Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 65, Issue 5, Pages 4387-4400Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.2c00031
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- Japan Society for the Promotion of Science [S-14149]
- AGH University of Science and Technology [16.16.170.654]
- Wroclaw University of Science and Technology
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This study investigates the effects of copper oxidation state, interface nature, positional isomerism, and incubation time on the functionalization of copper oxide nanostructures. The results show that these factors have significant impact on the adsorption on the surface of copper oxide NSs.
The aim of this study was to investigate how the oxidation state of copper (Cu(I) vs Cu(II)), the nature of the interface (solid/aqueous vs solid/air), positional isomerism, and incubation time affect the functionalization of the surface of copper oxide nanostructures by [(butylamino)(pyridine) methyl]-phenylphosphinic acid (PyPA). For this purpose, 2-, 3-, and 4-isomers of PyPA and the nanostructures were synthesized. The nanostructure were characterized by UV-visible spectroscopy (UV-vis), scanning electron microscopy (SEM), Raman spectroscopy (RS), and X-ray diffraction (XRD) analysis, which proved the formation of spherical Cu2O nanoparticles (Cu(2)ONPs; 1500-600 nm) and leaf-like CuO nanostructures (CuONSs; 80-180/400-700 nm, width/length). PyPA isomers were deposited on the surface of NSs, and adsorption was investigated by surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS). The changes of adsorption on the surface of copper oxide NSs caused by the above-mentioned factors were described and the enhancement factor on this substrate was calculated.
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