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This page contains materials referenced by our publications.



“Chemotaxis of Non-Biological Nanorods”
Yiying Hong, Nicole M. K. Blackman, Nathaniel D. Kopp, Ayusman Sen* and Darrell Velegol
Phys. Rev. Lett. 2007, 99, 178103. DOI: 10.1103/PhysRevLett.99.178103

Supplementary Video:
Chemotaxis of PtAu rods. PtAu rods move toward the 30% H2O2 soaked hydrogel (top left corner) at 0.7 hour of experiment. Movie was taken by transmission microscope at bright field at 50× magnification and 30× the real speed.

Real-time remote steering of striped metallic rods in a 5% hydrogen peroxide solution.


“Catalytic Nanomotors: Remote-Controlled Autonomous Movement of Striped Metallic Nanorods”
Timothy R. Kline, Walter F. Paxton, Thomas E. Mallouk and Ayusman Sen
Angew. Chem., Int. Ed. 2005, 44, 744.

Referee Video:
Real-time remote steering of striped metallic rods in a 5% hydrogen peroxide solution.
Real-time Brownian movement of 2 micron platinum/gold rods in pure water.


“Catalytic Nanomotors: Autonomous Movement of Striped Nanorods”
Walter F. Paxton, Kevin C. Kistler, Christine C. Olmeda, Ayusman Sen, Sarah K. St. Angelo, Yanyan Cao, Thomas E. Mallouk, Pau; E. Lammert and Vincent H. Crespi
J. Am. Chem. Soc. 2004, 126, 13424.

Video 1:
Real-time Brownian movement of 2 micron platinum/gold rods in pure water.

Real-time non-Brownian movement of 2 micron platinum/gold rods in a 2.5% hydrogen peroxide solution.


“Catalytic Nanomotors: Autonomous Movement of Striped Nanorods”
Walter F. Paxton, Kevin C. Kistler, Christine C. Olmeda, Ayusman Sen, Sarah K. St. Angelo, Yanyan Cao, Thomas E. Mallouk, Pau; E. Lammert and Vincent H. Crespi
J. Am. Chem. Soc. 2004, 126, 13424.

Video 2:
Real-time non-Brownian movement of 2 micron platinum/gold rods in a 2.5% hydrogen peroxide solution.

Real-time rotational movement of a 100 micron diameter free gear with Pt catalysts on the gear teeth in a 1% hydrogen peroxide solution.


“Directed Rotational Motion of Microscale Objects Using Interfacial Tension Gradients”
Jeffrey Catchmark, Shyamala Subramanian and Ayusman Sen
Small 2005, 1, 202.

Video:
Real-time rotational movement of a 100 micron diameter free gear with platinum catalysts on the gear teeth in a 1% hydrogen peroxide solution.

Real-time remote-controlled 2 micron magnetic metallic nanorods in a 2.5% hydrogen peroxide solution that are steered by magnetic field which is turned off toward the end of the movie.


“Catalytic Nanomotors: Remote-Controlled Autonomous Movement of Striped Metallic Nanorods”
Timothy R. Kline, Walter F. Paxton, Thomas E. Mallouk, and Ayusman Sen
Angew. Chem., Int. Ed. 2005, 44, 744.

Video:
Real-time remote-controlled 2 micron magnetic metallic nanorods in a 2.5% hydrogen peroxide solution that are steered by magnetic field which is turned off toward the end of the movie.