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用于利用高频磁场捕获和破坏细菌的磁性石墨烯基薄片

Magnetic Graphene-Based Sheets for Bacteria Capture and Destruction Using a High-Frequency Magnetic Field.

作者信息

Hardiansyah Andri, Yang Ming-Chien, Liao Hung-Liang, Cheng Yu-Wei, Destyorini Fredina, Irmawati Yuyun, Liu Chi-Ming, Yung Ming-Chi, Hsu Chuan-Chih, Liu Ting-Yu

机构信息

Research Center for Physics, Indonesian Institute of Sciences, Tangerang Selatan 15314, Indonesia.

Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.

出版信息

Nanomaterials (Basel). 2020 Apr 3;10(4):674. doi: 10.3390/nano10040674.

DOI:10.3390/nano10040674
PMID:32260211
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7221870/
Abstract

Magnetic reduced graphene oxide (MRGO) sheets were prepared by embedding FeO nanoparticles on polyvinylpyrrolidone (PVP) and poly(diallyldimethylammonium chloride) (PDDA)-modified graphene oxide (GO) sheets for bacteria capture and destruction under a high-frequency magnetic field (HFMF). The characteristics of MRGO sheets were evaluated systematically by transmission electron microscopy (TEM), scanning electron microscopy (SEM), zeta potential measurement, X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and X-ray photoelectron spectroscopy (XPS). TEM observation revealed that magnetic nanoparticles (8-10 nm) were dispersed on MRGO sheets. VSM measurements confirmed the superparamagnetic characteristics of the MRGO sheets. Under HFMF exposure, the temperature of MRGO sheets increased from 25 to 42 °C. Furthermore, we investigated the capability of MRGO sheets to capture and destroy bacteria (). The results show that MRGO sheets could capture bacteria and kill them through an HFMF, showing a great potential in magnetic separation and antibacterial application.

摘要

通过将FeO纳米颗粒嵌入聚乙烯吡咯烷酮（PVP）和聚二烯丙基二甲基氯化铵（PDDA）修饰的氧化石墨烯（GO）片材上制备了磁性还原氧化石墨烯（MRGO）片材，用于在高频磁场（HFMF）下捕获和破坏细菌。通过透射电子显微镜（TEM）、扫描电子显微镜（SEM）、zeta电位测量、X射线衍射（XRD）、振动样品磁强计（VSM）和X射线光电子能谱（XPS）系统地评估了MRGO片材的特性。TEM观察表明磁性纳米颗粒（8 - 10纳米）分散在MRGO片材上。VSM测量证实了MRGO片材的超顺磁性特性。在HFMF暴露下，MRGO片材的温度从25℃升高到42℃。此外，我们研究了MRGO片材捕获和破坏细菌的能力（）。结果表明，MRGO片材可以通过HFMF捕获并杀死细菌，在磁分离和抗菌应用中显示出巨大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/fdc141a4ec18/nanomaterials-10-00674-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/2bbca3ea119e/nanomaterials-10-00674-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/7cef1194c915/nanomaterials-10-00674-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/06b687b9ffbd/nanomaterials-10-00674-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/3dcf9e8e6f1c/nanomaterials-10-00674-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/066a7a70b7ca/nanomaterials-10-00674-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/7f01381a80a9/nanomaterials-10-00674-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/fdc141a4ec18/nanomaterials-10-00674-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/2bbca3ea119e/nanomaterials-10-00674-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/7cef1194c915/nanomaterials-10-00674-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/06b687b9ffbd/nanomaterials-10-00674-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/3dcf9e8e6f1c/nanomaterials-10-00674-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/066a7a70b7ca/nanomaterials-10-00674-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/7f01381a80a9/nanomaterials-10-00674-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6e5/7221870/fdc141a4ec18/nanomaterials-10-00674-g007.jpg

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