Challenges facing sterilization and depyrogenation of nanoparticles: Effects on structural stability and biomedical applications

Vetten, Melissa; Yah, Clarence S.; Singh, Tanusha; Gulumian, Mary

doi:10.1016/j.nano.2014.03.017

Cited by 117 publications

(104 citation statements)

References 27 publications

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“…There were several methods for nanoparticles sterilization. Thus, after measuring the different TiO 2 nanocrystallites doses, they were sterilized using UV light for 45 minutes [23]. The Control suspension was used without TiO 2 nanocrystallites.…”

Section: Colony Counting Of Bacterial Cellsmentioning

confidence: 99%

Antibacterial Applications of Anatase TiO<SUB>2</SUB> Nanoparticle

Alhadrami¹,

Baqasi²,

Iqbal³

et al. 2017

AJN

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Many methods have been used for the preparation of nanostructured metal oxides. Here we report the synthesis of TiO 2 nanoparticles by facile hydrothermal process by varying the concentration of the precursor and reaction temperature while keeping the process time constant. Morphological, structural and optical studies were carried out by scanning electron microscopy equipped with energy dispersive spectroscopy, X-ray powder diffraction spectroscopy and VU-Vis-NIR spectroscopy. Morphological and compositional analysis reveal that the prepared nanoparticles are highly pure with an approximate average particle size 5-15nm. XRD studies showed their crystalline structure and the sizes around 5 nm, while the optical absorption studies in the photon wavelength range 300-600 nm reveal that the strong absorbance peak is positioned at around 3.5 eV nm whereas visible energy is almost transparent for the materials. Finally, the antibacterial effect of TiO 2 nanoparticles has been studied. Plating technique was used to determine lowest concentration that prevent or inhibit growth of bacteria. This technique of TiO 2 nanoparticle was used against most common organisms which cause wound infection including: MRSA, E. coli and Pseudomonas aeruginosa. Different concentrations of TiO 2 nanoparticles were used 100 μg/ml, 200 μg/ml, 400 μg/ml, 600 μg/ml and 800 μg/ml. Inhibition of bacteria was different for prepared TiO 2 samples due to different concentration of the precursors and synthesis temperature.

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Section: Colony Counting Of Bacterial Cellsmentioning

confidence: 99%

Antibacterial Applications of Anatase TiO<SUB>2</SUB> Nanoparticle

Alhadrami¹,

Baqasi²,

Iqbal³

et al. 2017

AJN

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Section: Introductionmentioning

confidence: 99%

“…It involves the use of a physical or chemical procedure to destroy all microbial life [48], including highly resistant bacteria spores. To achieve it, there are various procedures, such as autoclaving, UV irradiation, microwaves and chemical techniques [44,49,50]. Autoclaving (steam sterilization) is the most common technique because of its low cost and ease of use [51].…”

Section: Introductionmentioning

confidence: 99%

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Elaboration and characterization of low cost ceramics microfiltration membranes applied to the sterilization of plant tissue culture media

medjemem

Harabi

Bouzerara

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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“…Besides, an interesting application may be sterile filtration. In various industrial fields, such as food, medical industries and biology, it is becoming very important to sterilize the solutions media [40] aiming at reducing the risks of contamination. In this work, the study is related to the development of a ceramic support using Algerian natural materials (kaolin DD3 type) and natural calcium carbonate (CaCO 3 ), whereas the top layer was made from zinc oxide (ZnO).…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of ZnO microfiltration membrane and its support using kaolin (DD3) and CaCO3

et al. 2016

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The objective of the present paper was to prepare a ceramic support with membrane. Tubular ceramic supports prepared from kaolin (DD3) and calcium carbonate with 6 and 10 mm inner and outer diameters, respectively, were extruded and sintered at 1200 °C. It has been found that sintered supports had interesting characteristics: average pore size of about 5 μm, porosity of about 50%, and monomodal pore size distribution. This support was used to be substrate for a membrane layer of microfiltration. This membrane layer was elaborated from zinc oxide, using slip casting technique. The specimens were subsequently sintered at 1000 °C. The microstructure and porosity as well as the permeability have also been studied. It has been found that the average pore size was about 1.2 μm, the layer thickness was ~33 μm, and the water permeability measured was about 880 L.h -1 .m -2 .bar -1 .

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Challenges facing sterilization and depyrogenation of nanoparticles: Effects on structural stability and biomedical applications

Cited by 117 publications

References 27 publications

Antibacterial Applications of Anatase TiO<SUB>2</SUB> Nanoparticle

Antibacterial Applications of Anatase TiO<SUB>2</SUB> Nanoparticle

Elaboration and characterization of low cost ceramics microfiltration membranes applied to the sterilization of plant tissue culture media

Preparation and characterization of ZnO microfiltration membrane and its support using kaolin (DD3) and CaCO3

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