Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications
Abstract A highly fluorescent silver nanostructure was obtained from a commercially available pharmaceutical drug in an alkaline solution. The fluorescence observed was highly selective to Ag⁺, attributed to the in situ formation of Ag⁰ nanostructures. Nanoclusters are usually ≤ 2 nm in size. Micros...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-06-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-04261-4 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850223843177660416 |
|---|---|
| author | Priyanka Sharma Mamta Sahu Mainak Ganguly Ankita Doi |
| author_facet | Priyanka Sharma Mamta Sahu Mainak Ganguly Ankita Doi |
| author_sort | Priyanka Sharma |
| collection | DOAJ |
| description | Abstract A highly fluorescent silver nanostructure was obtained from a commercially available pharmaceutical drug in an alkaline solution. The fluorescence observed was highly selective to Ag⁺, attributed to the in situ formation of Ag⁰ nanostructures. Nanoclusters are usually ≤ 2 nm in size. Microscopic techniques and dynamic light scattering spectroscopy did not find the presence of particles with ≤ 2 nm in our present work. The absence of a plasmon band in absorption spectroscopy and the presence of Ag2–Ag4 in LCMS fragmentations supported the silver giant nanocluster (a larger particle decorating with tiny clusters) with discrete energy levels due to inter-band d–d transition. It ruled out metal-enhanced fluorescence (MEF). Na+ increased the fluorescence intensity of giant clusters due to the natural crystallization and confinement effect. The influence of heat and sunlight was analyzed before and after Na+ inclusion. Thus, Ag+ (linear detection range of 5 × 10− 5 M to 1 × 10− 7 M and limit of detection of 3.6 × 10− 6 M) and Na+ (linear detection range 10− 6 M to 10− 9 M and limit of detection 7.2 × 10− 8 M) dual sensing was made possible in a single pot. The technique can facilitate sustainable water management to control water pollution. |
| format | Article |
| id | doaj-art-171cb40f79dd4fffba7d63d1430381ff |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-171cb40f79dd4fffba7d63d1430381ff2025-08-20T02:05:48ZengNature PortfolioScientific Reports2045-23222025-06-0115111410.1038/s41598-025-04261-4Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applicationsPriyanka Sharma0Mamta Sahu1Mainak Ganguly2Ankita Doi3Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University JaipurSolar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University JaipurSolar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University JaipurDepartment of BioSciences, Manipal University JaipurAbstract A highly fluorescent silver nanostructure was obtained from a commercially available pharmaceutical drug in an alkaline solution. The fluorescence observed was highly selective to Ag⁺, attributed to the in situ formation of Ag⁰ nanostructures. Nanoclusters are usually ≤ 2 nm in size. Microscopic techniques and dynamic light scattering spectroscopy did not find the presence of particles with ≤ 2 nm in our present work. The absence of a plasmon band in absorption spectroscopy and the presence of Ag2–Ag4 in LCMS fragmentations supported the silver giant nanocluster (a larger particle decorating with tiny clusters) with discrete energy levels due to inter-band d–d transition. It ruled out metal-enhanced fluorescence (MEF). Na+ increased the fluorescence intensity of giant clusters due to the natural crystallization and confinement effect. The influence of heat and sunlight was analyzed before and after Na+ inclusion. Thus, Ag+ (linear detection range of 5 × 10− 5 M to 1 × 10− 7 M and limit of detection of 3.6 × 10− 6 M) and Na+ (linear detection range 10− 6 M to 10− 9 M and limit of detection 7.2 × 10− 8 M) dual sensing was made possible in a single pot. The technique can facilitate sustainable water management to control water pollution.https://doi.org/10.1038/s41598-025-04261-4DetectionNatural crystallizationConfinementStabilitySustainable water management |
| spellingShingle | Priyanka Sharma Mamta Sahu Mainak Ganguly Ankita Doi Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications Scientific Reports Detection Natural crystallization Confinement Stability Sustainable water management |
| title | Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications |
| title_full | Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications |
| title_fullStr | Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications |
| title_full_unstemmed | Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications |
| title_short | Synergism of Ag+ and Na+ in N-acetyl-p-quinoneimine matrix for dual sensing applications |
| title_sort | synergism of ag and na in n acetyl p quinoneimine matrix for dual sensing applications |
| topic | Detection Natural crystallization Confinement Stability Sustainable water management |
| url | https://doi.org/10.1038/s41598-025-04261-4 |
| work_keys_str_mv | AT priyankasharma synergismofagandnainnacetylpquinoneiminematrixfordualsensingapplications AT mamtasahu synergismofagandnainnacetylpquinoneiminematrixfordualsensingapplications AT mainakganguly synergismofagandnainnacetylpquinoneiminematrixfordualsensingapplications AT ankitadoi synergismofagandnainnacetylpquinoneiminematrixfordualsensingapplications |