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Synthesis of Photoluminescent 2D Self-Assembled Silver Thiolate Nanoclusters for Sensors and Biomolecule Support

TitleSynthesis of Photoluminescent 2D Self-Assembled Silver Thiolate Nanoclusters for Sensors and Biomolecule Support
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2023
AuthorsCaschera, D., Brugnoli B., Primitivo L., De Angelis M., Righi G., Pilloni L., Campi G., Imperatori P., Pentimalli Marzia, Masi A., Liscio A., Rea G., and Suber L.
JournalInorganic Chemistry
KeywordsBiomolecules, Chelation, Electrical characterization, Electronic sensing, Fine tuning, High anisotropy, Ligands, Long term stability, Mammals, Metallics, Nanoclusters, Optical properties, Sensing applications, silver, Size structure, Surface chemistry, Synthesis (chemical), Synthesis and characterizations, Thiolates

Silver thiolate nanoclusters (Ag NCs) show distinctive optical properties resulting from their hybrid nature, metallic and molecular, exhibiting size-, structure-, and surface-dependent photoluminescence, thus enabling the exploitation of Ag NCs for potential applications in nanobiotechnology, catalysis, and biomedicine. However, tailoring Ag NCs for specific applications requires achieving long-term stability and may involve modifying surface chemistry, fine-tuning ligand composition, or adding functional groups. In this study, we report the synthesis of novel Ag NCs using 2-ethanephenylthiolate (SR) as a ligand, highlight critical points addressing stability, and characterize their optical and structural properties. A preliminary electrical characterization revealed high anisotropy, well suited for potential use in electronics/sensing applications. We also present the synthesis and characterization of Ag NCs using 10-carboxylic 2-ol thiolate (SR’COOH) having a terminal carboxylic group for conjugation with amine-containing molecules. We present a preliminary assessment of its bioconjugation capability using bovine serum albumin as a model protein indicating its prospective application as a biomolecule support. © 2024 American Chemical Society.


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Citation KeyCaschera2023