Wen-ting WENG, Si-yu WANG, Jun-yang ZHUANG. Self-Assembled Nanocomposite Film of AgN In-Situ Grown on Polydopamine With Enhanced Fluorescence of CDs for Detection of Puerarin[J]. Spectroscopy and Spectral Analysis, 2021, 41(1): 168
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 1, 168 (2021)
Fig. 1. Schematic illustration of fabrication strategy of SAMs for detection of Pueraria
Fig. 2. (a) The fluorescence, UV-Vis absorption spectra and (b) Decay curve of FCDs solution
Fig. 3. (a) The XPS scanning spectrum, The high-resolution (b) C(1s ), (c) O(1s ), (d) N(1s ), and (e) S(2p ) XPS spectra of FCDs, (f) HRTEM images of the FCDs; Inset: the corresponding particles size distribution histograms of FCDs from 100 particles
Fig. 4. (a) The absorption and (b) fluorescence spectra of 1.0 g·L-1 DA solution in pH 8.5 Tris-HCl and the (c) cyclic voltammogram and (d) the AC impedance diagram of FTO/PDA
Fig. 5. (a) The absorption of FTO/PDA-AgN film and (b) fluorescence spectra of FTO/PDA-rGO/[PSS/PDDA]n/FCDs SAMs formed by immersion in AgNO3 in different time; (c) The SEM image and EDS of AgN
Fig. 6. The fluorescence spectra of FCD-adsorbed SAMs with (red) and without (black) AgN as a function of spacer (PDDA/PSS)n (n=1~5) bilayers
Fig. 7. Confocal fluorescence image of (a) FTO/PDA/PDDA/[PSS/PDDA]3/FCDs, (b) FTO/PDA-AgN/PDDA/[PSS/PDDA]3/FCDs and (c) the fluorescence decay curves
Fig. 8. (a) Fluorescence spectra of FTO/PDA-AgN/PDDA/[PSS/PDDA]3/FCDs SAMs for different concentrations of Pue; (b) Calibration curve of FTO/PDA/PDDA/[PSS/PDDA]3/FCDs (black) and FTO/PDA-AgN/PDDA/[PSS/PDDA]3/FCDs (red) SAMs
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