Chitosan-based nanostructured biomaterials: Synthesis, properties, and biomedical applications

Advanced Industrial and Engineering Polymer Research, Год журнала: 2023, Номер 7(1), С. 79 - 99

Опубликована: Июль 19, 2023

Chitosan is obtained from chitin, which abundantly found in crustaceans and through various methods. The demineralization, deproteinization, discoloration, deacetylation of chitin produce chitosan consisting D-glucosamine N-acetyl units that are linked β-(1,4)-glycosidic linkages. has gained significant attention the biomedical field due to its unique properties such as abundance, renewability, non-toxic nature, antimicrobial activity, biodegradability, polyfunctionality. One key why it been heavily utilized field. To provide a comprehensive overview chitosan, this review discusses extraction based on source It also delves into chemical modifications nanocomposite development using natural synthetic materials. emphasizes multitude make an excellent choice for wide range applications. mechanisms antibacterial activity factors affecting activity. Additionally, highlights hemocompatibility, antioxidant anti-inflammation, other contribute suitability different applications, including wound dressing materials, drug delivery carriers, biosensing diagnostic devices, bone substitutes, bioimaging. While discussing some limitations concludes with future perspective developing multifunctional chitosan-based nanomaterials could potentially move laboratory clinical trials treating diseases.

Язык: Английский

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Advanced adsorbents for ibuprofen removal from aquatic environments: a review

Environmental Chemistry Letters, Год журнала: 2023, Номер 22(1), С. 373 - 418

Опубликована: Авг. 25, 2023

Abstract The presence of pharmaceuticals in ecosystems is a major health issue, calling for advanced methods to clean wastewater before effluents reach rivers. Here, we review adsorption remove ibuprofen, with focus on ibuprofen occurrence and toxicity, adsorbents, kinetics, isotherms. Adsorbents include carbon- silica-based materials, metal–organic frameworks, clays, polymers, bioadsorbents. Carbon-based adsorbents allow the highest from 10.8 408 mg/g activated carbon 2.5–1033 biochar. Metal–organic frameworks appear promising due their high surface areas tunable properties morphology. 95% published reports reveal that kinetics follow pseudo-second-order model, indicating predominantly governed by chemical adsorption. 70% disclose Langmuir model describes isotherm, suggesting involves monolayer

Язык: Английский

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3D kaolinite/g-C3N4-alginate beads as an affordable and sustainable photocatalyst for wastewater remediation

Carbohydrate Polymers, Год журнала: 2023, Номер 323, С. 121420 - 121420

Опубликована: Сен. 20, 2023

Язык: Английский

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Critical review on the tetracycline degradation using photo-Fenton assisted g-C3N4-based photocatalysts: Modification strategies, reaction parameters, and degradation pathway

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112984 - 112984

Опубликована: Май 7, 2024

Язык: Английский

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Efficient removal of tetracycline, ciprofloxacin, and amoxicillin by novel magnetic chitosan/microalgae biocomposites

Separation and Purification Technology, Год журнала: 2023, Номер 329, С. 125115 - 125115

Опубликована: Сен. 18, 2023

Two new highly-efficient and eco-friendly biosorbents comprised of magnetite, chitosan Chlorella vulgaris (MCC) or Arthrospira platensis (MCA) were prepared in such a way to be easily separated reused for removing different classes antibiotics as tetracycline (TC), ciprofloxacin (CIP) amoxicillin (AMX) from wastewater. They characterized using SEM, FTIR TGA. Biosorption experiments performed investigate the impact pH, biosorbent dosage, initial antibiotic concentration, contact time, concentration background electrolytes (NaCl, KCl CaCl2) on adsorption. Both biocomposites showed outstanding performance removal. Equilibrium data modelled Langmuir, Freundlich, Temkin, Dubinin-Radushkevich adsorption isotherms, among which first one gave best fit, with maximum TC, CIP AMX capacities 834.0, 394.9, 150.8 mg/g MCA 831.1, 374.2, 140.2 MCC, respectively. To follow time-evolution, pseudo-first-order, pseudo-second-order intraparticle diffusion kinetic models tested, second proved best-fitting one. Thermodynamic parameters revealed that was spontaneous endothermic. regenerated through microwave-assisted treatment repeatedly up four cycles, losing at equilibrium by no >7, 4 9 %, This study suggests both may effective sustainable alternatives commercial adsorbents

