pH‐Controlled Reversible Assembly and Disassembly of Gold Nanorods

pH-Controlled assembly and disassembly of gold nanorods in both end-to-end and side-by-side fashions are demonstrated using bifunctional molecules that contain a thiol group at one end and a different functional group at the other end (see image). The assembly and disassembly processes are reversible and can be repeated for many cycles.