Abstract

The influence of triethanolamine (TEA) on the aqueous β-CD/pyrene fluorescence is examined. Collisional quenching of pyrene by TEA is indicated by Stern-Volmer plots. However, a decrease in the quenching is observed in the presence of β-cyclodextrin, which indicates an effective protection of the included pyrene molecules against quenching from TEA. A decrease in the apparent formation constant of the β-CD/pyrene complex also occurs in the presence of TEA. This phenomenon is attributed to a combination of an increased bulk solvent hydrophobicity and a competitive equilibrium between pyrene and TEA for the β-CD cavity. The present study indicates that TEA is not co-included in the β-CD/pyrene complex.

Flame temperature measurements using the anomalous fluorescence of pyrene

Diane L. Peterson, Fred E. Lytle, and Normand M. Laurendeau
Appl. Opt. 27(13) 2768-2775 (1988)

Laser-induced fluorescence of uranyl complexes in aqueous solutions: the role of diffusion-controlled excited states annihilation

Gleb Budylin, Evgeny Shirshin, Victor Fadeev, Vladimir Petrov, and Stepan Kalmykov
Opt. Express 21(18) 20517-20528 (2013)

Properties of aqueous methanesulfonic acid: complex index of refraction and surface tension

Cathrine E. Lund Myhre, Barbara D’Anna, Flemming M. Nicolaisen, and Claus J. Nielsen
Appl. Opt. 43(12) 2500-2509 (2004)

Enhancement of the fluorescence property of carbon quantum dots based on laser ablated gold nanoparticles to evaluate pyrene

Amir Reza Sadrolhosseini, Ganesan Krishnan, Suhaidi Safie, Mahnoush Beygisangchin, Suraya Abdul Rashid, and Sulaiman Wadi Harun
Opt. Mater. Express 10(9) 2227-2241 (2020)

Fluorescence quenching by polystyrene microspheres in UV-visible and NIR tissue-simulating phantoms

Karthik Vishwanath, Wei Zhong, Melanie Close, and Mary-Ann Mycek
Opt. Express 14(17) 7776-7788 (2006)