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Chinese scientists develop shape memory polymer with delayed recovery onset

2023/9/18 9:35:55   source:CGTN

作者来源:西安网   金龙28
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          重点推荐:科睿特集团总部迎来赣南科技学院大学生实践团

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          科睿特集团总部迎来赣南科技学院大学生实践团

          Chinese scientists have developed a memory material capable of delayed deformation following a trigger, ushering in new prospects for applications in biological devices, soft robotics, aerospace structures and flexible electronics.

          The shape-shifting hydrogel described in a study published this week in the journal Nature is shown to undergo shape transformation at natural ambient temperature, with a recovery onset delay of up to 46 minutes.

          The delay durations are programmable, which offers a unique mechanism for shape-shifting control, according to researchers from Zhejiang University.

          A delayed transformation is desirable since certain shape-shifting polymers rely on naturally present stimuli as triggers, like human body temperature, but their transformation timings are hardly controllable, forming a bottleneck for the application of implantable devices.

          In the study, the researchers demonstrated a four-dimensional printed intravascular stent that shifted shape at a certain time after it was brought into the targeted place in a blocked blood vessel.

          The naturally triggered shape-memory polymer with a tunable recovery onset can markedly lower the barrier for device implementation, according to researchers.

          Source(s): Xinhua News Agency

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