PolyWhips: Directional particle transport by gradient-directed growth and stiffening of supramolecular assemblies
L. Cera, L. Chiappisi, C. Böttcher, A. Schulz, S. Schoder, M. Gradzielski, C.A. Schalley – 2017
Growth of rigid rods occurs via supramolecular assembly of a non-conjugated pi-donor pi-acceptor monomer and is triggered by a NaCl gradient. The mechanical stiffness of this material is controlled by the local salt concentration. The continuous and well-controlled growth process is exploited to power the directional transport of submillimeter polymer particles.