Redox dye-mediated fluorescence energy transfer of carbon nanotube-based nanosensors.

ABSTRACT: Single-walled carbon nanotubes (SWCNTs) exhibit nonphotobleaching, near-infrared (NIR) fluorescence suitable for bioimaging applications. In particular, SWCNT fluorescence quenching induced by biopolymer dispersants facilitates flexible design of molecular nanosensors, yet challenges remain in analyte selectivity and lack of rational design strategies. A sought-after alternative to haphazard molecular modulation of SWCNT-based fluorescence is to couple the movement of a quencher to the SWCNT surface, enabling fluorescence energy transfer to modulate molecular recognition with high selectivity. This study presents the rational design of SWCNT-based nanosensors with fluorescence energy transfer, leveraging the unique properties of methylene blue (MB) proximity-mediated fluorescence quenching

SUBMITTER: Nishitani S 

PROVIDER: S-EPMC11962466 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature