Spontaneous adsorption of silver nanoparticles on Ti/TiO2 surfaces. Antibacterial effect on Pseudomonas aeruginosa

Flores, Constanza; Diaz, Carolina; Rubert, Aldo A.; Benítez, G.; Moreno, M. Sergio; Mele, Mónica Alicia Fernández Lorenzo de; Salvarezza, Roberto Carlos; Schilardi, Patricia Laura; Vericat, Carolina

doi:10.1016/j.jcis.2010.06.052

Cited by 155 publications

(110 citation statements)

References 63 publications

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“…These nanoparticles spontaneously adsorb on Ti/TiO 2 , forming nanometre-sized aggregates consisting of individual nAg that homogeneously cover the surface. The modified nAg-Ti/TiO 2 surface exhibits a good resistance to colonization by Pseudomonas aeruginosa [120]. In spite of silver is able to kill bacteria and has no cytotoxic effect on osteoblasts and epithelial cells [121] at low dose, this could not be guaranteed in high dose [122].…”

Section: Silvermentioning

confidence: 99%

Bacterial adhesion mechanisms on dental implant surfaces and the influencing factors

Han

Tsoi

Rodrigues

et al. 2016

International Journal of Adhesion and Adhesives

101

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a b s t r a c tBacterial adhesion on dental implants may cause peri-implant disease including peri-implant mucositis and peri-implantitis. Peri-implantitis may lead to bone resorption and eventually loss of the implant. Therefore, the factors which influence bacterial adhesion are critical and revealed by many studies. The purpose of this review is to summarize the current knowledge of factors influencing the bacteria adhesion, including local factors of implant surface topography, abutment, cement and oral environment factors of saliva and protein. In addition, the corresponding strategies of surface modifications, coatings and challenges for implant materials as prevention and treatment approaches for bacteria adhesion on implant will also be discussed. We expect to give an overall picture of the bacteria adhesion on implant, and provide future perspectives, such as laser therapy, photocatalysis, plasma and bioelectric effect to inspire researchers to explore on this issue.

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Section: Silvermentioning

confidence: 99%

Bacterial adhesion mechanisms on dental implant surfaces and the influencing factors

Han

Tsoi

Rodrigues

et al. 2016

International Journal of Adhesion and Adhesives

101

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“…The muramic acid present in the cell wall of S. aureus acts as a unique biomarker which predicts more accurate cell wall destruction when exposed to silver nanoparticles [13][14][15]. Similarly Pseudomonas aerogenosa has been the best model organism along with E.coli for Gram-negative because of its involvement in biofilm formation [16].…”

Section: Introductionmentioning

confidence: 99%

A facile synthesis of silver nanoparticle with SERS and antimicrobial activity usingBacillus subtilisexopolysaccharides

Selvakumar

Aravindh

Ashok

et al. 2013

Journal of Experimental Nanoscience

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In this study, we report a facile synthesis of silver nanoparticle having SERS and antimicrobial activity using bacterial exopolysaccharide (EPS). Bacillus subtilis (MTCC 2422) was grown in nutrient broth and the extracellular EPS secreted by the organism was extracted and purified. The purified EPS was used for the synthesis of silver nanoparticles. The kinetics of silver nanoparticle synthesis was deduced by varying the exposure time and the concentration of EPS. The rate constant (k) for the synthesis of silver nanoparticle was calculated from the slope of ln(A 1 À A t ) versus time plot. The k value was found to be 3.49 Â 10 À3 , 5.81 Â 10 À3 and 5.03 Â 10 À3 per min for particle synthesis using 2, 5 and 10 mg/mL EPS, respectively. The nanoparticles synthesised had an average particle size of 5.18 AE 1.49 nm, 1.96 AE 0.77 nm and 2.08 AE 0.88 nm for 2, 5 and 10 mg/mL EPS, respectively. The synthesised particles were characterised using UV-Vis absorbance spectroscopy, high-resolution transmission electron microscopy (HRTEM) attached to EDS (energy dispersive spectroscopy), Fourier transform infrared spectroscopy (FTIR), surface enhanced Raman spectroscopy (SERS) and zeta potential analyser. To our knowledge, this is the first study to report SERS activity of microbial Bacillus subtilis EPS-based synthesis of silver nanoparticle. HRTEM images showed silver nanoparticle entrapped in polysaccharide nanocages. Silver nanoparticle showed higher adherence towards the bacterial surface, with good bactericidal activity against Pseudomonas aeroginosa and Staphylococcus aureus.

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“…As shown in Fig. 4 (B), the pattern of AgNP-AC exhibits peaks at peaks at 2q angles of 38.15°, 46.5°, 64.5° which corresponds to AgNP 21 .…”

Section: Xrd Patternmentioning

confidence: 94%

Silver Nanoparticle Loaded Activated Carbon: An Escalated Nanocomposite with Antimicrobial Property

Karthik¹,

Radha²

2016

Orient. J. Chem

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In this work, the antimicrobial property of nanocomposite prepared by loading of silver nanoparticle onto activated carbon (AgNP-AC) was studied. The silver nanoparticles were synthesized biologically from the culture Enterobacter aerogenes and loaded onto the activated carbon. The nanoparticle and nanocomposite were characterized by UV-vis, scanning electron microscopy and X-ray diffraction studies. The spectroscopic assay and zone inhibition test for E. coli and B. subtilis clearly illustrates the antibacterial activity of the silver nanoparticle and nanocomposite. The antimicrobial activity of the nanocomposite was of the nanocomposite was also confirmed with the observed zone of inhibition against beverage, brewery, dairy and dye industrial effluents.

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Spontaneous adsorption of silver nanoparticles on Ti/TiO2 surfaces. Antibacterial effect on Pseudomonas aeruginosa

Cited by 155 publications

References 63 publications

Bacterial adhesion mechanisms on dental implant surfaces and the influencing factors

Bacterial adhesion mechanisms on dental implant surfaces and the influencing factors

A facile synthesis of silver nanoparticle with SERS and antimicrobial activity usingBacillus subtilisexopolysaccharides

Silver Nanoparticle Loaded Activated Carbon: An Escalated Nanocomposite with Antimicrobial Property

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