声学滴滴蒸发效率和氧气清理在全血中
Kateryna Stone1, Nour Al Rifai1, Demetria M Fischesser2
1Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA.
Ultrasound in medicine & biology
|November 20, 2024
概括
声波滴滴蒸发 (ADV) 使用脱鲁布坦 (DFB) 滴滴在全血中表现出优异的氧气清理能力,而不是完罗坦 (PFP) 滴滴. 这种ADV技术在血液中氧气管理方面表现有前途.
科学领域:
- 生物医学工程 生物医学工程
- 超声波技术 超声波技术 超声波技术
- 材料科学 材料科学 材料科学
背景情况:
- 声波滴滴蒸发 (ADV) 在超声波暴露时,促进了碳 (PFC) 滴滴在超声波暴露后转化为微气泡的液态气相过渡.
- 后ADV微泡促进氧气从周围的液体清理,在全血中具有有限的特征的过程.
- 了解ADV在血液中的功效对于开发新的氧气管理策略至关重要.
研究的目的:
- 为了评估碳 (PFC) 滴在盐水缓冲和全牛血液中的氧气清除和过渡效率 (TE).
- 为了比较decafluorobutane (DFB) 和 perfluoropentane (PFP) 核心滴滴的性能,用于ADV诱导的氧气清理.
- 根据实验ADV TE值,开发一个数学模型来预测全血中氧气的吸收.
主要方法:
- 使用体外流量幻影与脂外的DFB或PFP核心滴滴来评估全血中通过ADV的氧气清理.
- 采用光标记滴和流动细胞计量来量化全血中的ADV TE.
- 开发了一个数学模型,整合了实验TE数据来预测全血氧吸收.
主要成果:
- 在缓冲液和全血中,DFB液滴表现出明显更大的氧气吸收和比PFP液滴更高的TE.
- 滴滴度的增加导致从血红蛋白结合和全血中溶解的氧气中提升了氧气的吸收.
- 一个DFB滴滴度为5×10−4mL/mL导致总氧气减少913μM,而TE在更高度下降.
结论:
- 与ADV应用中的PFP液滴相比,DFB液滴提供了优越的氧气清理和TE.
- 该研究成功地在全血中表征了氧气清理和ADV TE,验证了开发的数学模型.
- 这些发现突显了基于DFB的ADV在生物系统中有效的氧气管理方面的潜力.
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