Preparation of Crosslinked Amphiphilic Silver Nanogel as Thin Film Corrosion Protective Layer for Steel

Atta, Ayman M.; El-Mahdy, Gamal A.; Al‐Lohedan, Hamad A.; Ezzat, Abdelrahman O.

doi:10.3390/molecules190710410

Cited by 19 publications

(13 citation statements)

References 34 publications

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“…The broad and weak shoulder peak at 3,389 cm −1 can be attributed to either the hydrogen bonded OH in diol and NH bond or both (overlapped) . The results strongly supported the CO stretching frequency of NCHS decreases than ICD pure hydrogel because of the complex between ICD pure hydrogel and metal nanoparticles and strain between pure hydrogel and nanoparticles in hydrogel network .…”

Section: Resultssupporting

confidence: 61%

Noncytotoxic silver and gold nanocomposite hydrogels with enhanced antibacterial and wound healing applications

Chitra

Franklin²,

Sudarsan³

et al. 2018

Polymer Engineering & Sci

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A study about an emerging approach to enhance the biological properties by incorporating nanoparticles within the hydrogel networks using citric acid, diethyleneglycol, and indole-3-acetic acid a three component hydrogels prepared by polycondensation. A stable and uniformly distributed silver and gold nanoparticles have been introduced successfully in hydrogel network resulted in nanocomposite hydrogels. The surface morphology of silver and gold hydrogel have been compared using scanning electron microscope with energy dispersive X-ray spectroscopy analysis and transmission electron microscopy techniques and thermal stability was studied by thermogravimetric analysis. The swelling studies have also been carried out for nanocomposite hydrogels at various pH solution. The nanocomposite hydrogels have exhibited antibacterial activity and nontoxic nature confirmed by the cytotoxicity effect. The results of the study indicated that the nanocomposite hydrogels may be recommended for wound healing applications. Comparatively, silver nanocomposite hydrogel was better performance than gold nanocomposite hydrogel. POLYM. ENG. SCI., 00:000-000,

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Section: Resultssupporting

confidence: 61%

Noncytotoxic silver and gold nanocomposite hydrogels with enhanced antibacterial and wound healing applications

Chitra

Franklin²,

Sudarsan³

et al. 2018

Polymer Engineering & Sci

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“…2 Diverse applications of AgNPs include wound dressings, coating for medical devices and surgical masks, woven fabric microfiltration membranes, and nanogels. [5][6][7][8] There are different approaches for the synthesis of AgNPs; however, chemical and physical syntheses have many drawbacks. These methods mostly depend on the use of toxic and highly reactive reagents, thus posing a risk to the environment and humans.…”

mentioning

confidence: 99%

Green synthesis of silver nanoparticles using cranberry powder aqueous extract: characterization and antimicrobial properties

Ashour

Raafat

El‐Gowelli

et al. 2015

IJN

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Background The growing threat of microbial resistance against traditional antibiotics has prompted the development of several antimicrobial nanoparticles (NPs), including silver NPs (AgNPs). In this article, a simple and eco-friendly method for the synthesis of AgNPs using the cranberry powder aqueous extract is reported. Materials and methods Cranberry powder aqueous extracts (0.2%, 0.5%, and 0.8% w/v) were allowed to interact for 24 hours with a silver nitrate solution (10 mM) at 30°C at a ratio of 1:10. The formation of AgNPs was confirmed by ultraviolet-visible spectroscopy and their concentrations were determined using atomic absorption spectroscopy. The prepared NPs were evaluated by transmission electron microscopy, measurement of ζ-potential, and Fourier-transform infrared spectroscopy. The in vitro antimicrobial properties of AgNPs were then investigated against several microbial strains. Finally, in vivo appraisal of both wound-healing and antimicrobial properties of either plain AgNPs (prepared using 0.2% extract) or AgNP-Pluronic F-127 gel was conducted in a rat model after induction of a Staphylococcus aureus ATCC 6538P wound infection. Results The formation of AgNPs was confirmed by ultraviolet-visible spectroscopy, where a surface-plasmon resonance absorption peak was observed between 432 and 438 nm. Both size and concentration of the formed AgNPs increased with increasing concentration of the extracts. The developed NPs were stable, almost spherical, and polydisperse, with a size range of 1.4–8.6 nm. The negative ζ-potential values, as well as Fourier-transform infrared spectroscopy analysis, indicated the presence of a capping agent adsorbed onto the surface of the particles. In vitro antimicrobial evaluation revealed a size-dependent activity of the AgNPs against the tested organisms. Finally, AgNPs prepared using 0.2% extract exhibited a substantial in vivo healing potential for full-thickness excision wounds in rats. Conclusion AgNPs were successfully synthesized from a silver nitrate solution through a simple green route, using cranberry powder aqueous extract as a reducing as well as capping agent.

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“…Smart and responsive nanogels add to the attraction of nanotechnology based healthcare systems, as they exhibit enormous potential to adapt the surrounding environment. Core shell silver nanoparticles have been prepared by using oleic acid and ferric ions using emulsion polymerization . This led to the formation of mono disperse nanogels by precise control of crosslinking of the particles.…”

Section: Designing Of Functional Nanosilver Within Nanogelmentioning

confidence: 99%

Bioengineering of Functional Nanosilver Nanogels for Smart Healthcare Systems

Anjum¹,

Gupta²

2018

Global Challenges

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Functional designing of nanogels has become an attractive domain of biomedical engineering to develop bioactive materials with innovative features for the human healthcare system. Nanosilver has attracted enormous attention due to its wide antimicrobial spectrum and ability to kill almost all types of bacteria in its vicinity. However, the most crucial challenge for bioscientists is the lack of binding ability of nanosilver with the material surfaces that allow nanosilver to leach out to the surrounding tissue and exert toxicity while the biomaterial is in contact with the living system. Designing nanosilver within a nanogel confinement offers enormous possibilities to develop functional bioactive nanoparticles that may be bonded to any biomaterial surface via the nanogel functionality. This approach requires the proper combination of material science with nanotechnology and biotechnology to innovate interesting domain of functional nanogels with unique features. This work aims at providing a critical review on the current progress, approaches, and vision in designing nanosilver‐entrapped nanogel particles with diverse functionality, and their bioactivity against microorganisms for human healthcare devices.

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Preparation of Crosslinked Amphiphilic Silver Nanogel as Thin Film Corrosion Protective Layer for Steel

Cited by 19 publications

References 34 publications

Noncytotoxic silver and gold nanocomposite hydrogels with enhanced antibacterial and wound healing applications

Noncytotoxic silver and gold nanocomposite hydrogels with enhanced antibacterial and wound healing applications

Green synthesis of silver nanoparticles using cranberry powder aqueous extract: characterization and antimicrobial properties

Bioengineering of Functional Nanosilver Nanogels for Smart Healthcare Systems

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