skip to main content
Idioma:

Highly fluorescent Zn-doped carbon dots as Fenton reaction-based bio-sensors: an integrative experimental-theoretical consideration

Xu, Quan ; Liu, Yao ; Su, Rigu ; Cai, Lulu ; Li, Bofan ; Zhang, Yingyuan ; Zhang, Linzhou ; Wang, Yajun ; Wang, Yan ; Li, Neng ; Gong, Xiao ; Gu, Zhipeng ; Chen, Yusheng ; Tan, Yanglan ; Dong, Chenbo ; Sreeprasad, Theruvakkattil Sreenivasan

Nanoscale, 2016-11, Vol.8 (41), p.17919-17927 [Periódico revisado por pares]

England

Texto completo disponível

Citações Citado por
  • Título:
    Highly fluorescent Zn-doped carbon dots as Fenton reaction-based bio-sensors: an integrative experimental-theoretical consideration
  • Autor: Xu, Quan ; Liu, Yao ; Su, Rigu ; Cai, Lulu ; Li, Bofan ; Zhang, Yingyuan ; Zhang, Linzhou ; Wang, Yajun ; Wang, Yan ; Li, Neng ; Gong, Xiao ; Gu, Zhipeng ; Chen, Yusheng ; Tan, Yanglan ; Dong, Chenbo ; Sreeprasad, Theruvakkattil Sreenivasan
  • Assuntos: Carbon ; Electronics ; Fluorescence ; Glucose ; Hydrogen peroxide ; Luminescence ; Nanoparticles ; Zinc
  • É parte de: Nanoscale, 2016-11, Vol.8 (41), p.17919-17927
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Heteroatom doped carbon dots (CDs), with high photoluminescence quantum yield (PLQY), are of keen interest in various applications such as chemical sensors, bio-imaging, electronics, and photovoltaics. Zinc, an important element assisting the electron-transfer process and an essential trace element for cells, is a promising metal dopant for CDs, which could potentially lead to multifunctional CDs. In this contribution, we report a single-step, high efficiency, hydrothermal method to synthesize Zn-doped carbon dots (Zn-CDs) with a superior PLQY. The PLQY and luminescence characteristic of Zn-CDs can be tuned by controlling the precursor ratio, and the surface oxidation in the CDs. Though a few studies have reported metal doped CDs with good PLQY, the as prepared Zn-Cds in the present method exhibited a PLQY up to 32.3%. To the best of our knowledge, there is no report regarding the facile preparation of single metal-doped CDs with a QY more than 30%. Another unique attribute of the Zn-CDs is the high monodispersity and the resultant highly robust excitation-independent luminescence that is stable over a broad range of pH values. Spectroscopic investigations indicated that the superior PLQY and luminescence of Zn-CDs are due to the heteroatom directed, oxidized carbon-based surface passivation. Furthermore, we developed a novel and sensitive biosensor for the detection of hydrogen peroxide and glucose leveraging the robust fluorescence properties of Zn-CDs. Under optimal conditions, Zn-CDs demonstrated high sensitivity and response to hydrogen peroxide and glucose over a wide range of concentrations, with a linear range of 10-80 μM and 5-100 μM, respectively, indicating their great potential as a fluorescent probe for chemical sensing.
  • Editor: England
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  7 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.