Chitosan/esterified chitin nanofibers nanocomposite films incorporated with rose essential oil: Structure, physicochemical characterization, antioxidant and antibacterial properties

Liu, Yingzhu; Liu, Rongxu; Shi, Jing; Zhang, Rui; Tang, Hongjie; Xie, Cancan; Wang, Fenghui; Han, Jianlin; Jiang, Longwei

doi:10.1016/j.fochx.2023.100714

Cited by 20 publications

(5 citation statements)

References 42 publications

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“…Beyond the hydrogen bonds, the interactions of van der Waals forces, likely stemming from the close packing and alignment of the polymer chains, play a substantial role in enhancing the composite's mechanical resilience. The combined effect of these interactions, especially the enhanced hydrogen bonding introduced by chitosan and the electrostatic interplay between chitosan and esterified chitin nanofibers, supports the observed mechanical behavior of the biocomposite [47][48][49]. Advanced spectroscopic techniques like Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) could provide further insights into these interactions.…”

Section: Resultsmentioning

confidence: 81%

Mechanical Properties of α-Chitin and Chitosan Biocomposite: A Molecular Dynamic Study

Salavati

2023

J. Compos. Sci.

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This study investigates the mechanical properties of α-chitin and chitosan biocomposites using molecular dynamics (MD) and stress–strain analyses under uniaxial tensile loading in an aqueous environment. Our models, validated against experimental data, show that α-chitin has a higher directional elastic modulus of 51.76 GPa in the x and 39.76 GPa in the y directions compared to its chitosan biocomposite, with 31.66 GPa and 26.00 GPa in the same directions, demonstrating distinct mechanical behaviors between α-chitin and the biocomposite. The greater mechanical stiffness of α-chitin can be attributed to its highly crystalline molecular structure, offering potential advantages for applications requiring load-bearing capabilities. These findings offer valuable insights for optimizing these materials for specialized applications.

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Section: Resultsmentioning

confidence: 81%

Mechanical Properties of α-Chitin and Chitosan Biocomposite: A Molecular Dynamic Study

Salavati

2023

J. Compos. Sci.

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Section: Antioxidant Activities Of D-limonene Pesmentioning

confidence: 99%

“…In contrast, D-limonene PE had a higher clearance activity than free D-limonene. This may be understood as emulsification improving the hydrophobicity of D-limonene essential oil, enhancing dispersibility, which can promote full contact between D-limonene and free radicals, and helping to improve its ability to capture free radicals [50]. During the storage process, a series of chain reactions of free radicals can be induced due to the free radicals produced in essential oil under conditions of heat or ultraviolet (UV) light exposure, resulting in severe oxidation of limonene [36].…”

Section: Antioxidant Activities Of D-limonene Pesmentioning

confidence: 99%

Modulation the Synergistic Effect of Chitosan-Sodium Alginate Nanoparticles with Ca2+: Enhancing the Stability of Pickering Emulsion on D-Limonene

Li,

Yong

et al. 2024

Foods

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Pickering emulsions (PEs) have been regarded as an effective approach to sustaining and preserving the bioactivities of essential oils. The aim of this research is to prepare a PE stabilized by chitosan/alginate nanoparticles (CS-SA NPs) for the encapsulation and stabilization of D-limonene. In this work, the influence of calcium ions (Ca2+) on the morphology and interaction of nanoparticles was studied, and then the preparation technology of CS-SA/Ca2+ NPs was optimized. The results showed that the presence of Ca2+ reduced the size of the nanoparticles and made them assume a spherical structure. In addition, under the conditions of 0.2 mg/mL CaCl2, 0.6 mg/mL SA, and 0.4 mg/mL CS, the CS-SA/Ca2+ NPs had the smallest size (274 ± 2.51 nm) and high stability (−49 ± 0.69 mV). Secondly, the PE was prepared by emulsifying D-limonene with CS-SA/Ca2+ NPs, and the NP concentrations and homogenization speeds were optimized. The results showed that the small droplet size PE could be prepared with 2 mg/mL NP and a homogenization speed of 20,000 r/min, and it had excellent antibacterial and antioxidant activities. Most importantly, the emulsion showed higher activity, higher resistance to ultraviolet (UV) and a higher temperature than free D-limonene. This research provides a feasible solution for the encapsulation, protection and delivery of essential oils.

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“…The surface properties of CS/PVA-based CPZ and CPT BNC films were also examined for hydrophilicity by employing static contact angle measurements using the optical contact angle analyzer, SEO Phoenix 150, at room temperature as in our previous study [ 28 ]. The film samples were cut into coupons of dimensions 10 × 10 mm.…”

Section: Characterization Of the Bncs Thin Filmsmentioning

confidence: 99%

Comparative Study of ZnO-and-TiO2-Nanoparticles-Functionalized Polyvinyl Alcohol/Chitosan Bionanocomposites for Multifunctional Biomedical Applications

Annu,

Bhat,

Imtiyaz

et al. 2023

Polymers

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This study aimed to synthesize chitosan/polyvinyl alcohol (CS/PVA)-based zinc oxide (ZnO) and titanium dioxide (TiO2) hybrid bionanocomposites (BNCs) and observe their comparative accomplishment against the skin cancer cell line, A431, and antioxidant potential. CS was blended with PVA to form polymeric films reinforced with the immobilization of ZnO and TiO2 nanoparticles (NPs), separately. The optimization of the BNCs was done via physicochemical studies, viz. moisture content, swelling ratio, and contact angle measurements. The free radical scavenging activity was observed for 1,1-diphenyl-2-picryl-hydrazyl, and the antibacterial assay against the Escherichia coli strain showed a higher zone of inhibition. Furthermore, the anticancer activity of the synthesized BNCs was revealed against the skin cancer cell line A431 under varying concentrations of 50, 100, 150, 200, and 300 μg/mL. The anticancer study revealed a high percent of cancerous cell inhibition (70%) in ZnO BNCs as compared to (61%) TiO2 BNCs in a dose-dependent manner.

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Chitosan/esterified chitin nanofibers nanocomposite films incorporated with rose essential oil: Structure, physicochemical characterization, antioxidant and antibacterial properties

Cited by 20 publications

References 42 publications

Mechanical Properties of α-Chitin and Chitosan Biocomposite: A Molecular Dynamic Study

Mechanical Properties of α-Chitin and Chitosan Biocomposite: A Molecular Dynamic Study

Modulation the Synergistic Effect of Chitosan-Sodium Alginate Nanoparticles with Ca2+: Enhancing the Stability of Pickering Emulsion on D-Limonene

Comparative Study of ZnO-and-TiO2-Nanoparticles-Functionalized Polyvinyl Alcohol/Chitosan Bionanocomposites for Multifunctional Biomedical Applications

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