研究目的
Investigating the defect-induced fluorescence of silica nanoparticles for bioimaging applications.
研究成果
The synthesized SNPs exhibited strong blue photoluminescence originating from the dioxasilyrane (=Si(O2)) and silylene (=Si:) defect centers, successfully utilized for bioimaging applications without cytotoxicity.
研究不足
The mechanism of defect formation remains unclear and the quantum yield is poor.
1：Experimental Design and Method Selection:
Hydrothermal synthesis of fluorescent SNPs using tetraethyl orthosilicate (TEOS) and (3-aminopropyl)trimethoxysilane (APTMS).
2：Sample Selection and Data Sources:
SNPs synthesized with different volume ratios of TEOS:APTMS at 200 °C.
3：List of Experimental Equipment and Materials:
TEM, XRD, ATR-FTIR spectroscopy, XPS, TCSPC, and phosphorescence spectroscopy.
4：Experimental Procedures and Operational Workflow:
Synthesis of SNPs, characterization, and application in bioimaging.
5：Data Analysis Methods:
Analysis of optical properties, cytotoxicity, and cell imaging.
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JEM-2100F
JEM-2100F
JEOL
Transmission electron microscopy observation
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FP-8500
FP-8500
Jasco
Fluorometer for PL spectra
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