Antimicrobial activities of commercial nanoparticles against an environmental soil microbe, Pseudomonas putida KT2440

Gajjar, P. N.; Pettee, B.; Britt, David W.; Huang, Wenjie; Johnson, William P.; Anderson, Anne J.

doi:10.1186/1754-1611-3-9

Cited by 281 publications

(135 citation statements)

References 43 publications

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“…The antimicrobial application of magnetic nanoparticles is gaining attention because they can be manipulated through an external magnetic field. Moreover, several nonmagnetic metals nanoparticles or metal oxides were found to be antimicrobials against pathogenic bacteria (Gajjar et al, 2009). The antimicrobial activities of magnetic nanoparticles are well established by Chifiriuc et al (2011).…”

Section: Introductionmentioning

confidence: 93%

Synthesis and characterization of cobalt ferrites nanoparticles with cytotoxic and antimicrobial properties

Hathout¹,

Aljawish²,

Sabry³

et al. 2017

J App Pharm Sci

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Recently, the application of nanotechnology in food sector and the agriculture attract the attention compared to its biomedical application. The aims of the current study was to synthesize and characterize cobalt ferrites nanoparticles [(CoFe2O4) NPs] by combustion method employing glycine as fuels and to evaluate their antimicrobial against pathogenic bacteria and fungi and anti cancer properties against MCF-7 breast cancer cells line. The results indicated that the particles size of the synthesized (CoFe2O4) NPs was 40 nm. These (CoFe2O4) NPs showed potential antibacterial properties against Gram-negative bacteria (Escherichia coli, Salmonella typhi) and Gram-positive bacteria (Staphylococcus aureus, Bacillus cereus) as well as the pathogenic fungi (Aspergillus flavus and Aspergillus ochraceus) in a dose dependent manner with maximum concentration of 1.8 mg/ml. (CoFe2O4) NPs also showed weak antiradical but have cytotoxic effects against MCF-7 breast cancer cells line and succeeded to decrease the cell viability at a concentration of 2 mg/ml. It could be concluded that (CoFe2O4) NPs is a promise candidate as antimicrobial and anticancer agent for food sector and medical application.

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Section: Introductionmentioning

confidence: 93%

Synthesis and characterization of cobalt ferrites nanoparticles with cytotoxic and antimicrobial properties

Hathout¹,

Aljawish²,

Sabry³

et al. 2017

J App Pharm Sci

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“…The intensity of the enhancement of the specific heat and experimental results calculated by Bishea and Morse [64], Gruene et al, [65] Mancera [66], Molina et al [67], and with Nose [68], for the vibrational spectrum of Au N = 3,4,5,6,7,19,20 clusters. Interestingly, our results were in excellent agreement with their results.…”

Section: Comparisonmentioning

confidence: 99%

“…The nanoparticles possess unique physic-chemical, optical and biological proper-ties which can be manipulated suitably for desired applications [4]. The advances in the field of nanoscience and nanotechnology has brought to fore the Nano sized inorganic and organic particles which are finding extensive applications as amendments in medicine and therapeutics, synthetic textiles and food packaging products [5]. The incorporation of engineered nanoparticles into household, personal care, consumer, and industrial products is increasing the exposure of humans and the ecosystems to these materials through production, transportation, storage, use, and disposal.…”

Section: Introductionmentioning

confidence: 99%

“…At T=0, the vibrational frequency of a re-optimized neutral gold cluster is obtained for optimized cluster of Au N = [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] which was calculated by Dong and Springborg [44]. The desired set of system Eigen frequencies (3N-6) is obtained by a diagonalization of the symmetric positive semi definite Hessian matrix.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Size, Temperature, and Structure on the Vibrational Heat Capacity of Small Neutral Gold Clusters

