We present a direct nanotube-microsphere tagging technique for the controlled three-dimensional (3D) manipulation and transportation of vanadium oxide nanotubes (VOx -NTs) with optical tweezers. The high scattering and absorptive nature of the VOx -NTs preclude the 3D optical trapping of such nanostructures. VOx -NTs are adhered to 3-aminopropyl-triethoxysilane functionalized silica microspheres, which act as handles for indirectly manipulating and transporting the nanotubes in three dimensions with optical tweezers. The optical tweezers can also operate as optical scissors that can remove the dielectric handles and trim these nanotubes. This technique may be extended to the optical manipulation of nanotubes of any material.
Bibliographical noteFunding Information:
The authors would like to thank Pascal Andre for use of equipment for functionalization process. L. I. Vera-Robles would like to thank the Mexican Consejo Nacional de Ciencia y Tecnología (CONACyT) for the scholarship. J. L. Hernández-Pozos acknowledges the support from the Academia Mexicana de Ciencias and the Royal Society (U.K.). K.D. is a Royal Society-Wolfson Merit Award holder. We thank the EPSRC for funding.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)