𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Molecular excitons of Pyronin B and Pyronin Y in colloidal silica suspension

✍ Scribed by Mustafa Arık; Yavuz Onganer

Book ID
104108168
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
245 KB
Volume
375
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

The electrostatic interactions of the cationic dyes Pyronin B (PyB) and Pyronin Y (PyY) with the negatively charged colloidal silica was investigated by molecular absorption and steady state fluorescence spectroscopy. Both dyes indicated changes in the absorption and emission spectra upon interaction with colloidal silica. A blue shift was observed in the absorption spectra for both dyes with increased dye concentration when the colloidal silica concentration was kept constant. These new bands observed that are higher energy than monomer bands are due to H-aggregates and they were analyzed by using exciton theory and monomer-dimer equilibrium.

📜 SIMILAR VOLUMES

Effects of gamma irradiation and pyronin
Effects of gamma irradiation and pyronin-Y treatments on meiotic recombination in tomato
✍ C. B. Singh 📂 Article 📅 1981 🏛 Springer Netherlands 🌐 English ⚖ 335 KB

The recombination frequency was measured between two linked marker loci a (anthocyaninless) and hl (hairless) in control and irradiated developing buds in Cluster I on the main stem in tomato. The buds which corresponded to early prophase I of meiosis showed significant increase in recombination fre

Flow cytometric analysis of RNA content
Flow cytometric analysis of RNA content in different cell populations using pyronin Y and methyl green
✍ Alan Pollack; David L. Prudhomme; David B. Greenstein; George L. Irvin III; Alic 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 914 KB

## Abstract Pyronin Y (PY) was used, in flow cytometric (FCM) systems, to estimate the RNA content per cell in formalin fixed EL4 leukosis tumor cells, enzyme dispersed R3327‐G rat prostatic adenocarcinoma cells, mouse spleen cells stimulated with concanavalin A, and human peripheral blood lymphocy