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Bovine Serum Albumin Adsorption onto Colloidal Al2O3 Particles: A New Model Based on Zeta Potential and UV−Vis Measurements
Abstract
We investigated the adsorption of bovine serum albumin (BSA) on colloidal Al2O3 particles in an aqueous environment. Changes in the zeta potential of the Al2O3 particles upon the adsorption of BSA were measured using an electro-acoustic technique. The mass of protein adsorbed was determined by using UV-vis spectroscopy. The change of the isoelectric point of the Al2O3 powder-protein suspension was found to be a function of adsorbed protein mass. It was shown that approximately one monolayer of BSA was needed to fully mask the surface and to compromise the charge of Al2O3. From titration experiments it follows that about 30-36% of the negatively charged groups of the protein form bonds with the protonated and charged Al2O3 surface. On the basis of our observations we introduced a new adsorption model for BSA on Al2O3 particles.
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Cites
Principles of protein-protein interactions
Jones, S., & Thornton, J. M. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.1.13 · Cited by 2,684
Inherent toxicity of aggregates implies a common mechanism for protein misfolding diseases
Bucciantini, M., Giannoni, E., Chiti, F., Baroni, F., Formigli, L., Zurdo, J., Taddei, N., Ramponi, G., Dobson, C. M., & Stefani, M. (2002) · Nature · doi:10.1038/416507a · Cited by 2,434
Cited by
Limbach, L. K., Li, Y., Grass, R. N., Brunner, T. J., Hintermann, M. A., Muller, M., Gunther, D., & Stark, W. J. (2005) · Environmental Science & Technology · doi:10.1021/es051043o · Cited by 779
Effects of surface wettability and contact time on protein adhesion to biomaterial surfaces
Xu, L.-C., & Siedlecki, C. A. (2007) · Biomaterials · doi:10.1016/j.biomaterials.2007.03.032 · Cited by 715
Jachimska, B., Wasilewska, M., & Adamczyk, Z. (2008) · Langmuir · doi:10.1021/la800548p · Cited by 377
Physico-chemical features of engineered nanoparticles relevant to their toxicity
Fubini, B., Ghiazza, M., & Fenoglio, I. (2010) · Nanotoxicology · doi:10.3109/17435390.2010.509519 · Cited by 297
Nanoparticle protein corona: from structure and function to therapeutic targeting
Bashiri, G., Padilla, M. S., Swingle, K. L., Shepherd, S. J., Mitchell, M. J., & Wang, K. (2023) · Lab on a Chip · doi:10.1039/d2lc00799a · Cited by 296
Metadata
- Authors
- Rezwan, K., Meier, L. P., Rezwan, M., Vörös, J., Textor, M., & Gauckler, L. J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-10-06
- Volume
- 20
- Issue
- 23
- Pages
- 10055-10061
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2051361096
- Cited by
- 314
- References
- 2
- FWCI
- 3.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rezwan, K., Meier, L. P., Rezwan, M., Vörös, J., Textor, M., & Gauckler, L. J. (2004). Bovine Serum Albumin Adsorption onto Colloidal Al2O3 Particles: A New Model Based on Zeta Potential and UV−Vis Measurements. Langmuir. https://doi.org/10.1021/la048459k
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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