研究目的
To establish efficient and reliable detection methods for Fe3+ ions, which are crucial for human health, by developing a new SGGT with CQD-modified gate as a low-cost, general-purpose sensor for Fe3+ ion detection.
研究成果
The CQD-functionalized SGGT-based sensor demonstrates ultra-high sensitivity and excellent selectivity for Fe3+ ion detection, with a detection limit of 1.0 × 10-16 M. This technology shows great potential in on-site analysis and real-time monitoring of body fluids, as well as health monitoring technologies.
研究不足
The technical and application constraints of the experiments, as well as potential areas for optimization, are not explicitly mentioned in the provided text.
1：Experimental Design and Method Selection:
The design involves modifying the surface of CQDs with special functional groups for ultra-high sensitivity and excellent selectivity in Fe3+ ion detection.
2：Sample Selection and Data Sources:
CQDs are synthesized and characterized using TEM, HRTEM, FTIR, and XPS.
3：List of Experimental Equipment and Materials:
Includes transmission electron microscope (TEM), high-resolution transmission electron microscope (HRTEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS).
4：Experimental Procedures and Operational Workflow:
CQDs are integrated into SGGTs to build a Fe3+ ion sensor. The device's response to Fe3+ ions is measured in PBS solution.
5：Data Analysis Methods:
The relationship between the concentration of Fe3+ ions and ΔVDirac is analyzed to realize quantitative detection.
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