Journal ArticleDOI
Controlled propulsion of artificial magnetic nanostructured propellers.
Ambarish Ghosh,Peer Fischer +1 more
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TLDR
The construction and operation of chiral colloidal propellers that can be navigated in water with micrometer-level precision using homogeneous magnetic fields are reported.Abstract:
For biomedical applications, such as targeted drug delivery and microsurgery, it is essential to develop a system of swimmers that can be propelled wirelessly in fluidic environments with good control Here, we report the construction and operation of chiral colloidal propellers that can be navigated in water with micrometer-level precision using homogeneous magnetic fields The propellers are made via nanostructured surfaces and can be produced in large numbers The nanopropellers can carry chemicals, push loads, and act as local probes in rheological measurementsread more
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Journal ArticleDOI
Active Particles in Complex and Crowded Environments
Clemens Bechinger,Roberto Di Leonardo,Hartmut Löwen,Charles Reichhardt,Giorgio Volpe,Giovanni Volpe +5 more
TL;DR: In this article, the authors provide a guided tour through the development of artificial self-propelling microparticles and nanoparticles and their application to the study of nonequilibrium phenomena, as well as the open challenges that the field is currently facing.
Journal ArticleDOI
Microrobots for Minimally Invasive Medicine
TL;DR: The aim of this review is to provide a comprehensive survey of the technological state of the art in medical microrobots, to explore the potential impact of medical micRORobots and inspire future research in this field.
Journal ArticleDOI
Physics of microswimmers--single particle motion and collective behavior: a review.
TL;DR: The physics of locomotion of biological and synthetic microswimmers, and the collective behavior of their assemblies, are reviewed and the hydrodynamic aspects of swimming are addressed.
Journal ArticleDOI
Physics of Microswimmers - Single Particle Motion and Collective Behavior
TL;DR: In this article, the authors review the physics of locomotion of biological and synthetic microswimmers, and the collective behavior of their assemblies, including synchronization and the concerted beating of flagella and cilia.
Journal ArticleDOI
Magnetic Helical Micromachines: Fabrication, Controlled Swimming, and Cargo Transport
Soichiro Tottori,Li Zhang,Famin Qiu,Krzysztof Krawczyk,Alfredo Franco-Obregón,Bradley J. Nelson +5 more
TL;DR: A simple and general fabrication method for helical swimming micromachines by direct laser writing and e-beam evaporation is demonstrated and the magnetic helical devices exhibit varying magnetic shape anisotropy, yet always generate corkscrew motion using a rotating magnetic field.
References
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Life at low Reynolds number
TL;DR: Weisskopf as mentioned in this paper presented a transparencies of a tall rectangular transparent vessel of corn syrup, projected by an overhead projector turned on its side, which was itself a slightly edited transcript of a tape.
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Random walks in biology
TL;DR: This book is a lucid, straightforward introduction to the concepts and techniques of statistical physics that students of biology, biochemistry, and biophysics must know.
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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,Paul E. Lammert,Vincent H. Crespi +8 more
TL;DR: By solving the convection-diffusion equation in the frame of the moving rod, it was found that the interfacial tension force scales approximately as SR(2)gamma/muDL, where S is the area-normalized oxygen evolution rate, gamma is the liquid-vapor interfacial pressure, R is the rod radius, mu is the viscosity, D is the diffusion coefficient of oxygen, and L is the length of the rod.
Journal ArticleDOI
Microscopic artificial swimmers
TL;DR: It is shown that a linear chain of colloidal magnetic particles linked by DNA and attached to a red blood cell can act as a flexible artificial flagellum, which induces a beating pattern that propels the structure, and that the external fields can be adjusted to control the velocity and the direction of motion.
Journal ArticleDOI
A polymer gel with electrically driven motility
TL;DR: In this paper, the authors describe a chemomechanical system of this sort based on a synthetic polymer gel, which is anionic, and positively charged surfactant molecules can therefore bind to its surface, inducing local shrinkage by decreasing the difference in osmotic pressure between the gel interior and the solution outside.