Academic Journal
Na+ induced improved fluorescence of carbon nanoparticles from human hair: an exclusive sensing platform for Ag.
| Title: | Na+ induced improved fluorescence of carbon nanoparticles from human hair: an exclusive sensing platform for Ag. |
|---|---|
| Authors: | Sharma P; Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur, 303007, India., Sahu M; Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur, 303007, India., Ganguly M; Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur, 303007, India. mainak.ganguly@jaipur.manipal.edu. |
| Source: | Scientific reports [Sci Rep] 2026 Apr 09; Vol. 16 (1). Date of Electronic Publication: 2026 Apr 09. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: London : Nature Publishing Group, copyright 2011- |
| MeSH Terms: | Silver*/analysis , Silver*/chemistry , Carbon*/chemistry , Hair*/chemistry , Sodium*/chemistry , Nanoparticles*/chemistry, Silver Compounds/chemistry ; Oxides/chemistry ; Humans ; Fluorescence ; Spectrometry, Fluorescence ; Static Electricity |
| Abstract: | Fluorescent carbon particles, originating from biological waste, are a recent trend in research. We synthesized novel emissive carbon nanoparticles (15 nm) from human hair via a modified hydrothermal method. The emissive behaviour was further intensified with the interaction of Na+ with the heteroatom-doped carbon nanoparticles. Thus, turn-on fluorescence was made possible for Na+ (linear in the range from 10− 2 M to 10− 5 M and limit of quantification (LOQ) was 0.0018 M). The Na+ modified the electrostatic behaviour and exhibited natural crystallization confinement effect, resulting in fluorescence enhancement. Ag+ quenched the fluorescence selectively with the formation of Ag2O in the reaction mixture, and an Ag+ sensor was designed (linear detection range to be 5 × 10− 7 M to 10− 3, while LOQ was 0.0003 M). Non-radiative energy transfer from fluorophore to Ag2O was pivotal for Ag+ sensing. A non-expensive, green, and circular economic approach was reported here for environmental monitoring. |
| Competing Interests: | Declarations. Consent to participate and ethical approval: All the participants checked the paper and consented to the submission. They are the authors of the manuscript. No analysis of the human body was done through our experiment. Consent to publish: All the participants consented to publish. Competing interests: The authors declare no competing interests. |
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| Contributed Indexing: | Keywords: Electrostatic; Human hair; Silver oxide; Sodium; Sustainable water management |
| Substance Nomenclature: | 3M4G523W1G (Silver) 7440-44-0 (Carbon) 9NEZ333N27 (Sodium) 0 (Silver Compounds) 0 (Oxides) |
| Entry Date(s): | Date Created: 20260409 Date Completed: 20260628 Latest Revision: 20260628 |
| Update Code: | 20260628 |
| PubMed Central ID: | PMC13212891 |
| DOI: | 10.1038/s41598-026-44901-x |
| PMID: | 41957058 |
| Database: | MEDLINE |
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