Vishwanathan¹,

Springborg²

2017

J Material Sci Eng

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The vibrational heat capacity Cvib of a re-optimized neutral gold cluster was investigated at temperatures 0.5-300 K. The vibrational frequency of an optimized cluster was revealed by small atomic displacements using a numerical finite-differentiation method. This method was implemented using density-functional tight-binding (DFTB) approach. The desired set of system Eigen frequencies (3N -6) was obtained by diagonalization of the symmetric positive semi definite Hessian matrix. Our investigation revealed that the Cvib curve is strongly influenced by temperature, size, and structure and bond-order dependency. The effect of the range of interatomic forces is studied; especially the lower frequencies make a significant contribution to the heat capacity at low temperatures. In addition to that, we have exactly predicted the vibrational frequencies (ωi) which occur between 0.55 to 370.72 cm-1, depending on the nanoparticle morphology at T=0 for small neutral gold clusters AuN=3-20. This result has been proved and confirmed by the size effect values. It was found that beside the particle size, geometric shape, defect structure and an increase in asymmetry of nanoparticles effects on heat capacity. Surprisingly, the Boson peaks are typically ascribed to an excess density of vibrational states for the small clusters. Finally, temperature dependencies of the vibrational heat capacities of the re-optimized neutral gold clusters have been studied for the first time.

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“…In recent years, the field of nanoscience and nanotechnology has achieved significant advances with nanosized inorganic and organic particles that are subject to increasing applications as amendments in industrial, medicine and therapeutics, synthetic textiles, and food packaging products (1). Furthermore, as biological phenomena develop at the nanoscale and because nanoparticles are highly biocompatible, they are increasing being used in the in vivo/in vitro medical research field, mainly in targeted drug delivery, imaging, sensing, and artificial implants (2,3).…”

Section: Introductionmentioning

confidence: 99%

Bactericidal Activity of Copper Oxide Nanocomposite/Bioglass for in Vitro Clindamycin Release in Implant Infections Due to Staphylococcus aureus

Alijanian¹,

Talebian²,

Doudi³

2016

Avicenna J Med Biochem

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Background: In recent years, bioactive bioceramics such as bioglass and hydroxyapatite (HA) have been introduced as a remarkable development in the field of medicine due to their bio-adaptability, non-toxicity, and persistence, in vivo. They have many potential applications in the repair of bone defects and hence they have attracted significant interest from scholars. Objectives: The aim of this study was to synthesize inorganic matrix CuO-based bioglasses and evaluate their antibacterial activity against aerobic bacterial infections in bone implants. Methods: Nano-composite samples of silica-based bioactive glass, 60S BG with nano-powder CuO, were synthesized using the sol-gel method and then assessed with regard to their antibacterial properties against Staphylococcus aureus using well diffusion agar. The samples included BG58S (58%SiO2, 36%CaO, 6%P2O5), BG/10CuO (58%SiO2, 26%CaO, 6%P2O5, 10%CuO), and BG/20CuO (48%SiO2, 26%CaO, 6%P2O5, 20%CuO). To evaluate their bioactivity, the prepared samples of BG/20CuO, BG/10CuO, and BG58S were immersed in simulated body fluids (SBF). The surface morphology and structure of the samples before and after immersion in the SBF were characterized using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR), respectively. Then, the BG/20CuO and BG/10CuO samples were loaded in clindamycin, an antibiotic widely used in the treatment of osteomyelitis, and their release profiles were studied in phosphate buffer solution. Results: It was observed that the growth inhibition zone increased through clindamycin release due to the increasing CuO percentage in the nanocomposite of bioactive glass. The bioactivity of the nanocomposite/bioglass with CuO was superior to that of bioglass alone. In this study, the BG/20CuO sample showed a sustained release of clindamycin, which is sufficient for a drug delivery system. Conclusions: Increasing the Cu nanoparticles in bioactive glass samples leads to the release of Cu 2+ , which has a positive effect on the antibacterial mechanism, as well as decreasing the cultured Staphylococcus colonies found on the bioglasses. Therefore, it seems that the nanocomposite/bioglass of CuO is a promising option for aerobic bacterial inhibitor systems in common bone implant infections.

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Antimicrobial activities of commercial nanoparticles against an environmental soil microbe, Pseudomonas putida KT2440

Cited by 281 publications

References 43 publications

Synthesis and characterization of cobalt ferrites nanoparticles with cytotoxic and antimicrobial properties

Synthesis and characterization of cobalt ferrites nanoparticles with cytotoxic and antimicrobial properties

Effect of Size, Temperature, and Structure on the Vibrational Heat Capacity of Small Neutral Gold Clusters

Bactericidal Activity of Copper Oxide Nanocomposite/Bioglass for in Vitro Clindamycin Release in Implant Infections Due to Staphylococcus aureus

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