Controllable Self-Assembling of Gold Nanorods via On and Off Supramolecular Noncovalent Interactions

摘要

5,15-Bis(4-sulfonatophenyl)porphyrin (DPPS) with a planarnconjugated system and two negative charges was found to be able to engendernthe self-assembling of CTAB-GNRs due to the electrostatic interaction betweennDPPS and CTAB together with the π−π intermolecular interaction of DPPS,nwhile its bulky supramolecular pseudo[3]rotaxane included by β-cyclodextrinnprevented such self-assembling due to the interruption of the above noncovalentninteractions.