Ag纳米线

Directional Alignment and Printing of One Dimensional Nanomaterials Using the Combination of Microstructure and Hydrodynamic ForceAg nanowires;micro-engraved Si substrate;hydrodynamic force;modified gravure printing;The printing of nanomaterials onto certain substrates is one of the key technologies behind high-speed interconnection and high-performance electronic devices. For the printing of next-generation electronic devices, a printing process which can be applied to a flexible substrate is needed.

我们演示了Co3O4 (来源于沸石咪唑酸骨架-67 )包裹Ag纳米线核壳纳米结构的制备，并将其负载在石墨烯基体( Co3O4 @ Ag NWs-GR )上制备无酶葡萄糖传感器。核壳结构的Co3 O4 @ Ag纳米线具有多孔的表面，所提出的Co3 O4 @ Ag NWs- GR纳米复合材料呈现分级结构，有助于提高无酶葡萄糖检测性能。在实际应用中，将制备的Co3O4 @ Ag NWs-GR纳米复合材料用泡沫镍( NF )夹心制成葡萄糖检测电极，具有良好的重现性和葡萄糖的特异性选择性。然后，将Co3O4 @ Ag NWs-GR / NF电极分别与Pt丝、Ag / AgCl丝和聚二甲基硅氧烷( PDMS )集成，制备了敏感器件。研制器件的安培响应表明，Co3O4 @ Ag NWs-GR / NF基传感器在3 ~ 2000  μM的线性区间内呈现2.49μA / μM / cm2的高灵敏度，检出限为0.98  μM，长期稳定性突出。此外，利用人血清验证了基于Co3O4 @ Ag NWs - GR的葡萄糖传感器能够检测血清中的葡萄糖水平，表明其适用于无酶葡萄糖的测定。