Production of functionalized nanocelluloses from different sources using deep eutectic solvents and their applications

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 199, P. 116583 - 116583

Published: April 28, 2023

Nanocelluloses have gained increasing attention over the years due to their attractive intrinsic properties, such as high strength and stiffness, biocompatibility, good film-forming ability, easy surface functionalization, tunable optical etc. With these unique features, nanocelluloses potential be applied in a wide range of applications. However, economic environmental problems associated conventional methods producing make it difficult produce them on large scale. Therefore, scientific community has been studying new alternatives. One alternative that recently emerged is use deep eutectic solvents (DESs) for production nanocelluloses. The biodegradable biocompatible character DESs combined with low toxicity, preparation, tunability recyclability turn promising alternatives nanocellulose isolation. In this sense, article provides comprehensive overview (ligno)cellulose nanofibrils ((L)CNFs) nanocrystals ((L)CNCs) from woody resources non-woody/agricultural residues using DESs. Additionally, applications produced DES-(L)CNFs DES-(L)CNCs are also discussed. From review, was possible conclude by different DES components, types chemical functionalization (L)CNFs obtained, which confer final material distinct properties. films showed very mechanical On other hand, can higher yields showing better thermal stability compared CNC production. Despite results, an in-depth analysis still lacking. Notwithstanding, favorable reuse results indicate they candidates (and nanocellulose-based films)

Language: Английский

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Advances in green solvents for production of polysaccharide‐based packaging films: Insights of ionic liquids and deep eutectic solvents

Comprehensive Reviews in Food Science and Food Safety, Journal Year: 2022, Volume and Issue: 22(2), P. 1030 - 1057

Published: Dec. 29, 2022

Abstract The problems with plastic materials and the good film‐forming properties of polysaccharides motivated research in development polysaccharide‐based films. In last 5 years, there has been an explosion publications on using green solvents, including ionic liquids (ILs), deep eutectic solvents (DESs) as candidates to substitute conventional solvents/plasticizers for preparations desired This review summarizes related recovery ILs DESs, a series preparation strategies (including pretreatment solvents/reaction media, ILs/DESs components, extraction bioactive compounds added into films), inherent films with/without DESs. Major reported advantages these new are high dissolving capacity certain (i.e., up 30 wt% cellulose) better plasticizing ability than traditional plasticizers. addition, they frequently display intrinsic antioxidant antibacterial activities that facilitate applications processing (especially active food packaging films). film could also be further recycled by water or ethanol/methanol treatment followed drying/evaporation. One particularly promising approach is use cholinium‐based DESs safety improve functional prepared Whole extracts from various byproducts can directly used without separation/polishing extracting agents. Scaling‐up, costs environmental footprint, well real foods (extracts) deserves more studies.

Language: Английский

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Characteristics and Antibacterial Properties of Film Membrane of Chitosan-Resveratrol for Wound Dressing

Emerging Science Journal, Journal Year: 2023, Volume and Issue: 7(3), P. 821 - 842

Published: May 10, 2023

The research aimed to evaluate the film membrane of Nano Chitosan Resveratrol (NCHR) for biological, physicochemical, and antibacterial properties. Psychochemically, functional groups chitosan compounds were examined by FTIR, chemical GCMS, morphology elements SEM-EDS. Biologically, characteristics NCHR solubility, swelling, permeability, biodegradation tests. Meanwhile, properties inhibition Porphyromonas gingivalis (P. gingivalis) ATCC 33277 Minimal concentration (MIC) growth assessment spectrophotometry. (NCH) has appeared at 1033.85 cm-1 as a sharp peak indicating P=O group contains anti-toxicity (Ethane, 1,1-diethoxy- (CAS) 1,1-Diethoxye) is 81.06% antioxidant Limonene (1.28%). In addition, NCH elements, Oxygen Weight (69.4%), calcium (19.7%), magnesium (6.6%), phosphorus (4.3%). NaCl 0.9%, PBS, Aquades. it an excellent index water vapor transmission rate (WVTR) in all solvents (R2³ 0.95). bacteriostatic (≤ 300 CFU/mL) with each value Inhibition Concentration >15 mm. antitoxic, antioxidant, high oxygen elements. nano resveratrol can maintain stability changes pH very solubility index, swelling WVTR well good Doi: 10.28991/ESJ-2023-07-03-012 Full Text: PDF

Language: Английский

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Extraction of Bioactive Compounds from C. vulgaris Biomass Using Deep Eutectic Solvents

Molecules, Journal Year: 2023, Volume and Issue: 28(1), P. 415 - 415

Published: Jan. 3, 2023

C. vulgaris microalgae biomass was employed for the extraction of valuable bioactive compounds with deep eutectic-based solvents (DESs). Particularly, Choline Chloride (ChCl) based DESs, ChCl:1,2 butanediol (1:4), ChCl:ethylene glycol (1:2), and ChCl:glycerol (1:2) mixed water at 70/30 w/w ratio were used that purpose. The extracts’ total carotenoid (TCC) phenolic contents (TPC), as well their antioxidant activity (IC50), determined within process identification most efficient solvent. This screening procedure revealed (1:4)/H2O compelling solvent; thus, it thereafter optimization. Three parameters, i.e., solvent-to-biomass ratio, temperature, time studied regarding impact on extract’s TCC, TPC, IC50. For experimental design optimization, statistical tool Response Surface Methodology used. resulting models’ predictive capacity confirmed experimentally by carrying out two additional extractions under conditions different from design.

