柔性压电复合材料的医学应用

Medical applications of flexible piezoelectric composites

内源性电场广泛存在于生物体中,与组织重塑和生长密切相关.目前,电刺激疗法已被用于治疗颈椎病和风湿性关节炎等.然而,笨重的电子设备为患者带来不便,限制了电刺激在生物医学中的应用.柔性压电复合材料可以实现快速的力电转换,是自供电电子设备的理想材料.此外,压电材料能够实现原位电刺激,促进组织再生.为了促进对柔性压电复合材料在医学领域的进一步应用,本文综述了柔性压电复合材料的相关内容.首先,归纳了柔性压电复合材料的材料构成,并对增强压电特性的途径和机理进行总结;然后,简要介绍了常用的制备工艺和生物医学领域的应用;最后,总结了柔性压电复合材料在医学应用的前景,并对未来发展进行了展望.

Endogenous electric fields are widely present in organisms and are closely related to tissue remodeling and growth.At present,electrical stimulation therapy has been used to treat cervical spondylosis and rheumatoid arthritis.However,bulky electronic devices cause discomfort to patients,limiting the use of electrical stimulation in biomedicine.Flexible piezoelectric composites enable fast electromechanical conversion and are ideal materials for self-powered electronics.In addition,piezoelectric materials enable in situ electrical stimulation and promote tissue regeneration.In order to promote the further application of flexible piezoelectric composites in the medical field,this article reviews the relevant contents of flexible piezoelectric composites.Firstly,the material composition of flexible piezoelectric composites is summarized,and the pathways and mechanisms of enhancing piezoelectric characteristics are summarized.Then,common preparation processes and applications in the biomedical field are briefly introduced.Finally,the prospect of flexible piezoelectric composites in medical applications and the future development are proposed.