Lignin Derivative as Visible‐Light Photo‐Initiating System for the Development of Biocide Materials under Light Irradiation
The design of a new visible-light methacrylated-based kraft lignin photosensitizer (MAcL) of iodonium salt (Iod) for the free-radical polymerization (FRP) of polyethylene glycol dimethacrylate (PEGDMA) under LEDs@405, 455, 470, 505, and 530 nm is reported. As demonstrated by laser flash photolysis (LFP) and electron paramagnetic resonance spin-trapping (EPR ST) experiments, the combination of MAcL with an electron acceptor (Iod) and trimethylolpropane tris(3-mercaptopropionate) (TT) used as a crosslinker, leads to the formation of highly efficient initiating radicals, i.e., thyil and carbon-centred radicals, promoting thus the FRP of PEGDMA. The final methacrylate conversions of PEGDMA are very high and range from 80 to 95% under LED@530 nm and LED@405 nm, respectively. For the first time, MAcL is also used as a biocide agent as it produces singlet oxygen when exposed to visible light. The resulting photoinduced bio-based materials incorporating MAcL demonstrate tremendous antibacterial properties against Staphylococcus aureus (S. aureus), inducing 100% bacterial death.
Authors
- Samir Abbad Andaloussi (ORCID: https://orcid.org/0000-0003-2806-6477)
- Andrea Cosola (ORCID: https://orcid.org/0000-0001-6825-1058)
- Christine Elian (ORCID: https://orcid.org/0000-0001-9812-9010)
- Régis Moilleron (ORCID: https://orcid.org/0000-0001-8876-7123)
- Davy‐Louis Versace (ORCID: https://orcid.org/0000-0002-4272-5021)
- Minh‐Huong Ha‐Thi (ORCID: https://orcid.org/0000-0003-3276-1843)
- Sonia Lajnef
- Annalisa Chiappone (ORCID: https://orcid.org/0000-0003-4651-1140)
- Fabienne Peyrot (ORCID: https://orcid.org/0000-0002-2481-0564)
- Fares Mouhoubi
Institutions
- Centre National de la Recherche Scientifique (FR)
- University of Cagliari (IT)
- Politecnico di Torino (IT)
- Université Paris-Est Créteil (FR)
- Université Paris Cité (FR)
- Paris-Est Sup (FR)
- Sorbonne Université (FR)
- Académie de Paris (FR)
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques (FR)
- Institut des Sciences Moléculaires d'Orsay (FR)
- Laboratoire Eau, Environnement et Systèmes Urbains (FR)
- Institut de Chimie et des Matériaux Paris-Est (FR)
Publication Details
- Journal
- Macromolecular Rapid Communications
- Published
- 2024-12-20
- DOI
- https://doi.org/10.1002/marc.202400877
- Citations
- 1
- Primary Topic
- Oxidative Organic Chemistry Reactions
- Type
- article
- Field-Weighted Citation Impact
- 0.25
Funders
- Agence Nationale de la Recherche
- Université Paris-Est Créteil Val-de-Marne