{"title":"Synthesis of Graphene Quantum Dots (GQDs) from Paddy Straw for Bilirubin Detection","authors":"Isha, Aneesha, Mohan Singh Mehata","doi":"10.1007/s11468-024-02396-0","DOIUrl":null,"url":null,"abstract":"<p>This work reports the synthesis of blue-emitting graphene quantum dots (GQDs) with an average diameter of 3.8 ± 0.5 nm from paddy straw, a sustainable biomass resource, via hydrothermal synthesis. These GQDs demonstrate excellent performance in bilirubin (BR) detection. The GQD photoluminescence (PL) intensity exhibits a proportional decrease with increasing BR concentration, indicating efficient quenching. The limit of detection for BR reaches a low value of 87.9 nM, highlighting the high sensitivity and selectivity of the GQD-based sensor. The observed quenching likely arises from a combined mechanism involving static quenching due to GQD-BR complex formation, inner filter effect (IFE), and Förster resonance energy transfer facilitated by spectral overlap.</p>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s11468-024-02396-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This work reports the synthesis of blue-emitting graphene quantum dots (GQDs) with an average diameter of 3.8 ± 0.5 nm from paddy straw, a sustainable biomass resource, via hydrothermal synthesis. These GQDs demonstrate excellent performance in bilirubin (BR) detection. The GQD photoluminescence (PL) intensity exhibits a proportional decrease with increasing BR concentration, indicating efficient quenching. The limit of detection for BR reaches a low value of 87.9 nM, highlighting the high sensitivity and selectivity of the GQD-based sensor. The observed quenching likely arises from a combined mechanism involving static quenching due to GQD-BR complex formation, inner filter effect (IFE), and Förster resonance energy transfer facilitated by spectral overlap.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
