Circularly polarised luminescence laser scanning confocal microscopy to study live cell chiral molecular interactions.

ABSTRACT: The molecular machinery of life is founded on chiral building blocks, but no experimental technique is currently available to distinguish or monitor chiral systems in live cell bio-imaging studies. Luminescent chiral molecules encode a unique optical fingerprint within emitted circularly polarized light (CPL) carrying information about the molecular environment, conformation, and binding state. Here, we present a CPL Laser Scanning Confocal Microscope (CPL-LSCM) capable of simultaneous chiroptical contrast based live-cell imaging of endogenous and engineered CPL-active cellular probes. Further, we demonstrate that CPL-active probes can be activated using two-photon excitation, with complete CPL spectrum recovery. The combination of these two milestone results empowers the multidisciplinary

SUBMITTER: Stachelek P 

PROVIDER: S-EPMC8795401 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature