Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles

Gooch J, Jalan AA, Jones S, Hine CR, Alam R, Garai S, Maye MM, Müller A, Zubieta J (2014)
Journal of Colloid and Interface Science 432: 144-150.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Gooch, Jonathan; Jalan, Abhishek A.; Jones, Stephanie; Hine, Corey R.; Alam, Rabeka; Garai, Somenath; Maye, Mathew M.; Müller, AchimUniBi ; Zubieta, Jon
Abstract / Bemerkung
The electrostatic assembly between a series of differently charged Mo-132-type Keplerates present in the compounds (NH4)(42)[{(Mo-VI)(Mo5O21)-O-VI(H2O)(6)}(12) {(MO2O4)-O-V(CH3COO)}(30)].ca. {300 H2O + 10 CH3COONH4} (Mo-132a), (NH4)(72-n)[{(H2O)(81-n) + (NH4)(n)} {(Mo-VI)(Mo5O21)-O-VI(H2O)(6)}(12) {(Mo2O4)-O-V(SO4)}(30)].ca. 200 H2O (Mo-132b), and Na-10(NH4)(62)[{(Mo-VI)(Mo5O21)-O-VI(H2O2)(6)}(12) {(Mo2O4)-O-V(HPO4)}(30). ca. {300H(2)O + 2Na(+) + 2NH(4)(+) + 4H(2)PO(4)(-)) (Mo-132c) with cationic gold nanoparticles (AuNPs) was investigated for the first time. The rapid electrostatic assembly from nanoscopic entities to micron scale aggregates was observed upon precipitation, which closely matched the point of aggregate electroneutrality. Successful assembly was demonstrated using UV-vis, DLS, TEM, and zeta-potential analysis. Results indicate that the point at which precipitation occurs is related to charge balance or electroneutrality, and that counterions at both the Mo-132 and AuNP play a significant role in assembly. (C) 2014 Elsevier Inc. All rights reserved.
Stichworte
scale aggregation; Micron; Electrostatic assembly; Au nanoparticles; Keplerate clusters; Zeta-potential analysis
Erscheinungsjahr
2014
Zeitschriftentitel
Journal of Colloid and Interface Science
Band
432
Seite(n)
144-150
ISSN
0021-9797
Page URI
https://pub.uni-bielefeld.de/record/2697245

Zitieren

Gooch J, Jalan AA, Jones S, et al. Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles. Journal of Colloid and Interface Science. 2014;432:144-150.
Gooch, J., Jalan, A. A., Jones, S., Hine, C. R., Alam, R., Garai, S., Maye, M. M., et al. (2014). Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles. Journal of Colloid and Interface Science, 432, 144-150. doi:10.1016/j.jcis.2014.06.059
Gooch, J., Jalan, A. A., Jones, S., Hine, C. R., Alam, R., Garai, S., Maye, M. M., Müller, A., and Zubieta, J. (2014). Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles. Journal of Colloid and Interface Science 432, 144-150.
Gooch, J., et al., 2014. Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles. Journal of Colloid and Interface Science, 432, p 144-150.
J. Gooch, et al., “Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles”, Journal of Colloid and Interface Science, vol. 432, 2014, pp. 144-150.
Gooch, J., Jalan, A.A., Jones, S., Hine, C.R., Alam, R., Garai, S., Maye, M.M., Müller, A., Zubieta, J.: Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles. Journal of Colloid and Interface Science. 432, 144-150 (2014).
Gooch, Jonathan, Jalan, Abhishek A., Jones, Stephanie, Hine, Corey R., Alam, Rabeka, Garai, Somenath, Maye, Mathew M., Müller, Achim, and Zubieta, Jon. “Keplerate cluster (Mo-132) mediated electrostatic assembly of nanoparticles”. Journal of Colloid and Interface Science 432 (2014): 144-150.

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Daten bereitgestellt von Europe PubMed Central.

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