Effectiveness of Snail Slime in the Green Synthesis of Silver Nanoparticles.

Autor:	Di Filippo MF; Department of Chemistry 'G. Ciamician', University of Bologna, Via Selmi 2, 40126 Bologna, Italy., Di Matteo V; Department of Industrial Chemistry 'Toso Montanari', University of Bologna, Via Risorgimento 4, 40136 Bologna, Italy., Dolci LS; Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy., Albertini B; Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy., Ballarin B; Department of Industrial Chemistry 'Toso Montanari', University of Bologna, Via Risorgimento 4, 40136 Bologna, Italy.; Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy.; Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy., Cassani MC; Department of Industrial Chemistry 'Toso Montanari', University of Bologna, Via Risorgimento 4, 40136 Bologna, Italy., Passerini N; Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.; Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST- ICIR) Alma Mater Studiorum-University of Bologna, 40064 Ozzano dell'Emilia, Italy., Gentilomi GA; Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy., Bonvicini F; Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy., Panzavolta S; Department of Chemistry 'G. Ciamician', University of Bologna, Via Selmi 2, 40126 Bologna, Italy.; Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST- ICIR) Alma Mater Studiorum-University of Bologna, 40064 Ozzano dell'Emilia, Italy.
Jazyk:	angličtina
Zdroj:	Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2022 Oct 01; Vol. 12 (19). Date of Electronic Publication: 2022 Oct 01.
DOI:	10.3390/nano12193447
Abstrakt:	The development of green, low cost and sustainable synthetic routes to produce metal nanoparticles is of outmost importance, as these materials fulfill large scale applications in a number of different areas. Herein, snail slime extracted from Helix Aspersa snails was successfully employed both as bio-reducing agent of silver nitrate and as bio-stabilizer of the obtained nanoparticles. Several trials were carried out by varying temperature, the volume of snail slime and the silver nitrate concentration to find the best biogenic pathway to produce silver nanoparticles. The best results were obtained when the synthesis was performed at room temperature and neutral pH. UV-Visible Spectroscopy, SEM-TEM and FTIR were used for a detailed characterization of the nanoparticles. The obtained nanoparticles are spherical, with mean diameters measured from TEM images ranging from 15 to 30 nm and stable over time. The role of proteins and glycoproteins in the biogenic production of silver nanoparticles was elucidated. Infrared spectra clearly showed the presence of proteins all around the silver core. The macromolecular shell is also responsible of the effectiveness of the synthesized AgNPs to inhibit Gram positive and Gram negative bacterial growth.
Databáze:	MEDLINE
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