Language: Английский

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Cutting Edge Use of Conductive Patterns in Nanocellulose‐Based Green Electronics

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(37)

Published: May 28, 2023

Abstract Green electronics made from degradable materials have recently attracted special attention, because electronic waste (e‐waste) represents a serious threat to the environment and human health worldwide. Among novel used for sustainable technologies, nanocelluloses containing at least 1D in nanoscale range (1–100 nm) been widely exploited various industrial applications owing their inherent properties, such as biodegradability, mechanical strength, thermal stability, optical transparency. This review highlights recent advances research on development of patterns conductive material nanocellulose substrates use high‐performance green electronics. The advantages compared conventional paper advanced are discussed. Importantly, this emphasizes fabrication strategies producing different types nanocellulose‐based substrates, cellulose nanofiber (CNF), (2,2,6,6‐tetramethylpiperidin‐1‐yl)oxyl(TEMPO)‐oxidized CNF, regenerated cellulose, bacterial cellulose. In latter part review, emerging engineering circuits, transistors/antennas, sensors, energy storage systems, electrochromic devices further

Language: Английский

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Natural arginine-based deep eutectic solvents for rapid microwave-assisted pretreatment on crystalline bamboo cellulose with boosting enzymatic conversion performance

Bioresource Technology, Journal Year: 2023, Volume and Issue: 385, P. 129438 - 129438

Published: July 1, 2023

Language: Английский

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Recent Advances in Micro- and Nano-Drug Delivery Systems Based on Natural and Synthetic Biomaterials

Polymers, Journal Year: 2023, Volume and Issue: 15(23), P. 4563 - 4563

Published: Nov. 28, 2023

Polymeric drug delivery technology, which allows for medicinal ingredients to enter a cell more easily, has advanced considerably in recent decades. Innovative medication strategies use biodegradable and bio-reducible polymers, progress the field been accelerated by future possible research applications. Natural polymers utilized polymeric systems include arginine, chitosan, dextrin, polysaccharides, poly(glycolic acid), poly(lactic hyaluronic acid. Additionally, poly(2-hydroxyethyl methacrylate), poly(N-isopropyl acrylamide), poly(ethylenimine), dendritic bioabsorbable as well biomimetic bio-related drug-free macromolecular therapies have employed delivery. Different synthetic natural biomaterials are clinical phase mitigate different diseases. Drug methods using becoming increasingly common pharmaceutical industry, with biocompatible copolymers dendrimers having helped cure cancer systems. This review discusses all above components how, combining biological approaches, micro- nano-drug can result revolutionary gene devices.

Language: Английский

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Cellulose-based adsorbents for solid phase extraction and recovery of pharmaceutical residues from water

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 318, P. 121097 - 121097

Published: June 10, 2023

Language: Английский

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Machine Learning Approach for the Prediction of Eutectic Temperatures for Metal-Free Deep Eutectic Solvents

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(42), P. 15492 - 15502

Published: Oct. 9, 2023

Deep eutectic solvents (DESs) represent an environmentally friendly alternative to conventional organic solvents. Their liquid range determines the areas of application, and therefore, prediction solid–liquid equilibrium (SLE) diagrams is essential for developing new DESs. Such predictions are not yet possible by using current state-of-the-art computational models. Herein, we present model based on support vector regression integrating experimental data, a conductor-like screening real simulations, cheminformatic descriptors predicting melting temperatures binary metal-free DESs or ionic liquids, allowing researcher estimate formation SLE specific combinations components. The was developed manually collected database 1648 mixture 237 experimentally described DESs, its accuracy demonstrated 5-fold cross-validation (R2 ∼ 0.8). presented machine learning methodology empowers researchers predefine holds promise efficient molecular combination screening, facilitating discovery tailored desired applications from catalysis extraction energy storage. By enabling deeper understanding DES behavior targeted design these solvents, proposed approach contributes advancing green chemistry practices promoting sustainable solvent usage.

Language: Английский

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Comparison of shrimp waste-derived chitosan produced through conventional and microwave-assisted extraction processes: Physicochemical properties and antibacterial activity assessment

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 242, P. 124841 - 124841

Published: May 12, 2023

Language: Английский

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