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首页> 外文期刊>Polymers for advanced technologies >Thermally exfoliated graphene oxide reinforced stress responsive conductive nanocomposite hydrogel
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Thermally exfoliated graphene oxide reinforced stress responsive conductive nanocomposite hydrogel

机译：热剥离的石墨烯氧化物增强应力响应导电纳米复合水凝胶

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>Lightweight and flexible biosensors that can sustain mechanical deformation and can be adhered to human skin is an interesting field of study. In the current article, a systematic study on development of thermally exfoliated graphene oxide (TEGO)–reinforced poly(vinyl alcohol) (PVA)–based conductive hydrogel nanocomposites has been reported. The free‐standing hydrogels were synthesized using controlled and repetitive freeze‐thaw cycles. The samples were then studied for their mechanical as well as electrical properties. The hydrogels were characterized for their microstructural, chemical, and rheological properties to understand the observed macroscopic properties. Additionally, a study on the behavior of hydrogels immersed in phosphate‐buffered saline (PBS) was carried out to investigate their hydrolytic stability within simulated biological environment. Overall, the nanocomposite hydrogels demonstrated excellent static and dynamic mechanical performance, stability in PBS, considerable electrical conductivity, and significant electrical response to applied external stress, establishing their potential for use as flexible biosensors.
机译： >可以维持机械变形的轻质和柔性生物传感器，可以粘附在人体皮肤上是一个有趣的研究领域。在本文中，已经报道了对热剥离的石墨烯（TEGO） - 再胁迫聚（乙烯醇）（PVA）的导电水凝胶纳米复合材料进行系统研究。使用受控和重复的冻融循环合成单独的水凝胶。然后研究样品的机械以及电性能。水凝胶的特征在于它们的微观结构，化学和流变性质，以了解观察到的宏观性质。另外，对浸没在磷酸盐缓冲盐水（PBS）中浸入的水凝胶的行为的研究进行研究，以研究模拟生物环境中的水解稳定性。总的来说，纳米复合水凝胶显示出优异的静态和动态的机械性能，PBS的稳定性，相当大的导电性和显着的电气响应，以应用于应用外部应力，建立其用作柔性生物传感器的可能性。

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