Fig. 2: Iterative and dynamic alignment of multiple particles via the sequential application of single thermoviscous flow fields, with sub-micrometer accuracy and dynamic alignment via mobile destinations.

a Basic sequential iterative alignment of two particles via optically generated flow fields (see also Supplementary Video 1) and (b) analysis of temporal convergence. c Alignment of multiple micro-particles to form the “big” dipper via the iterative scanning of a single laser beam. d Guidance of a single particle along a star-shaped path via moving the destination of positioning (see also Supplementary Video 3). The particle follows the path with a precision of 288 nm (see Fig. S1). e Combining the iterative alignment of multiple particles with moving destinations to guide particles along a self-intersecting trajectory