Please use this identifier to cite or link to this item:
https://essuir.sumdu.edu.ua/handle/123456789/85352
Or use following links to share this resource in social networks:
Tweet
Recommend this item
Title | Rheological properties of superparamagnetic iron oxide nanoparticles |
Authors |
Javanbakht, T.
Laurent, S. Stanicki, D. Salzmann, I. |
ORCID | |
Keywords |
rheology SPIONs nanomaterials surface charge mechanical engineering |
Type | Article |
Date of Issue | 2021 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/85352 |
Publisher | Sumy State University |
License | Creative Commons Attribution - NonCommercial 4.0 International |
Citation | Javanbakht T., Laurent S., Stanicki D., Salzmann I. (2021).Rheological properties of superparamagnetic iron oxide nanoparticles. Journal of Engineering Sciences, Vol. 8(1), pp. C29–C37, doi: 10.21272/jes.2021.8(1).c4 |
Abstract |
The present study focuses on the rheological properties of polyethylene glycol (PEG) modified, positively
charged, and negatively charged superparamagnetic iron oxide nanoparticles (SPIONs) at different temperatures. We
hypothesized that the surface properties of these nanoparticles in the water did not affect their rheological properties.
These nanoparticles had not the same surface properties as SPIONs-PEG had not to charge on their surface whereas
positively charged and negatively charged ones with amine and carboxyl groups as their surfaces had positive and
negative surface charges, respectively. However, their rheological behaviors were not different from each other. The
comparative rheological study of SPIONs revealed their pseudo-Newtonian behavior. The viscosity of SPIONs
decreased with the increase in temperature. At low shear rates, the shear stress of SPIONs was independent of rate and
increased with the increase of rate. Moreover, at high shear rates, the shear stress for PEG-SPIONs was more than those
for positively charged and negatively charged SPIONs. These measurements also revealed that at high shear rates, the
shear stress of samples decreased with the increase of temperature. The shear stress of samples decreased with the
increase of shear strain and the temperature. We also observed that all the samples had the same amount of shear strain
at each shear stress, which indicated the exact resistance of SPIONs to deformation. Furthermore, the shear modulus
decreased with time for these nanoparticles. These results suggest that these nanoparticles are promising candidates
with appropriate properties for fluid processing applications and drug vectors in biomedical applications. |
Appears in Collections: |
Journal of Engineering Sciences / Журнал інженерних наук |
Views

-823396818

-823396817

2125428993

1

7559679

255007

1

7559682

1

1

651223

5941

50325

7559684

1

-823396815

118490

1

1

1

98928

-674110267

-674110268

-1669121876

1147
Downloads

255005

1

2125428978

1

1

1

1

1

1

5939

1

1

1

210738972

1

-353420955

1
Files
File | Size | Format | Downloads |
---|---|---|---|
Javanbakht_jes_1_2021.pdf | 556.09 kB | Adobe PDF | 1983007951 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.