Chiral conducting polymer nanomaterials: synthesis and applications in enantioselective separation and sensing
Chiral conducting polymer (CCP) nanomaterials have been the subject of considerable interest because of their unique electrical and chiroptical properties, as well as promising applications. This review mainly summaries advances in the synthesis and applications of CCP nanomaterials in the past two decades. According to the origin of chirality, the fabrication of CCP nanomaterials can be distinguished into chiral induction and achiral preparation strategies. Under the induction of chiral factors (chiral substituent, chiral doping acid or chiral template), the chirality of conducting polymer (CP) nanomaterials is generated by the chirality transfer from chiral factors to CP nanomaterials. In the achiral preparation systems, the asymmetrical assembly of CPs results in the supramolecular chirality of CP nanomaterials. The applications of CCP nanomaterials in enantioselective separation and sensing are then reviewed. Finally, prospects and challenges for constructing advanced CCP nanomaterials are discussed.