Alpha fourier transform infrared spectroscopy ftir spectrometer

All apparatuses employed to work up the reagents, nanoparticles, and QDs were made of Pyrex glass. FL spectra were measured using an Agilent Cary Eclipse FL spectrophotometer. Ultraviolet–visible (UV–Vis) absorption spectra were collected using a Shimadzu UV-1800 UV–Vis spectrometer. The pH of the prepared solutions was adjusted using a pH meter (Hotec, model PH-10C). The surface functional groups of the QDs as well as the interaction between QDs and analyte were confirmed using an ALPHA Fourier-transform infrared spectroscopy (FTIR) spectrometer (Bruker). A transmission electron microscope (TEM; Hitachi HT-7700) was employed to examine the surface morphology of the QDs. All hydrothermal reactions were conducted in a Channel precision oven. A vortex mixer (Model VTX-3000L Mixer Uzusio-LMS) was applied to mix the samples. A SQUID0000600 MPMS-XL7 vibrating sample magnetometer system was used to examine the magnetization saturation. A powder X-ray diffraction (XRD) instrument (000705 Bruker 2nd Gen) was applied to analyze the diffraction peak data of the IO QDs.

SPION^LA-HSA, SPION^LA-HSA-Ptx, and free Ptx were investigated with a Bruker ALPHA Fourier transform infrared spectroscopy (FTIR) spectrometer (Bruker Corporation, Billerica, MA, USA) in an attenuated total reflection mode with an excitation wavenumber in the mid-infrared region from 400 to 4,000 cm⁻¹ and a step size of 0.5 cm⁻¹.