Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation
Wolff A, Frese K, Wißbrock M, Eckstädt K, Ennen I, Hetaba W, Loeffler S, Regtmeier A-K, Thomas P, Sewald N, Schattschneider P, et al. (2012)
Journal of Nanoparticle Research 14(10): 1161.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Wolff, AnnalenaUniBi;
Frese, Katrin;
Wißbrock, MarcoUniBi;
Eckstädt, KatrinUniBi;
Ennen, Inga;
Hetaba, Walid;
Loeffler, Stefan;
Regtmeier, Anna-KristinaUniBi;
Thomas, PatrickUniBi;
Sewald, NorbertUniBi ;
Schattschneider, Peter;
Hütten, AndreasUniBi
Alle
Alle
Einrichtung
Abstract / Bemerkung
Nanoparticle syntheses utilizing biomimetic approaches have advanced in recent years. Polypeptides, with their ability to influence inorganic crystal growth, are a topic of great interest. Their effect on the particle formation has not been completely understood yet. Here we report a bioinspired synthesis of cobalt ferrite nanoparticles carried out in vitro under mild conditions using a short, synthetic polypeptide c25-mms6. The influence of c25-mms6 on the nanoparticle formation was investigated by comparing the particles synthesized with the polypeptide to particles synthesized under equivalent conditions without c25-mms6. A separation into D-small,D-av = 10 nm small, superparamagnetic spheres and D-big,D-av = 48 nm disc-like single-domain particles was observed. Non-stoichiometric cobalt ferrite particles with a shape-dependent stoichiometry were produced in the polypeptide-free synthesis. Stoichiometric D-small,D-av = 10 nm CoFe2O4 spheres and D-big,D-av = 60-70 nm Co2FeO4 ferromagnetic discs were obtained in the polypeptide-enhanced synthesis. The results indicate that the polypeptide acts as a catalyst during the multistep biomineralization process and allows the formation of stoichiometric phases which cannot be synthesized at room temperature using conventional bottom-up syntheses.
Stichworte
polypeptide;
Catalytic;
Bioinspired synthesis;
Magnetic nanoparticles;
polypeptide;
Influence;
Biomineralization process;
Cobalt ferrite nanoparticles
Erscheinungsjahr
2012
Zeitschriftentitel
Journal of Nanoparticle Research
Band
14
Ausgabe
10
Art.-Nr.
1161
ISSN
1388-0764
eISSN
1572-896X
Page URI
https://pub.uni-bielefeld.de/record/2536090
Zitieren
Wolff A, Frese K, Wißbrock M, et al. Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation. Journal of Nanoparticle Research. 2012;14(10): 1161.
Wolff, A., Frese, K., Wißbrock, M., Eckstädt, K., Ennen, I., Hetaba, W., Loeffler, S., et al. (2012). Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation. Journal of Nanoparticle Research, 14(10), 1161. doi:10.1007/s11051-012-1161-5
Wolff, Annalena, Frese, Katrin, Wißbrock, Marco, Eckstädt, Katrin, Ennen, Inga, Hetaba, Walid, Loeffler, Stefan, et al. 2012. “Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation”. Journal of Nanoparticle Research 14 (10): 1161.
Wolff, A., Frese, K., Wißbrock, M., Eckstädt, K., Ennen, I., Hetaba, W., Loeffler, S., Regtmeier, A. - K., Thomas, P., Sewald, N., et al. (2012). Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation. Journal of Nanoparticle Research 14:1161.
Wolff, A., et al., 2012. Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation. Journal of Nanoparticle Research, 14(10): 1161.
A. Wolff, et al., “Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation”, Journal of Nanoparticle Research, vol. 14, 2012, : 1161.
Wolff, A., Frese, K., Wißbrock, M., Eckstädt, K., Ennen, I., Hetaba, W., Loeffler, S., Regtmeier, A.-K., Thomas, P., Sewald, N., Schattschneider, P., Hütten, A.: Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation. Journal of Nanoparticle Research. 14, : 1161 (2012).
Wolff, Annalena, Frese, Katrin, Wißbrock, Marco, Eckstädt, Katrin, Ennen, Inga, Hetaba, Walid, Loeffler, Stefan, Regtmeier, Anna-Kristina, Thomas, Patrick, Sewald, Norbert, Schattschneider, Peter, and Hütten, Andreas. “Influence of the synthetic polypeptide c25-mms6 on cobalt ferrite nanoparticle formation”. Journal of Nanoparticle Research 14.10 (2012): 1161.
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