Variables affecting the antibacterial properties of nano and pigmentary titania particles in suspension

Verran, Joanna; Sandoval, Gonzalo; Allen, Norman S.; Edge, Michèle; Stratton, John

doi:10.1016/j.dyepig.2006.01.003

Cited by 65 publications

(41 citation statements)

References 14 publications

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“…TiO 2 nano-particles have been especially the center of attention for their photo-catalytic activities [59][60][61][62][63][64][65][66][67][68]. This makes TiO 2 nano-particles applicable in many fields such as self-cleaning, anti-bacterial agent, UV protecting agent [69], environmental purification [70], water and air purifier [71,72], gas sensors, and high efficient solar cell [73][74][75]. The photo-activity property is strongly related to the structure, micro-structure and the powder purification [73][74][75].…”

Section: Tio 2 Nano-particlesmentioning

confidence: 99%

A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties

Dastjerdi

Montazer

2010

Colloids and Surfaces B: Biointerfaces

1,245

596

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Section: Tio 2 Nano-particlesmentioning

confidence: 99%

A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties

Dastjerdi

Montazer

2010

Colloids and Surfaces B: Biointerfaces

1,245

596

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“…Based on these results, we can conclude the good sterilization property of porous TiO 2 ceramic pellets was induced mainly its unique microstructure, not calcinations process. 3.4 Analysis of sterilization mechanism of porous TiO 2 ceramic pellets J Verran et al [15] studied the relationship between particles size and specific surface area of nano-TiO 2 and sterilization activities of photocatalysis. They considered that sterilization activities of photocatalysis depended on not particles size and specific surface area but the crystallinity of powder.…”

Section: Analysis Of Photocatalysis Sterilization Of Porous Tio 2 Cermentioning

confidence: 99%

“…On the other hand, the surface defects of particles were the center of trapped photogeneration electron-cavity pair [17] . Photogeneration carrier diffused to surface and trapped by defects fast resulted in low concentration carrier and short lifetime [15] . Grain size of porous TiO 2 ceramic pellets and re-grinded pellets powder was larger, crystallinity was better than powder, surface defects were fewer and specific surface area was smaller.…”

Section: Analysis Of Photocatalysis Sterilization Of Porous Tio 2 Cermentioning

confidence: 99%

“…Kikuchi et al [3] studied the sterilization effects and oxidation kinetics factors of TiO 2 thin film photocatalysis. J Verran et al [15] studied the effects of the morphous of nano-TiO 2 in the suspension solution on the sterilization performances. Niyaz et al [16] reported the study of decolorization of textile dye wastewater by TiO 2 thin film photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial properties of TiO2 ceramic pellets prepared using nano TiO2 powder

Yao

Shao

et al. 2009

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Titanium dioxide (TiO 2 ) porous ceramic pellets with three dimension nano-structure were prepared using nano TiO 2 powder. The TiO 2 porous ceramic pellets were composed of TiO 2 nanoparticles with 14-16 nm in diameter and had porosity of 74.85%. The mean pore size of the TiO 2 porous ceramic pellets was 20.73 nm and the main pore size ranged from 3 to 16 nm. The mass loss of the TiO 2 ceramic pellets was less than 5% after 20 d immersion in water. The antibacterial properties of the TiO 2 pellets were studied. The sterilization rate of Colibacillus (hospital polluted water with bacterium) can reach 99% after 3 h photocatalytic process and these TiO 2 pellets are easy to be re-activated and cyclically be used. The shaping mechanism and photocatalysis sterilization mechanism of the TiO 2 pellets were discussed.

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“…Both of these have been coated onto or incorporated into various materials[51]. An inverse relationship between nanoparticle size and antimicrobial activity has been demonstrated: nanoparticles in the size range of 1-10 nm have the greatest bactericidal activity against bacteria[33],[52]. Copper oxide is cheaper than silver, easily mixed with polymers, and relatively stable in terms of both chemical and physical properties.…”

Section: Nano-structured Materials and Their Applicationsmentioning

confidence: 99%

Current perspectives of nanoparticles in medical and dental biomaterials

Hamouda

2012

J Biomed Res

186

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Nanotechnology is gaining tremendous impetus due to its capability of modulating metals into their nanosize, which drastically changes the chemical, physical and optical properties of metals. Nanoparticles have been introduced as materials with good potential to be extensively used in biological and medical applications. Nanoparticles are clusters of atoms in the size range of 1-100 nm. Inorganic nanoparticles and their nano-composites are applied as good antibacterial agents. Due to the outbreak of infectious diseases caused by different pathogenic bacteria and the development of antibiotic resistance, pharmaceutical companies and researchers are searching for new antibacterial agents. The metallic nanoparticles are the most promising as they show good antibacterial properties due to their large surface area to volume ratios, which draw growing interest from researchers due to increasing microbial resistance against metal ions, antibiotics and the development of resistant strains. Metallic nanoparticles can be used as effective growth inhibitors in various microorganisms and thereby are applicable to diverse medical devices. Nanotechnology discloses the use of elemental nanoparticles as active antibacterial ingredient for dental materials. In dentistry, both restorative materials and oral bacteria are believed to be responsible for restoration failure. Secondary caries is found to be the main reason to restoration failure. Secondary caries is primarily caused by invasion of plaque bacteria (acid-producing bacteria) such as Streptococcus mutans and lactobacilli in the presence of fermentable carbohydrates. To make long-lasting restorations, antibacterial materials should be made. The potential of nanoparticles to control the formation of biofilms within the oral cavity is also coming under increasing scrutiny. Possible uses of nanoparticles as topically applied agents within dental materials and the application of nanoparticles in the control of oral infections are also reviewed.

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Variables affecting the antibacterial properties of nano and pigmentary titania particles in suspension

Cited by 65 publications

References 14 publications

A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties

A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties

Antibacterial properties of TiO2 ceramic pellets prepared using nano TiO2 powder

Current perspectives of nanoparticles in medical and dental biomaterials

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