This Science News Wire page contains a press release issued by an organization and is provided to you "as is" with little or no review from Science X staff.

Photodynamic studies in silica-based nanomaterials

November 27th, 2017

Studying the photobehavior of silica based materials requires advanced laser-based spectroscopy and microscopy techniques as well as computational methods. Thanks to the development of ultrafast (spectroscopy and imaging) tools, researchers can explore the intimate photobehavior of these composites.

In a Chemical Reviews article, a team of authors professor Ziółek was a part of reviews the recent theoretical and ultrafast experimental studies of the SBM photodynamics and discuss the results in comparison to those in homogeneous media.

Silica-based materials (SBMs) are widely used in catalysis, photonics, and drug delivery. Their pores and cavities act as hosts of diverse guests ranging from classical dyes to drugs and quantum dots, allowing changes in the photochemical behavior of the confined guests. The heterogeneity of the guest populations as well as the confinement provided by these hosts affect the behavior of the formed hybrid materials. As a consequence, the observed reaction dynamics becomes significantly different and complex.

Studying their photobehavior requires advanced laser-based spectroscopy and microscopy techniques as well as computational methods. Thanks to the development of ultrafast (spectroscopy and imaging) tools, we are witnessing an increasing interest of the scientific community to explore the intimate photobehavior of these composites. Here, we review the recent theoretical and ultrafast experimental studies of their photodynamics and discuss the results in comparison to those in homogeneous media. The discussion of the confined dynamics includes solvation and intra- and intermolecular proton-, electron-, and energy transfer events of the guest within the SBMs. Several examples of applications in photocatalysis, (photo)sensors, photonics, photovoltaics, and drug delivery demonstrate the vast potential of the SBMs in modern science and technology

More information:
Noemí Alarcos et al. Photochemistry and Photophysics in Silica-Based Materials: Ultrafast and Single Molecule Spectroscopy Observation, Chemical Reviews (2017). DOI: 10.1021/acs.chemrev.7b00422

Provided by Adam Mickiewicz University in Poznan

Citation: Photodynamic studies in silica-based nanomaterials (2017, November 27) retrieved 24 September 2025 from https://sciencex.com/wire-news/273228982/photodynamic-studies-in-silica-based-nanomaterials.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.