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Miola M, Multari C, Kostevšek N, Gerbaldo R, Laviano F, Verné E. Tannic-acid-mediated synthesis and characterization of magnetite-gold nanoplatforms for photothermal therapy. Nanomedicine (Lond) 2023; 18:1331-1342. [PMID: 37800456 DOI: 10.2217/nnm-2023-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
Aim: The design of new hybrid nanoplatforms (HNPs) through the innovative and eco-friendly use of tannic acid (TA) for the synthesis and stabilization of the nanoplatforms. Materials & methods: The size, morphology, composition and magnetic and plasmonic properties of HNPs were investigated together with their ability to generate heat under laser irradiation and the hemotoxicity to explore their potential use for biomedical applications. Results & conclusion: The use of TA allowed the synthesis of the HNPs by adopting a simple and green method. The HNPs preserved the peculiar properties of both magnetic and plasmonic nanoparticles and did not show any hemotoxic effect.
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Affiliation(s)
- Marta Miola
- Department of Applied Science & Technology, Politecnico di Torino, Torino, 10129, Italy
| | - Cristina Multari
- Department of Applied Science & Technology, Politecnico di Torino, Torino, 10129, Italy
| | - Nina Kostevšek
- Department for Nanostructured Materials, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Roberto Gerbaldo
- Department of Applied Science & Technology, Politecnico di Torino, Torino, 10129, Italy
| | - Francesco Laviano
- Department of Applied Science & Technology, Politecnico di Torino, Torino, 10129, Italy
| | - Enrica Verné
- Department of Applied Science & Technology, Politecnico di Torino, Torino, 10129, Italy
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Miola M, Multari C, Vernè E. Iron Oxide-Au Magneto-Plasmonic Heterostructures: Advances in Their Eco-Friendly Synthesis. Materials (Basel) 2022; 15:7036. [PMID: 36234377 PMCID: PMC9573543 DOI: 10.3390/ma15197036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
In recent years, nanotechnologies have attracted considerable interest, especially in the biomedical field. Among the most investigated particles, magnetic based on iron oxides and Au nanoparticles gained huge interest for their magnetic and plasmonic properties, respectively. These nanoparticles are usually produced starting from processes and reagents that can be the cause of potential human health and environmental concerns. For this reason, there is a need to develop simple, green, low-cost, and non-toxic synthesis methods and reagents. This review aims at providing an overview of the most recently developed processes to produce iron oxide magnetic nanoparticles, Au nanoparticles, and their magneto-plasmonic heterostructures using eco-friendly approaches, focusing the attention on the microorganisms and plant-assisted syntheses and showing the first results of the development of magneto-plasmonic heterostructures.
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Multari C, Miola M, Laviano F, Gerbaldo R, Pezzotti G, Debellis D, Verné E. Magnetoplasmonic nanoparticles for photothermal therapy. Nanotechnology 2019; 30:255705. [PMID: 30790778 DOI: 10.1088/1361-6528/ab08f7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In recent decades the applications of nanotechnology in the biomedical field have attracted a lot of attention. Magnetic and gold nanoparticles (MNPs and GNPs) are now of interest as selective tools for tumour treatment, due to their unique properties and biocompatibility. In this paper, superparamagnetic iron oxide nanoparticles (MNPs) decorated with gold nanoparticles (GNPs) have been prepared by means of an innovative synthesis process using tannic acid as the reducing agent. The as-obtained nanoplatforms were characterized in terms of size, morphology, structure, composition, magnetic response and plasmonic properties. The results revealed that hybrid nanoplatforms (magnetoplasmonic nanoparticles, MPNPs) composed of a magnetic core and an external GNP decoration, acting in synergy, have been developed. Biological tests were also performed on both healthy cells and cancer cells exposed to different nanoparticle concentrations, upon laser irradiation. GNPs grafted onto the surface of MNPs revealed the ability to convert the received light into thermal energy, which was selective in its detrimental effect on cancer cells.
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Affiliation(s)
- C Multari
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
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Ricci M, Miola M, Multari C, Borroni E, Canuto RA, Congiusta N, Vernè E, Follenzi A, Muzio G. PPARs are mediators of anti-cancer properties of superparamagnetic iron oxide nanoparticles (SPIONs) functionalized with conjugated linoleic acid. Chem Biol Interact 2018; 292:9-14. [PMID: 29986832 DOI: 10.1016/j.cbi.2018.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/21/2018] [Accepted: 07/02/2018] [Indexed: 12/26/2022]
Abstract
Breast cancer chemotherapy can cause side effects due to nonspecific drug delivery, low solubility and fast metabolism of drugs used in conventional therapy. Moreover, the therapeutic effect of the drugs is often reduced by the strengthening of chemoresistance, which occurs via a variety of mechanisms. Different strategies have been developed to reduce multidrug resistance (MDR)-associated gene expressions including the use of surfactants and polymers. In this study superparamagnetic iron oxide nanoparticles (SPIONs) functionalized with conjugated linoleic acid (CLA) reduced the number and viability of cells in comparison with both untreated cells or cells treated with SPIONs alone. This cytostatic effect correlated with the increase of peroxisome proliferator-activated receptors γ (PPARγ). The necrotic cell death induced, as a consequence, an inflammatory process, as evidenced by the decrease of the anti-inflammatory PPARα and increase of pro-inflammatory TNFα and IL-1β. PPARs were examined because CLA is one of their natural ligands. The antitumor effect observed was accompanied by a down-regulation of p-glycoprotein (P-gp), which was the first important discovered efflux transporter belonging to MDR, and of ALDH3A1, an enzyme able to metabolize some drugs, reducing their effects. The down-regulation of P-gp correlated with the increase of cytokines. The ALDH3A1 decrease correlated with the increase of PPARγ. Based on these results, PPARs are molecular mediators of anti-cancer effect of SPIONs functionalized with CLA, being changes in these nuclear receptors correlated with induction of cytotoxicity and inflammation, and decreased ability of cancer cells in blocking anti-cancer drug effect.
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Affiliation(s)
- Marina Ricci
- Department of Clinical and Biological Sciences, University of Torino, Corso Raffaello 30, 10125, Turin, Italy.
| | - Marta Miola
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
| | - Cristina Multari
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
| | - Ester Borroni
- Department of Health Sciences, University "Amedeo Avogadro" of East Piedmont, Via Solaroli 17, 28100, Novara, Italy.
| | - Rosa Angela Canuto
- Department of Clinical and Biological Sciences, University of Torino, Corso Raffaello 30, 10125, Turin, Italy.
| | - Noemi Congiusta
- Department of Clinical and Biological Sciences, University of Torino, Corso Raffaello 30, 10125, Turin, Italy
| | - Enrica Vernè
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
| | - Antonia Follenzi
- Department of Health Sciences, University "Amedeo Avogadro" of East Piedmont, Via Solaroli 17, 28100, Novara, Italy.
| | - Giuliana Muzio
- Department of Clinical and Biological Sciences, University of Torino, Corso Raffaello 30, 10125, Turin, Italy.
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