Fabrication and conductivity study of silver nanoparticles loaded polyvinyl alcohol (PVA-AgNPs) nanofibers

Krishna, K.; Harisha, K. S.; Neelakandan, R.; Sangappa, Y.

doi:10.1016/j.matpr.2020.10.481

Cited by 10 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various antimicrobial agents are being researched and developed in the biomedical industry to treat and prevent diseases. [ 10 ] Among metal oxide powders, ZnO NP shows inhibition property for the significant growth of a broad spectrum of bacteria. The proposed mechanism for the antibacterial activity of ZnO NP is mainly based on the catalysis of the formation of reactive oxygen species from water and oxygen.…”

Section: Introductionmentioning

confidence: 99%

Cross‐linked electrospun polyvinyl alcohol/sodium caseinate nanofibers for antibacterial applications

Şendil

Yılmaz

Özçelik

et al. 2022

Vinyl Additive Technology

View full text Add to dashboard Cite

In this study, the polyvinyl alcohol (PVA) and sodium caseinate (SC) nanofibers were produced by a single-fluid electrospinning method from their blends. Afterward, the cross-linking process with two different methods was applied to the PVA/SC (70/30, v/v) ratio, which was selected according to the surface and mechanical properties of the electrospun mat. In the first method, different ratios (15%, 20%, 25%, and 30%) of glutaraldehyde (GLA) cross-linking agents were added to the PVA/SC solution and then, PVA/SC/ GLA nanofibers were obtained. In the second method (in-situ method), the nanofibers obtained from the PVA/SC solution were cross-linked by dipping into the cross-linking solution. After, PVA/SC/GLA/Zinc oxide nanoparticles (ZnO NP) mats were obtained by adding ZnO NP at different rates to the PVA/SC/GLA (7030-25GLA) solution, which was chosen according to the results of thermal, mechanical, and moisture test. In addition, performing tests, a cytotoxicity test for fibroblast cell line (L929), and in vitro antibacterial test for Escherichia coli and Staphylococcus aureus were also applied to them.

show abstract

Section: Introductionmentioning

confidence: 99%

Cross‐linked electrospun polyvinyl alcohol/sodium caseinate nanofibers for antibacterial applications

Şendil

Yılmaz

Özçelik

et al. 2022

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

“…This situation was associated with the decrease in the absorbance value as the amount of Ag NP in the structure increased. The decrease in absorbance value has explained by the chemical bonding of the side chains between PVA and Ag NP 42 …”

Section: Resultsmentioning

confidence: 99%

“…The decrease in absorbance value has explained by the chemical bonding of the side chains between PVA and Ag NP. 42 3.3 | TGA results for all PVA/NaCAS nanofibers TGA curves giving information about the decomposition temperatures and derivative curves of TGA are given in Figure 4A,B, respectively. The numerical values of the decomposition temperatures are also given in Table S1.…”

Section: Ftir Spectrum Of All Pva/nacas Nanofibersmentioning

confidence: 99%

Development of cross‐linked polyvinyl alcohol/sodium caseinate/silver nanoparticle electrospun mats for antibacterial wound dressing

Samatya Yılmaz,

Aytac

2024

Vinyl Additive Technology

View full text Add to dashboard Cite

In this study, nanofibers were produced by the electrospinning method by adding 1%, 3%, 5%, and 7% silver nanoparticles (Ag NPs) into the polyvinyl alcohol/sodium caseinate (60/40, w/w) mixture. Electrospun materials were cross‐linked by immersion in a glutaraldehyde bath. Thus, antibacterial wound dressings that could be used on exuding wounds were developed. According to the scanning electron microscopy images of nanofibers, the cross‐linking process by immersion method did not cause negative effects such as breakage or adhesion on the surface of fibers. The cross‐linking of nanofibers was demonstrated by the presence of acetal linkages by Fourier‐transform infrared spectroscopy analysis. The cross‐linking process significantly improved the thermal properties of the nanofibers. The lowest crystallinity calculated in the differential scanning calorimeter was observed in the 3% Ag NP‐added nanofiber with a value of 1.83%. It exhibited the lowest total soluble matter content with a value of 11.98% owing to its high cross‐linking density. In addition, the 3% Ag NP‐added nanofiber, which had the highest toughness and ductility, displayed the highest tensile stress with 3.5 MPa and the highest tensile strain with 7.53%. Moreover, it showed 78.11% cell viability on the L929 fibroblast cell line at the end of the 24th hour. It was indicated that although the electrospun mats maintained 100% antibacterial effectiveness, they could not be used as a wound dressing for 48 h. It was reported that only 3% Ag NP‐added nanofiber could be used as a 100% effective antibacterial wound dressing for both Escherichia coli and Staphylococcus aureus provided that it was renewed every 24 h. Consequently, it was notified that cross‐linking by the immersion method can be used in biomedical applications.Highlights The antibacterial effects of Ag NP‐doped PVA/NaCAS electrospun mats were significant. The cross‐linking process did not induce toxic effects some of the nanofibers. High cross‐linking density was observed in the nanofibers. The swelling property of nanofibers is a good feature required in an ideal wound dressing.

show abstract

“…Moreover, the integration of SPIONs with noble metals, such as Pt, Au, and Ag, introduces enhanced functionalities [1,8,9]. AgNPs, known for their antibacterial efficacy and electrical conductivity, are promising candidates for application in wound healing and as conductive materials [10,11]. However, their practical use is often limited by challenges such as recovery after application, prompting research on composite structures such as Fe 3 O 4 @Ag.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver-Decorated Magnetite Nanoparticles Using Self-Assembly Methods

2024

Processes

View full text Add to dashboard Cite

This study investigated the synthesis and functional characteristics of Fe3O4@Ag core–shell nanoparticles, focusing on the impact of amino functionalization on their structural and chemical properties. Utilizing self-assembly methods driven by electrostatic interactions, we achieved the effective adsorption of Ag nanoparticles into Fe3O4 cores previously modified with silane (APTES) or polymer (PEI) precursors. Our results elucidate how the type of amino precursor affects the surface charge and subsequent adsorption dynamics, revealing that PEI-modified Fe3O4 nanoparticles exhibit more substantial Ag nanoparticle adsorption than those modified with APTES. This enhanced adsorption was attributed to the higher density of the amine groups introduced by PEI, which also affected the electrostatic properties of the nanoparticles, as evidenced by their zeta-potential values. Moreover, this study highlighted the role of electrostatic attraction in the self-assembly process, facilitating a controlled synthesis environment that enhances the stability and functionality of nanoparticles for potential biomedical and catalytic applications. This research not only advances our understanding of nanoparticle behavior under different surface chemistries but also demonstrates the importance of surface engineering in optimizing nanoparticle performance for targeted applications.

show abstract

Fabrication and conductivity study of silver nanoparticles loaded polyvinyl alcohol (PVA-AgNPs) nanofibers

Cited by 10 publications

References 34 publications

Cross‐linked electrospun polyvinyl alcohol/sodium caseinate nanofibers for antibacterial applications

Cross‐linked electrospun polyvinyl alcohol/sodium caseinate nanofibers for antibacterial applications

Development of cross‐linked polyvinyl alcohol/sodium caseinate/silver nanoparticle electrospun mats for antibacterial wound dressing

Synthesis of Silver-Decorated Magnetite Nanoparticles Using Self-Assembly Methods

Contact Info

Product

Resources

About