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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Doped Plasmonic Zinc Oxide Nanoparticles with Near-Infrared Absorption for Antitumor Activity

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Author(s):
Rissi, Nathalia Cristina [1] ; Comparetti, Edson J. [1] ; Estevao, Bianca Martins [1] ; Mastelaro, Valmor Roberto [2] ; Zucolotto, Valtencir [1, 3]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Inst Phys, Nanomed & Nanotoxicol Grp, BR-13566590 Sao Carlos - Brazil
[2] Univ Sao Paulo, Sao Carlos Inst Phys, Grp Nanomat & Adv Ceram, BR-13563120 Sao Carlos - Brazil
[3] Univ Sao Paulo, Inst Adv Studies, BR-13566590 Sao Carlos - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ACS APPLIED NANO MATERIALS; v. 4, n. 9, p. 9779-9789, SEP 24 2021.
Web of Science Citations: 0
Abstract

Plasmonic nanoparticles (NPs) have been extensively investigated as active materials for application in the optoelectronics, photocatalysis, and electrochemistry fields. In particular, doped metal oxides have attracted significant interest because of their optical and electrical properties. In this study, we investigated the influence of aluminum, gallium, and indium on the doping process of zinc oxide (ZnO) NPs. Physicochemical characterization revealed that, upon doping, ZnO NPs exhibited enhanced optoelectronic properties, including absorption in the near-infrared region. Lattice defects, such as vacancies and interstitials in the ZnO NPs crystal lattice, were also introduced by doping, changing the optical properties, and generating emission in the green-yellow, blue-violet, and orange-red band regions. We also investigated the ability of the ZnO NPs to induce cell death in human tumor cell lines and in a healthy cell line in vitro. (AU)

FAPESP's process: 18/12670-4 - Synthesis of lipid nanocarriers for modulation of tumor and immunocompetent cells
Grantee:Edson José Comparetti
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 17/22056-9 - Nanosystems containing proton "sponge"/gold nanoparticles for tumor hypoxia conditions
Grantee:Bianca Martins Estevão
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 20/00124-5 - Functionalization of nanomaterials for cancer therapy
Grantee:Valtencir Zucolotto
Support Opportunities: Regular Research Grants