Science Robotics

Supplementary Materials

Supplementary Material for:

Mobile nanotweezers for active colloidal manipulation

Souvik Ghosh and Ambarish Ghosh*

*Corresponding author. Email: ambarish{at}iisc.ac.in

Published 10 January 2018, Sci. Robot. 3, eaaq0076 (2018)
DOI: 10.1126/scirobotics.aaq0076

This PDF file includes:

  • Fig. S1. Schematic of the experimental setup.
  • Fig. S2. Radial profile of the illumination intensity.
  • Fig. S3. Optical transmission data for MNT-D1 peaking around the laser wavelength of 447 nm.
  • Fig. S4. Interparticle spacing and size distribution for MNT-D1.
  • Fig. S5. Role of thermal effects.
  • Fig. S6. Histogram of position fluctuations for an untrapped bead.
  • Fig. S7. Minimum intensity required for trapping 1-μm beads versus time.
  • Fig. S8. Trap and release of nonfunctionalized nanodiamond.
  • Fig. S9. Geometry used in our numerical model.
  • Fig. S10. Electric field intensity enhancement.
  • Fig. S11. Geometry for simulation.
  • Fig. S12. Convective velocity pattern and increased temperature distribution around MNT-D2.
  • Fig. S13. Convective velocity pattern and increased temperature distribution around MNT-D1.
  • Fig. S14. Experimental estimation of trapping force.
  • Fig. S15. Theoretical estimation of trapping force.
  • References (4856)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). Demonstration of trapping and transport of silica beads of diameter 1 and 2 μm over a distance of 22 μm using MNT-D1.
  • Movie S2 (.mp4 format). Demonstration of trapping and releasing of silica beads of diameter 150 nm using MNT-D1.
  • Movie S3 (.mp4 format). Demonstrating superior spatio-temporal control over particle manipulation by tracing out the letter "N" with MNT-D1.
  • Movie S4 (.avi format). Size selective transport of 2 μm Silica beads using MNT-D1.
  • Movie S5 (.avi format). Size selective transport of 500 nm PS beads using MNT-D2.
  • Movie S6 (.mp4 format). Demonstration of trapping and releasing of sub-micron size bacteria (Staphylococcus aureus) using MNT-D2.
  • Movie S7 (.mp4 format). Demonstration of trapping and 3D-transport of 120 nm fluorescent nanodiamonds using MNT-D2.
  • Movie S8 (.mp4 format). Demonstration of pinning-depinning mechanism with MNT-D1.

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