3 research outputs found
Stevia rebaudiana Bertoni (Asteraceae) (un Ă©dulcorant naturel)
BESANCON-BU MĂ©decine pharmacie (250562102) / SudocPARIS-BIUP (751062107) / SudocSudocFranceF
Probing the Reorganization of the Nicotinic Acetylcholine Receptor during Desensitization by Time-Resolved Covalent Labeling Using [ 3
Trisâbenzo[cd]indole Cyanine Enables the NIRâphotosensitized Radical and Thiolâene Polymerizations at 940 nm
International audienceA nearâinfraredâabsorbing heptamethine (HM+) incorporating three bulky benzo[cd]indole heterocycles was designed to efficiently prevent selfâaggregation of the dye, which results in a strong enhancement of its photoinitiating reactivity as compared to a parent bisâbenzo[cd]indole heptamethine (HMCl+) used as a reference system. In this context, we highlight an efficient freeâradical NIRâpolymerization up to a 100% acrylates C=C bonds conversion even under air conditions. Such an important initiating performance was obtained by incorporating our NIRâsensitizer into a threeâcomponent system leading to its selfâregeneration. This original photoredox cycle was thoroughly investigated through the identification of each intermediary species using EPR spectroscopy