Spectroscopic Study of a Photoactive Antibacterial Agent: 2,3-Distyrylindole.

ABSTRACT: Optical properties and fluorescence decay dynamics of a photoactive indole based antibacterial chromophore system, 2,3-distyrylindole (23DSI), were investigated using various spectroscopic characterization techniques. Experimental studies were done by utilizing steady-state UV-vis spectroscopy, steady-state fluorescence spectroscopy, time-resolved fluorescence upconversion spectroscopy, and time-correlated single-photon counting spectroscopy. Our studies show that the 23DSI molecule has a multiphoton absorption property as indicated by two- and three-photon absorption in the both the solution and the solid phases. The ultrafast time-resolved fluorescence upconversion studies show that this molecule undergoes a fast decay process with an average time constant of 34 ps, a single exponential

SUBMITTER: Rajapaksha RD 

PROVIDER: S-EPMC6637969 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature