The recent advances in molecular design of polymethine dyes absorbing and emitting light
in the near-infrared region are reviewed. In contrast to many publications, which concern …

Small brightly fluorescent carbon nanoparticles have emerged as a new class of materials
important for sensing and imaging applications. We analyze comparatively the properties of …

In recent work to develop cyanine dyes with especially large Stokes shifts, we encountered a
“blueing” reaction, in which the heptamethine cyanine dye Cy7 (IUPAC: 1, 3, 3-trimethyl-2 …

Although it has been reported in a few instances that the spectroscopic properties of cyanine
dyes were strongly dependent on the nature of the chemical substitution of their central …

The assortment of fluorescence reporters is changing dramatically. Traditionally explored
intrinsic fluorescence of biological macromolecules and cellular pigments and of externally …

Triggering physiological responses with a light switch has become a reality with the
development of smart molecular probes such as photolabile protecting groups (PPGs), able …

The synthesis of borondifluoride complexes of curcuminoids and one-and two-photon
absorption properties of 1 and 2 are described. These compounds allow the preparation of …

The reaction of squaric acid with excess 3-methylimidazo [1, 5-a] pyridine afforded almost
exclusively the corresponding semisquaraine. The later underwent condensation with …

The electronic relaxation dynamics of the second singlet excited states of several cyanine
dyes was studied through the femtosecond fluorescence up-conversion technique. Our …

Two different approaches to increase intersystem crossing rates in polymethine-like
molecules are presented: traditional heavy-atom substitution and molecular levels …