一个决定与组织水平和可伸缩的封装材料杨氏模量。)示意图bioelectronic接口的周围神经和软导体电极和绝缘材料。b)逐步PEDOT的示意图:PSS决定合成工艺和SEM图像显示形态变化在每一步合成的一个决定。c)特区电导和电导率变化在过渡从离子凝胶电解珩磨泡在水里。d)在转换过程中体积变化从离子凝胶电解珩磨。f)电化学阻抗的变化在不同的单轴压力在1赫兹,100赫兹和1 kHz电场频率。决定膜厚度在应变0% 200海里。y g,表面阻抗在不同压力和频率的阴谋。h)单轴应力-应变曲线的大部分决定样本。i)的分子结构弹性PFPE-DMA (dimethacrylate-functionalized perfluoropolyether)进行交联过程后暴露于紫外线光。 j) Uniaxial stress–strain curve of the crosslinked fluorinated elastic PFPE-DMA. k) Comparison of Young’s modulus values between commonly used dielectric materials and the conductor with PFPE-DMA and ECH. Conductive and insulation materials are shaded in pink and blue, respectively. Credit:自然生物医学工程,doi: https://doi.org/10.1038/s41551 - 018 - 0335 - 6
小说的电极阵列薄膜水凝胶被称为“elastronics。”They are 20 µm in feature size, with significantly reduced interfacial impedance in the surrounding tissue. The system contains a current-injection density approximately 30 times greater than platinum electrodes and shows stable electrical performance under strain. The scientists demonstrated the use of soft elastronic arrays for localized, low-voltage electrical stimulation of the sciatic nerve in live mice.
光刻水凝胶elastronics。左一):逐步插图的光刻装置。传统光刻进行PEDOT: PSS-ionic液体(IL)离子凝胶盟硬掩模。之后,微型图象被干蚀刻转移到离子凝胶。最后,微型图象离子凝胶被水交换了。右:复杂的微观结构装置,直线和曲线都解决了。b)左:逐步说明对光刻PFPE缩微成像。PFPE-DMA混合剂和旋转涂布。紫外线是用来交联PFPE-DMA形式感兴趣的微型图象。右:扫描电镜的图像photolithographically微型图象PFPE-DMA结构直线和曲线。 c) A freestanding MECH elastronics electrode array pressed against soft jelly. Scale bar, 2 mm. d) Zoomed-in image of MECH electrodes (dark lines) with PFPE-DMA encapsulation (colored as light blue). e) Schematic of an elastronic electrode, a MECH electrode and interconnect sandwiched by photolithographically micropatterned fluorinated polymer PFPE-DMA as the top and bottom insulation layers. f) MECH electrode array stretched under 20% tensile strain shows no cracks. Credit: Nature Biomedical Engineering, doi: https://doi.org/10.1038/s41551-018-0335-6
用户评论