Colloidal Tornadoes in a Vial under Gravitational Sedimentation

Autor/inn/en	Zhang, Jianrui; Antonietti, Markus; Kumru, Baris
Titel	Colloidal Tornadoes in a Vial under Gravitational Sedimentation
Quelle	In: Journal of Chemical Education, 98 (2021) 4, S.1347-1351 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Kumru, Baris)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.0c01507
Schlagwörter	Chemistry; Motion; Energy; Scientific Concepts; Demonstrations (Educational); Science Instruction + Suchen Sie Ihr Suchwort? Chemie; Bewegungsablauf; Energie; Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
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. (As Provided).
Anmerkungen	Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01