PVDF/M5AH@UiO-66-NH2复合膜:通过CRDS有效地分离呼吸中的乙/异烯,并通过CRDS进行高度敏感的检测
Fengyun Su1, Bojun Zhang1, Qianqian Liu2
1State Key Laboratory of Advanced Separation Membrane Materials, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Cangzhou, 061000, China.
Talanta
|January 23, 2026
概括
一个新的膜有效地将呼吸中的异烯和分离出来,改善了肺癌的诊断. 这促进了挥发性有机化合物分析,用于早期发现和监测疾病.
科学领域:
- 分析化学 分析化学
- 生物标志物发现发现
- 材料科学 材料科学 材料科学
背景情况:
- 腔环缩光谱 (CRDS) 检测到呼吸中的挥发性有机化合物 (VOC),如异二烯,一个肺癌生物标志物.
- 呼吸中的乙干扰了使用CRDS的准确异二烯测量,阻碍了可靠的肺癌诊断.
研究的目的:
- 开发一种新型的复合膜,用于在呼吸样本中超微分离异烯和乙.
- 用CRDS提高对肺癌诊断的异二烯测量的准确性.
主要方法:
- 制造和优化PVDF/M5AH@UiO-66-NH2复合膜,用于选择性异烯和乙分离.
- 使用质子转移反应飞行时间质谱法 (PTR-TOF-MS) 验证膜性能.
- 使用PTR-TOF-MS和CRDS在膜分离前后分析来自肺癌患者和健康对照者的呼吸样本.
主要成果:
- 最佳的PVDF/M5AH@UiO-66-NH2膜减少了酸盐的~89.2%,同时对异烯水平的影响最小.
- 呼出的异烯水平在健康对照组 (238.7 ppbv) 中高于肺癌患者 (169.0 ppbv).
- 膜分离显著改善了肺癌患者的CRDS异烯测量,提高了诊断准确度.
结论:
- 开发的复合膜有效分离异烯和乙,解决了CRDS呼吸分析的关键局限性.
- 分离的异烯显示了肺癌的增强诊断潜力,ROC曲线分析验证了这一点.
- 这项技术对敏感的临床诊断,生物标志物验证和肺癌的长期监测具有前景.
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