Biomolecule‐Based Circularly Polarized Luminescent Materials: Construction, Progress, and Applications

Abstract

Chiral materials related to circularly polarized luminescence (CPL) make up a rapidly developing new field that has broad application prospects in optoelectronic devices, selective recognition, biomedicine, and other fields. Biofunctional chiral materials are also attracting increasing attention because of their unique biocompatibility, chiral recognition, and coding. However, there has been little discussion on biomolecule‐based CPL till now. In this Review, the latest progress in CPL materials related with biomolecules are reviewed, including the chiral construction from molecular level to giant microstructure, as well as their emerging applications. In addition, we discuss the challenges and prospects of bio‐based CPL materials, hoping this work will provide new perspectives and insights for more related research.

Polymer‐Based Circularly Polarized Luminescent Materials

“…For instance, biological polymers such as DNA, proteins, and polysaccharides featuring both inherent molecular chirality and helical chirality provide rich chiral sources and elegant architectures for constructing CPL materials. [54][55][56] Moreover, synthetic polymers also have the characteristics of convenient manufacture, easy processing, high thermal stability, as well as, easy to tune architecture and performance. Particularly, synthetic helical polymers have received tremendous attention for the construction of CPL-active platform because of their chiral amplification effect.…”

From 0 toN: circularly polarized luminescence generation from achiral luminophores in fibrous morphologies

“…52 In this case, amino acid derivative gels are usually used as a chiral template to induce CPL signals through chirality transfer. 53 As shown in Fig. 3a, achiral emissive dyes (Py, 2An, 1An, and RB) are incorporated into the helical fibrous phenylalanine-derived gels of LPF/DPF, resulting in the formation of co-assembled nano-twisted fibers and remarkable CPL signal generation.…”

Remarkable 980 nm circularly polarized luminescence from dinuclear Yb(iii) helicates with aD4symmetry

“…Although numerous CPL materials based on different luminophores have been prepared in more recent years, [31][32][33][34][35][36][37][38][39][40] the reports on NIR-CPL are rare. [41][42][43] This is because the NIR luminescence is weak and more difficult to be monitored.…”