Antimicrobial coatings based on amine-terminated graphene oxide and Nafion with remarkable thermal resistance

Beg, Mohammed Suleman; Gibbons, Ella Nicole; Gavalas, Spyridon; Holden, Mark A.; Krysmann, Marta; Kelarakis, Antonios

doi:10.1039/d3na01154b

Cited by 1 publication

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“…Carbon nanotubes and graphene-based polymer nanomaterials exhibit a series of attractive characteristics related to their mechanical, electrical, thermal, sensing and antimicrobial properties [ 56 , 57 , 58 ], although achieving a high level of dispersion is often challenging. Hong et al [ 59 ] demonstrated the in situ growth of CNT on Teflon and polycarbonate (PC) when the polymeric substrates were painted with the catalyst cobalt naphthenate and a mixture of C 2 H 2 (key building block) and H 2 S (sulphur has a promoter role via softening the metal catalyst) was introduced under microwave irradiation.…”

Section: Discussionmentioning

confidence: 99%

In Situ Generation of Nanoparticles on and within Polymeric Materials

Kelarakis

2024

Polymers

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It is well-established that the structural, morphological and performance characteristics of nanoscale materials critically depend upon the dispersion state of the nanofillers that is, in turn, largely determined by the preparation protocol. In this report, we review synthetic strategies that capitalise on the in situ generation of nanoparticles on and within polymeric materials, an approach that relies on the chemical transformation of suitable precursors to functional nanoparticles synchronous with the build-up of the nanohybrid systems. This approach is distinctively different compared to standard preparation methods that exploit the dispersion of preformed nanoparticles within the macromolecular host and presents advantages in terms of time and cost effectiveness, environmental friendliness and the uniformity of the resulting composites. Notably, the in situ-generated nanoparticles tend to nucleate and grow on the active sites of the macromolecular chains, showing strong adhesion on the polymeric host. So far, this strategy has been explored in fabrics and membranes comprising metallic nanoparticles (silver, gold, platinum, copper, etc.) in relation to their antimicrobial and antifouling applications, while proof-of-concept demonstrations for carbon- and silica-based nanoparticles as well as titanium oxide-, layered double hydroxide-, hectorite-, lignin- and hydroxyapatite-based nanocomposites have been reported. The nanocomposites thus prepared are ideal candidates for a broad spectrum of applications such as water purification, environmental remediation, antimicrobial treatment, mechanical reinforcement, optical devices, etc.

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