The essence of supramolecular assembly is how to construct dynamic nanostructures,eventually how to manipulate their physical properties triggered by external forces.Toward this research direction,we have explored small rigid-flexible block molecules to create novel self-assembling systems.The resulting self-assembled nanostructures are able to recognize external triggers by changing their shapes or their macroscopic properties.Examples include porous capsules with an open/close gating motion,planar sheets with a scrolling motion,smart nanofibers with sol-gel interconversion,and hollow tubules with a pulsating motion.Here I will present our recent achievements including their potential applications.