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基于掺杂银纳米颗粒的钌配合物的比率型溶解氧传感器。

Ratiometric Dissolved Oxygen Sensors Based on Ruthenium Complex Doped with Silver Nanoparticles.

作者信息

Jiang Zike, Yu Xinsheng, Zhai Shikui, Hao Yingyan

机构信息

Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, College of Marine Geosciences, Ocean University of China, Qingdao 266100, China.

出版信息

Sensors (Basel). 2017 Mar 9;17(3):548. doi: 10.3390/s17030548.

DOI:10.3390/s17030548
PMID:28282946
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5375834/
Abstract

A ratiometric optical sensor has been developed with electrospinning processing method for dissolved oxygen measurement. The sensing film is fabricated by using silver nano-particles (Ag NPs) doped with tris(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) dichloride complex (Ru(DPP)₃Cl₂) encapsulated in plasticized polymethyl methacrylate (PMMA). An insensitive 3-(2-benzothiazolyl)-7-(diethy lamino)-(6CI,7CI) (Coumarin6) is adopted as reference. The ratio of oxygenation is calculated at each image pixel of a 3CCD camera to quantify the oxygen concentration in aqueous environment. Compared to Ag-free film, the response time of Ag-containing films were improved from 1.5 s to 1.0 s upon switching from deoxygenated to air saturation and from 65 s to 45 s from air saturation to fully deoxygenated. The response times of the Ag-free film obtained by knifing was 2.0 s upon switching from deoxygenated to air saturation and 104 s from air saturation to fully deoxygenated. Results of the evaluation of accuracy, limit of detection, stability, and photostability are presented. An experiment measuring the spatiotemporal variation of oxygen distribution within the photosynthesis and respiration of is demonstrated. It is shown that the nanofiber-based optical sensor film could serve as a promising method for rapid oxygen monitoring in aqueous applications.

摘要

已采用静电纺丝工艺开发出一种用于溶解氧测量的比率光学传感器。传感膜是通过将掺杂有二氯三（4,7-二苯基-1,10-菲咯啉）钌（II）配合物（Ru(DPP)₃Cl₂）的银纳米颗粒（Ag NPs）封装在增塑聚甲基丙烯酸甲酯（PMMA）中制成的。采用不敏感的3-（2-苯并噻唑基）-7-（二乙氨基）-（6CI,7CI）（香豆素6）作为参比。在3CCD相机的每个图像像素处计算氧化比率，以量化水环境中的氧浓度。与不含银的膜相比，含银膜的响应时间在从脱氧状态切换到空气饱和状态时从1.5秒提高到1.0秒，在从空气饱和状态切换到完全脱氧状态时从65秒提高到45秒。通过刮刀法获得的不含银膜在从脱氧状态切换到空气饱和状态时的响应时间为2.0秒，在从空气饱和状态切换到完全脱氧状态时为104秒。给出了准确性、检测限、稳定性和光稳定性的评估结果。展示了一个测量光合作用和呼吸作用过程中氧分布时空变化的实验。结果表明，基于纳米纤维的光学传感膜可作为一种在水性应用中快速监测氧的有前景的方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/f9fd0a0ab175/sensors-17-00548-g015.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/fc5e16737899/sensors-17-00548-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/df7eb49ccb87/sensors-17-00548-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/246144ffdfb4/sensors-17-00548-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/891ded6ae524/sensors-17-00548-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/0de77d6a1972/sensors-17-00548-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/99bea448f3e4/sensors-17-00548-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/051c/5375834/f9fd0a0ab175/sensors-17-00548-g015.jpg

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