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.
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.
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.
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。