Graphene quantum dots functionalized with Bovine Serum Albumin for sensing of hypochlorite ions

We present a simple and facile strategy for the fabrication of BSA (Bovine Serum Albumin) functionalized Graphene Quantum Dots (BQDs) via the hydrothermal method. BQDs were synthesized using BSA and citric acid. Optical and morphological investigations were carried out to examine the structure BQDs....

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Bibliographic Details
Published in:Materials chemistry and physics 2021-11, Vol.273, p.125088, Article 125088
Main Authors: Sharma, Ekta, Vashisht, Devika, Thakur, Vaishali, Vashisht, Aseem, Mehta, S.K., Singh, Kulvinder
Format: Article
Language:English
Subjects:
Cattle
Citric acid
Graphene
Graphene Quantum Dots
Hydrothermal method
Hypochlorite
Optical sensing
Photoluminescence
Quantum dots
Serum albumin
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Summary:We present a simple and facile strategy for the fabrication of BSA (Bovine Serum Albumin) functionalized Graphene Quantum Dots (BQDs) via the hydrothermal method. BQDs were synthesized using BSA and citric acid. Optical and morphological investigations were carried out to examine the structure BQDs. The photoluminescence of synthesized BQDs was observed to decay upon the addition of hypochlorite ions. There is absence of any interference due to competitive ions. Limit of detection (LOD) comes out to be 35.39 μM for hypochlorite ions in aqueous system. [Display omitted] •Simple and environmental friendly synthesis by using hydrothermal method.•BSA functionalization on the surface of graphene QDs.•BQDs show excellent water solubility, stability and photoluminescence.•Synthesized BQDs are highly selective towards hypochlorite ion.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2021.125088