Update on modified chitosan frameworks and their applications for food, wastewater, toxic heavy metals, dyes treatment and cancer drug delivery

Sahdev, Anil Kumar; Raorane, Chaitany Jayprakash; Shastri, Divya; Raj, Vinit; Singh, Anita; Kim, Seong Cheol

doi:10.1016/j.jece.2022.108656

Cited by 14 publications

(5 citation statements)

References 230 publications

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“…Chitosan-based adsorbents are also highly effective at removing heavy metals, organic pollutants, and dyes from wastewater. They can be used in a wide range of applications, including in the food [172], pharmaceutical [173], and textile industries [174]. iii.…”

Section: Advantages Challenges and Future Of Chitosan-based Adsorbentmentioning

confidence: 99%

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Munirah Muhaidin,

Fatin Hana Naning,

Juniza Md Saad

et al. 2024

ARMNE

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One prominent contributor to environmental degradation is the presence of heavy metal ions, which are commonly introduced into ecosystems through diverse channels, including mining operations, paint manufacturing, battery production, and agricultural practises. The unprocessed waste from these industries typically undergoes direct discharge into rivers and seas, thereby adversely influencing the potable water supply and marine ecosystem. This results in the accumulation of heavy metals within living organisms and subsequent environmental degradation that poses a significant risk to human health, as their prolonged consumption can harm various organs and the nervous system. Therefore, the United States Environmental Protection Agency (US-EPA) and the World Health Organisation (WHO) have established stringent regulations regarding the allowable levels of heavy metal intake, particularly concerning potable water consumption. The imperative lies in surmounting this challenge by discovering the optimal technique for extracting heavy metals. This paper examines the primary methods of eliminating heavy metal ions using chitosan-based materials. Specifically, the methods under scrutiny include electrocoagulation (E.C.), bioremediation, ion-exchange, membrane filtration (purification), and adsorption. Adsorption, as a highly efficient method, presents itself as a viable strategy for the remediation of dyes in textile wastewater due to its advantageous characteristics. Notably, this approach obviates the need for extensive spatial requirements and exhibits a commendably swift treatment duration. Chitosan exhibits promising adsorptive characteristics owing to its advantageous physical attributes, including crystalline structure, porous nature, and particle dimensions, all of which synergistically enhance the adsorption capacity of chitosan. Research findings indicate that the adsorption characteristics of chitosan are subject to variation contingent upon the distinct heavy metal ions under consideration and the specific experimental parameters employed. Hence, optimising these parameters becomes imperative to attain enhanced chitosan adsorption capabilities for heavy metal ion removal.

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Section: Advantages Challenges and Future Of Chitosan-based Adsorbentmentioning

confidence: 99%

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Munirah Muhaidin,

Fatin Hana Naning,

Juniza Md Saad

et al. 2024

ARMNE

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“…Среди основных достоинств хитозановых сорбентов отмечают: нетоксичность, биодеградируемость, доступность, высокие емкостные и кинетические показатели сорбции [8].…”

Section: те никифорова ва габрин ва козловunclassified

Sorption of copper (II) ions by a composite sorbent based on chitosan and montmorillonite

Nikiforova,

Gabrin,

Kozlov

2023

Plastičeskie massy

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A composite sorbent based on chitosan and montmorillonite has been developed for the extraction of heavy metal ions from aqueous solutions. The optimal chitosan / montmorillonite ratio for obtaining sorbent granules has been determined. Equilibriumkinetic studies of the process of copper (II) ions extraction in the heterophase system "aqueous solution of metal sulphate - modified sorbent" have been carried out.The treatment of sorption isotherms of copper (II) ions by the initial chitosan and a chitosan based composite according to the Langmuir equation made it possible to determine the maximum sorption capacities of these materials (А∞). It has been established that A∞ of the chitosan/montmorillonite composite sorbent exceeds the maximum sorption capacity for the original chitosan by more than two times.The effect of pH on the sorption of copper ions by chitosan-based sorbents is due to the competition of metal cations and protons for sorption sites. In the course of competitive chemisorption, protons deactivate amino groups - the main sorption centers, converting them into an inactive, H-salt form, which leads to a decrease in the sorption capacity of chitosan in relation to copper ions.Changes in the composition of the modified sorbent compared to the original chitosan are confirmed by infrared spectroscopy data. Microscopic studies using the method of scanning electron microscopy show the presence of changes in the surface structure of chitosan granules when montmorillonite is introduced into the composition of the sorbent.

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“…The ongoing search for molecules with intrinsic antimicrobial activity is critical for both the prevention and treatment of Candida infections. Chitosan is a naturally occurring polysaccharide biopolymer with remarkable biological features, such as non-toxicity, biodegradability, and biocompatibility, making it a great choice for biomedical applications [103][104][105][106][107]. Chitosan also has antibacterial action against a variety of microorganisms, including algae, fungi, and bacteria.…”

Section: Chitosan-based Hydrogels For Antifungal Applicationsmentioning

confidence: 99%

Update on Chitosan-Based Hydrogels: Preparation, Characterization, and Its Antimicrobial and Antibiofilm Applications

Thirupathi¹,

Raorane

Vanaraj

et al. 2022

Gels

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Chitosan is a prominent biopolymer in research for of its physicochemical properties and uses. Each year, the number of publications based on chitosan and its derivatives increases. Because of its comprehensive biological properties, including antibacterial, antioxidant, and tissue regeneration activities, chitosan and its derivatives can be used to prevent and treat soft tissue diseases. Furthermore, chitosan can be employed as a nanocarrier for therapeutic drug delivery. In this review, we will first discuss chitosan and chitosan-based hydrogel polymers. The structure, functionality, and physicochemical characteristics of chitosan-based hydrogels are addressed. Second, a variety of characterization approaches were used to analyze and validate the physicochemical characteristics of chitosan-based hydrogel materials. Finally, we discuss the antibacterial, antibiofilm, and antifungal uses of supramolecular chitosan-based hydrogels. This review study can be used as a base for future research into the production of various types of chitosan-based hydrogels in the antibacterial and antifungal fields.

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Update on modified chitosan frameworks and their applications for food, wastewater, toxic heavy metals, dyes treatment and cancer drug delivery

Cited by 14 publications

References 230 publications

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Sorption of copper (II) ions by a composite sorbent based on chitosan and montmorillonite

Update on Chitosan-Based Hydrogels: Preparation, Characterization, and Its Antimicrobial and Antibiofilm Applications

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