Magnetically responsive chitosan-pectin films incorporating Fe3O4 nanoparticles with enhanced antimicrobial activity

Zarandona, Iratxe; Correia, Daniela M.; Moreira, Joana; Costa, Carlos M.; Lanceros-Mendez, Senentxu; Guerrero, Pedro; Caba, Koro de la

doi:10.1016/j.ijbiomac.2022.11.286

Cited by 38 publications

(11 citation statements)

References 29 publications

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“…The bands situated at 1062 cm −1 and 1020 cm −1 correspond to the stretching of C-O bonds. All of these bands correlate well with the FTIR spectra of chitosan that were previously published 109 , 110 . The peaks around 3360 cm −1 (N–H),1640 cm −1 (amide I), 1148 cm −1 (C–N), and 1020 cm −1 (C–O) imply that the adsorption of dye was onto the hydroxyl groups of chitosan via covalent bonding 111 .…”

Section: Adsorption Mechanismsupporting

confidence: 85%

A combined experimental and modeling approach to elucidate the adsorption mechanism for sustainable water treatment via In2S3-anchored chitosan

Mishra,

Roy,

Gadore

et al. 2023

Sci Rep

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A novel Chitosan/Indium sulfide (CS/In2S3) nanocomposite was created by co-precipitating Chitosan and InCl3 in solution, resulting in In2S3 agglomeration on the Chitosan matrix with a remarkable pore diameter of 170.384 Å, and characterized it for the physical and chemical properties. Under optimal conditions (pH = 7, time = 60 min, catalyst dosage = 0.24 g L−1, and dye concentration = 100 mg L-1), the synthesized nanocomposite demonstrated remarkable adsorption capabilities for Victoria Blue (VB), attaining a removal efficiency of 90.81%. The Sips adsorption isotherm best matched the adsorption process, which followed pseudo-second-order kinetics. With a rate constant of 6.357 × 10–3 g mg−1 min−1, the highest adsorption capacity (qm) was found to be 683.34 mg g−1. Statistical physics modeling (SPM) of the adsorption process revealed multi-interaction and multi-molecular adsorption of VB on the CS/In2S3 surface. The nanocomposite demonstrated improved stability and recyclability, indicating the possibility for low-cost, reusable wastewater dye removal adsorbents. These results have the potential to have practical applications in environmental remediation.

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Section: Adsorption Mechanismsupporting

confidence: 85%

A combined experimental and modeling approach to elucidate the adsorption mechanism for sustainable water treatment via In2S3-anchored chitosan

Mishra,

Roy,

Gadore

et al. 2023

Sci Rep

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“…The distinctive peaks associated with the P-O and P=O groups are localized at 1,251 cm −1 and 960 cm −1 . Notably, these peaks have shifted to higher regions as compared to the peaks arising from intact melamine phosphate functional groups in Curve “e” ( Zarandona et al, 2023 ). As a result, the Fe 3 O 4 @Cs-MP nanocomposite with several functional groups has the potential to activate the precursors within the reactions current.…”

Section: Resultsmentioning

confidence: 99%

Melamine phosphate-modified magnetic chitosan: a novel biocompatible catalyst for the synthesis of biological tetrahydrodipyrazolopyridine and pyrazolopyranopyrimidine derivatives

Mousavi-Ebadi,

Safaei-Ghomi

2024

Front. Chem.

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A novel biocompatible composite was fabricated by the functionalization of magnetic chitosan with the melamine phosphate (MP) ionic compound to serve as a recoverable and bifunctional catalyst, aiming at the diversity-oriented generation of biological tetrahydropyrazolopyridine and pyrazolopyrimidine derivatives. This involved a meticulously orchestrated reaction, exploiting the in situ generated pyrazole alongside aromatic aldehydes, ammonium acetate, and (thio) barbituric acid. The present work manifests outstanding advantages, offering a novel and great method for the optimal synthesis of two valuable heterocyclic series especially five new derivatives. The resulting novel biocompatible composite was comprehensively characterized through a range of analytical techniques, including FT-IR, NH3 and CO2-TPD, XRD, TEM, FE-SEM, VSM, EDX, elemental CHNS analysis, ICP-MS, and NMR spectroscopy. Notably, the study represents a critical step in the preparation of advanced materials from accessible and cost-effective precursors.

