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Perspectives for Ag2S NIR-II nanoparticles in biomedicine: from imaging to multifunctionality

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Abstract

Research on near-infrared (NIR) bioimaging has progressed very quickly in the past few years, as fluorescence imaging is reaching a credible implementation as a preclinical technique. The applications of NIR bioimaging in theranostics have contributed to its increasing impact. This has brought about the development of novel technologies and, simultaneously, of new contrast agents capable of acting as efficient NIR optical probes. Among these probes, Ag2S nanoparticles (NPs) have attracted increasing attention due to their temperature-sensitive NIR-II emission, which can be exploited for deep-tissue imaging and thermometry, and their heat delivery capabilities. This multifunctionality makes Ag2S NPs ideal candidates for theranostics. This review presents a critical analysis of the synthesis routes, properties and optical features of Ag2S NPs. We also discuss the latest and most remarkable achievements enabled by these NPs in preclinical imaging and theranostics, together with a critical assessment of their potential to face forthcoming challenges in biomedicine.

Graphical abstract: Perspectives for Ag2S NIR-II nanoparticles in biomedicine: from imaging to multifunctionality

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Publication details

The article was received on 07 Jul 2019, accepted on 15 Sep 2019 and first published on 16 Sep 2019


Article type: Minireview
DOI: 10.1039/C9NR05733A
Nanoscale, 2019, Advance Article

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    Perspectives for Ag2S NIR-II nanoparticles in biomedicine: from imaging to multifunctionality

    Y. Shen, J. Lifante, E. Ximendes, H. D. A. Santos, D. Ruiz, B. H. Juárez, I. Zabala Gutiérrez, V. Torres Vera, J. Rubio Retama, E. Martín Rodríguez, D. H. Ortgies, D. Jaque, A. Benayas and B. del Rosal, Nanoscale, 2019, Advance Article , DOI: 10.1039/C9NR05733A

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