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Cooperative Assembly of Magnetic Nanoparticles and Block Copolypeptides in Aqueous Media
Abstract
We demonstrate that highly crystalline, monodisperse maghemite (γ-Fe 2 O 3 ) nanoparticles, synthesized in organic solvents, can be effectively transferred into an aqueous medium using an ammonium salt and stabilized at neutral pH. The nanoparticles remain monodisperse, as characterized by TEM and XRD, as well as superparamagnetic, as determined by SQUID magnetometry. When the aqueous maghemite is combined with the block copolypeptide poly(EG 2 -lys) 100 - b -poly(asp) 30, the nanoparticles assemble into uniform clusters comprised of approximately 20 nanoparticles, resulting in a water soluble block copolypeptide−nanoparticle composite structure.
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Cited by
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Périgo, E. A., Hemery, G., Sandre, O., Ortega, D., Garaio, E., Plazaola, F., & Teran, F. J. (2015) · Applied Physics Reviews · doi:10.1063/1.4935688 · Cited by 836
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Krishnan, K. M. (2010) · IEEE Transactions on Magnetics · doi:10.1109/tmag.2010.2046907 · Cited by 819
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Ai, H., Flask, C., Weinberg, B., Shuai, X. ‐., Pagel, M. D., Farrell, D., Duerk, J., & Gao, J. (2005) · Advanced Materials · doi:10.1002/adma.200401904 · Cited by 465
Hydrophobic Interactions Modulate Self-Assembly of Nanoparticles
Sánchez-Iglesias, A., Grzelczak, M., Altantzis, T., Goris, B., Pérez-Juste, J., Bals, S., Van Tendeloo, G., Donaldson, S. H., Chmelka, B. F., Israelachvili, J. N., et al. (2012) · ACS Nano · doi:10.1021/nn3047605 · Cited by 435
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Metadata
- Authors
- Euliss, L. E., Grancharov, S. G., O'Brien, S., Deming, T. J., Stucky, G. D., Murray, C. B., & Held, G. A.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-09-06
- Volume
- 3
- Issue
- 11
- Pages
- 1489-1493
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2031035316
- Cited by
- 285
- References
- 0
- FWCI
- 10.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- Euliss, L. E., Grancharov, S. G., O'Brien, S., Deming, T. J., Stucky, G. D., Murray, C. B., & Held, G. A. (2003). Cooperative Assembly of Magnetic Nanoparticles and Block Copolypeptides in Aqueous Media. Nano Letters. https://doi.org/10.1021/nl034472y
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