Opto-thermophoretic printing of Gold nanorods. All experiments were carried out using an optical setup consisting of a 532 nm continuous wave (CW) laser (Torus, Laser Quantum, Stockport, U.K.). The laser beam was directed through a 5x beam expander (GBE05-A, Thorlabs, Newton, NJ) into an inverted microscope (Eclipse Ti2-A, Nikon, Tokyo, Japan). The beam was directed through a 532 nm dichroic beam splitter and light from the camera. The positioning of the beam was managed using a motorized microscope stage (H117P1NN, Prior Scientific Instruments, Cambridge, U.K.).