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- W4311421421 endingPage "101283" @default.
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- W4311421421 abstract "We report the design and construction of enzyme-free sensor using platinum–nickel (PtNi) bimetallic alloy nanoparticle-conjugated nitrogen-doped graphene quantum dots (N-GQDs) for the highly specific in situ monitoring of dopamine (DA) secreted by glioma cells (C6). PtNi@N-GQDs nanocomposites were synthesized using a simple ultrasonication method. The resulting hybrid material was an excellent electrocatalyst for the redox activity of DA owing to the combined properties of PtNi alloys and highly conductive N-GQDs. The PtNi@N-GQDs-based sensing platform demonstrated substantial sensing ability with a detection range of 0.0125–952 μM, a sensitivity of 0.279 μA/μM/cm2, and a limit of detection of 0.005 μM (S/N = 3). The sensing performance of PtNi@N-GQDs was highly stable, selective, and reproducible. We successfully showed the practical application of the PtNi@N-GQDs sensor by quantifying DA in the blood serum and human urine samples. Finally, we used the PtNi@N-GQDs biocompatible platform to quantify DA released from C6 cells." @default.
- W4311421421 created "2022-12-26" @default.
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- W4311421421 date "2023-01-01" @default.
- W4311421421 modified "2023-10-18" @default.
- W4311421421 title "A biocompatible electrochemical sensor based on PtNi alloy nanoparticles-coupled N-GQDs for in situ monitoring of dopamine in glioma cells" @default.
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- W4311421421 doi "https://doi.org/10.1016/j.mtchem.2022.101283" @default.
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