New Hybrid Material Based on Layered Double Hydroxides and Biogenic Silver Nanoparticles: Antimicrobial Activity and Cytotoxic Effect

Marcato, Priscyla D.; Parizotto, N.V.; Martinez, Diego Stéfani T.; Paula, Amauri J.; Ferreira, Iasmin R.; Melo, Patrícia S.; Durán, Nélson; Alves, Oswaldo Luiz

doi:10.5935/0103-5053.20130034

Cited by 29 publications

(12 citation statements)

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“…Our results was in accordance with Ishida et al (2014), who reported a fungicidal effect of green AgNPs on C. albicans, with MIC and MFC values of 1.68 and 3.40 μg/ml, respectively. No cytotoxic effect was shown up to a concentration of 10 μg/ml of AgNPs for Hep-2 cells (Marcato et al, 2013 andLima et al, 2013). Our results emphasize the decrease of fluconazole MIC of C. albicans when combined to AgNPs.…”

Section: Antifungal Activitysupporting

confidence: 48%

“…100μl of each concentration was inoculated into the cells and incubated at 37°C for 24 h. The viable cells stained with staining buffers for 1-2 h. 33% citric acid was used for elution, and the absorbance was measured at 595 nm. Determination of the non-toxic concentration of the AgNPs or FLC/ AgNPs combined was done by the microscopic examination (Marcato et al, 2013).…”

Section: Toxicity Assay Of the Prepared Agnpsmentioning

confidence: 99%

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Antimicrobial Activity of Green Silver Nanoparticles against Fluconazole-resistant Candida albicans in Animal Model

El-Adly

Shabana

2018

Egypt. J. Bot.

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F UNGAL infections due to fluconazole-resistant Candida albicans are a serious clinical problem, requiring new efficient antifungal treatment. The present study evaluated the susceptibility of fluconazole-resistant C. albicans to green silver nanoparticles. A total of 40 isolates were examined for the expressions of CDR1, CDR2, and MDR1 gene by quantitative reverse transcription polymerase chain reaction. The antifungal activities of green silver nanoparticles alone and/or in combination with fluconazole (to improve antifungal activity) were assessed by broth microdilution assay and transmission electron microscopy. The effect of fluconazole and/or green silver nanoparticles on the production of C. albicans to protease and phospholipase was also evaluated. And finally, animal model was used to prove the safe and effective use of green silver nanoparticles in the treatment of fluconazole-resistant C. albicans. For all the tested C. albicans strains, the minimum inhibitory concentrations (MICs) of fluconazole and green silver nanoparticles were 64 and 4.84 µg/ml, respectively. Green silver nanoparticles decrease the production of protease and phospholipase enzymes. The expression of both CDR1 and CDR2 were decreased after exposure to green silver nanoparticles, while the expression of CDR 1, CDR 2 and MDR 1 were all decreased when fluconazole and green silver nanoparticles were used. Green silver nanoparticles may be causing suppression of the CDR1, CDR2 and MDR1 expression in fluconazole-resistant C. albicans. The results suggest the use of green silver nanoparticles as a safe and effective treatment against fluconazole-resistant C. albicans.

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Section: Antifungal Activitysupporting

confidence: 48%

Section: Toxicity Assay Of the Prepared Agnpsmentioning

confidence: 99%

Antimicrobial Activity of Green Silver Nanoparticles against Fluconazole-resistant Candida albicans in Animal Model

El-Adly

Shabana

2018

Egypt. J. Bot.

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“…With the common characteristics of 2D materials, LDHs have al arge specific area that provides multiple sites for antibacterial agents, such as AgNPs. [137][138][139][140][141] Carja and co-workers deposited AgNPso nZ nLDH and found that the formed Ag/ZnLDH had ah ighera ntibacterial activity andb etter stability than unsupported AgNPs. [137] The strongera ntibacterial activity of Ag/ZnLDH is possibly due to the adsorption of the positively charged LDHs onto the negatively chargedm icroorganisms, which is beneficial for ab etter interaction between the embedded AgNPsa nd the bacteria.…”

Section: Layeredd Ouble Hydroxides (Ldhs)mentioning

confidence: 99%

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

Sun

2018

Chemistry An Asian Journal

105

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Since the "birth" of graphene in 2004, two-dimensional (2D) materials have attracted unprecedented research interest from scientists and have stimulated numerous applications in various fields, such as electronic/optical devices, energy storage, catalysis, sensors, and biomedicine. In this review, we summarize recent advances in the antimicrobial applications of 2D materials, such as graphene materials (GMs), layered double hydroxides (LDHs), transition-metal dichalcogenides (TMDs), graphitic carbon nitride (g-C N ), MXenes, black phosphorus (BP), and their derivatives. This review also correlates the unique physicochemical properties of 2D materials with their antimicrobial activities. Finally, some current challenges and future perspectives in this field are also presented.

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“…Encouraged by the preceding achievements, herein, we report the synthesis of PC from 1,2-propylene glycol (PG) and urea by constructing the mixed metal oxide derived from hydrotalcite catalysts with controllable acid/base properties [23][24][25][26]. The catalysts were prepared from the ammonium persulfate modification of MgAl-hydrotalcites [27].…”

Section: Introductionmentioning

confidence: 99%

Controllable Acid/Base Propriety of Sulfate Modified Mixed Metal Oxide Derived from Hydrotalcite for Synthesis of Propylene Carbonate

Ding

Zhang

et al. 2019

Catalysts

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Ammonium persulfate modified mixed metal oxide derived from hydrotalcite with tunable acid/base properties can be prepared via thermal decomposition of Mg-Al hydrotalcite-type precursors and ammonium persulfate. By controlling the ammonium persulfate content, these sulphur mutated samples, denoted as SMgAlO-y (y = 1; 3; 5; 7), were investigated in this research. The resulted materials were characterized by XRD, SEM, FT-IR spectra, Py-IR spectra, XPS, Hammett indicator, CO2-TPD, as well as NH3-TPD. Furthermore, the acid-base property of the sample surface was determined by inverse gas chromatography measurements (IGC). Among all the obtained outcomes, the target SMgAlO-5 demonstrated the maximal Ka/Kb value, and it presented the highest activity as a catalyst in the synthesis of propylene carbonate (PC) through 1,2-propylene glycol and urea, giving the yield of 97.2% at the optimized reaction condition, which indicated that the PC yield counted on the synergic effect of the acidity and basicity on catalysts.

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New Hybrid Material Based on Layered Double Hydroxides and Biogenic Silver Nanoparticles: Antimicrobial Activity and Cytotoxic Effect

Cited by 29 publications

References 0 publications

Antimicrobial Activity of Green Silver Nanoparticles against Fluconazole-resistant Candida albicans in Animal Model

Antimicrobial Activity of Green Silver Nanoparticles against Fluconazole-resistant Candida albicans in Animal Model

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

Controllable Acid/Base Propriety of Sulfate Modified Mixed Metal Oxide Derived from Hydrotalcite for Synthesis of Propylene Carbonate

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