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APRIMORAMENTO ÓPTICO DE PONTOS QUÂNTICOS DE SULFETO DE PRATA E ÍNDIO VISANDO POTENCIAIS APLICAÇÕES EM CIÊNCIAS DA VIDA

Doi: 10.47094/XXXSBM.2025/8

PALAVRAS CHAVE: Células. Nanossondas. Fluorescência.

KEYWORDS: Cells. Nanoprobes. Fluorescence.

ABSTRACT:
Introduction: Quantum dots (QDs) are semiconductor nanocrystals that exhibit fluorescence. These nanoparticles (NPs) are known for their unique optical and physicochemical characteristics, such as size-tunable emission and an active surface for conjugation with (bio)molecules. These properties make these nanocrystals versatile tools for life sciences studies [1,2]. The formation of the QD crystal structure may be a consequence of the periodic clustering of three different compounds, resulting in ternary QDs, such as silver indium sulfide (SI). Although SI QDs have a more biocompatible composition, their optical properties still require improvement [2,3]. One way to improve both the emission intensity and quantum yield of these QPs is by forming a passivation layer around the NP core [3,4]. Objectives: In this work, we investigate the influence of the passivation layer (or shell) on the optical properties of AIS QPs, based on published articles.

Autores

  • Adriana Fontes

  • Francisco Perazzo Tavares de Melo

  • João Victor Araújo de Lima

  • Paulo Euzébio Cabral Filho

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