通过3D打印的压力波动驱动的电力发电3D打印的压电式支架
Fengdan Pan1, Jiajie Sui1, Zulmari Silva-Pedraza1,2
1Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.
ACS applied materials & interfaces
|May 15, 2024
概括
研究人员从生物相容复合材料开发了一种新的3D打印压电支架. 这种创新的支架可以从血压波动中产生电力,为实时血管监测和治疗提供了潜力.
科学领域:
- 生物材料科学 生物材料科学
- 医疗器械 医疗器械
- 纳米技术纳米技术
背景情况:
- 血管支架对于治疗狭窄的血管和恢复血液流动至关重要.
- 现有的支架缺乏集成的传感或治疗能力.
- 开发具有先进功能的智能支架是一个持续的挑战.
研究的目的:
- 报道了一种使用3D打印制造的新型压电式支架.
- 评估支架在生理条件下的压电特性,生物相容性和性能.
- 探索压电支架在现场监测和治疗应用中的潜力.
主要方法:
- 使用融合沉积建模3D打印制造一个齐克扎克形状的压电式支架.
- 从和酸尼奥比特微粒和聚乙烯化物-co-hexafluoropropylene) 制备一个压电复合物.
- 在现场抛光以诱导压电,并在体外测试生物相容性和压力诱导的电压产生.
主要成果:
- 3D打印的压电式支架表现出显著的压电性 (d33 ~ 4.2 pC N-1).
- 在体外试验证实了该材料对血管细胞的无毒性和低血栓潜力.
- 支架产生0.070.15V的峰值到峰值电压,以应对血压变化 (20120 psi),显示7.02 × 10-4 V Psi-1.的灵敏度.
结论:
- 一种新的,生物相容的压电式支架成功地使用3D打印制造出来.
- 支架展示了将机械压力波动转化为电信号的能力.
- 这些压电式支架为实时血管监测和先进的治疗功能提供了有前途的机会.
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