用紫外- c脉冲光发生器和硅光电倍增管监测咖啡酸的光聚合

2021 4th International Conference on Bio-Engineering for Smart Technologies (BioSMART) Pub Date : 2021-12-08 DOI:10.1109/BioSMART54244.2021.9677763

Wail Sabbani, B. Orsal, L. P. Bidel, L. Urban, C. Jay-Allemand, Fanny Rolet

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引用次数: 0

摘要

采用278 nm紫外-c光脉冲触发咖啡酸(3,4-二羟基反式肉桂酸酯)的光聚合，在此过程中测量咖啡酸的荧光，并将其作为光聚合过程的指标。本文提出了一种在盖革模式下，利用硅光电倍增管SiPM对咖啡酸在UV-C辐射脉冲激发下的荧光信号进行评价的技术方法。此外，液相色谱-质谱(LC-MS)分析表明，咖啡酸二聚体被成功地光二聚。

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Monitoring photopolymerization of caffeic acid using a UV-C pulsed light generator and silicon photomultiplier

The photopolymerization of caffeic acid (3,4-Dihydroxy-trans-cinnamate) was triggered using pulses of UV-C light at 278 nm during which the fluorescence of caffeic acid was measured and can be considered as an indicator for this pho-topolymerization process. We present a technological approach and evaluate the fluorescence signal of caffeic acid excited by pulses of UV-C radiation using a silicon photomultiplier SiPM in Geiger mode. Furthermore, liquid chromatography - mass spectrometry (LC-MS) analysis showed that a dimer of caffeic acid was successfully photodimerized.

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2021 4th International Conference on Bio-Engineering for Smart Technologies (BioSMART)

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