Effect on the processability, structure and mechanical properties of highly dispersed in situ ZnO:CS nanoparticles into PVA electrospun fibers

Santiago-Castillo, Karina; Ángel-López, D. Del; Torres‐Huerta, A.M.; Domínguez‐Crespo, M.A.; Palma‐Ramírez, D.; Willcock, Helen; Brachetti-Sibaja, S.B.

doi:10.1016/j.jmrt.2021.01.049

Cited by 16 publications

(17 citation statements)

References 65 publications

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“…These results reveal that the functional groups of PVA do not interact significantly with Ag NPs, with the exception of the carbonyl group that is part of the acetyl group, where a slight shift (~12 cm −1 ) was observed due to the addition effect of Ag NPs. The results confirm that there exists a strong interaction between CTS and inorganic nanostructures, and this prevails after the electric field applied during the electrospinning process, which is stronger than that observed for ZnO nanostructures in similar systems [49].…”

Section: Structural Propertiessupporting

confidence: 69%

“…The broad band between 3500 and 3200 cm −1 is characteristic of the stretching of the −NH 2 groups overlapped with OH − groups [57]. In comparison with our previous study, where ZnO ceramic NPs (CTS-ZnO NPs) were added [49], a significant widening and shifting towards higher wavenumbers was observed at 3563 cm −1 (red shift). The displacement suggested an interaction between NH 2 groups of CTS and Ag NPs.…”

Section: Chemical Structural and Optical Propertiescontrasting

confidence: 38%

“…The electrospun fibers mats were prepared using as a reference the conditions reported in a previous work by the research team in which PVA-CTS-ZnO NPs electrospun fibers were produced [49]. An 8 wt% PVA solution was prepared in distilled water at 90 • C, which was stirred for 2 h and a 2 wt% CTS solution was prepared into a 2 wt% acetic acid solution.…”

Section: Preparation Of Pva-cts and Pva-cts-ag Nps Electrospun Fibersmentioning

confidence: 99%

“…In recent years, it has been shown that the incorporation of pure or ceramic NPs such as Ag [43,44], TiO 2 [45], CeO 2 [46,47] and ZnO [48][49][50] into natural polymer matrices, during the processing of hybrid natural nanofibers, can improve the wound healing process and be used as dressing materials. In particular, it has been established that the addition of Cu NPs into the PVA-CTS system improves the rate of wound closure.…”

Section: Introductionmentioning

confidence: 99%

“…Based on previous developments, the goal of this work was carried out the in situ synthesis of Ag NPs into a solution of CTS blended with high molecular weight PVA for the production of electrospun fibers in order to analyze changes on the microstructural, mechanical, antibacterial properties and to confirm the potential application for the treatment of wounds and/or burns. In addition, the results are compared with a similar system previously reported, PVA-CTS-ZnO NPs, to evaluate changes on these properties depending upon the nanoparticle-type [49].…”

Section: Introductionmentioning

confidence: 99%

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In Situ Growth of Silver Nanoparticles on Chitosan Matrix for the Synthesis of Hybrid Electrospun Fibers: Analysis of Microstructural and Mechanical Properties

et al. 2022

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A viable alternative for the next generation of wound dressings is the preparation of electrospun fibers from biodegradable polymers in combination with inorganic nanoparticles. A poly(vinyl alcohol)-chitosan-silver nanoparticles (PVA-CTS-Ag NPs) system has been developed for antimicrobial and wound healing applications. Here, the preparation of PVA-CTS-Ag electrospun fibers using a two-step process is reported in order to analyze changes in the microstructural, mechanical, and antibacterial properties and confirm their potential application in the biomedical field. The Ag nanoparticles were well-dispersed into the chitosan matrix and their cubic structure after the electrospinning process was also retained. The Ag NPs displayed an average diameter of ~33 nm into the CTS matrix, while the size increased up to 213 nm in the PVA-CTS-Ag(NPs) fibers. It was observed that strong chemical interactions exist between organic (CTS) and inorganic phases through nitrogenous groups and the oxygen of the glycosidic bonds. A defect-free morphology was obtained in the PVA-CTS-Ag NPs final fibers with an important enhancement of the mechanical properties as well as of the antibacterial activity compared with pure PVA-CTS electrospun fibers. The results of antibacterial activity against E. coli and S. aureus confirmed that PVA-CTS-Ag(NPs) fibers can be potentially used as a material for biomedical applications.

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Section: Structural Propertiessupporting

confidence: 69%

Section: Chemical Structural and Optical Propertiescontrasting

confidence: 38%

Section: Preparation Of Pva-cts and Pva-cts-ag Nps Electrospun Fibersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In Situ Growth of Silver Nanoparticles on Chitosan Matrix for the Synthesis of Hybrid Electrospun Fibers: Analysis of Microstructural and Mechanical Properties

et al. 2022

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Unlocking the power of nature: Safeguarding refrigerated camel meat with herb‐extracted (Anethum graveolens leaves) zinc nanoparticles

