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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.

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.


Related in: MedlinePlus

SEM images of cross section and surface of CuS nanocomposite (a-c) and TEM images corresponding to CuS- (d) and PbS-PSNPs (e) after their dissolution in DMF.
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Figure 3: SEM images of cross section and surface of CuS nanocomposite (a-c) and TEM images corresponding to CuS- (d) and PbS-PSNPs (e) after their dissolution in DMF.

Mentions: Figure 3a, b, c shows SEM images of a SPEEK-CuS-PSNPs nanocomposite synthesized by the precipitation version of IMS technique. As it is seen, the aggregation of CuS-NPs on the surface of supporting polymer results in the formation of a sort of nanoplates typical for CuS [32]. However, as it can be seen in Figure 3d, e, dissolution of CuS- and PbS-PSNP-containing nanocomposites in DMF leads to complete decomposition of these nanoplates into single INPs, which do not form any visible aggregates. This confirms high stabilizing efficiency of the SPEEK matrix towards INPs.


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)

SEM images of cross section and surface of CuS nanocomposite (a-c) and TEM images corresponding to CuS- (d) and PbS-PSNPs (e) after their dissolution in DMF.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 3: SEM images of cross section and surface of CuS nanocomposite (a-c) and TEM images corresponding to CuS- (d) and PbS-PSNPs (e) after their dissolution in DMF.
Mentions: Figure 3a, b, c shows SEM images of a SPEEK-CuS-PSNPs nanocomposite synthesized by the precipitation version of IMS technique. As it is seen, the aggregation of CuS-NPs on the surface of supporting polymer results in the formation of a sort of nanoplates typical for CuS [32]. However, as it can be seen in Figure 3d, e, dissolution of CuS- and PbS-PSNP-containing nanocomposites in DMF leads to complete decomposition of these nanoplates into single INPs, which do not form any visible aggregates. This confirms high stabilizing efficiency of the SPEEK matrix towards INPs.

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.


Related in: MedlinePlus