Proniewicz Edyta, Gralec Barbara, Ozaki Yukihiro
Faculty of Foundry Engineering, AGH University of Science and Technology, Krakow, Poland.
School of Biological and Environmental Sciences, Kwansei Gakuin University 1, Sanda, Hyogo, Japan.
J Biomed Mater Res B Appl Biomater. 2023 Jun;111(6):1197-1206. doi: 10.1002/jbm.b.35225. Epub 2023 Jan 30.
Here, surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) were used to characterize the selective adsorption of N-substituted 4-[(NH-R)(phosphono)-S-methyl]phenylboronic acids on the surface of platinum nanoparticles (PtNPs) from an aqueous solution and from air. The nature of the interaction of the studied compounds with the PtNPs/H O and PtNPs/air interfaces was discussed and compared. For this purpose, 4-[(N-anilino)(phosphono)-S-methyl]phenylboronic acid (1-PBA-PA) and its two analogs (2-PBA-PA and bis{1-PBA-PA}) as well as the PtNPs were synthesized in surfactant/ion-free solution via a synthetic route that allows control of the size and morphology of the NPs. The positively charged PtNPs with a size of ~12 nm were characterized by ultraviolet-visible spectroscopy (UV-Vis), dynamic light scattering (DLS), scanning electron microscopy (SEM), and X-ray powder diffraction (XRD).
在此，利用表面增强拉曼散射（SERS）和针尖增强拉曼散射（TERS）来表征N-取代的4-[(NH-R)(膦酰基)-S-甲基]苯硼酸从水溶液和空气中在铂纳米颗粒（PtNPs）表面的选择性吸附。讨论并比较了所研究化合物与PtNPs/H₂O和PtNPs/空气界面相互作用的性质。为此，通过一种能够控制纳米颗粒尺寸和形态的合成路线，在无表面活性剂/离子的溶液中合成了4-[(N-苯胺基)(膦酰基)-S-甲基]苯硼酸（1-PBA-PA）及其两种类似物（2-PBA-PA和双{1-PBA-PA}）以及PtNPs。通过紫外可见光谱（UV-Vis）、动态光散射（DLS）、扫描电子显微镜（SEM）和X射线粉末衍射（XRD）对尺寸约为12 nm的带正电PtNPs进行了表征。
