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Superparamagnetic nickel colloidal nanocrystal clusters with antibacterial activity and bacteria binding ability
- Source :
- Nature nanotechnology. 13(6)
- Publication Year :
- 2016
-
Abstract
- Recent progress in synthetic nanotechnology and the ancient use of metals in food preservation and the antibacterial treatment of wounds have prompted the development of nanometallic materials for antimicrobial applications1–4. However, the materials designed so far do not simultaneously display antimicrobial activity and the capability of binding and capturing bacteria and spores. Here, we develop a one-step pyrolysis procedure to synthesize monodisperse superparamagnetic nickel colloidal nanocrystal clusters (SNCNCs), which show both antibacterial activity and the ability to bind Gram-positive (Bacillus subtilis) and Gram-negative (Escherichia coli) bacteria, as well as bacterial spores. The SNCNCs are formed from a rapid burst of nickel nanoparticles, which self-assemble slowly into clusters. The clusters can magnetically extract 99.99% of bacteria and spores and provide a promising approach for the removal of microbes, including hard-to-treat microorganisms. We believe that our work illustrates the exciting opportunities that nanotechnology offers for alternative antimicrobial strategies and other applications in microbiology. Monodispersed superparamagnetic nickel colloidal nanocrystal clusters synthesized by pyrolysis can capture bacteria and bacterial spores and simultaneously exert antimicrobial activity.
- Subjects :
- Microorganism
Biomedical Engineering
Nanoparticle
chemistry.chemical_element
Bioengineering
02 engineering and technology
010402 general chemistry
01 natural sciences
Endospore
Nickel
Escherichia coli
Humans
General Materials Science
Colloids
Electrical and Electronic Engineering
Magnetite Nanoparticles
Escherichia coli Infections
biology
Chemistry
fungi
021001 nanoscience & nanotechnology
Condensed Matter Physics
Antimicrobial
biology.organism_classification
Combinatorial chemistry
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Anti-Bacterial Agents
Nanocrystal
0210 nano-technology
Antibacterial activity
Bacteria
Pyrolysis
Bacillus subtilis
Subjects
Details
- ISSN :
- 17483395
- Volume :
- 13
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Nature nanotechnology
- Accession number :
- edsair.doi.dedup.....df5a5ed91c3ab8cca003a5fdae9badce