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  Colloidal tornadoes in a vial under gravitational sedimentation

Zhang, J., Antonietti, M., & Kumru, B. (2021). Colloidal tornadoes in a vial under gravitational sedimentation. Journal of Chemical Education, 98(4), 1347-1351. doi:10.1021/acs.jchemed.0c01507.

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Article.pdf (Publisher version), 4MB
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 Creators:
Zhang, Jianrui1, Author              
Antonietti, Markus2, Author              
Kumru, Baris3, Author              
Affiliations:
1Bernhard Schmidt, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2149676              
2Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              
3Baris Kumru, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3202957              

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Free keywords: General Public; Public Understanding/Outreach; Multimedia-Based Learning; Colloids; Noncovalent Interactions
 Abstract: Collective motion in living matter is highly intriguing but can also be observed in charged colloidal systems. Collective motion observed in colloidal systems requires extensive material synthesis, external stimuli, and advanced characterization methods that might be highly costly to be employed for teaching. Besides that, colloidal systems can inherently possess dynamic movements. Generally, colloidal sedimentation is pictured as a linear movement, but under certain conditions autonomously activated sedimentation can be attained. In this demonstration, a simple formation of colloidal tornadoes will be explored by gravitational force as the sole stimulus. This demonstration is ideal for the general public for colloid chemistry learning, and these findings can be coupled to colloidal stability lectures.

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Language(s): eng - English
 Dates: 2021-02-232021
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.jchemed.0c01507
BibTex Citekey: doi:10.1021/acs.jchemed.0c01507
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Title: Journal of Chemical Education
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 98 (4) Sequence Number: - Start / End Page: 1347 - 1351 Identifier: ISSN: 0021-9584