Fig. 5. Time-lapse optical microscopy images illustrating the cooperative transport of three large cargoes by TiO₂-MFs under the navigation of UV light in a microchannel. The cargoes (SiO₂ microspheres, 10 µm) are marked in different colors. The white dashed circles represent the target area. The optical microscope snapshots are taken from ESI Video 8.† Scale bar: 20 µm. UV light intensity: 500 mW cm⁻². H₂O₂ concentration: 0.25 wt%.