Synthesis of chalcogenide ternary and quaternary nanotubes through directed compositional alterations of bacterial As-S nanotubes

Abstract

Chalcogenide ternary (i.e. As-S-Se and As-Cd-S) and quaternary (i.e. As-Cd-S-Se) composite nanotubes were synthesized using biotic As-S nanotubes as template structures through bacterial Se(IV) reduction by Shewanella sp. HN-41 and/or abiotic cation exchange of As-S with Cd under ambient conditions.