𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fluorescence quenching of polystyrene by oxygen

✍ Scribed by Maria Nowakowska; Jan Najbar; Bolesław Waligóra

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
436 KB
Volume
12
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

ANtract--The fluorescence quenching of polystyrene by oxygen at room temperature was investigated. The diffusion coefficient of oxygen in polystyrene films was taken as 3.1 x 10 -7 cm2/sec; the energy migration coefficient of polystyrene in the excited singlet state was estimated as 6 x 10 6 cm2/sec.

📜 SIMILAR VOLUMES

Triplet state formation in the quenching
Triplet state formation in the quenching of fluorescence by molecular oxygen
✍ R. Potashnik; C.R. Goldschmidt; M. Ottolenghi 📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 229 KB

pulsed nitrogen laser is appiied for studying the quenching of aromatic hydrocarbons fluorescence by oxygen. In non-polar solvents the process induces intersystem crossing to the triplet state with a quantum yield of unity. Effects of solvent polarity suggest that the interaction between Sl and O2(

Model Systems for Fluorescence and Singl
Model Systems for Fluorescence and Singlet Oxygen Quenching by Metalloporphyrins
✍ Jason R. McCarthy; Ralph Weissleder 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 123 KB

## Abstract Next‐generation photodynamic therapy agents will minimize extraneous phototoxicity by being active only at the target site. To this end, we have developed a model system to systematically investigate the excited‐state quenching ability of a number of metalloporphyrins. Central metal ion