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“…Furthermore, the augmenting surface-to-volume ratio of β-CD/Fe 3 O 4 NPs (56.87 m 2 /g) was attributed to the reduction in crystal size, resulting in a noticeable positive increase in the coercive force ( H ci ) 291.4 g that gauges magnetocrystalline anisotropy. The polymer matrix may experience significant interparticle interaction due to higher magnetization characteristics …”

Section: Resultsmentioning

confidence: 99%

“…The polymer matrix may experience significant interparticle interaction due to higher magnetization characteristics. 43 …”

Section: Resultsmentioning

confidence: 99%

Green Synthesis of Magnetic Supramolecules β-Cyclodextrin/Iron Oxide Nanoparticles for Photocatalytic and Antibacterial Applications

Almutairi,

Al-Rasheed,

Alaqil

et al. 2023

ACS Omega

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Iron oxide nanoparticles (Fe 3 O 4 NPs) are a fascinating field of study due to their wide range of practical applications in environmental and medical contexts. This study presents a straightforward, environmentally friendly method for producing Fe 3 O 4 NPs utilizing β-cyclodextrin (β-CD) as a reducing and capping agent. This approach results in the rapid and effective eco-friendly synthesis of β-CD/Fe 3 O 4 NPs. The properties and characteristics of β-CD/Fe 3 O 4 NPs were investigated using various methods, including ultraviolet−visible (UV/vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetry analysis (TGA), and vibrating-sample magnetometry (VSM). The absorption of β-CD/Fe 3 O 4 NPs caused a distinct peak at 349 nm, as evidenced by the results of UV/vis studies. This peak was attributed to the absorption of surface plasmon resonance. The crystalline nature of β-CD/Fe 3 O 4 NPs was confirmed through XRD analysis. The SEM and TEM analyses have verified the geometry and structural characteristics of β-CD/Fe 3 O 4 NPs. The β-CD/Fe 3 O 4 NPs exhibited remarkable effectiveness in the decomposing efficiency (%) of methylene blue (MB) dye with 52.2, 94.1, and 100% for 0.2, 0.4, and 0.6 g β-CD/ Fe 3 O 4 NPs, respectively. In addition, the highest efficiency in hunting radicals was observed (347.2 ± 8.2 mg/g) at 100 mg/mL β-CD/Fe 3 O 4 NPs; the combination of β-CD/Fe 3 O 4 NPs exhibited remarkable effectiveness in inhibiting the growth of some bacteria that cause infections. The capabilities of β-CD/Fe 3 O 4 NPs for various applications showed that these materials could be used in photocatalytic, antioxidants, and antibacterial. Additionally, the eco-friendly synthesis of these materials makes them a promising option for the remediation of harmful pollutants and microbes.

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Magnetically responsive chitosan-pectin films incorporating Fe3O4 nanoparticles with enhanced antimicrobial activity

Cited by 38 publications

References 29 publications

A combined experimental and modeling approach to elucidate the adsorption mechanism for sustainable water treatment via In2S3-anchored chitosan

A combined experimental and modeling approach to elucidate the adsorption mechanism for sustainable water treatment via In2S3-anchored chitosan

Melamine phosphate-modified magnetic chitosan: a novel biocompatible catalyst for the synthesis of biological tetrahydrodipyrazolopyridine and pyrazolopyranopyrimidine derivatives

Green Synthesis of Magnetic Supramolecules β-Cyclodextrin/Iron Oxide Nanoparticles for Photocatalytic and Antibacterial Applications

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