Gharehyakheh

2023

Applied Organom Chemis

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The utilization of zinc nanoparticles as a bacterial protective layer in the food industry is highly favored. Additionally, the presence of antioxidant and polyphenol compounds in certain herbs can enhance this protective effect. In this study, zinc nanoparticles were synthesized using a green method involving the extract of Anethum graveolens leaves. To assess their antibacterial protection on camel meat against Escherichia coli O157:H7 and Listeria monocytogenes, three protective materials (A. graveolens L., ZnNPs, and Zn [NO3]2) were evaluated at concentrations ranging from 0% to 1% over a period of 20 days. The results demonstrated that ZnNPs (1%) exhibited the best performance, leading to a reduction in the microbial population (Log CFU g−1) of E. coli O157:H7 and L. monocytogenes from 5 to 2.4 and 2.6, respectively. A. graveolens L. extract was the second most effective protective agent. However, it was observed that higher concentrations of all tested substances resulted in improved protection. For instance, the reduction in E. coli O157:H7 count decreased from 5 to 3.25 (Log CFU g−1) with A. graveolens L. (1%), while for L. monocytogenes, it decreased from 5 to 3.5 (Log CFU g−1). Moreover, parameters such as peroxide value (PV), pH, protein carbonyl content, total volatile basic nitrogen (TVB‐N), and thiobarbituric acid reactive substances (TBARS) were effectively controlled, preventing rapid increases. The protective effect of the meat led to lower values of these parameters compared with the control sample. Cytotoxicity assessments confirmed the non‐toxic nature of both A. graveolens L. and ZnNPs. Overall, the findings of this study highlight the potential of combining chemical methods with natural materials to significantly enhance the effectiveness of ZnNPs, ensuring the health and quality of food products.

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Development of (polyvinylpyrrolidone/chitsoan/citric acid)/(zinc oxide‐nanoparticles) bionanocomposite films and their applications in biodegradation and antimicrobial activity

Awadallah‐F,

Aboulfotouh,

Ali

et al. 2023

Polymer Engineering & Sci

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Biofilm and bionanocomposite films were synthesized from polyvinylpyrrolidone (PVP), chitosan (CS), citric acid (CA), and zinc oxide‐nanoparticles (ZnO‐NPs). Effects of gamma‐irradiation dose and ZnO‐NPs concentrations; 0, 0.1, 0.3, 0.6, 0.9, 1.2, and 1.5 (wt./wt.)% were studied. Biofilms and bionanocomposite films were characterized by Fourier transform infrared, Raman spectroscopy, transmission electron microscopy, thermal gravimetric analysis, X‐rays diffraction, energy dispersive X‐ray, and mechanical properties to identify structure of biofilm and bionanocomposite films. Swelling (g/g)% and gelation (g/g)% of biofilms were carried out at diverse compositions of PVP to CS of (1/1), (1/2), and (2/1) (v/v). Swelling (g/g)% results of (1/1), (1/2), and (2/1) (v/v) were 116, 110, and 126, respectively. Values of highest and lowest gelation (g/g)% of (1/2) and (2/1) (v/v) are 98.0 ± 1.8 and 85.0 ± 2.6, respectively at 30 kGy. Water vapor transmission rate was studied for films and exposed 3450 ± 4.1 and 185.8 ± 1.2 (kg/m2.day) for open bottle and (PVP/CS/PCA)/(ZnO‐NPs‐1.5), respectively. Values of water solubility (g/g)% were investigated and found 30.21 ± 1.3 and 15.4 ± 2.5 for (PVP/CS/PCA)/(ZnO‐NPs‐0) and (PVP/CS/PCA)/(ZnO‐NPs‐1.5), accordingly. Bionanocomposite films displayed a broad‐spectrum antimicrobial activity against Gram‐negative bacteria and Gram‐positive bacteria. (PVP/CS/PCA)/(ZnO‐NPs‐0.1) showed lowest inhibition zone; 4 ± 0.2, 9 ± 0.5, 19 ± 0.1, and 8 ± 0.3 (mm) compared with (PVP/CS/PCA)/(ZnO‐NPs‐1.5) of highest inhibition zone; 16 ± 0.5, 28 ± 0.2, 33 ± 0.6, and 18 ± 0.3 (mm) for Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, and Staphylococcus aureus, respectively. Antimicrobial activity increased with increasing ZnO‐NPs concentrations. Biodegradation of biofilms and bionanocomposite films were examined under soil from 0 to120 days. Results of weight loss (g/g)% at 120 days of (PVP/CS/PCA)/(ZnO‐NPs‐0) and (PVP/CS/PCA)/(ZnO‐NPs‐1.5) are 72 ± 4.5 and 47.5 ± 3.8, respectively. Bionanocomposite films were used in food preservation of fresh cherry tomatoes for 30 days and showed goodness. Therefore, these results suggest that the possibility of using bionanocomposite films in food‐packaging applications.Highlights Synthesis of development of (polyvinylpyrrolidone/chitsoan/citric acid)/(zinc oxide‐nanoparticles) bionanocomposite films. Characterization of bionanocomposite films by different techniques. Study of biodegradation of bionanocomposite films. Study of antimicrobial of bionanocomposite films. Usage of bionanocomposite films in cherry tomatoes preservation for 30 days.

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Effect on the processability, structure and mechanical properties of highly dispersed in situ ZnO:CS nanoparticles into PVA electrospun fibers

Cited by 16 publications

References 65 publications

In Situ Growth of Silver Nanoparticles on Chitosan Matrix for the Synthesis of Hybrid Electrospun Fibers: Analysis of Microstructural and Mechanical Properties

In Situ Growth of Silver Nanoparticles on Chitosan Matrix for the Synthesis of Hybrid Electrospun Fibers: Analysis of Microstructural and Mechanical Properties

Unlocking the power of nature: Safeguarding refrigerated camel meat with herb‐extracted (Anethum graveolens leaves) zinc nanoparticles

Development of (polyvinylpyrrolidone/chitsoan/citric acid)/(zinc oxide‐nanoparticles) bionanocomposite films and their applications in biodegradation and antimicrobial activity

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