollution Research, Journal Year: 2022, Volume and Issue: 30(7), P. 17268 - 17279

Published: Oct. 4, 2022

The traditional use of organic solvents in various branches industry is being rethought as these compounds very often display high volatility, toxicity and lipophilicity (related to the ability interact with biological membranes). More recently, developments field Green Chemistry are focusing on design more sustainable cost-effective solvent alternatives like Ionic Liquids (ILs), bio-based natural deep eutectic (NADESs). present study aimed at performing an ecotoxicological screening 15 NADESs using extensive set marine freshwater bioassays, based different endpoints following: immobilization crustacean Daphnia magna, growth inhibition Raphidocelis subcapitata Phaeodactylum tricornutum, larval development alterations serpulid Ficopomatus enigmaticus bioluminescence Aliivibrio fischeri. What emerged was a general absence all samples. However, both algal assays showed certain degree biostimulation, up over 100% increase respect controls 8 out tested subcapitata. Despite NADESs-induced negligible effects invertebrates, encouraging their labelling "sustainable" solvents, liability intentional or accidental release into aquatic systems may represent serious risk terms ecosystem functioning impairments.

Language: Английский

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Neat Chitosan Porous Materials: A Review of Preparation, Structure Characterization and Application

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(17), P. 9932 - 9932

Published: Sept. 1, 2022

This review presents an overview of methods for preparing chitosan-derived porous materials and discusses their potential applications. family has garnered significant attention owing to biocompatibility, nontoxicity, antibacterial properties, biodegradability, which make them advantageous in a wide range Although individual chitosan-based have been widely discussed the literature, summary all available based on pure chitosan, along with structural characterization applications, not yet presented. five strategies fabricating chitosan materials, i.e., cryogelation, freeze-drying, sol-gel, phase inversion, extraction porogen agent. Each approach is described detail examples related preparation materials. The influence fabrication method structure obtained material also highlighted herein. Finally, we discuss applications considered

Language: Английский

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