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Chiechio RM, Battaglia R, Caponnetto A, Butera E, Franzò G, Reitano R, Purrello M, Ragusa M, Barbagallo D, Barbagallo C, Di Pietro C, Marchi V, Lo Faro MJ, Contino A, Maccarrone G, Musumeci P. Er:Y2O3 and Nd:Y2O3 Nanoparticles: Synthesis, Pegylation, Characterization and Study of Their Luminescence Properties. CHEMOSENSORS 2022; 11:20. [DOI: 10.3390/chemosensors11010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Lanthanide-doped yttrium oxide nanoparticles can display selective upconversion properties, rendering them invaluable in the field of nanomedicine for both sensing and diagnostics. Different syntheses of Er:Y2O3 and Nd:Y2O3 nanoparticles (NPs) were studied and optimized to obtain small particles of regular shape and good crystallinity. The morphological and compositional characterizations of the nanoparticles were obtained with different techniques and showed that both Er:Y2O3 and Nd:Y2O3 NPs were well dispersed, with dimensions of the order of a few tens of nanometers. The photoluminescence and cathodoluminescence measurements showed that both Er:Y2O3 and Nd:Y2O3 NPs had good emission as well as upconversion. The nanophosphors were functionalized by a pegylation procedure to suppress unwanted reactions of the NPs with other biological components, making the NP systems biocompatible and the NPs soluble in water and well dispersed. The pegylated core/shell nanoparticles showed the same morphological and optical characteristics as the core, promoting their strategic role as photoactive material for theragnostics and biosensing.
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Contino A, Maccarrone G, Spitaleri L, Torrisi L, Nicotra G, Gulino A. One Pot Synthesis of Au_ZnO Core‐Shell Nanoparticles Using a Zn Complex Acting as ZnO Precursor, Capping and Reducing Agent During the Formation of Au NPs. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Annalinda Contino
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 95125 Catania Italy
| | - Giuseppe Maccarrone
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 95125 Catania Italy
| | - Luca Spitaleri
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 95125 Catania Italy
| | - Lucia Torrisi
- STMicroelectronics Stradale Primosole 50 95121 Catania Italy
| | | | - Antonino Gulino
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 95125 Catania Italy
- INSTM UdR of Catania Viale Andrea Doria 6 95125 Catania Italy
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