A genetically-encoded biosensor for direct detection of perfluorooctanoic acid.
A genetically-encoded biosensor for direct detection of perfluorooctanoic acid.
复制标题
一种直接检测全氟辛酸的基因编码生物传感器。
DOI:
10.1038/s41598-023-41953-1
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发表时间:
2023-09-13
影响因子:
4.6
通讯作者:
中科院分区:
文献类型:
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作者:
Determination of per- and polyfluoroalkyl substances (PFAS) in drinking water at the low levels set by regulatory officials has been a major focus for sensor developing researchers. However, it is becoming more apparent that detection of these contaminants in soils, foods and consumer products is relevant and necessary at part per billion and even part per million levels. Here, a fluorescent biosensor for the rapid detection of PFOA was engineered based on human liver fatty acid binding protein (hLFABP). By conjugating circularly permuted green fluorescent protein (cp.GFP) to a split hLFABP construct, the biosensor was able to detect perfluorooctanoic acid PFOA in PBS as well as environmental water samples with LODs of 236 and 330 ppb respectively. Furthermore, E. coli cells cytosolically expressing the protein-based sensor were demonstrated to quickly detect PFOA, demonstrating feasibility of whole-cell sensing. Overall, this work demonstrates a platform technology utilizing a circularly permuted GFP and split hLFABP conjugate as a label-free optical biosensor for PFOA.
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DOI:
10.3390/s22041513
发表时间:
2022-02-15
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Gavrilaș S;Ursachi CȘ;Perța-Crișan S;Munteanu FD
通讯作者:
Munteanu FD
影响因子:
3.3
作者:
Hess, ST;Heikal, AA;Webb, WW
通讯作者:
Webb, WW
影响因子:
3.5
作者:
Cormack, BP;Valdivia, RH;Falkow, S
通讯作者:
Falkow, S
影响因子:
3.4
作者:
Cai, Jun;Luecke, Christian;Hamilton, James A.
通讯作者:
Hamilton, James A.
影响因子:
11.4
作者:
Guelfo, Jennifer L.;Higgins, Christopher P.
通讯作者:
Higgins, Christopher P.