Synthesis and Characterization of Lignin-Silver Nanoparticles
Dominik Maršík,
Petter Paulsen Thoresen,
Olga Maťátková,
Jan Masák,
Pavel Sialini,
Ulrika Rova,
Vasiliki Tsikourkitoudi,
Paul Christakopoulos,
Leonidas Matsakas,
Irena Jarošová Kolouchová
Affiliations
Dominik Maršík
Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic
Petter Paulsen Thoresen
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden
Olga Maťátková
Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic
Jan Masák
Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic
Pavel Sialini
Central Laboratories, University of Chemistry and Technology, 166 28 Prague, Czech Republic
Ulrika Rova
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden
Vasiliki Tsikourkitoudi
Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
Paul Christakopoulos
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden
Leonidas Matsakas
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden
Irena Jarošová Kolouchová
Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic
Metal nanoparticle synthesis via environmentally friendly methods is gaining interest for their potential advantages over conventional physico-chemical approaches. Herein, we propose a robust green synthesis route for lignin-modified silver nanoparticles, utilizing the recovery of lignin as a renewable raw material and exploring its application in valuable areas. Through a systematic approach combining UV-Vis spectroscopy with AAS and DLS, we identified repeatable and scalable reaction conditions in an aqueous solution at pH 11 for homogeneous silver nanoparticles with high uniformity. The TEM median sizes ranged from 12 to 15 nm with circularity between 0.985 and 0.993. The silver nanoparticles yield exceeded 0.010 mol L−1, comparable with traditional physico-chemical methods, with a minimal loss of silver precursor ranging between 0.5 and 3.9%. Characterization by XRD and XPS revealed the presence of Ag-O bonding involving lignin functional groups on the pure face-centered cubic structure of metallic silver. Moreover, the lignin-modified silver nanoparticles generated a localized thermal effect upon near-infrared laser irradiation (808 nm), potentially allowing for targeted applications in the biomedical field. Our study showcases the potential of lignin as a renewable reducing and capping agent for silver nanoparticle synthesis, addressing some shortcomings of green synthesis approaches and contributing to the development of suitable nanomaterials.
