Sheydaei Milad, Edraki Milad, Radeghi Mehrjou Seyyed Mehdi
Faculty of Polymer Engineering, Sahand University of Technology, Tabriz P.O. Box 51335-1996, Iran.
Polymer Department, Technical Faculty, South Tehran Branch, Islamic Azad University, Tehran P.O. Box 19585-466, Iran.
Gels. 2023 Jun 14;9(6):490. doi: 10.3390/gels9060490.
In this study, (CT) was incorporated into the structure of sodium montmorillonite (Na-MMT), then these new nanoparticles (CT-MMT) were added to sol-gel-based hybrid silanol coatings (SGC). The results of the CT-MMT investigation using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM) confirmed the presence of CT in the structure. The results of polarization and electrochemical impedance spectroscopy (EIS) tests showed that the presence of CT-MMT in the matrix improves corrosion resistance. The EIS results showed that the coating resistance (R) of the sample containing 3 wt.% CT-MMT after immersion was 687 Ω·cm, while this value was 218 Ω·cm for pure coating. CT and MMT compounds improve corrosion resistance by blocking anodic and cathodic regions, respectively. Additionally, the presence of CT in the structure created antimicrobial properties. CT contains phenolic compounds that have the ability to suppress by membrane perturbation, reduction of host ligands adhesion, and neutralizing bacterial toxins. Therefore, CT-MMT showed inhibitory effects and killing of (gram-positive bacteria) and (gram-negative bacteria), and also improved corrosion resistance.
在本研究中，将（此处原文未提及具体物质，推测可能是某种物质名称为CT，建议补充完整信息以便准确翻译）掺入蒙脱石钠（Na-MMT）结构中，然后将这些新型纳米颗粒（CT-MMT）添加到基于溶胶-凝胶的杂化硅烷醇涂层（SGC）中。使用傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对CT-MMT进行研究的结果证实了CT存在于该结构中。极化和电化学阻抗谱（EIS）测试结果表明，基体中CT-MMT的存在提高了耐腐蚀性。EIS结果表明，浸泡后含有3 wt.% CT-MMT的样品的涂层电阻（R）为687 Ω·cm，而纯涂层的该值为218 Ω·cm。CT和MMT化合物分别通过阻断阳极和阴极区域来提高耐腐蚀性。此外，结构中CT的存在产生了抗菌性能。CT含有酚类化合物，这些化合物能够通过膜扰动、减少宿主配体粘附和中和细菌毒素来发挥抑制作用。因此，CT-MMT对（革兰氏阳性菌）和（革兰氏阴性菌）显示出抑制作用和杀灭效果，并且还提高了耐腐蚀性。
