Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid
Gallic acid (GA) is widely used in beverages, food, and other fields as antioxidant. However, GA is slightly toxic and the accumulation of GA is harmful to human body. Therefore, it's vital to develop simple and sensitive detection methods for GA. In this work, a novel ratiometric fluorescent n...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Food Chemistry: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590157524007314 |
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| author | Chunlei Yang Guiju Xu Chenghao Hou Hongwei Zhang |
| author_facet | Chunlei Yang Guiju Xu Chenghao Hou Hongwei Zhang |
| author_sort | Chunlei Yang |
| collection | DOAJ |
| description | Gallic acid (GA) is widely used in beverages, food, and other fields as antioxidant. However, GA is slightly toxic and the accumulation of GA is harmful to human body. Therefore, it's vital to develop simple and sensitive detection methods for GA. In this work, a novel ratiometric fluorescent nanoprobe (named CoOOH/OPD/SiNPs) for the GA detection in different foods was designed and prepared. The fluorescence of silicon nanoparticles (SiNPs) at 443 nm would be quenched by cobalt oxyhydroxide (CoOOH) nanoflakes. o-phenylenediamine (OPD) would be oxidized to 2,3-diaminophenazine (DAP) by CoOOH nanoflakes that have peroxidase-like activity, which produces a new fluorescent peak at 556 nm. Meanwhile, SiNPs' fluorescence would be quenched through DAP due to inner filter effect (IFE). With the addition of GA, the reductive decomposition of CoOOH decreased DAP level, causing IFE being restrained. The concentration of GA indicates an excellent linear relationship with fluorescence ratio (F443/F556) in range of 0.4–12 μM (R2 = 0.9937) with 0.16 μM detection limit. This nanoprobe is applied to GA detection in water, tea leaves, fruits and nut fruits, which would be expected to act as a portable device for complex substances analysis. |
| format | Article |
| id | doaj-art-eaf189d80f7b4903b34b3ffa4bba58cb |
| institution | OA Journals |
| issn | 2590-1575 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Chemistry: X |
| spelling | doaj-art-eaf189d80f7b4903b34b3ffa4bba58cb2025-08-20T01:59:34ZengElsevierFood Chemistry: X2590-15752024-12-012410184310.1016/j.fochx.2024.101843Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acidChunlei Yang0Guiju Xu1Chenghao Hou2Hongwei Zhang3Corresponding authors.; Institute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, PR ChinaInstitute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, PR ChinaInstitute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, PR ChinaCorresponding authors.; Institute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, PR ChinaGallic acid (GA) is widely used in beverages, food, and other fields as antioxidant. However, GA is slightly toxic and the accumulation of GA is harmful to human body. Therefore, it's vital to develop simple and sensitive detection methods for GA. In this work, a novel ratiometric fluorescent nanoprobe (named CoOOH/OPD/SiNPs) for the GA detection in different foods was designed and prepared. The fluorescence of silicon nanoparticles (SiNPs) at 443 nm would be quenched by cobalt oxyhydroxide (CoOOH) nanoflakes. o-phenylenediamine (OPD) would be oxidized to 2,3-diaminophenazine (DAP) by CoOOH nanoflakes that have peroxidase-like activity, which produces a new fluorescent peak at 556 nm. Meanwhile, SiNPs' fluorescence would be quenched through DAP due to inner filter effect (IFE). With the addition of GA, the reductive decomposition of CoOOH decreased DAP level, causing IFE being restrained. The concentration of GA indicates an excellent linear relationship with fluorescence ratio (F443/F556) in range of 0.4–12 μM (R2 = 0.9937) with 0.16 μM detection limit. This nanoprobe is applied to GA detection in water, tea leaves, fruits and nut fruits, which would be expected to act as a portable device for complex substances analysis.http://www.sciencedirect.com/science/article/pii/S2590157524007314CoOOH nanoflakesRatiometric fluorescenceGallic acid detectionFluorescent silicon nanoparticles |
| spellingShingle | Chunlei Yang Guiju Xu Chenghao Hou Hongwei Zhang Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid Food Chemistry: X CoOOH nanoflakes Ratiometric fluorescence Gallic acid detection Fluorescent silicon nanoparticles |
| title | Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| title_full | Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| title_fullStr | Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| title_full_unstemmed | Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| title_short | Cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| title_sort | cobalt oxyhydroxide nanoflakes enable ratiometric fluorescent assay of gallic acid |
| topic | CoOOH nanoflakes Ratiometric fluorescence Gallic acid detection Fluorescent silicon nanoparticles |
| url | http://www.sciencedirect.com/science/article/pii/S2590157524007314 |
| work_keys_str_mv | AT chunleiyang cobaltoxyhydroxidenanoflakesenableratiometricfluorescentassayofgallicacid AT guijuxu cobaltoxyhydroxidenanoflakesenableratiometricfluorescentassayofgallicacid AT chenghaohou cobaltoxyhydroxidenanoflakesenableratiometricfluorescentassayofgallicacid AT hongweizhang cobaltoxyhydroxidenanoflakesenableratiometricfluorescentassayofgallicacid |