Aqueous platinum nanoparticles solution for the detection of pyridine derivatives of aminophosphinic acid. Influence of positional isomerism

作者：Proniewicz Edyta^*; Gralec Barbara; Olszewski Tomasz K; Boduszek Bogdan

来源：Applied Surface Science, 2017, 425: 941-947.

DOI：10.1016/j.apsusc.2017.07.110

• Platinum nanoparticles
• PtNPs
• Surface-enhanced Raman spectroscopy
• SERS
• Pyridine alpha-aminophosphinic acid isomers

Unsupported platinum nanoparticles (PtNPs) (similar to 12 nm in diameter) were synthetized by the polyol method and ultraviolet-visible spectroscopy (UV-vis), scanning electron microscope (SEM), and X-ray powder diffraction (XRD) characteristic of their agglomerates were examined. Then, three pyridine alpha-aminophosphinic acid isomers (alpha-,beta-, and gamma-) were synthetized and assembled on the surface of PtNPs. Differences in adsorption and thus, in the spectral response resulting from positional isomerism, were checked by surface-enhanced Raman scattering (SERS) at 785 nm excitation wavelength. The manner of interaction of the investigated isomers with PtNPs were discussed and compared. General conclusions were drowned.

• 出版日期2017-12-15