Surface analysis of nitrogen plasma-treated C60/PS nanocomposite films for antibacterial activity

El-Sayed, Naglaa Mohammed; Reda, Fayiz M.; Farag, Omar F.; Nasrallah, Doaa A.

doi:10.1007/s10867-017-9447-6

Cited by 11 publications

(2 citation statements)

References 33 publications

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“…Functionalized fullerenes have demonstrated antibiofilm and antimicrobial activities as well as improved physical properties of substances. Polystyrene and fullerene composites exposed to plasma exhibited optimal antibacterial as well as antibiofilm activities against clinical isolates of P. aeruginosa KT337488 and S. aureus KT337489 at 30 min [ 167 ]. The presence of functional groups O 2 and N 2 enhanced the antibacterial properties exhibited by the composites.…”

Section: Nanotechnology and Microtechnology In Antimicrobial Resismentioning

confidence: 99%

Approaches for Mitigating Microbial Biofilm-Related Drug Resistance: A Focus on Micro- and Nanotechnologies

et al. 2021

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Biofilms play an essential role in chronic and healthcare-associated infections and are more resistant to antimicrobials compared to their planktonic counterparts due to their (1) physiological state, (2) cell density, (3) quorum sensing abilities, (4) presence of extracellular matrix, (5) upregulation of drug efflux pumps, (6) point mutation and overexpression of resistance genes, and (7) presence of persister cells. The genes involved and their implications in antimicrobial resistance are well defined for bacterial biofilms but are understudied in fungal biofilms. Potential therapeutics for biofilm mitigation that have been reported include (1) antimicrobial photodynamic therapy, (2) antimicrobial lock therapy, (3) antimicrobial peptides, (4) electrical methods, and (5) antimicrobial coatings. These approaches exhibit promising characteristics for addressing the impending crisis of antimicrobial resistance (AMR). Recently, advances in the micro- and nanotechnology field have propelled the development of novel biomaterials and approaches to combat biofilms either independently, in combination or as antimicrobial delivery systems. In this review, we will summarize the general principles of clinically important microbial biofilm formation with a focus on fungal biofilms. We will delve into the details of some novel micro- and nanotechnology approaches that have been developed to combat biofilms and the possibility of utilizing them in a clinical setting.

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Section: Nanotechnology and Microtechnology In Antimicrobial Resismentioning

confidence: 99%

Approaches for Mitigating Microbial Biofilm-Related Drug Resistance: A Focus on Micro- and Nanotechnologies

et al. 2021

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“…The antibacterial activity of untreated and plasma treated PS films against Staphylococcus aureus bacteria as Gram-positive bacteria were examined by applying the optical density (OD) technique as described elsewhere [19]. The N 2 and Ar treated samples and the untreated samples were inserted in bacterial suspensions that were incubated at 37 °C for 24h.…”

Section: Antibacterial Properties Of Ps Filmsmentioning

confidence: 99%

A Comparative Study of Surface Modification of PS Films Using DC Glow Discharge Plasma in N2 and Ar

Farag

2019

Arab Journal of Nuclear Sciences and Applications

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In this paper, the polystyrene (PS) film surface was treated using DC glow discharge nitrogen (N 2) and argon (Ar) plasma to improve the wettability and antibacterial properties. The untreated and plasma treated surfaces were characterized by contact angle, FTIR, XRD and SEM analysis. The antibacterial activity of untreated and plasma treated PS films was evaluated using optical density (OD) technique against Staphylococcus aureus bacteria. The results of the PS film surface treated in both N 2 and Ar showed a noticeable increase in the wettability due to the increase in the roughness and the introduction of oxygen-containing polar groups as corroborated with SEM, weight loss calculations and FTIR spectra. The results of antibacterial activity showed that the treated samples inhibit the bacterial growth. The Ar treatment created more oxygen-containing polar groups and increase roughness on the PS film surface and extensively modified the polymer surface than the N 2 treatment.

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Advances in Antimicrobial Organic and Inorganic Nanocompounds in Biomedicine

Wang

Makvandi

Zare

et al. 2020

Advanced Therapeutics

100

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Bacterial resistance to antibiotics is an important issue in contemporary society. To date, infection‐related problems persist despite intensive research efforts by chemists and biologists. Much effort has been devoted over the last decade to the development of organic/nonmetallic inorganic nanocompounds with antimicrobial activities for overcoming human infections and illnesses produced by antibiotic‐resistant pathogens. Both organic nanomaterials such as chitosan nanoparticles and conductive‐based polymer nanocompounds, as well as nonmetallic inorganic nanomaterials such as carbon‐based nanocompounds and modified nanoceramics, have been manufactured and employed in medicine for treating multidrug‐resistant infections. This review describes the most recent advances in the biomedical applications of antibacterial organic/nonmetallic inorganic nanocompounds.

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Surface analysis of nitrogen plasma-treated C60/PS nanocomposite films for antibacterial activity

Cited by 11 publications

References 33 publications

Approaches for Mitigating Microbial Biofilm-Related Drug Resistance: A Focus on Micro- and Nanotechnologies

Approaches for Mitigating Microbial Biofilm-Related Drug Resistance: A Focus on Micro- and Nanotechnologies

A Comparative Study of Surface Modification of PS Films Using DC Glow Discharge Plasma in N2 and Ar

Advances in Antimicrobial Organic and Inorganic Nanocompounds in Biomedicine

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