Energy harvesting devices have emerged as a promising technology to not only meet global energy demands but also power biomedical electronics. The dramatic advancement in self-powered biomedical electronics used for monitoring and treatment of severe diseases is part of a paradigm shift that is on the horizon. The review paper highlights recent progress on energy harvesters for scavenging energy to realize self-powered systems. The emphasis is mainly on piezoelectric and triboelectric nanogenerators addressing the basic operating principle, electrical model, design techniques, newly developed materials and their performance as well as associated typical applications. Herein, piezoelectric devices have been compared on basis of their materials, energy conversion efficiency, piezoelectric coefficient and power harvesting circuit. In addition, the recent advances of hybrid nanogenerators in terms of its biomedical applications are also highlighted. Finally, the conclusions and future prospects towards self-powered systems for implantable and wearable medical electronic devices are discussed for effective health monitoring, bio-sensing and clinical therapy.

中文翻译：

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生物医学应用能量收集器的最新进展

能量收集设备已成为一种很有前途的技术，不仅可以满足全球能源需求，还可以为生物医学电子设备供电。用于监测和治疗严重疾病的自供电生物医学电子设备的巨大进步是即将到来的范式转变的一部分。该评论论文重点介绍了能量收集器的最新进展，用于清除能量以实现自供电系统。重点主要是压电和摩擦纳米发电机，涉及基本工作原理、电气模型、设计技术、新开发的材料及其性能以及相关的典型应用。在此，对压电器件的材料、能量转换效率、压电系数和功率收集电路进行了比较。此外，还强调了混合纳米发电机在生物医学应用方面的最新进展。最后，讨论了用于可植入和可穿戴医疗电子设备的自供电系统的结论和未来前景，以实现有效的健康监测、生物传感和临床治疗。