Ontology highlight
ABSTRACT:
SUBMITTER: Pfeifer D
PROVIDER: S-EPMC6099519 | biostudies-other | 2018 Jul
REPOSITORIES: biostudies-other
Pfeifer David D Klimant Ingo I Borisov Sergey M SM
Chemistry (Weinheim an der Bergstrasse, Germany) 20180627 42
New pH-sensitive perylene bisimide indicator dyes were synthesized and used for fabrication of optical sensors. The highly photostable dyes show absorption/emission bands in the red/near-infrared (NIR) region of the electromagnetic spectrum, high molar absorption coefficients (up to 100 000 m<sup>-1</sup> cm<sup>-1</sup> ), and fluorescence quantum yields close to unity. The absorption and emission spectra show strong bathochromic shifts upon deprotonation of the imidazole nitrogen atom, which ...[more]