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A novel optical probe based on d ‐penicillamine‐functionalized graphene quantum dots: Preparation and application as signal amplification element to minoring of ions in human biofluid
Author(s) -
PashazadehPanahi Paria,
Hasanzadeh Mohammad,
EivazzadehKeihan Reza
Publication year - 2020
Publication title -
journal of molecular recognition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.401
H-Index - 79
eISSN - 1099-1352
pISSN - 0952-3499
DOI - 10.1002/jmr.2828
Subject(s) - fluorescence , quantum dot , graphene , metal ions in aqueous solution , aqueous solution , ion , chemistry , materials science , analytical chemistry (journal) , nanotechnology , chromatography , optics , organic chemistry , physics
In this study, d ‐penicillamine‐functionalized graphene quantum dots (DPA‐GQD) has been synthesized, which significantly increases the fluorescence intensity of GQD. We used this simple fluorescent probe for metal ions detection in human plasma samples. Designed DPA‐GQD respond to Hg 2+ , Cu 2+ , Au 2+ , Ag + , Co 2+ , Zn 2+ , and Pb 2+ with high sensitivity. The fluorescence intensity of this probe decreased significantly in the presence of metal ions such as, Hg 2+ , Cu 2+ , Au 2+ , Ag + , Co 2+ , Zn 2+ , and Pb 2+ . In this work, a promising probe for ions monitoring was introduced. Moreover, DPA‐GQD probe has been tested in plasma samples. The functionalized DPA‐GQDs exhibits great promise as an alternative to previous fluorescent probes for bio‐labeling, sensing, and other biomedical applications in aqueous solution.