Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 414, Issue 15, Pages 4311-4330Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-022-04014-6
Keywords
Oxygen; Fluorescence; Phosphorescence; Sensor; Porosity; Sensitivity
Funding
- Graz University of Technology
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This review compares porous materials used as matrices for luminescent oxygen indicators, analyzing the influence of material structure and composition on oxygen quenching efficiency and dynamic response times. The advantages and disadvantages of various materials are summarized to guide the design and practical application of sensors with desired sensitivity and response time.
The review provides comparison of porous materials that act as a matrix for luminescent oxygen indicators. These include silica-gels, sol-gel materials based on silica and organically modified silica (Ormosils), aerogels, electrospun polymeric nanofibers, metal-organic frameworks, anodized alumina, and various other microstructured sensor matrices. The influence of material structure and composition on the efficiency of oxygen quenching and dynamic response times is compared and the advantages and disadvantages of the materials are summarized to give a guide for design and practical application of sensors with desired sensitivity and response time.
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