Highly stretchable, conductive, biocompatible conductors, and connectors are crucial for the fabrication of flexible devices. However, it remains a problem to get highly stretchable, conductive materials with low cost on a large scale. Another problem in production is the connection between soft and rigid components. Here, a new conductive nanocomposite is reported by mixing the 11‐mercaptoundecanoic acid (MUA) modified liquid metal (LM) nanoparticles with polystyrene‐block‐polybutadiene‐block‐polystyrene (SBS), which is biocompatible (in vivo and in vitro), conductive (12 000 S cm⁻¹ of conductivity), and stretchable (800% of elongation). Apart from its good performance, this material can be produced on a large scale by using a commercial polymer product and a straightforward physical production process. MUA is used to compromise the dense “gallium oxide shell” of liquid metal nanoparticles such that the whole composite can become conductive. By using resin to modify this composite, this new conductive material can be adhesive and highly conductive, and serve as a stable and efficient connector between soft conductor and rigid component.

中文翻译：

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具有高度可拉伸性和生物相容性的液态金属弹性体导体，可用于自愈电子

高度可拉伸，导电，生物相容的导体和连接器对于制造柔性设备至关重要。然而，以低成本大规模地获得高度可拉伸的导电材料仍然是一个问题。生产中的另一个问题是软性和刚性组件之间的连接。在这里，新的纳米复合材料导电性通过混合11巯基十一烷酸（MUA）报道改性聚苯乙烯-液态金属（LM）的纳米颗粒块-polybutadiene-块-聚苯乙烯（SBS），其是生物相容的（体内和体外），导电（12000 S cm ^-1导电性）和可拉伸性（伸长率的800％）。除了其良好的性能外，还可通过使用商业聚合物产品和简单的物理生产工艺来大规模生产这种材料。MUA用于破坏液态金属纳米颗粒的致密“氧化镓壳”，从而使整个复合材料变得导电。通过使用树脂对这种复合材料进行改性，这种新的导电材料可以具有粘性和高导电性，并且可以作为软导体和刚性组件之间的稳定有效连接器。