نتایج جستجو برای: co sensitizer
تعداد نتایج: 335013 فیلتر نتایج به سال:
We propose a new approach for the versatile sensitization of luminescent lanthanide cations. A hydrophobic chromophore is incorporated into a micellar assembly formed by the amphiphilic lanthanide chelate. The sensitizer to lanthanide energy transfer occurs between the two moieties without covalent linkage.
Photophysical and photochemical characterization of a novel cationic silicon phthalocyanine with excellent water solubility properties is reported. The robust red-light responsive compound shows very attractive features as a sensitizer for reductive and oxidative quenching processes to trigger photocatalytic substrate conversion in aqueous solution.
The behavior of a pyridinium-substituted dimethyldihydropyrene photo-switch under aerobic conditions was investigated. During irradiation with red light (λ ≥ 630 nm), this compound plays the role of oxygen sensitizer and is quantitatively converted into an endoperoxide derivative. The photo-produced endoperoxide then thermally releases singlet oxygen to regenerate the starting compound.
Amplified fluorescence quenching methodology based on massive autocatalytic photo-unmasking of a dual function sensitizer-quencher is developed and adopted for photoassisted ultra-sensitive detection of molecular recognition events. The resulting binding assay, based on a molecular recognition-triggered photo-amplified cascade with concomitant decrease of fluorescence is validated with the biot...
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