Research & Publications

Plasmonic photochemistry

Metallic nanoparticles act as nanoscale antennas that amplify and concentrate light in their vicinity. Our research group specializes in harnessing these unique optical properties to enhance and control photochemical processes. To achieve this, we engineer innovative metallic nanoparticle hybrid systems and investigate how their structure, composition, and plasmonic behavior influence light-driven reactivity. We then apply these nanomaterials toward photochemical and antimicrobial applications.

Singlet Oxygen

Singlet oxygen is an excited state of molecular oxygen generated through photosensitization. Due to its short lifetime and highly reactive nature, singlet oxygen acts locally at the site of production, making it an effective tool for targeted antimicrobial applications against pathogens ranging from viruses to bacteria. Our group is interested in harnessing singlet oxygen to address antimicrobial resistance through the development and optimization of new photosensitizers, as well as strategies to enhance singlet oxygen generation and efficacy.

Excited-state modulation

Our research group is interested in understanding and controlling excited-state pathways through unconventional approaches to triplet-state access. Using polymer-based systems, we investigate how polymer composition, thickness, and the incorporation of plasticizers or antiplasticizers influence excited-state behavior and relaxation processes. By establishing fundamental structure–property relationships, our goal is to develop design principles that enable the rational tuning of excited-state dynamics, reducing reliance on trial-and-error approaches in photochemical material design.

publications

Using Photochemistry to Understand and Control the Production of Reactive Oxygen Species in Bio

J. Photochem. Photobiol. A: Chemistry, 2015, 306, 1. (Cover Page) Reactive oxygen species (ROS) originating from the metabolism of molecular oxygen are a double-edge sword. Their involvement in various diseases is well documented, while they also serve essential signaling functions. In order to shed light on their biochemical role, chemical tools have been designed for ROS detection and production. This featured article describes and illustrates different photochemical proces

Unveiling the Triplet State of a 4-Amino-7-Nitrobenzofurazan Derivative in Cyclohexane

Photochem. Photobiol. 2015, 91, 272. The nitrobenzofurazan (NBD) moiety has gained tremendous popularity over the last decades due to its fluorogenic nature. Indeed, upon interaction with aliphatic amines, it generates a stable fluorescent adduct, which has been used for protein and lipid labeling. In fact the 4-amino substituted NBD belongs to the broad family of intramolecular charge transfer molecules, with the amino group acting as an electron donor upon photoexcitation,

Forcing Aggregation of Cyanine Dyes with Salts: A Fine Line between Dimers and Higher Ordered A

Langmuir, 2014, 30, 9654. It is uncommon to read about cyanine dyes in the literature and not have their aggregation discussed. They are of high interest considering their propensity to undergo self-organization in aqueous solution, leading to interesting photophysical properties resulting from the formation of their dimers and higher ordered aggregates. Currently, the study of their aggregation is in high demand due to their diverse application range including dye-sensitized

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