TY - JOUR
T1 - Programmed Transport and Release of Cells by Self-Propelled Micromotors
AU - Yoshizumi, Yoshitaka
AU - Okubo, Kyohei
AU - Yokokawa, Masatoshi
AU - Suzuki, Hiroaki
PY - 2016/9/20
Y1 - 2016/9/20
N2 - Autonomous transport and release of bacterial cells by self-propelled micromotors were achieved. The motors consisted of zinc and platinum hemispheres formed on polystyrene beads and moved as a result of simultaneous redox reactions occurring on both metal ends. The highly negative redox potential of zinc enabled the selection of a wide variety of organic redox compounds as fuels, such as methanol and p-benzoquinone. The movement of motors was observed in solutions of fuels. To realize autonomous capture, transport, and release of cargo, a self-assembled monolayer (SAM) was formed on the platinum part of the motor. This SAM could be desorbed by coupling the reaction with the dissolution of zinc, which could also be controlled by adjusting the concentration of Zn2+ ions. Escherichia coli (E. coli) cells were captured by the motor (due to hydrophobic interactions), transported, and released following SAM desorption at the mixed potential.
AB - Autonomous transport and release of bacterial cells by self-propelled micromotors were achieved. The motors consisted of zinc and platinum hemispheres formed on polystyrene beads and moved as a result of simultaneous redox reactions occurring on both metal ends. The highly negative redox potential of zinc enabled the selection of a wide variety of organic redox compounds as fuels, such as methanol and p-benzoquinone. The movement of motors was observed in solutions of fuels. To realize autonomous capture, transport, and release of cargo, a self-assembled monolayer (SAM) was formed on the platinum part of the motor. This SAM could be desorbed by coupling the reaction with the dissolution of zinc, which could also be controlled by adjusting the concentration of Zn2+ ions. Escherichia coli (E. coli) cells were captured by the motor (due to hydrophobic interactions), transported, and released following SAM desorption at the mixed potential.
UR - http://www.scopus.com/inward/record.url?scp=84988600787&partnerID=8YFLogxK
U2 - 10.1021/acs.langmuir.5b04206
DO - 10.1021/acs.langmuir.5b04206
M3 - Article
C2 - 27571037
AN - SCOPUS:84988600787
VL - 32
SP - 9381
EP - 9388
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 37
ER -