Abstract
We propose the photopolymerization of lipoic acid (LA) as an novel approach to produce a cross-linked polymeric matrix of lipoic acid monomers (PALA) which helps to control the size of plasmonic gold nanostructures when using 3,3,6,8-tetramethyl-1-tetralone as the photo-initiator for the reduction of Au(III) to Au0. A complete characterization of the polymer is included, and the dual behaviour of LA as an in situ stabilizer and reducing agent is investigated. These findings are relevant to the understanding of the photochemical transformation of this biologically relevant compound and would benefit the increasing use of LA and PALA for the synthesis of various nanomaterials.
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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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This work was supported by the Natural Sciences and Engineering Research Council, the Canada Foundation for Innovation and the Canada Research Chairs program.
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Cely-Pinto, M., Wang, B. & Scaiano, J.C. Understanding α-lipoic acid photochemistry helps to control the synthesis of plasmonic gold nanostructures. Photochem Photobiol Sci 22, 1299–1307 (2023). https://doi.org/10.1007/s43630-023-00378-5
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DOI: https://doi.org/10.1007/s43630-023-00378-5