Rim-differentiated pillar[5]arene-modified surfaces for rapid PFOA/PFOS detection

A new rim-differentiated pillar[5]arene (RD-P5) has been synthesized and immobilized onto an Al 2 O 3 surface for the rapid detection of perfluoroalkyl acids. This P5-Al 2 O 3 surface provides a novel approach for measuring perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) using...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-09, Vol.6 (72), p.9789-9792
Main Authors: Gao, Tu-Nan, Yang, Zhen, Goed, Jesse M. S, Zuilhof, Han, Miloserdov, Fedor M
Format: Article
Language:English
Subjects:
Aluminum oxide
Contact angle
Perfluoro compounds
Sulfonic acid
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Summary:A new rim-differentiated pillar[5]arene (RD-P5) has been synthesized and immobilized onto an Al 2 O 3 surface for the rapid detection of perfluoroalkyl acids. This P5-Al 2 O 3 surface provides a novel approach for measuring perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) using contact angle measurements, with limits of detection down to 10 ng L −1 . Ammino-functionalized rim-differentiated pillar[5]arene immobilized onto a surface allow rapid contact angle-based detection of perfluoroalkyl acids (LOD down to 10 ng L −1 ).
ISSN:1359-7345
1364-548X
DOI:10.1039/d4cc02676d