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3D打印的微电极用于生物测量.

Zehao Xue1, Kanisha Patel1, Paankhuri Bhatia1

  • 1School of Applied Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, U.K.

Analytical chemistry
|July 22, 2024
PubMed
概括

通过3D打印,可以精确制造新的微电极,使用导电热塑料,如碳黑/聚乳酸和多壁碳纳米管/聚乳酸,用于生物监测.

科学领域:

  • 电化学 电化学 电化学
  • 材料科学 材料科学 材料科学
  • 生物医学工程 生物医学工程

背景情况:

  • 微电极对于空间生物监测至关重要.
  • 碳纤维是一种常见的微电极材料,但正在寻找替代品.
  • 3D打印为微电极制造提供了高精度.

研究的目的:

  • 开发和评估使用导电热塑性材料3D打印的微电极.
  • 评估碳黑/聚乳酸 (CB/PLA) 和多壁碳纳米管/聚乳酸 (MWCNT/PLA) 微电极的性能.
  • 为了证明这些微电极在监测生物分析物的应用.

主要方法:

  • 化丝制造被用于将CB/PLA和MWCNT/PLA丝3D打印成微电极.
  • 制造了直径从70μm到400μm的微电极.
  • 电化学性能使用标准氧化还原探针和血清素 (5-HT) 检测进行了评估.

主要成果:

  • MWCNT/PLA微电极显示出更高的灵敏度,更低的检测极限,以及对5-HT测量的增强稳定性.
  • 无论是CB/PLA还是MWCNT/PLA微电极,都成功地监测了来自ex vivo骨髓组织的5-HT溢出.
  • 在使用MWCNT/PLA微电极暴露于香料气味后,检测到来自大肠和结肠组织的5-HT溢出中的差异.

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结论:

  • 3D打印提供了一个多功能平台,可以从各种导电热塑性材料中创建微电极.
  • 这种方法简化了定制微电极的制造,用于各种电化学传感应用.
  • MWCNT/PLA微电极显示出在现场生物监测的巨大潜力,特别是对于神经递质如血清素.