How the chitosan structure can affect the adsorption of pharmaceuticals from wastewaters: An overview

Dago-Serry, Yahnis; Maroulas, Konstantinos N.; Tolkou, Athanasia K.; Kokkinos, Nikolaos C.; Kyzas, George Z.

doi:10.1016/j.carpta.2024.100466

Cited by 4 publications

(1 citation statement)

References 132 publications

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“…Its reusability stands out as a key advantage in wastewater treatment, promising cost-effectiveness and sustainability ( da Silva Alves et al, 2021 ). Numerous studies have delved into the reusability of chitosan-based adsorbents, consistently showing that chitosan can be regenerated and reused multiple times without compromising its adsorption capacity or performance ( Dago-Serry et al, 2024 ; Kaczorowska and Bożejewicz, 2024 ). Typically, the regeneration process involves desorbing the adsorbed contaminants from the chitosan matrix using appropriate desorbing agents, followed by washing and drying for subsequent reuse ( Soares et al, 2021 ).…”

Section: Resultsmentioning

confidence: 99%

Chitosan extraction from Amanita phalloides: yield, crystallinity, degree of deacetylation, azo dye removal and antibacterial properties

Hemmami,

Ben Amor,

Zeghoud

et al. 2024

Front. Chem.

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Chitosan, a biopolymer obtained from chitin, is known for its remarkable adsorption abilities for dyes, drugs, and fats, and its diverse array of antibacterial characteristics. This study explores the extraction and characterization of chitosan from the mycelium of Amanita phalloides. The moisture content, ash content, water binding capacity, fat binding capacity, and degree of deacetylation of the extracted chitosan were determined. The chitosan exhibited a high yield of 70%, crystallinity of 49.07%, a degree of deacetylation of 86%, and potent antimicrobial properties against both Gram-negative and Gram-positive bacteria. The study also examined the adsorption capabilities of chitosan to remove methylene blue (MB) dye by analysing specific factors like pH, reaction time, and MB concentration using the response surface model. The highest degree of MB dye removal was 91.6% at a pH of 6, a reaction time of around 60 min and an initial dye concentration of 16 ppm. This experimental design can be applied for chitosan adsorption of other organic compounds such as dyes, proteins, drugs, and fats.

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Section: Resultsmentioning

confidence: 99%

Chitosan extraction from Amanita phalloides: yield, crystallinity, degree of deacetylation, azo dye removal and antibacterial properties

Hemmami,

Ben Amor,

Zeghoud

et al. 2024

Front. Chem.

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Protein Purification Using Chitosan‐Modified Polyacrylonitrile Membranes

Andrade,

Leal,

Andrade

et al. 2024

J of Applied Polymer Sci

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Protein purification is essential for biomedical and industrial applications, but current methods often face challenges like low efficiency, high cost, and limited selectivity. To overcome these drawbacks, we developed electrospun polyacrylonitrile (PAN) membranes with chitosan (Cs) and evaluated their ability to capture bovine serum albumin (BSA) and immunoglobulin G (IgG) from aqueous solutions. Comparing PAN/Cs and pristine PAN membranes, we showed Cs significantly enhances BSA adsorption. The membranes were characterized using scanning electron microscopy, Fourier Transform Infrared Spectroscopy, tensile testing, surface area analysis, energy‐dispersive X‐ray spectroscopy, and contact angle measurements. PAN/Cs membranes exhibited smooth, uniform fibers averaging 0.454 μm in diameter. The maximum BSA adsorption capacity () was 75.61 mg g−1 for PAN/Cs and 21.17 mg g−1 for PAN, while for IgG, was 28.83 mg g−1 for PAN/Cs and 19.77 mg g−1 for PAN. SDS‐PAGE electrophoresis confirmed that the eluted proteins maintained their quality and integrity. Elution efficiency of PAN/Cs membranes reached 89.13% for BSA and 62.16% for IgG. Additionally, PAN/Cs membranes selectively captured BSA and IgG when co‐dissolved in aqueous solutions. These results position PAN/Cs electrospun membranes as promising materials for efficient, cost‐effective, and selective protein purification, with potential applications in both biomedical and industrial fields.

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Advancing wastewater treatment: chitin and derivatives for PPCP contaminant mitigation

Atheena,

Basawa,

Raval

2024

Polym. Bull.

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There is a growing threat of wastewater pollution impacting human access to clean water. The surge in pharmaceuticals and personal care products (PPCPs) in such water has reached alarming levels, posing an unprecedented threat to aquatic ecosystems and human health. Conventional wastewater treatment is not specifically tailored to address the presence of PPCPs. This paper examines the possibility of using nano-chitin and chitosan as effective and sustainable adsorbents for the removal of PPCPs from wastewater. The recent progress in functionalized nano-chitin or chitosan composites is reviewed with attention to enhanced adsorption capacity and selectivity toward different classes of PPCPs. Unique features of nano-chitin and chitosan, such as their large surface areas and biocompatibility making them a good choice for PPCP adsorption, are also discussed. Critical evaluation is given about how these nanomaterials absorb PPCPs by looking at various mechanisms like electrostatic interactions, hydrogen bonding, hydrophobic interaction, among others. Finally, future research directions provided for improving performance and scalability of such bio-based adsorbents are discussed. Graphical Abstract

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How the chitosan structure can affect the adsorption of pharmaceuticals from wastewaters: An overview

Cited by 4 publications

References 132 publications

Chitosan extraction from Amanita phalloides: yield, crystallinity, degree of deacetylation, azo dye removal and antibacterial properties

Chitosan extraction from Amanita phalloides: yield, crystallinity, degree of deacetylation, azo dye removal and antibacterial properties

Protein Purification Using Chitosan‐Modified Polyacrylonitrile Membranes

Advancing wastewater treatment: chitin and derivatives for PPCP contaminant mitigation

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