Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure
Publication type: Journal Article
Publication date: 2017-09-26
scimago Q1
wos Q3
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Protein adsorption on nanoparticle surfaces plays a critical role in biological systems, and bovine serum albumin (BSA) is a useful model protein to study due to its high abundance and similar properties as its human variant. Herein, a quantitative understanding of the interaction between titanium dioxide (TiO2) nanoparticle (22 nm average diameter) and BSA was carried out to explore the effect of pH on surface coverage and adsorbed protein structure. Experiments were conducted under different pH conditions (pH 7.4, 4.5, and 2.0) that simulate the pH of blood, lung, and stomach fluids, respectively. Attenuated total reflectance–Fourier transform infrared (ATR-FTIR) spectroscopy was used for in situ adsorption characterization and protein secondary structure analysis. In addition, thermogravimetric analysis (TGA) was used to provide quantitative determination of the surface coverage. These results show that BSA adsorption on TiO2 highly depends on pH as well as the presence of salts. Furthermore, it is als...
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Xu Z., Grassian V. H. Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure // Journal of Physical Chemistry C. 2017. Vol. 121. No. 39. pp. 21763-21771.
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Xu Z., Grassian V. H. Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure // Journal of Physical Chemistry C. 2017. Vol. 121. No. 39. pp. 21763-21771.
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RIS
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TY - JOUR
DO - 10.1021/acs.jpcc.7b07525
UR - https://doi.org/10.1021/acs.jpcc.7b07525
TI - Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure
T2 - Journal of Physical Chemistry C
AU - Xu, Zhenzhu
AU - Grassian, V. H.
PY - 2017
DA - 2017/09/26
PB - American Chemical Society (ACS)
SP - 21763-21771
IS - 39
VL - 121
SN - 1932-7447
SN - 1932-7455
ER -
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BibTex (up to 50 authors)
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@article{2017_Xu,
author = {Zhenzhu Xu and V. H. Grassian},
title = {Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure},
journal = {Journal of Physical Chemistry C},
year = {2017},
volume = {121},
publisher = {American Chemical Society (ACS)},
month = {sep},
url = {https://doi.org/10.1021/acs.jpcc.7b07525},
number = {39},
pages = {21763--21771},
doi = {10.1021/acs.jpcc.7b07525}
}
Cite this
MLA
Copy
Xu, Zhenzhu, and V. H. Grassian. “Bovine Serum Albumin Adsorption on TiO2 Nanoparticle Surfaces: Effects of pH and Coadsorption of Phosphate on Protein–Surface Interactions and Protein Structure.” Journal of Physical Chemistry C, vol. 121, no. 39, Sep. 2017, pp. 21763-21771. https://doi.org/10.1021/acs.jpcc.7b07525.