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用于优化磁性纳米颗粒在磁流体热疗中加热效率的简易声化学方法。

Simple Sonochemical Method to Optimize the Heating Efficiency of Magnetic Nanoparticles for Magnetic Fluid Hyperthermia.

作者信息

Fuentes-García Jesús Antonio, Carvalho Alavarse Alex, Moreno Maldonado Ana Carolina, Toro-Córdova Alfonso, Ibarra Manuel Ricardo, Goya Gerardo Fabián

机构信息

Instituto de Nanociencia de Aragón (INA) & Laboratory of Advanced Microscopies (LMA), Universidad de Zaragoza, 50018 Zaragoza, Spain.

Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas del Instituto Politécnico Nacional, UPIITA-IPN, Av. IPN 2580, Ticoman 07340, Mexico.

出版信息

ACS Omega. 2020 Oct 7;5(41):26357-26364. doi: 10.1021/acsomega.0c02212. eCollection 2020 Oct 20.

DOI:10.1021/acsomega.0c02212
PMID:33110963
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7581078/
Abstract

We developed a fast, single-step sonochemical strategy for the green manufacturing of magnetite (FeO) magnetic nanoparticles (MNPs), using iron sulfate (FeSO) as the sole source of iron and sodium hydroxide (Na(OH)) as the reducing agent in an aqueous medium. The designed methodology reduces the environmental impact of toxic chemical compounds and minimizes the infrastructure requirements and reaction times down to minutes. The Na(OH) concentration has been varied to optimize the final size and magnetic properties of the MNPs and to minimize the amount of corrosive byproducts of the reaction. The change in the starting FeSO concentration (from 5.4 to 43.1 mM) changed the particle sizes from (20 ± 3) to (58 ± 8) nm. These magnetite MNPs are promising for biomedical applications due to their negative surface charge, good heating properties (≈324 ± 2 W/g), and low cytotoxic effects. These results indicate the potential of this controlled, easy, and rapid ultrasonic irradiation method to prepare nanomaterials with enhanced properties and good potential for use as magnetic hyperthermia agents.

摘要

我们开发了一种快速、单步的声化学策略，用于在水介质中以硫酸铁（FeSO）作为铁的唯一来源，氢氧化钠（Na(OH)）作为还原剂，绿色制造磁铁矿（FeO）磁性纳米颗粒（MNPs）。所设计的方法减少了有毒化合物对环境的影响，并将基础设施要求和反应时间缩短至几分钟。已改变NaOH浓度以优化MNPs的最终尺寸和磁性，并使反应中腐蚀性副产物的量最小化。起始FeSO浓度（从5.4到43.1 mM）的变化使粒径从（20±3）nm变为（58±8）nm。这些磁铁矿MNPs因其负表面电荷、良好的加热性能（≈324±2 W/g）和低细胞毒性作用而在生物医学应用中具有前景。这些结果表明了这种可控、简便且快速的超声辐照方法在制备具有增强性能且有潜力用作磁热疗剂的纳米材料方面的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/0fb51edca640/ao0c02212_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/576ced0cae97/ao0c02212_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/57ac688aa8d6/ao0c02212_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/303639a31dd6/ao0c02212_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/4c9258ebd7c0/ao0c02212_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/0fb51edca640/ao0c02212_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/576ced0cae97/ao0c02212_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/57ac688aa8d6/ao0c02212_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/303639a31dd6/ao0c02212_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/4c9258ebd7c0/ao0c02212_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49b0/7581078/0fb51edca640/ao0c02212_0006.jpg

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