Ex-situ fabrication of ZnO nanoparticles coated silk fiber for surgical applications

Shubha, Priya Babu; Gowda, Mahadeva; Namratha, K.; Shyamsunder, S.; Manjunatha, H.; Byrappa, K.

doi:10.1016/j.matchemphys.2019.04.012

Cited by 35 publications

(24 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is widely acknowledged that zinc oxide (ZnO), with its extraordinary photocatalytic activity, chemical stability under UV radiation exposure, thermal stability, and absorption of a broad range UV radiation [ 1 , 2 ] can have broad application in many industries. In the past decade, ZnO has been widely researched also in the textile industry, because when ZnO-NP are applied on textiles, they provide excellent UV blocking, antimicrobial, photocatalytic self-cleaning, hydrophobic, and flame-retardant properties [ 3 , 4 , 5 ]. There are two main methods of chemical production of ZnO-NP and their application on textiles, i.e., ex situ and in situ synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…There are two main methods of chemical production of ZnO-NP and their application on textiles, i.e., ex situ and in situ synthesis. The ex situ is a two-step process, where in the first step, a synthesis of ZnO-NP is performed as a separate reaction between Zn-precursor and precipitating/reducing agent, followed by calcination, and in the second step, the dispersion of formed ZnO-NP is prepared in a separate bath and coated on textiles [ 4 ]. In situ synthesis is a one-step process, in which the synthesis of nanoparticles and their deposition on the surface of the substrate are carried out simultaneously [ 6 , 7 , 8 ], which leads to a reduction of processing steps and saves energy, time, and cost.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Green In Situ Synthesis of ZnO Nanoparticles on Cotton Using Pomegranate Peel Extract

et al. 2021

View full text Add to dashboard Cite

This work presents the novel and entirely green in situ synthesis of zinc oxide nanoparticles (ZnO-NP) on cotton fabric. Pomegranate peel extract was used as a reducing agent and wood ash extract was used as an alkali source for the formation of ZnO-NP from zinc acetate. Four different synthesis methods, which varied in drying between immersion of fabric in the active solutions for synthesis and the use of padding and ultrasonication, were investigated to evaluate the most suitable one to achieve excellent ultraviolet (UV) protective properties of the functionalized textile. For comparison, the cotton fabrics were also functionalized with each active solution separately or in a combination of two (i.e., Zn-acetate and plant extract). Scanning electron microscopy (SEM), inductively coupled plasma mass spectroscopy (ICP-MS), Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD) analysis, and atomic force microscopy (AFM) confirm the successful formation of ZnO-NP on cotton. Among the synthesis methods, the method that included continuous drying of the samples between immersion in the active solutions for synthesis (Method 4) was found to be the most suitable to deliver uniformly impregnated cotton fibers with numerous small ZnO wurtzite structured crystals and excellent UV protection, with a UV protection factor of 154.0. This research presents an example of a green circular economy where a bio-waste material can be used to produce ZnO-NP directly on cotton at low temperatures and short treatment times without the addition of chemicals and enables the production of cellulosic fabrics with excellent UV protection.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Green In Situ Synthesis of ZnO Nanoparticles on Cotton Using Pomegranate Peel Extract

et al. 2021

View full text Add to dashboard Cite

show abstract

“…For this study ZnO nanoparticles of a mean size 29 nm were prepared and used. In order to introduce the antimicrobial property [16], ZnO nanoparticles (NPs) were uniformly deposited on the surface of the hydrogel-grafted Tasar silk fibroin dressing by high-intensity ultrasound. The physical, mechanical, morphological, cytocompatibility, and cytotoxic properties of the ZnO oxide nanoparticle-coated hydrogel grafted on the silk fibroin dressing were studied in order to check their efficacy for wound dressing application.…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles Functionalized on Hydrogel Grafted Silk Fibroin Fabrics as Efficient Composite Dressing