Язык: Английский

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Advanced photo-Fenton assisted degradation of tetracycline antibiotics using α-Fe2O3/CdS/SiO2 based S-scheme photocatalyst

Journal of Water Process Engineering, Год журнала: 2024, Номер 59, С. 105011 - 105011

Опубликована: Фев. 20, 2024

Язык: Английский

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Aloe vera/Chitosan-Based Edible Film with Enhanced Antioxidant, Antimicrobial, Thermal, and Barrier Properties for Sustainable Food Preservation

Polymers, Год журнала: 2024, Номер 16(2), С. 242 - 242

Опубликована: Янв. 15, 2024

Food bioactive packaging has received increasing attention from consumers and the food industry for its potential to reduce waste environmental issues. Several materials can be used produce edible films/coats; however, bio-based, cost-effective, sustainable coatings have gained a high reputation these days. For instance, Aloe vera gel (AV) is promising bio-based material films; therefore, present study aimed investigate film-forming abilities of AV Chitosan (CH) combination as active material. The physicochemical mechanical characteristics formed films various combinations were prepared at different concentrations, i.e., CH (0.5% w/v), (100%), CH:AV (75:25), (60:40). results showed significant differences among all wherein mainly on account incorporating gel. rheological antioxidant properties formulations improved with inclusion composed (60:40) positively affected water solubility, thermal properties, vapour permeability films. X-ray Diffraction (XRD) Scanning electron microscopy (SEM) that CH:AV, amorphous had smooth morphology. Further, film solutions applied fresh figs (Ficus carica) their role in preserving fruits during storage. A reduction microbial growth was found coated after 28 days cold overall compared (0.5%, w/v). Therefore, (CH:AV, 60:40) form utilized product preservation maintain quality shelf life.

Язык: Английский

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Sustainable chitosan-based materials as heterogeneous catalyst for application in wastewater treatment and water purification: An up-to-date review

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 273, С. 133043 - 133043

Опубликована: Июнь 8, 2024

Язык: Английский

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Chitosan/Acid Modified Olive Tree (Olea europaea) Leaves as Sustainable Adsorbent for Organic Dye Removal from Water: Adsorption Modeling and Optimization by Box-Behnken Design

International Journal of Environmental Research, Год журнала: 2025, Номер 19(2)

Опубликована: Янв. 9, 2025

Язык: Английский

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Current Developments in Chitosan‐Based Hydrogels for Water and Wastewater Treatment: A Comprehensive Review

ChemistrySelect, Год журнала: 2025, Номер 10(6)

Опубликована: Фев. 1, 2025

Abstract The global shortage of fresh water is a critical issue, especially in regions with limited rainfall. Developing reliable and wastewater treatment technologies urgent. Among the available methods, adsorption stands out as highly effective, straightforward, cost‐efficient approach. It avoids use additional chemicals reduces risk contaminating source undesirable by‐products. Chitosan (CS)‐based hydrogels have gained attention for their excellent capacities pollutants water. These materials are also known bioavailability, biocompatibility, biodegradability, cost‐effectiveness, environmental friendliness, making them promising candidates treatment. This comprehensive review explores recent advancements CS‐based various applications, including pollutant removal, oil‐water separation, seawater desalination, atmospheric condensation. highlights benefits this material treatment, providing broader understanding potential research community. focuses on synthesis modification techniques these hydrogels, such cross‐linking, grafting, ion imprinting, which significantly enhance performance mechanical stability. Additionally, challenges faced by practical applications discussed, along solutions. paper concludes forecasting future directions field, offering valuable insights researchers. Overall, provides overview current state art into effective utilization emphasizing to address pollution challenges.

Язык: Английский

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