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声化学合成的Ga@C-量子点@Ga纳米颗粒辅助神经生长。

Sonochemically-fabricated Ga@C-dots@Ga nanoparticle-aided neural growth.

作者信息

Nissan Ifat, Kumar Vijay Bhooshan, Porat Ze'ev, Makovec Darko, Shefi Orit, Gedanken Aharon

机构信息

Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel.

出版信息

J Mater Chem B. 2017 Feb 21;5(7):1371-1379. doi: 10.1039/c6tb02508k. Epub 2017 Jan 30.

Abstract

In this paper, we report the fabrication of an antibacterial material, Ga-doped C-dots on Ga nanoparticles (Ga@C-dots@Ga NPs), which is deposited on a glass substrate for neural growth. A one-step sonochemical process is applied for the simultaneous fabrication and coating of Ga@C-dots@Ga NPs using PEG 400 and molten gallium. The physical and chemical characteristics of the synthesized materials were studied using scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), fluorescence analysis, dynamic light scattering (DLS) and other techniques. SH-SY5Y cells were plated on the substrates. The effect of the Ga@C-dots@Ga NPs on the development of neurites during the initiation and elongation growth phases was studied and compared with C-dots, Ga@C-dots and Ga NPs. Our research focuses on the influence of the physical and chemical properties of composites on neurite growth. We observed that cells grown on a Ga@C-dots@Ga-coated substrate exhibit a 97% increase in the number of branches originating from the soma. We found that surface modification and particle morphology play a significant role in the neural growth.

摘要

在本文中,我们报道了一种抗菌材料的制备,即负载于玻璃基底上用于神经生长的镓纳米颗粒包覆镓掺杂碳点(Ga@C-dots@Ga NPs)。采用一步超声化学法,使用聚乙二醇400(PEG 400)和熔融镓同时制备并包覆Ga@C-dots@Ga NPs。利用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、能量色散X射线光谱(EDS)、荧光分析、动态光散射(DLS)等技术研究了合成材料的物理和化学特性。将SH-SY5Y细胞接种于基底上。研究了Ga@C-dots@Ga NPs在神经突起始和伸长生长阶段对神经突发育的影响,并与碳点、Ga@C-dots和Ga NPs进行了比较。我们的研究重点是复合材料的物理和化学性质对神经突生长的影响。我们观察到,在Ga@C-dots@Ga包覆基底上生长的细胞,其源自胞体的分支数量增加了97%。我们发现表面修饰和颗粒形态在神经生长中起着重要作用。

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