Department of Biology, Faculty of Science, Mersin University, 33343, Mersin, Turkey.
Department of Chemistry and Chemical Processing Technologies, Technical Science Vocational School, Mersin University, 33343, Mersin, Turkey.
Curr Microbiol. 2023 Apr 12;80(5):181. doi: 10.1007/s00284-023-03286-0.
In this paper, we synthesized graphene quantum dots magnesium hydroxide nanocomposites (GQDs/Mg(OH)). The synthesized nanocomposites were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Malvern Zetasizer. The antimicrobial and antioxidant properties of the obtained GQDs/Mg(OH) nanocomposites were investigated. GQDs/Mg(OH) nanocomposites have MIC values of 15.625 μg/mL against fungi (C. metapsilosis and C. parapsilosis) and 62.5 μg/mL against Gram (+) (S. pneumonia and E. faecalis) and Gram (-) (E. coli). The synthesized GQDs/Mg(OH) nanocomposites showed moderate antioxidant activity. The results showed that at 100-µg/mL GQDs/Mg(OH) nanocomposite concentration, the HO scavenging activity was 62.18%.
在本文中，我们合成了石墨烯量子点氢氧化镁纳米复合材料（GQDs/Mg(OH)）。通过紫外-可见光谱、X 射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X 射线光电子能谱（XPS）和 Malvern Zetasizer 对合成的纳米复合材料进行了表征。研究了所得 GQDs/Mg(OH)纳米复合材料的抗菌和抗氧化性能。GQDs/Mg(OH)纳米复合材料对真菌（C. metapsilosis 和 C. parapsilosis）的 MIC 值为 15.625 μg/mL，对革兰氏阳性菌（S. pneumonia 和 E. faecalis）和革兰氏阴性菌（E. coli）的 MIC 值为 62.5 μg/mL。合成的 GQDs/Mg(OH)纳米复合材料表现出中等的抗氧化活性。结果表明，在 100-μg/mL GQDs/Mg(OH)纳米复合材料浓度下，HO 清除活性为 62.18%。
