Detecting chirality-induced spin selectivity in chromophore-linked DNA hairpins using photogenerated radical pairs.

ABSTRACT: Chirality-induced spin selectivity (CISS) results in spin polarization of electrons transmitted through chiral molecules and materials. Since CISS results in spin polarization even at room temperature, it affords the possibility of using it to develop quantum technologies that can operate under ambient conditions. We have shown previously that photo-driven hole transfer within DNA hairpins provides a facile route to generate spin-correlated radical pairs (SCRPs). To study the effect of CISS on the spin dynamics of SCRPs in DNA hairpins, we prepared a series of electron donor-chiral bridge-acceptor molecules where the chiral bridge is a B-form DNA helix consisting of 4 to 6 base pairs. Naphthalene-1,8:4,5-bis(dicarboximide) (NDI) serves as the hairpin linker chromophore and electron accepto

SUBMITTER: Latawiec EI 

PROVIDER: S-EPMC12358874 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature