AgNPs incorporated on deacetylated electrospun cellulose nanofibers and their effect on the antimicrobial activity

Kalwar, Kaleemullah; Hu, Lin; Li, Dali; Shan, Dan

doi:10.1002/pat.4127

Cited by 37 publications

(18 citation statements)

References 37 publications

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“…On one hand, the present molecular configuration can result in excellent mechanical properties of bacterial cellulose. Taking into account this fact, most of the previous works have exploited the beneficial properties of cellulose acetate as precursor material to form deacetylated cellulose (Kalwar et al, 2018;Khatri et al, 2012). Taking into account this fact, most of the previous works have exploited the beneficial properties of cellulose acetate as precursor material to form deacetylated cellulose (Kalwar et al, 2018;Khatri et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, this molecular hydrogen bonding arrangement in the cellulose can reduce the solubility in different organic and inorganic solvents, that further can limit its properties to form nanofibers by electrospinning (Rodríguez et al, 2012). Taking into account this fact, most of the previous works have exploited the beneficial properties of cellulose acetate as precursor material to form deacetylated cellulose (Kalwar et al, 2018;Khatri et al, 2012). Basically, cellulose acetate is synthetic precursor of cellulose and post fabrication the resultant nanofibers can easily be subjected to deacetylation for expulsion of acetyl groups without effecting the final nanofiber morphology (Ma et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Among others, the silver (Ag) NPs are the front-runners to augmentor enhance the antibacterial potential of fabricated fibers (Kalwar et al, 2018). Recently nylon-6 nanofiber mats were fabricated encasing the TiO 2 and Ag NPs, the presence of NPs helped in imparting antibacterial properties, improved the mechanical strength and resulted in UV blocking ability to the nanofibers .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Ashraf

Sofi

Akram

et al. 2020

J Biomedical Materials Res

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In the present work, a novel strategy was explored to fabricate nanofiber scaffolds consisting of cellulose assimilated with titanium dioxide (TiO 2 ) and silver (Ag) nanoparticles (NPs). The concentration of the TiO 2 NPs in the composite was adjusted to 1.0, 1.5, and 2.0 wt % with respect to polymer concentration used for the electrospinning of colloidal solutions. The fabricated composite scaffolds were dispensed to alkaline deacetylation using 0.05 M NaOH to remove the acetyl groups in order to generate pure cellulose nanofibers containing TiO 2 NPs. Moreover, to augment our nanofiber scaffolds with antibacterial activity, the in situ deposition approach of using Ag NPs was utilized with varied molar concentrations of 0.14, 0.42, and 0.71 M. The physicochemical properties of the nanofibers were identified by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) and contact angle meter studies. This demonstrated the presence of both TiO 2 and Ag NPs and complete deacetylation of nanofibers. The antibacterial efficiency of the nanofibers was scrutinized against Escherichia coli and Staphylococcus aureus, revealing proper in situ deposition of Ag NPs andconfirming the nanofibers are antibacterial in nature. The biocompatibility of the scaffolds was accustomed using chicken embryo fibroblasts, which confirmed their potential role to be used as wound-healing materials. Furthermore, the fabricated scaffolds were subjected to analysis in simulated body fluid at 37 C to induce mineralization for future osseous tissue integration. These results indicate that fabricated composite nanofiber scaffolds with multifunctional characteristics will have a highest potential as a future candidate for promoting new tissues artificially. K E Y W O R D S3D scaffolds, antibacterial properties, electrospinning nanofibers, tissue engineering, bone mineralization

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Ashraf

Sofi

Akram

et al. 2020

J Biomedical Materials Res

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“…Results showed 16 and 14.4 mm of inhibition zone diameters at 1% Ag nanoparticles content against E. coli and S. aureus, respectively. Also, it was proven that increasing of Ag nanoparticle contents increased antibacterial activities 86 .…”

Section: Electrospun Nanofiber Containing Silvermentioning

confidence: 99%

Untitled

2019

IJPSR

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This study aimed to introduce antibacterial nanofibers, produced by electrospinning as a novel technique in constructing nanostructured materials. In the electrospinning technique, a high voltage is applied to a polymer solution to overcome the surface tension. A charged polymer jet is ejected to a grounded electrode. As the solvent is evaporated, the electrospun fiber with diameter from micrometer to nanometer is formed. One of the most important features of electrospun nanofibers stated in this paper is their activity as effective carriers of antibacterial substances, which leads to the use of them in many fields such as food packaging, drug delivery, wound healing, filtration, and food sciences. An electrospun nanofiber containing antimicrobial agents indicates excellent antibacterial functions against a wide spectrum of bacteria and sustain the antibacterial activity over a long period. In general, several aspects of antibacterial nanofibers, including synthesize, applications, types of antibacterial agents combined with them such as essential oils, herbal bioactive components, metals, drugs, and peptides have been stated.

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“…They tested the antibacterial activity of these nanofibers against Escherichia coli and Staphylococcus aureus bacteria by allowing 18 h contact of nanofibers with bacteria. By using 1% Ag loaded nanofibers, a 14.4 mm zone of inhibition was observed against S. aureus and 16 mm against E. coli [ 25 ]. A similar study was conducted by Ahir et al, they loaded copper nanoparticles with electrospun nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Promising Antimicrobial Aloe Vera/PVA Electrospun Nanofibers for Protective Clothing

et al. 2020

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In the present condition of COVID-19, the demand for antimicrobial products such as face masks and surgical gowns has increased. Because of this increasing demand, there is a need to conduct a study on the development of antimicrobial material. Therefore, this study was conducted on the development of Aloe Vera and Polyvinyl Alcohol (AV/PVA) electrospun nanofibers. Four different fibers were developed by varying the concentrations of Aloe vera (0.5%, 1.5%, 2.5%, and 3%) while maintaining the concentration of PVA constant. The developed samples were subjected to different characterization techniques such as SEM, FTIR, XRD, TGA, and ICP studies. After that, the antimicrobial activity of the developed Aloe Vera/PVA electrospun nanofibers was checked against Gram-positive (Staphylococcus aureus) bacteria and Gram-negative (Escherichia coli) bacteria. The developed nanofibers had high profile antibacterial activity against both bacteria, but showed excellent results against S. aureus bacteria as compared with E. coli. These nanofibers have potential applications in the development of surgical gowns, gloves, etc.

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AgNPs incorporated on deacetylated electrospun cellulose nanofibers and their effect on the antimicrobial activity

Cited by 37 publications

References 37 publications

Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Untitled

Fabrication of Promising Antimicrobial Aloe Vera/PVA Electrospun Nanofibers for Protective Clothing

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AgNPs incorporated on deacetylated electrospun cellulose nanofibers and their effect on the antimicrobial activity

Cited by 37 publications

References 37 publications

Fabrication of multifunctional cellulose/TiO2/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Fabrication of multifunctional cellulose/TiO2/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Untitled

Fabrication of Promising Antimicrobial Aloe Vera/PVA Electrospun Nanofibers for Protective Clothing

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Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications

Fabrication of multifunctional cellulose/TiO₂/Ag composite nanofibers scaffold with antibacterial and bioactivity properties for future tissue engineering applications