Browsing by Author "Liu, Xinhua"

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    BSA-rGO nanocomposite hydrogel formed by UV polymerization and in situ reduction applied as biosensor electrode.
    (Journal of materials chemistry. B, 2013-10) Tang, Zhou; Gao, Lu; Wu, Yihua; Su, Teng; Wu, Qing; Liu, Xinhua; Li, Wenjun; Wang, Qigang
    This communication demonstrates a convenient strategy to prepare a tough BSA-rGO hydrogel electrode via photopolymerization, which is demonstrated to be a highly effective H2O2 biosensor electrode with low detection concentration and high sensing sensitivity after combining with hemin chloride.
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    Tough nanocomposite ionogel-based actuator exhibits robust performance.
    (Scientific reports, 2014-10) Liu, Xinhua; He, Bin; Wang, Zhipeng; Tang, Haifeng; Su, Teng; Wang, Qigang
    Ionogel electrolytes can be fabricated for electrochemical actuators with many desirable advantages, including direct low-voltage control in air, high electrochemical and thermal stability, and complete silence during actuation. However, the demands for active actuators with above features and load-driving ability remain a challenge; much work is necessary to enhance the mechanical strength of electrolyte materials. Herein, we describe a cross-linked supramolecular approach to prepare tough nanocomposite gel electrolytes from HEMA, BMIMBF4, and TiO2 via self-initiated UV polymerization. The tough and stable ionogels are emerging to fabricate electric double-layer capacitor-like soft actuators, which can be driven by electrically induced ion migration. The ionogel-based actuator shows a displacement response of 5.6 mm to the driving voltage of 3.5 V. After adding the additional mass weight of the same as the actuator, it still shows a large displacement response of 3.9 mm. Furthermore, the actuator can not only work in harsh temperature environments (100°C and -10°C) but also realize the goal of grabbing an object by adjusting the applied voltage.