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Chinese researchers develop 4D-printed shape memory polymer for medical devices(Xinhua) 14:31, March 02, 2023

LANZHOU, March 2 (Xinhua) -- Chinese researchers have developed a biodegradable shape memory polymer (SMP) using 4D-printing technology that is suitable for medical devices, according to the Lanzhou University.Biodegradable Plastics：生物可分解塑胶The course is suitable for both beginners and advanced students. 这门课程对初学者和高阶学生都适合。Medical Devices：医疗仪器、医疗设备Researchers from Lanzhou University Second Hospital and Lanzhou Institute of Chemical Physics under the Chinese Academy of Sciences jointly carried out the study combining interdisciplinary research from materials science and clinical medicine.[PHRASAL VERB]If you carry out a threat, task, or instruction, you do it or act according to it. 实行We should carry out the policy of integrating unified planning with the principle of adaptation to local conditions.我们应该执行计划同因事制宜的原则相结合的政策。Interdisciplinary research 跨学科研究、交叉研究Materials science材料科学、材料学Clinical medicine临床医学They have also reported a 4D-printed shape memory inferior vena cava filters, an implantation device which can prevent the fatal pulmonary embolism, to exemplify the applicability of the biodegradable shape memory polymer in biomedical devices.inferior vena cava filters下腔静脉滤器implantation device植入装置fatal pulmonary embolism致死性肺动脉栓塞[V-T]If a person or thing exemplifies/ ?ɡ?zempl?fa? / something such as a situation, quality, or class of things, they are a typical example of it. 是…的典范The room"s style exemplifies their ideal of "beauty and practicality."这个房间的风格是他们“美观实用”理想的典范Applicability：适用性Biodegradable SMP with suitable transition temperatures and mechanical properties are in high demand in the biomedical field as deployable medical devices.The new study provides a new biocompatible SMP and a new strategy for developing deployable medical devices.The study results have been published in the journal of Materials &Design.百科知识：?4D打印：“实际上4D打印是3D打印的延伸，增加了一个纬度，1D、2D、3D，4D就是立体的，什么是4D呢？4D就是加了一个时间纬度，根据时间能够改变形状、改变特性、改变软硬、改变颜色，这都叫一维，我都叫4D，打印之后这个东西能变形。比如衣服，女士的裙子，4D打印之后可以控制形状的变化，就不会产生撞衫。4D是动的，可以变形，用什么材料变形可以选择。打印方法有很多，各位老师都知道，有熔融的、立体光刻的，包括激光纸写的，这些方法都可以做成4D打印。”- 来源：AMCC2018 高峰论坛：国际复合材料委员会副、欧洲科学与艺术院院士、长江学者教授冷劲松作《形状记忆聚合物材料及其4D打印：机遇、挑战及应用》主题演讲?形状记忆聚合物(Shape Memory Polymer,简称SMP),又称为形状记忆高分子是一类新型的功能高分子材料，是高分子材料研究、开发、应用的一个新的分支点，它同时兼具有塑料和橡胶的特性。随着对高分子结构和特性认识的深化，以及高分子合成技术的发展，使高分子材料通过分子设计得到预期结构和性能成为现实。