et al. 2020

View full text Add to dashboard Cite

Recent advances in woundcare is targeted towards developing active-dressings, where multiple components are combined to provide a suitable environment for rapid healing. The aim of the present research is to study the preparation of biomimic composite wound dressings by the grafting of hydrogel on silk fibroin fabric. The swelling ability of hydrogel grafted silk fibroin fabric was optimized by changing the initiator concentration. In order to impart antimicrobial properties, these dressing are further coated sono-chemically with zinc oxide nanoparticles. The water vapor transmission rate of the prepared samples was measured. The conformation of silk fibroin proteins after grafting with hydrogel was also confirmed using Fourier Transform Infrared Spectroscopy (FTIR). The morphology of the zinc oxide-coated silk fibroin fabric and hydrogel-coated silk fibroin was studied using Scanning Electron Microscope (SEM). The antimicrobial activity of the zinc oxide-coated samples was studied against E coli. The cytocompatibility of the prepared dressing materials were evaluated using L929 fibroblast cells. MTT assay and phase contrast microscopic studies showed that the adherence, growth, and proliferation of the L929 fibroblast cells that were seeded on zinc oxide nanoparticles on the functionalized hydrogel-coated silk fibroin dressing was significantly higher than that of pure silk fibroin due to the highly porous, bio-mimic structure that allowed ease of passage of nutrients, growth factors, metabolites, and the exchange of gases which is beneficial for successful regeneration of damaged tissues. The expression of TNF-α and IL-2 were not significantly higher than that of control. The proposed composite dressing would be a promising material for wound dressing and regenerative medicine but in order to prove the efficacy of these materials, more in vivo experiments and clinical tests are required to be conducted in future.

show abstract

“…Unlike cotton, silk consists of high-purity biological protein, which is similar to the structure of synthetic fibers, such as nylon. Mulberry silk, a typical solid fiber extruded and spun by silkworms in the form of a cocoon, has an elegant and lustrous appearance due to its triangular cross-section and smooth surface (Figure 5d-f) [29]. Wool fibers are another type of protein fibers that are widely used to provide warmth and good resiliency.…”

Section: Resultsmentioning

confidence: 99%

General Strategy to Prepare Single-Layered Ag–Au–Pt Nanocrystal Ternary-Coated Biomass Textiles through Polymer-Driven Self-Assembly

Gao

Feng

et al. 2020

Nanomaterials

View full text Add to dashboard Cite

Current metal nanomaterials for developing nanofunctional textiles are mostly based on metal nanoparticles (NPs) that show aqueous instability, a tendency to aggregate, and low chemical affinity to biomass textiles, leading to low nano-metal uptake during finishing, significant declines in function, and nano-pollution. Herein, we demonstrate a strategy to transform metal (Ag, Au, and Pt) NPs into homogenous hyperbranched poly(amide-amine) (HBPAA)-encapsulated NPs showing high water solubility, oxidative resistance, and affinity to biomass materials upon surface capping with HBPAA. The proposed method represents a universal, simple, clean, and efficient self-assembly technology to produce monolayered Ag–Au–Pt ternary-coated biomass textiles. The combination of Ag, Au, and Pt NPs yields a positive potential of approximately +37.12 mV depending on the metal concentration and could simultaneously self-assemble onto natural fibers, including cotton, silk, and wool, through the one-step impregnation of textiles. Increasing the temperature and concentration of the mixture favors the self-assembly process. A mixture of 30–110 mg/L Ag, Au, and Pt NPs could nearly completely anchor onto cotton, silk, and wool textiles after impregnation at 100 °C for 1 h without chemical assistance, thereby indicating the possibility of clean production. As-prepared functional cotton, silk, and wool possessed similarly high antibacterial activities, and a mixture containing over 1500 mg/g NPs inhibited 99% of the Escherichia coli and Staphylococcus aureus in the sample textiles. The developed coating technology is simple, clean, controllable, and broadly applicable; thus, it could be potentially applied in functional textiles.

show abstract

Ex-situ fabrication of ZnO nanoparticles coated silk fiber for surgical applications

Cited by 35 publications

References 25 publications

Novel Green In Situ Synthesis of ZnO Nanoparticles on Cotton Using Pomegranate Peel Extract

Novel Green In Situ Synthesis of ZnO Nanoparticles on Cotton Using Pomegranate Peel Extract

Zinc Oxide Nanoparticles Functionalized on Hydrogel Grafted Silk Fibroin Fabrics as Efficient Composite Dressing

General Strategy to Prepare Single-Layered Ag–Au–Pt Nanocrystal Ternary-Coated Biomass Textiles through Polymer-Driven Self-Assembly

Contact Info

Product

Resources

About