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One-pot synthesis and applications of two asymmetrical benzoxanthene dyes.
- Source :
-
Dyes & Pigments . Apr2022, Vol. 200, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Two asymmetrical benzoxanthene dyes (BP-1 and BP-2) were designed and synthesized by a convenient one-step procedure from naphthaldehyde and m -aminophenol precursors. These dyes showed long-wavelength absorption, near-infrared emission (>650 nm), and large Stokes shifts (>90 nm) because of the asymmetrical introduction of the benzene ring into the xanthene structure. BP-1 exhibited high fluorescence quantum yield in organic solvents, whereas BP-2 showed very weak fluorescence due to the photoinduced electron transfer of 9-substituted groups. Cell experiments indicated that BP-1 with crescent-shape structure showed lower cytotoxicity and higher photostability than BP-2 and could rapidly stain RNA in nucleoli at low concentration. [Display omitted] • Two asymmetrical benzoxanthene dyes were synthesized by a convenient one-step procedure. • The dyes showed long-wavelength absorption, near-infrared emission and large Stokes shifts. • BP-1 could stained RNA in nucleoli rapidly with low cytotoxicity and good photostability. • BP-2 showed a very weak fluorescence and cytotoxicity due to 9-substituted groups. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FLUORESCENCE yield
*PHOTOINDUCED electron transfer
*STOKES shift
Subjects
Details
- Language :
- English
- ISSN :
- 01437208
- Volume :
- 200
- Database :
- Academic Search Index
- Journal :
- Dyes & Pigments
- Publication Type :
- Academic Journal
- Accession number :
- 155490931
- Full Text :
- https://doi.org/10.1016/j.dyepig.2022.110152