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使用、或在磁铁矿纳米颗粒表面直接附着多酚。

Direct Polyphenol Attachment on the Surfaces of Magnetite Nanoparticles, Using , , or .

作者信息

Matías-Reyes Ana E, Alvarado-Noguez Margarita L, Pérez-González Mario, Carbajal-Tinoco Mauricio D, Estrada-Muñiz Elizabeth, Fuentes-García Jesús A, Vega-Loyo Libia, Tomás Sergio A, Goya Gerardo F, Santoyo-Salazar Jaime

机构信息

Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico.

Área Académica de Matemáticas y Física, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, UAEH, Mineral de la Reforma 42184, Mexico.

出版信息

Nanomaterials (Basel). 2023 Aug 30;13(17):2450. doi: 10.3390/nano13172450.

DOI:10.3390/nano13172450
PMID:37686958
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10490419/
Abstract

This study presents an alternative approach to directly synthesizing magnetite nanoparticles (MNPs) in the presence of , , and derived from natural sources (grapes, blueberries, and pomegranates, respectively). A modified co-precipitation method that combines phytochemical techniques was developed to produce semispherical MNPs that range in size from 7.7 to 8.8 nm and are coated with a ~1.5 nm thick layer of polyphenols. The observed structure, composition, and surface properties of the MNPs@polyphenols demonstrated the dual functionality of the phenolic groups as both reducing agents and capping molecules that are bonding with Fe ions on the surfaces of the MNPs via -OH groups. Magnetic force microscopy images revealed the uniaxial orientation of single magnetic domains (SMDs) associated with the inverse spinel structure of the magnetite (FeO). The samples' inductive heating (H = 28.9 kA/m, f = 764 kHz), measured via the specific loss power (SLP) of the samples, yielded values of up to 187.2 W/g and showed the influence of the average particle size. A cell viability assessment was conducted via the MTT and NRu tests to estimate the metabolic and lysosomal activities of the MNPs@polyphenols in K562 (chronic myelogenous leukemia, ATCC) cells.

摘要

本研究提出了一种在分别源自天然来源（葡萄、蓝莓和石榴）的 、 和 存在的情况下直接合成磁铁矿纳米颗粒（MNP）的替代方法。开发了一种结合植物化学技术的改良共沉淀法，以制备尺寸范围为7.7至8.8 nm的半球形MNP，其表面包覆有一层约1.5 nm厚的多酚层。观察到的MNP@多酚的结构、组成和表面性质证明了酚基团作为还原剂和封端分子的双重功能，它们通过 -OH基团与MNP表面的Fe离子结合。磁力显微镜图像揭示了与磁铁矿（FeO）的反尖晶石结构相关的单磁畴（SMD）的单轴取向。通过样品的比损耗功率（SLP）测量的样品感应加热（H = 28.9 kA/m，f = 764 kHz）产生了高达187.2 W/g的值，并显示了平均粒径的影响。通过MTT和NRu测试进行细胞活力评估，以估计MNP@多酚在K562（慢性粒细胞白血病，ATCC）细胞中的代谢和溶酶体活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/df9f90bdffe5/nanomaterials-13-02450-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/79389ad27f4e/nanomaterials-13-02450-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/56f059eb37aa/nanomaterials-13-02450-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/4224f109be9b/nanomaterials-13-02450-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/e907dd23e3c8/nanomaterials-13-02450-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/83dbde58362b/nanomaterials-13-02450-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/87cb3d4402e6/nanomaterials-13-02450-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/db686d281b10/nanomaterials-13-02450-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/f0cb93aa27e6/nanomaterials-13-02450-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/22c3723d6272/nanomaterials-13-02450-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/df9f90bdffe5/nanomaterials-13-02450-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/79389ad27f4e/nanomaterials-13-02450-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/56f059eb37aa/nanomaterials-13-02450-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/4224f109be9b/nanomaterials-13-02450-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/e907dd23e3c8/nanomaterials-13-02450-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/83dbde58362b/nanomaterials-13-02450-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/87cb3d4402e6/nanomaterials-13-02450-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/db686d281b10/nanomaterials-13-02450-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/f0cb93aa27e6/nanomaterials-13-02450-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/22c3723d6272/nanomaterials-13-02450-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/878a/10490419/df9f90bdffe5/nanomaterials-13-02450-g009.jpg

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