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使用填充表面活性剂的介孔二氧化硅作为荧光寿命pH指示剂的固定介质，可提供长期校准稳定性。

The use of surfactant-filled mesoporous silica as an immobilising medium for a fluorescence lifetime pH indicator, providing long-term calibration stability.

作者信息

Totland C, Thomas P J, Holst B, Akhtar N, Hovdenes J, Skodvin T

机构信息

Department of Chemistry, University of Bergen Allégaten 41 5020 Bergen Norway

Norwegian Research Centre Fantoftvegen 38 Bergen Norway.

出版信息

RSC Adv. 2019 Nov 14;9(64):37241-37244. doi: 10.1039/c9ra07374d. eCollection 2019 Nov 13.

DOI:10.1039/c9ra07374d
PMID:35542277
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9075546/
Abstract

Surfactant filled mesoporous silica is applied as a matrix for immobilizing the fluorescence lifetime pH-indicator acridine. We demonstrate that this type of encapsulation provides a stable and uniform chemical environment for the indicator and has good proton transport properties leading to rapid pH response times. Furthermore, the immobilising medium effectively prevents leaching of the indicator, facilitates high long-term stability and does not influence the pH sensing-range of the indicator.

摘要

填充表面活性剂的介孔二氧化硅被用作固定荧光寿命pH指示剂吖啶的基质。我们证明，这种包封方式为指示剂提供了稳定且均匀的化学环境，具有良好的质子传输特性，从而实现快速的pH响应时间。此外，固定介质有效地防止了指示剂的浸出，有助于实现高长期稳定性，并且不影响指示剂的pH传感范围。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/bfa1f5fb47f3/c9ra07374d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/592f48e0df12/c9ra07374d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/ec34ae4aebe6/c9ra07374d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/393bc82d2abe/c9ra07374d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/bfa1f5fb47f3/c9ra07374d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/592f48e0df12/c9ra07374d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/ec34ae4aebe6/c9ra07374d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/393bc82d2abe/c9ra07374d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a01/9075546/bfa1f5fb47f3/c9ra07374d-f4.jpg

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