The bactericidal effect of silver nanoparticles

@article{Morones2005TheBE,
  title={The bactericidal effect of silver nanoparticles},
  author={Jose Ruben Morones and Jose Luis Elechiguerra and Alejandra Camacho and Katherine B. Holt and Juan Bautista Kour{\'i} and Jose Tapia Ramirez and Miguel Jos{\'e} Yacaman},
  journal={Nanotechnology},
  year={2005},
  volume={16},
  pages={2346 - 2353}
}
Nanotechnology is expected to open new avenues to fight and prevent disease using atomic scale tailoring of materials. Among the most promising nanomaterials with antibacterial properties are metallic nanoparticles, which exhibit increased chemical activity due to their large surface to volume ratios and crystallographic surface structure. The study of bactericidal nanomaterials is particularly timely considering the recent increase of new resistant strains of bacteria to the most potent… 

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References

SHOWING 1-10 OF 46 REFERENCES

Metal Oxide Nanoparticles as Bactericidal Agents

Reactive magnesium oxide nanoparticles and halogen (Cl2, Br2) adducts of these MgO particles were allowed to contact certain bacteria and spore cells. Bacteriological test data, atomic force

A mechanistic study of the antibacterial effect of silver ions on Escherichia coli and Staphylococcus aureus.

The existence of elements of silver and sulfur in the electron-dense granules and cytoplasm detected by X-ray microanalysis suggested the antibacterial mechanism of silver: DNA lost its replication ability and the protein became inactivated after Ag(+) treatment.

Using nanoparticle optics assay for direct observation of the function of antimicrobial agents in single live bacterial cells.

It is demonstrated that the number of Ag nanoparticles accumulated in cells increases as the aztreonam (AZT) concentration increases and as incubation time increases, showing that AZT induces the sized transformation of membrane permeability and the disruption of the cell wall.

Mode of Bactericidal Action of Silver Zeolite and Its Comparison with That of Silver Nitrate

The results suggest that the contact of the bacterial cell with silverZeolite, the consequent transfer of silver ion to the cell, and the generation of reactive oxygen species in the cell are involved in the bactericidal activity of silver zeolite.

Interaction of silver nitrate with readily identifiable groups: relationship to the antibacterialaction of silver ions

The results imply that interaction of Ag+ with thiol groups plays an essential role in bacterial inactivation.

Dynamic Atomic-Level Rearrangements in Small Gold Particles

A detailed investigation at the atomic level has been made of the factors affecting the dynamic activity of small gold crystals that are supported on thin films of amorphous carbon, silicon, and germanium.

Nanoparticles in energy technology: examples from electrochemistry and catalysis.

Nanoparticles are key components in the advancement of future energy technologies, thus, strategies for preparing nanoparticles in large volume by techniques that are cost-effective are required. In

Structure shape and stability of nanometric sized particles

Nanoparticles are a state of matter that has properties different from either molecules or bulk solids. In the present work, we review the shape and structure of nanometer-sized particles; several