<i>Staphylococcus aureus</i>

Ondusko, Devlynne S.; Nolt, Dawn

doi:10.1542/pir.2017-0224

Cited by 38 publications

(23 citation statements)

References 44 publications

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“…Antibacterial activity is also studied with Staphylococcus aureus (a gram-positive aerobic bacteria) for being one of the major multidrug-resistant pathogens [9,30], which typically causes skin infections or even pneumonia, endocarditis and osteomyelitis [31].…”

Section: Introductionmentioning

confidence: 99%

RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect

Fernández-Arias

Boutinguiza

Val

et al. 2019

Applied Surface Science

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The rapid evolution of resistant bacteria is a huge problem in medicine because makes the treatment of infections more and more difficult. The bactericidal properties of noble metal nanoparticles could be a solution. In this work silver nanoparticles were produced by using two nanosecond Nd:YVO4 lasers operating at 1064 and 532 nm respectively to ablate a silver target submerged in pure deionized water. Part of the resulting colloidal solution was injected as a fine stream by a compressed air system and re-irradiated one and three times with the same laser to resize and get uniform nanoparticles. The obtained nanoparticles by ablation and re-irradiation consisted of crystalline Ag nanoparticles with a bimodal size distribution. The particle size has been reduced by subsequent laser re-irradiation with both laser sources, reaching a 40% of mean size reduction. Inhibitory effects on the proliferation of Staphylococcus aureus was demonstrated on silver nanoparticles obtained after re-irradiation with the infrared laser.

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Section: Introductionmentioning

confidence: 99%

RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect

Fernández-Arias

Boutinguiza

Val

et al. 2019

Applied Surface Science

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“…About 30% of the population is colonized by S. aureus, and this increases to 60% when it involves the healthcare environment, implying in either cases high risk of further infection [17]. As a pathogen, this bacterium causes various suppurative diseases, such as boils, carbuncles, folliculitis, and scalded-skin syndrome [18]. Additionally, the lymphatic system and bloodstream contributed to bacterial spread to other parts of the body causing osteomyelitis, medical device infection, endocarditis, and pneumonia [19].…”

Section: Clinical Relevance and Virulence Factorsmentioning

confidence: 99%

Essential Oils as an Innovative Approach against Biofilm of Multidrug-ResistantStaphylococcus aureus

Carneiro¹,

Melo²,

Pereira³

et al. 2020

Bacterial Biofilms

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Staphylococcus aureus is one of the most common pathogens that cause recurrent, chronic, and biofilm-related diseases. Biofilms are the major form of bacterial structures capable of secreting polysaccharides that provide intrinsic protection against environmental stress like high concentrations of antibiotics. This, along with the emergence of multidrug-resistant strains, has made S. aureus infections a worldwide problem as a result of the inefficiency of the conventional medications. Plant essential oils (EOs) are an important source for drug discovery and pharmaceutical development due to their diverse biological activities, such as antimicrobial agents. The EOs' microbicide action is extensively reported at the scientific literature and frequently associated with bioactive molecules, such as aldehydes and terpenes. However, the ability of some EOs to inhibit biofilm formation has been poorly explored and it is still unclear how they could be applied in specific treatments against well-known infections. Therefore, this chapter will address virulence factors and biofilm formation of S. aureus, as well as bioprospecting of essential oil as a promising source in the search for new bioactive compounds employed in the fight against this microorganism.

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“…Staphylococcus aureus, in addition to being related to a large number of infectious diseases, is one of the bacteria that presents a greater resistance to current commercial antibiotics [3]. Furthermore, several researchers have demonstrated the important role of this S. aureus in some oral infections such as peri-implantitis, which is considered the main cause of dental implant failure [4].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Deposition of Copper and Copper Oxide Nanoparticles by Laser Ablation in Open Air

et al. 2020

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The proximity of the "post-antibiotic era", where infections and minor injuries could be a cause of death, there are urges to seek an alternative for the cure of infectious diseases. Copper nanoparticles and their huge potential as a bactericidal agent could be a solution. In this work, Cu and Cu oxide nanoparticles were synthesized by laser ablation in open air and in argon atmosphere using 532 and 1064 nm radiation generated by nanosecond and picosecond Nd:YVO 4 lasers, respectively, to be directly deposited onto Ti substrates. Size, morphology, composition and the crystalline structure of the produced nanoparticles have been studied by the means of field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), the energy dispersive spectroscopy of X-rays (EDS), selected area electron diffraction (SAED) and X-ray diffraction (XRD). The UV-VIS absorbance of the thin layer of nanoparticles was also measured, and the antibacterial capacity of the obtained deposits tested against Staphylococcus aureus. The obtained deposits consisted of porous coatings composed of copper and copper oxide nanoparticles interconnected to form chain-like aggregates. The use of the argon atmosphere contributed to reduce significantly the formation of Cu oxide species. The synthesized and deposited nanoparticles exhibited an inhibitory effect upon S. aureus.

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Staphylococcus aureus

Cited by 38 publications

References 44 publications

RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect

RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect

Essential Oils as an Innovative Approach against Biofilm of Multidrug-ResistantStaphylococcus aureus

Fabrication and Deposition of Copper and Copper Oxide Nanoparticles by Laser Ablation in Open Air

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