Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India.
Department of Physics, Jadavpur University, Kolkata 700032, India.
Langmuir. 2023 May 30;39(21):7469-7483. doi: 10.1021/acs.langmuir.3c00765. Epub 2023 May 16.
The importance of three synthesized metallogels of suberic acid distinctly with nickel, zinc, and cadmium acetate salts has been uncovered. For the creation of these soft materials, ,'-dimethyl formamide was utilized as a source of the trapped solvent. The synthesized metallogels display intriguing viscoelasticity, and the interpretation of experimental parameters obtained from rheological results advocates the gel behavior. Microstructural analysis combined with energy-dispersive X-ray confirms the occurrence of individual gel-developing constituents as observed in different hierarchical microstructural patterns. Significant variations in microstructural arrangements with diverse extent of supramolecular non-covalent patterns inside gel networks were perceived through field emission scanning electron microscopy, atomic force microscopy, and transmission electron microscopy analyses. Fourier transform infrared and electrospray ionization-mass spectral analyses and powder X-ray diffraction analysis of metallogel samples of different gel-establishing ingredients help to investigate the possible supramolecular interactions dictating the metallogel scaffolds. Thermogravimetric analysis of xerogel samples was collected from the synthesized metallogels to understand the thermal stability. These gel materials were characterized by their potential antibacterial efficiency. The potency of metallogels against selective Gram-positive and Gram-negative bacteria was visualized via a spectrophotometer. Human pathogens like (MTCC 109), (MTCC 733), , (MTCC 1272), (NCDO 955), and (MTCC 96) are employed in this study. Apart from the biological significance, our metallogels demonstrate as incredible diode performance of fabricated semiconducting systems, which exhibit a considerable amount of non-linearity demonstrating a non-ohmic conduction mechanism at room temperature in dark conditions. Device fabrication was achieved from these metallogels employing the sandwich model with indium tin oxide-coated glass substrates/metallogel/Al structure.
已经发现了三种合成的琥珀酸金属凝胶的重要性，它们分别与醋酸镍、醋酸锌和醋酸镉盐明显不同。为了制备这些软材料，利用二甲基甲酰胺作为被捕获溶剂的来源。所合成的金属凝胶表现出有趣的粘弹性，从流变学结果获得的实验参数的解释支持凝胶行为。微观结构分析与能量色散 X 射线相结合，证实了在不同层次的微观结构模式中观察到的单个凝胶形成组分的存在。通过场发射扫描电子显微镜、原子力显微镜和透射电子显微镜分析，观察到微观结构排列的显著变化，以及凝胶网络内部超分子非共价图案的不同程度。不同凝胶形成成分的金属凝胶样品的傅里叶变换红外和电喷雾电离-质谱分析以及粉末 X 射线衍射分析有助于研究决定金属凝胶支架的可能超分子相互作用。从合成的金属凝胶中收集了干凝胶样品的热重分析数据，以了解热稳定性。这些凝胶材料通过其潜在的抗菌效率进行了表征。通过分光光度计观察了金属凝胶对选择性革兰氏阳性和革兰氏阴性细菌的效力。本研究采用人类病原体如 （MTCC 109）、 （MTCC 733）、 （MTCC 1272）、 （NCDO 955）和 （MTCC 96）。除了生物学意义外，我们的金属凝胶还表现出制造半导体系统的令人难以置信的二极管性能，这些系统在室温下的黑暗条件下表现出相当大的非线性，表现出非欧姆传导机制。使用具有氧化铟锡涂层玻璃基底/金属凝胶/Al 结构的三明治模型从这些金属凝胶中实现了器件制造。
