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载银羧甲基纤维素/功能共聚物/ODA-Mt 的 wLED 处理 NC 及其对脑癌细胞的响应。

Ag-carried CMC/functional copolymer/ODA-Mt wLED-treated NC and their responses to brain cancer cells.

机构信息

Hacettepe University, Institute of Science and Engineering, Division of Nanotechnology and Nanomedicine, Beytepe, 06800 Ankara, Turkey.

Baskent University, Department of Biomedical Engineering, 06810 Ankara, Turkey; SUNY Buffalo, Department of Electrical Engineering, Buffalo, NY 1422, USA.

出版信息

Mater Sci Eng C Mater Biol Appl. 2018 Nov 1;92:463-476. doi: 10.1016/j.msec.2018.05.032. Epub 2018 Jun 20.

Abstract

The subject of this work is synthesis and characterization of novel multifunctional nanocomposite (8/2A-NC) consisting (1) carboxymethyl cellulose (CMC) as a matrix biopolymer and poly (maleic acid-alt-acrylic acid) as a reactive synthetic partner matrix polymer; (2) octadecyl amine montmorillonite (ODA-MMT) reactive organoclay provide intercalated silicate layers structures and aqueous colloidal dispersing medium, and MMT as carriers and targeting agents for anticancer agents in drug delivery systems, respectively. ODA as a intercalated surfactant finely dispersed 8/2A NC and its compatibility with matrix polymers via the interfacial polarization (complexing) and functionalization of matrix polymers by amine (ODA) and carboxylic acids from both the CMC and copolymer; (3) silver nanoparticles (AgNPs) as in-situ generated onto matrix polymers with unique nano-size and morphology parameters was synthesized. Important material science and bioengineering aspects of these investigations included (a) novel approach in synthetic pathways; (b) effects of physical and chemical structural rearrangements; (c) effects of Light Emitting Dioda (LED)-treatment on the FT-IR spectra, XRD reflection parameters, SEM-TEM morphology and nano-size and diameter distribution of AgNPs onto matrix polymers; (d) positive effect of LED-treatment of 8/2A nanocomposite and its response to the MIAPaCa-2 and U87 human brain cancer cell lines were evaluated. Novel 8/2A-NC multifunctional drug consisting unique positive, intercalating and encapsulated core-shell morphology structures, nano-size (5.6 nm) and narrow diameter distribution (94%) of AgNPs onto matrix polymers [silver NPs (0.25%) in 8/2A NC (25%)] with highest volume of contact area compared with used cancer micro-cells show lowest cell viability as an excellent anticancer platform. 8/2A-NC is a novel multifunctional drug with intercalating and encapsulated core-shell morphology structures consisting of positively charged, non-randomly distributed AgNPs with a large contact area and low diameters (5-6 nm). The anticancer properties of (This factor is not conformed experimentally in work) this drug can be explained by the following structural factors: 8/2A-NC contains a combination of active sites from protonated hydroxyl, carboxyl and amine groups; Ag-cations and ODA-MMT with high physical and chemical surface areas. We suggest this material be further explored for anti-cancer testing.

摘要

这项工作的主题是合成和表征新型多功能纳米复合材料(8/2A-NC),该复合材料由(1)羧甲基纤维素(CMC)作为基质生物聚合物和聚(马来酸 - 丙烯酸)作为反应性合成的基质聚合物;(2)十八烷基胺蒙脱土(ODA-MMT)反应性有机粘土提供插层硅酸盐层结构和水胶体分散介质,MMT 分别作为载体制剂和靶向药物载体递药系统中的抗癌剂;(3)银纳米粒子(AgNPs)原位生成到基质聚合物上,具有独特的纳米尺寸和形态参数。这些研究的重要材料科学和生物工程方面包括(a)合成途径的新方法;(b)物理和化学结构重排的影响;(c)发光二极管(LED)处理对 FT-IR 光谱、XRD 反射参数、SEM-TEM 形态以及纳米尺寸和 AgNPs 直径分布的影响;(d)LED 处理对 8/2A 纳米复合材料的积极影响及其对 MIAPaCa-2 和 U87 人脑癌细胞系的反应。新型 8/2A-NC 多功能药物具有独特的正插层和包封核壳形态结构、纳米尺寸(5.6nm)和窄直径分布(94%),AgNPs 纳米尺寸(0.25%)在 8/2A NC(25%)上)与所用癌细胞相比,具有最大的接触面积和最小的细胞活力,显示出优异的抗癌平台。8/2A-NC 是一种新型多功能药物,具有正插层和包封核壳形态结构,由带正电荷、非随机分布的 AgNPs 组成,具有较大的接触面积和较低的直径(5-6nm)。这种药物的抗癌特性(这一因素在工作中没有实验证实)可以用以下结构因素来解释:8/2A-NC 包含质子化羟基、羧基和胺基的活性位点;Ag 阳离子和 ODA-MMT 具有高的物理和化学表面积。我们建议进一步探索这种材料用于抗癌测试。

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