Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage
Salmonella typhimurium (S. typhimurium) is a leading biological factor of foodborne diseases. A sensitive detection for S. typhimurium is crucial to controlling fresh vegetable-related outbreaks. Here, fluorescence-based S. typhimurium detection in fresh cabbage samples has been reported which capit...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Journal of King Saud University: Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S101836472400123X |
| _version_ | 1797203094653632512 |
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| author | Abdulhakeem Alzahrani Tawfiq Alsulami Ahmad Mohammad Salamatullah Hind Saeed Alzahrani |
| author_facet | Abdulhakeem Alzahrani Tawfiq Alsulami Ahmad Mohammad Salamatullah Hind Saeed Alzahrani |
| author_sort | Abdulhakeem Alzahrani |
| collection | DOAJ |
| description | Salmonella typhimurium (S. typhimurium) is a leading biological factor of foodborne diseases. A sensitive detection for S. typhimurium is crucial to controlling fresh vegetable-related outbreaks. Here, fluorescence-based S. typhimurium detection in fresh cabbage samples has been reported which capitalizes on the plasmon-exciton interaction between non-spherical gold nanoparticles-covered iron oxide nanoparticles (Fe3O4@Au NPs) and gold quantum dots (Au QDs). Firstly, new synthesis methods for non-spherical Fe3O4@Au NPs and Au QDs are reported. Then, a two-fold emission enhancement and shortening of the lifetime were achieved from urchin-like NPs compared with those of spherical NPs. This finding was utilized for the detection of S. typhimurium. Results revealed that the changes in fluorescence emission were linearly correlated with the concentration of S. typhimurium within the range of 100–1000 colony forming unit per milliliter (CFU mL−1) and the limit of detection was 32 CFU mL−1 in fresh cabbage. |
| first_indexed | 2024-04-24T08:13:52Z |
| format | Article |
| id | doaj.art-5c04f66bc57d4d058d7e1a8bbf96cdc9 |
| institution | Directory Open Access Journal |
| issn | 1018-3647 |
| language | English |
| last_indexed | 2024-04-24T08:13:52Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Science |
| spelling | doaj.art-5c04f66bc57d4d058d7e1a8bbf96cdc92024-04-17T04:48:35ZengElsevierJournal of King Saud University: Science1018-36472024-07-01366103211Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbageAbdulhakeem Alzahrani0Tawfiq Alsulami1Ahmad Mohammad Salamatullah2Hind Saeed Alzahrani3Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia; Corresponding author.Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Physics, College of Science, Taif University, Taif 21944, Saudi ArabiaSalmonella typhimurium (S. typhimurium) is a leading biological factor of foodborne diseases. A sensitive detection for S. typhimurium is crucial to controlling fresh vegetable-related outbreaks. Here, fluorescence-based S. typhimurium detection in fresh cabbage samples has been reported which capitalizes on the plasmon-exciton interaction between non-spherical gold nanoparticles-covered iron oxide nanoparticles (Fe3O4@Au NPs) and gold quantum dots (Au QDs). Firstly, new synthesis methods for non-spherical Fe3O4@Au NPs and Au QDs are reported. Then, a two-fold emission enhancement and shortening of the lifetime were achieved from urchin-like NPs compared with those of spherical NPs. This finding was utilized for the detection of S. typhimurium. Results revealed that the changes in fluorescence emission were linearly correlated with the concentration of S. typhimurium within the range of 100–1000 colony forming unit per milliliter (CFU mL−1) and the limit of detection was 32 CFU mL−1 in fresh cabbage.http://www.sciencedirect.com/science/article/pii/S101836472400123XUrchin-like Fe3O4@Au NPsGold quantum dotsFluorescence enhancementSalmonella typhimurium detection |
| spellingShingle | Abdulhakeem Alzahrani Tawfiq Alsulami Ahmad Mohammad Salamatullah Hind Saeed Alzahrani Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage Journal of King Saud University: Science Urchin-like Fe3O4@Au NPs Gold quantum dots Fluorescence enhancement Salmonella typhimurium detection |
| title | Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage |
| title_full | Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage |
| title_fullStr | Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage |
| title_full_unstemmed | Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage |
| title_short | Rough Fe3O4/gold nanostructure enhanced fluorescence of quantum dots for Salmonella typhimurium detection in cabbage |
| title_sort | rough fe3o4 gold nanostructure enhanced fluorescence of quantum dots for salmonella typhimurium detection in cabbage |
| topic | Urchin-like Fe3O4@Au NPs Gold quantum dots Fluorescence enhancement Salmonella typhimurium detection |
| url | http://www.sciencedirect.com/science/article/pii/S101836472400123X |
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