Controlled manipulation and actuation of micro-objects with magnetotactic bacteria

Autor:	Guillaume Langlois, Sylvain Martel, Serge Ngakeng, Charles Tremblay
Rok vydání:	2006
Předmět:	Nuclear magnetic resonance Materials science Electrical current Physics and Astronomy (miscellaneous) Magnetotactic bacteria Cell locomotion Magnetosome Biophysics Magnetospirillum gryphiswaldense Biomagnetism
Zdroj:	Applied Physics Letters. 89:233904
ISSN:	1077-3118 0003-6951
Popis:	Bacterial actuation and manipulation are demonstrated where Magnetospirillum gryphiswaldense magnetotactic bacteria (MTB) are used to push 3 μ m beads at an average velocity of 7.5 μ m s − 1 along preplanned paths by modifying the torque on a chain of magnetosomes in the bacterium with a directional magnetic field of at least 0.5 G generated from a small programmed electrical current. But measured average thrusts of 0.5 and 4 pN of the flagellar motor of a single Magnetospirillum gryphiswaldense and MC-1 MTB suggest that average velocities greater than 16 and 128 μ m s − 1 , respectively could be achieved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::22188d26962bb8009b131a63b9b5fcfb https://doi.org/10.1063/1.2402221 Zobrazit plný text záznamu