Open Access
Journal of Colloid and Interface Science, volume 580, pages 180-191
Nanodiamond-stabilized Pickering emulsions: Microstructure and rheology.
Farias Barbara V
1
,
Brown Derek
1
,
Hearn Allison
1
,
Nunn Nicholas A.
2
,
Shenderova Olga A.
2
,
Khan Saad A
1
1
Department of Chemical and Biomolecular Engineering, 911 Partners Way, Engineering Building 1, Box 7905, North Carolina State University, Raleigh, NC 27695-7905, United States
|
2
Adámas Nanotechnologies, 8100 Brownleigh Drive, Raleigh, NC 27617, United States.
|
Publication type: Journal Article
Publication date: 2020-11-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 9.9
ISSN: 00219797, 10957103
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Colloid and Surface Chemistry
Biomaterials
Abstract
We envisage the use of hydroxylated detonation nanodiamonds (ND-OH), a relatively novel carbonaceous filler with high adsorption activity, small size, and large surface area to create Pickering emulsions. The emulsion behavior under shear and the extent to which the microstructure can rebuild after breakdown is dependent on its yield stress.Using a model system consisting of isopropyl palmitate and water stabilized by ND-OH particles, we investigate the stability of these emulsions, their microstructure and rheological behavior as a function of ND-OH concentration.Confocal microscopy reveals that increasing ND-OH concentration results in smaller droplet sizes in the emulsions. This behavior is consistent with our rheological results of higher elastic modulus G' and yield stress of the emulsion with increased ND-OH, as the presence of smaller droplets facilitates the formation of a densely packed network. We find the rheological behavior of these emulsions to be a hybrid of colloidal gels and surfactant-stabilized emulsions, with interparticle interactions and droplets deformability dictating their elasticity and yield stress behavior. Structure recovery following large shear reveals the degree of microstructure recovery to depend on the applied stress, with the recovered modulus collapsing into a single master-curve when the applied stress is scaled by the yield stress.
Citations by journals
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1 publication, 4.17%
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1 publication, 4.17%
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1 publication, 4.17%
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1 publication, 4.17%
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1 publication, 4.17%
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1 publication, 4.17%
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ACS Omega
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1 publication, 4.17%
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Citations by publishers
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14
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13 publications, 54.17%
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4 publications, 16.67%
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3 publications, 12.5%
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1 publication, 4.17%
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Springer Nature
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Springer Nature
1 publication, 4.17%
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Taylor & Francis
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Taylor & Francis
1 publication, 4.17%
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Pleiades Publishing
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Pleiades Publishing
1 publication, 4.17%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Farias B. V. et al. Nanodiamond-stabilized Pickering emulsions: Microstructure and rheology. // Journal of Colloid and Interface Science. 2020. Vol. 580. pp. 180-191.
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Farias B. V., Brown D., Hearn A., Nunn N. A., Shenderova O. A., Khan S. A. Nanodiamond-stabilized Pickering emulsions: Microstructure and rheology. // Journal of Colloid and Interface Science. 2020. Vol. 580. pp. 180-191.
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TY - JOUR
DO - 10.1016/j.jcis.2020.07.030
UR - https://doi.org/10.1016%2Fj.jcis.2020.07.030
TI - Nanodiamond-stabilized Pickering emulsions: Microstructure and rheology.
T2 - Journal of Colloid and Interface Science
AU - Farias, Barbara V
AU - Brown, Derek
AU - Hearn, Allison
AU - Nunn, Nicholas A.
AU - Shenderova, Olga A.
AU - Khan, Saad A
PY - 2020
DA - 2020/11/01 00:00:00
PB - Elsevier
SP - 180-191
VL - 580
SN - 0021-9797
SN - 1095-7103
ER -
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@article{2020_Farias,
author = {Barbara V Farias and Derek Brown and Allison Hearn and Nicholas A. Nunn and Olga A. Shenderova and Saad A Khan},
title = {Nanodiamond-stabilized Pickering emulsions: Microstructure and rheology.},
journal = {Journal of Colloid and Interface Science},
year = {2020},
volume = {580},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016%2Fj.jcis.2020.07.030},
pages = {180--191},
doi = {10.1016/j.jcis.2020.07.030}
}