Dynamics of Solvation
and Rotational Relaxation of Coumarin 480 in Pure Aqueous-AOT Reverse
Micelle and Reverse Micelle Containing Different-Sized Silver Nanoparticles
Inside Its Core: A Comparative Study
- Publication date
- Publisher
Abstract
In this work, we have synthesized different-sized silver
nanoparticles in an aqueous-AOT reverse micellar system under the
same condition by choosing different reduction processes. We chose
two different reducing agents, glucose (mild) and sodium borohydride
(strong). In the glucose reduction process, we obtained smaller size
nanoparticles in comparison to the nanoparticles obtained in the borohydride
reduction process under the same condition. Solvation dynamics study
showed that reverse micellar aggregated structures were present after
the nanoparticles' formation in a perturbed state. Nanoparticles inside
the reverse micellar core were responsible for this perturbation.
Larger size nanoparticles were triggering larger perturbation than
the smaller size nanoparticles. These changes in perturbation were
also reflected clearly in solvation dynamics and rotational relaxation
measurements