Photoactivated Colloidal Dockers for Cargo Transportation. Palacci, J., Sacanna, S., Vatchinsky, A., Chaikin, P., M., & Pine, D., J. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 135(43):15978-15981, AMER CHEMICAL SOC, 10, 2013.
abstract   bibtex   
We introduce a self-propelled colloidal hematite docker that can be steered to a small particle cargo many times its size, dock, transport the cargo to a remote location, and then release it. The self-propulsion and docking are reversible and activated by visible light. The docker can be steered either by a weak uniform magnetic field or by nanoscale tracks in a textured substrate. The light-activated motion and docking originate from osmotic/phoretic particle transport in a concentration gradient of fuel, hydrogen peroxide, induced by the photocatalytic activity of the hematite. The docking mechanism is versatile and can be applied to various materials and shapes. The hematite dockers are simple single-component particles and are synthesized in bulk quantities. This system opens up new possibilities for designing complex micrometer-size factories as well as new biomimetic systems.
@article{
 title = {Photoactivated Colloidal Dockers for Cargo Transportation},
 type = {article},
 year = {2013},
 identifiers = {[object Object]},
 pages = {15978-15981},
 volume = {135},
 month = {10},
 publisher = {AMER CHEMICAL SOC},
 city = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},
 id = {ebba912d-f0b1-3a1a-a91f-fa04bda87992},
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 last_modified = {2017-03-14T12:30:08.401Z},
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 abstract = {We introduce a self-propelled colloidal hematite docker that can be
steered to a small particle cargo many times its size, dock, transport
the cargo to a remote location, and then release it. The self-propulsion
and docking are reversible and activated by visible light. The docker
can be steered either by a weak uniform magnetic field or by nanoscale
tracks in a textured substrate. The light-activated motion and docking
originate from osmotic/phoretic particle transport in a concentration
gradient of fuel, hydrogen peroxide, induced by the photocatalytic
activity of the hematite. The docking mechanism is versatile and can be
applied to various materials and shapes. The hematite dockers are simple
single-component particles and are synthesized in bulk quantities. This
system opens up new possibilities for designing complex micrometer-size
factories as well as new biomimetic systems.},
 bibtype = {article},
 author = {Palacci, Jeremie and Sacanna, Stefano and Vatchinsky, Adrian and Chaikin, Paul M and Pine, David J},
 journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY},
 number = {43}
}

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