Additive manufacturing of nanocomposite microrobot via integration of multi-photon lithography with in-situ synthesis of nanoparticles
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초록
내용
Stimuli-responsive micromachine can break the unique ground on lab-on-a-chip and active drug delivery systems. A composite micromachine consisting of multiple materials can be a powerful tool to accomplish goals through the synergetic effect of different material properties. In this research, we will describe our strategy to design a multi-component micromachine that metal nanoparticles and stimuli-responsive polymer coexist. Photo-crosslinking of monomers by multi-photon direct laser writing and in-situ synthesis of magnetic nanoparticles are combined to embody a shape-morphing micromachine that is able to be remotely operated by an electromagnetic actuation system. Synthesis of nanoparticles by penetrating metal ions into the polymer network is an effective way to preserve the shape-morphing characteristic. Module-assembled micromachine can navigate in the fluidic system by transforming its shape dynamically and also showed the potential for therapeutic patches on injured regions.