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Intermatrix synthesis: easy technique permitting preparation of polymer-stabilized nanoparticles with desired composition and structure.

Ruiz P, Macanás J, Muñoz M, Muraviev DN - Nanoscale Res Lett (2011)

Bottom Line: The synthesis of polymer-stabilized nanoparticles (PSNPs) can be successfully carried out using intermatrix synthesis (IMS) technique, which consists in sequential loading of the functional groups of a polymer with the desired metal ions followed by nanoparticles (NPs) formation stage.This allows for repeating the cycles to increase the NPs content or to obtain NPs with different structures and compositions (e.g. core-shell or core-sandwich).This article reports the results on the further development of the IMS technique.

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Affiliation: Analytical Chemistry Division, Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain. Patricia.Ruiz.Nicolas@uab.cat.

ABSTRACT
The synthesis of polymer-stabilized nanoparticles (PSNPs) can be successfully carried out using intermatrix synthesis (IMS) technique, which consists in sequential loading of the functional groups of a polymer with the desired metal ions followed by nanoparticles (NPs) formation stage. After each metal-loading-NPs-formation cycle, the functional groups of the polymer appear to be regenerated. This allows for repeating the cycles to increase the NPs content or to obtain NPs with different structures and compositions (e.g. core-shell or core-sandwich). This article reports the results on the further development of the IMS technique. The formation of NPs has been shown to proceed by not only the metal reduction reaction (e.g. Cu0-NPs) but also by the precipitation reaction resulting in the IMS of PSNPs of metal salts (e.g. CuS-NPs).

No MeSH data available.


Total Cu and Cu2S content in nanocomposites versus Cu mmols and in 2nd metal-loading solution.
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Figure 4: Total Cu and Cu2S content in nanocomposites versus Cu mmols and in 2nd metal-loading solution.

Mentions: Figure 4 shows Cu0-NPs content inside the nanocomposite membrane after two metal-loading-reduction cycles and Cu2S-NPs content after one metal-loading reduction followed by the metal-loading-precipitation cycle. In both cases the total copper content in the membranes appears to be quite similar. At the same time, it is important to emphasize that the stability of Cu2S-NPs is far higher due to a far lower trend for oxidation of Cu2S-NPs in comparison with Cu0-NPs.


Intermatrix synthesis: easy technique permitting preparation of polymer-stabilized nanoparticles with desired composition and structure.

Ruiz P, Macanás J, Muñoz M, Muraviev DN - Nanoscale Res Lett (2011)

Total Cu and Cu2S content in nanocomposites versus Cu mmols and in 2nd metal-loading solution.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211432&req=5

Figure 4: Total Cu and Cu2S content in nanocomposites versus Cu mmols and in 2nd metal-loading solution.
Mentions: Figure 4 shows Cu0-NPs content inside the nanocomposite membrane after two metal-loading-reduction cycles and Cu2S-NPs content after one metal-loading reduction followed by the metal-loading-precipitation cycle. In both cases the total copper content in the membranes appears to be quite similar. At the same time, it is important to emphasize that the stability of Cu2S-NPs is far higher due to a far lower trend for oxidation of Cu2S-NPs in comparison with Cu0-NPs.

Bottom Line: The synthesis of polymer-stabilized nanoparticles (PSNPs) can be successfully carried out using intermatrix synthesis (IMS) technique, which consists in sequential loading of the functional groups of a polymer with the desired metal ions followed by nanoparticles (NPs) formation stage.This allows for repeating the cycles to increase the NPs content or to obtain NPs with different structures and compositions (e.g. core-shell or core-sandwich).This article reports the results on the further development of the IMS technique.

View Article: PubMed Central - HTML - PubMed

Affiliation: Analytical Chemistry Division, Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain. Patricia.Ruiz.Nicolas@uab.cat.

ABSTRACT
The synthesis of polymer-stabilized nanoparticles (PSNPs) can be successfully carried out using intermatrix synthesis (IMS) technique, which consists in sequential loading of the functional groups of a polymer with the desired metal ions followed by nanoparticles (NPs) formation stage. After each metal-loading-NPs-formation cycle, the functional groups of the polymer appear to be regenerated. This allows for repeating the cycles to increase the NPs content or to obtain NPs with different structures and compositions (e.g. core-shell or core-sandwich). This article reports the results on the further development of the IMS technique. The formation of NPs has been shown to proceed by not only the metal reduction reaction (e.g. Cu0-NPs) but also by the precipitation reaction resulting in the IMS of PSNPs of metal salts (e.g. CuS-NPs).

No MeSH data available.