Controlled nanoscale motion

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Here we outline the design principles at the basis of redox switching of molecular motion in artificial nanodevices. Redox processes, chemically, electrically, or photochemically induced, can indeed supply the energy to bring about molecular motions. Moreover, in the case of electrically and photochemically induced processes, electrochemical and photochemical techniques can be used to read the state of the system, and thus to control and monitor the operation of the device.

Some selected examples are also reported to describe the most representative achievements in this research area. Redox Signal.

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Other particular features of molecular machines. Molecular machines working on surfaces and at interfaces. Molecule-based solid-state electronic circuits. Login to your account Username. Forgot password? Keep me logged in. New User. Change Password. Old Password. New Password. Password Changed Successfully Your password has been changed.

Create a new account Email. Due to the small size of the particles on the detector, we applied the localization algorithm with a small fitting window. This introduced pixel locking error, in which the particle positions were localized toward the center of the pixels. The pixel locking error was corrected removed by applying the single pixel interior fill factor SPIFF algorithm 12 , The nm- and nm-diameter Ag nanoparticles were differentiated by imaging them on the sCMOS array detector Andor, Neo and observing differences in their relative size and brightness.

The nm-diameter particles appeared larger on the sCMOS i. We state that we used nm diameter and nm diameter Ag NPs for the experiments based on the manufacturer's stated specifications Nanocompsix. However, as shown in the Supplementary Information, we determined that the actual typical diameters of the larger nanoparticles is nm. We performed 11 independent experiments, each of which was frames in length. Of these experiments, we limited the analysis to cases in which we observed two particles in the trap without a third particle nearby.

We used the intensity information from the sCMOS detector to identify whether the particle pair was a homodimer five particle pairs, frames or a heterodimer 12 particle pairs, 18, frames. Separation-dependent MSD curves were calculated by identifying 9 trajectories of homodimer pairs and 11 trajectories of heterodimer pairs that were at optical binding separation less than 1. Then, we used their trajectories to calculate the red MSD curve that is shown in Fig. Newton I. Philosophiae Naturalis Principia Mathematica. Prostat apud plures Bibliopolas, Ivlev, A. X 5 , Sukhov, S.

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A Supramolecular Approach to Nanoscale Motion: Polymersome-Based Self-Propelled Nanomotors.

Actio et reactio in optical binding. Express 23 , — Dynamics of an optically bound structure made of particles of unequal sizes. Chen, H. Micromachines 9 , 41 Shao L. Light-driven rotation of plasmonic nanomotors. Xu, L. Figliozzi, P. Driven optical matter: dynamics of electrodynamically coupled nanoparticles in an optical ring vortex. E 95 , Sule, N. Rotation and negative torque in electrodynamically bound nanoparticle dimers. Roichman, Y. Anomalous collective dynamics in optically driven colloidal rings.

E 75 , Sbalzarini, I. Feature point tracking and trajectory analysis for video imaging in cell biology. Burov, S. Single-pixel interior filling function approach for detecting and correcting errors in particle tracking. USA , — Yifat, Y. Analysis and correction of errors in nanoscale particle tracking using the Single-pixel interior filling function SPIFF algorithm.

Burns, M. Optical binding. Dholakia, K. Colloquium: gripped by light: Optical binding. Yan, Z. Guiding spatial arrangements of silver nanoparticles by optical binding interactions in shaped light fields. ACS Nano 7 , — Jiang, H. Active motion of a Janus particle by self-thermophoresis in a defocused laser beam. Einstein, A. On the motion of small particles suspended in liquids at rest required by the molecular-kinetic theory of heat. Metzler, R. The restaurant at the end of the random walk: recent developments in the description of anomalous transport by fractional dynamics.


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Dynamic consequences of optical spin-orbit interaction. Photonics 9 , — Light Sci. Xu, Y. Electromagnetic scattering by an aggregate of spheres. Ng, J. Photonic clusters formed by dielectric microspheres: Numerical simulations. B 72 , On the motion of small particles suspended in liquids at rest required by the molecular-kinetic theory of heat. Metzler, R. The restaurant at the end of the random walk: recent developments in the description of anomalous transport by fractional dynamics.

Dynamic consequences of optical spin-orbit interaction.

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Photonics 9 , — Light Sci. Xu, Y. Electromagnetic scattering by an aggregate of spheres.


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  4. Ng, J. Photonic clusters formed by dielectric microspheres: Numerical simulations. B 72 , Li, J. Shaping light beams in the nanometer scale: A Yagi-Uda nanoantenna in the optical domain. B 76 , Kosako, T. Directional control of light by a nano-optical Yagi-Uda antenna. Photonics 4 , Liaw, J. Spinning gold nanoparticles driven by circularly polarized light. Simpson, S. Optical binding of nanowires. Tong, L.

    References

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    We thank Dr. Tian-Song Deng for his help in the characterization experiments of the Ag nanoparticles.

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    Peterson, John Parker. Correspondence to Norbert F. Reprints and Permissions.

    NANO ODYSSEY [ A journey to soft matter at the nanoscale ]

    Nano Letters Advanced search. Skip to main content. Subjects Nanoparticles Nanophotonics and plasmonics Optical manipulation and tweezers. Full size image. Particle imaging and tracking Following data acquisition, we tracked the particle positions using the Mosaic particle tracking toolbox for ImageJ Particle characterization The nm- and nm-diameter Ag nanoparticles were differentiated by imaging them on the sCMOS array detector Andor, Neo and observing differences in their relative size and brightness. Data analysis We performed 11 independent experiments, each of which was frames in length.

    References 1. Google Scholar 3. Article Google Scholar 6. Article Google Scholar 8. Article Google Scholar Article Google Scholar Download references. Acknowledgements We thank Dr. Ethics declarations Conflict of interest The authors declare that they have no conflict of interest. Electronic supplementary material Supplemental material pdf. Video 1 - Ag homodimer in ring trap.

    Video 2 - Ag heterodimer in ring trap - CW motion. Video 3 - Ag heterodimer in ring trap - CW motion.