Hybrid nanocomposites with ultra-low filling content by nano-coating fragmentation

Bellisario, Denise; Quadrini, Fabrizio; Santo, Loredana; Montinaro, Nicola; Fustaino, Mario; Pantano, Antonio

doi:10.1080/25740881.2021.1948060

Cited by 2 publications

(4 citation statements)

References 36 publications

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“…Thus, the nanometric thickness allows us to consider the particles as nanofillers. Thermal and mechanical properties of the PNCs were reported by authors in previous works [30].…”

Section: Polypropylene Nanocomposite (Pnc) Samples' Productionmentioning

confidence: 79%

“…Data Availability Statement: Data are contained within the article or supplementary material. The data presented in this study are available in [29][30][31].…”

Section: Supplementary Materialsmentioning

confidence: 99%

“…The cytotoxicity and antibiofilm activity of different PNCs with polypropylene (PP) matrix, and Ag nanoplates were examined. The PNCs were fabricated by the authors using a new technique called "nanocoating fragmentation" which was introduced in previous studies [29][30][31]. The cytotoxicity and growth properties of biofilms were evaluated on the surfaces of these PNCs with increasing metallic Ag content (0.0023-0.046 wt%) and compared with neat PP surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Cytotoxicity and Antibiofilm Activity of Silver-Polypropylene Nanocomposites

Bellisario,

Santo,

Quadrini

et al. 2023

Antibiotics

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The development of biocompatible nanomaterials that interface with human skin and tissue is critical for advancing prosthetics and other therapeutic medical needs. In this perspective, the development of nanoparticles with cytotoxicity and antibiofilm properties and biocompatibility characteristics are important. Metallic silver (Ag) exhibits good biocompatibility, but it is often challenging to integrate it into a nanocomposite without compromising its antibiofilm properties for optimal applications. In this study, new polymer nanocomposites (PNCs) with ultra-low filling content (0.0023–0.046 wt%) of Ag nanoplates were manufactured and tested. The cytotoxicity and antibiofilm activity of different composites with polypropylene (PP) matrix were examined. At first, PNCs surface were analyzed by means of AFM (atomic force microscopy) with phase contrast evaluation and FTIR (Fourier-transform infrared spectroscopy) to study the Ag nanoplates distribution. Subsequently, the cytotoxicity and growth properties of biofilms were assessed by MTT assay protocol and detection of nitric oxide radicals. Antibacterial and antibiofilm activities were measured against Gram-positive bacteria (Staphylococcus aureus) and Gram-negative bacteria (K. pneumoniae). The PNCs with silver exhibited antibiofilm activity although they did not inhibit regular planktonic bacterial growth. Moreover, the PNCs were not cytotoxic to mammalian cells and did not induce significant immune response. These features reveal the potential of the PNCs developed in this study for usage in fabrication of prosthetics and other smart structures for biomedical applications.

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“…Thus, the nanometric thickness allows us to consider the particles as nanofillers. Thermal and mechanical properties of the PNCs were reported by authors in previous works [30].…”

Section: Polypropylene Nanocomposite (Pnc) Samples' Productionmentioning

confidence: 79%

“…Data Availability Statement: Data are contained within the article or supplementary material. The data presented in this study are available in [29][30][31].…”

Section: Supplementary Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cytotoxicity and Antibiofilm Activity of Silver-Polypropylene Nanocomposites

Bellisario,

Santo,

Quadrini

et al. 2023

Antibiotics

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“…In this work, an alternative PPT approach was developed in order to enhance the detecting resolution in respect to the work by Montinaro et al [ 44 ]. The alternative method performances were evaluated in assessing the particles dispersion in ultra-low (less than 0.05 wt%) enriched polymeric-based nanocomposite manufactured with a nano-coating fragmentation technique described in [ 45 ], based on an injection molding process. The outcomes of the technique can be used to optimize the production (tuning the manufacturing parameters of the process) to enhance the dispersion and/or to test the quality of the manufactured polymer nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Testing the Dispersion of Nanoparticles in a Nanocomposite with an Ultra-Low Fill Content Using a Novel Non-Destructive Evaluation Technique

et al. 2022

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A non-destructive evaluation (NDE) technique capable of testing the dispersion of nanoparticles in a nanocomposite would be of great use to the industry to check the quality of the products made and to ensure compliance with their specifications. Very few NDE techniques found in the literature can evaluate the level of dispersion of the nanoparticles in the whole nanocomposite. Here, a recently developed NDE technique based on pulsed phase thermography (PPT) in transmission mode was used to assess the particle dispersion in ultra-low, less than 0.05 wt%, Ag enriched polymeric based nanocomposite manufactured with an innovative nano-coating fragmentation technique. The phasegrams obtained with the presented technique clearly showed clusters or bundles of Ag nanoparticles when present, down to the size of 6 µm. Therefore, the new NDE approach can be applied to verify that the expected levels of dispersion are met in the production process.

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Hybrid nanocomposites with ultra-low filling content by nano-coating fragmentation

Cited by 2 publications

References 36 publications

Cytotoxicity and Antibiofilm Activity of Silver-Polypropylene Nanocomposites

Cytotoxicity and Antibiofilm Activity of Silver-Polypropylene Nanocomposites

Testing the Dispersion of Nanoparticles in a Nanocomposite with an Ultra-Low Fill Content Using a Novel Non-Destructive Evaluation Technique

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