Abstract
Nanostructured ensembles of silver nanoparticles/zinc-substituted anionic clay matrix (Ag/ZnLDH) were obtained by a simple synthetic route in which reconstruction of the layered clay, synthesis of the silver nanoparticles and their organisation on the clay surface took place in a single step at room temperature. The morphology, composition and phase structure of the prepared powders were characterised by X-ray diffraction, infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and N2 adsorption. Results showed that the silver-anionic clay nanoarchitecture consists of nanoparticles of silver (average size 7 nm) deposited on the larger nanoparticles of clay (average size 85 nm). The antimicrobial activity was examined by disk diffusion assay and minimal inhibitory concentration determination as a function of x, where x is a controlled variable parameter that represents the length of time since the sample was synthesised. Ag/ZnLDH showed more stable antimicrobial properties than the unsupported nanosized silver.
| Original language | English |
|---|---|
| Pages (from-to) | 534-539 |
| Number of pages | 6 |
| Journal | International Journal of Antimicrobial Agents |
| Volume | 34 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2009 |
| Externally published | Yes |
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Keywords
- Antimicrobial properties
- LDH anionic clay
- Nanostructured ensembles
- Silver nanoparticles
ASJC Scopus subject areas
- Microbiology (medical)
- Infectious Diseases
- Pharmacology (medical)
Cite this
Nanosized silver-anionic clay matrix as nanostructured ensembles with antimicrobial activity. / Carja, Gabriela; Kameshima, Yoshikazu; Nakajima, Akira; Dranca, Cristian; Okada, Kiyoshi.
In: International Journal of Antimicrobial Agents, Vol. 34, No. 6, 12.2009, p. 534-539.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanosized silver-anionic clay matrix as nanostructured ensembles with antimicrobial activity
AU - Carja, Gabriela
AU - Kameshima, Yoshikazu
AU - Nakajima, Akira
AU - Dranca, Cristian
AU - Okada, Kiyoshi
PY - 2009/12
Y1 - 2009/12
N2 - Nanostructured ensembles of silver nanoparticles/zinc-substituted anionic clay matrix (Ag/ZnLDH) were obtained by a simple synthetic route in which reconstruction of the layered clay, synthesis of the silver nanoparticles and their organisation on the clay surface took place in a single step at room temperature. The morphology, composition and phase structure of the prepared powders were characterised by X-ray diffraction, infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and N2 adsorption. Results showed that the silver-anionic clay nanoarchitecture consists of nanoparticles of silver (average size 7 nm) deposited on the larger nanoparticles of clay (average size 85 nm). The antimicrobial activity was examined by disk diffusion assay and minimal inhibitory concentration determination as a function of x, where x is a controlled variable parameter that represents the length of time since the sample was synthesised. Ag/ZnLDH showed more stable antimicrobial properties than the unsupported nanosized silver.
AB - Nanostructured ensembles of silver nanoparticles/zinc-substituted anionic clay matrix (Ag/ZnLDH) were obtained by a simple synthetic route in which reconstruction of the layered clay, synthesis of the silver nanoparticles and their organisation on the clay surface took place in a single step at room temperature. The morphology, composition and phase structure of the prepared powders were characterised by X-ray diffraction, infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and N2 adsorption. Results showed that the silver-anionic clay nanoarchitecture consists of nanoparticles of silver (average size 7 nm) deposited on the larger nanoparticles of clay (average size 85 nm). The antimicrobial activity was examined by disk diffusion assay and minimal inhibitory concentration determination as a function of x, where x is a controlled variable parameter that represents the length of time since the sample was synthesised. Ag/ZnLDH showed more stable antimicrobial properties than the unsupported nanosized silver.
KW - Antimicrobial properties
KW - LDH anionic clay
KW - Nanostructured ensembles
KW - Silver nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=70350377801&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350377801&partnerID=8YFLogxK
U2 - 10.1016/j.ijantimicag.2009.08.008
DO - 10.1016/j.ijantimicag.2009.08.008
M3 - Article
C2 - 19786342
AN - SCOPUS:70350377801
VL - 34
SP - 534
EP - 539
JO - International Journal of Antimicrobial Agents
JF - International Journal of Antimicrobial Agents
SN - 0924-8579
IS - 6
ER -