Shape- and size-controlled superparamagnetic iron oxide nanoparticles using various reducing agents and their relaxometric properties by Xigo acorn area

Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes

“…[28][29][30][31] Superparamagnetism is limited to magnetite particles at the nanoscale, particularly below 25 nm. [32] This introduction of superparamagnetic properties, potentially offers the opportunity for spatially resolved healing with an alternating magnetic field (AMF). The nanoparticles respond with a physical particle rotation (Brownian relaxation) and/or an internal dipole inversion (Néel relaxation), dependent on particle size, magneto crystalline anisotropy and matrix viscosity.…”

Degradation of Acid Red 1 Catalyzed by Peroxidase Activity of Iron Oxide Nanoparticles and Detected by SERS

“…However, Profile Breit Wigner Fano (BWF) [18] can better describe this shift to low frequency. Nevertheless, the phonon mode (A 1g ) of γ-Fe 2 O 3 was not observed at 710 cm −1 , implying no phases coexist on the surface of MIONPs [19]. On the other hand, the peaks at 407, 1337, and 1478 cm −1 indicate the start of the oxidation to hematite by laser action.…”

“…Here, the width in the middle of the maximum is related to the smallest particle size [18]. The diffractogram depicts the initial crystallizing phase, which corresponds primarily to the magnetite phase [19]. UV-visible spectroscopy was performed to analyze the stability of magnetite nanoparticles.…”

NMR-Responsive Paramagnetic [M-EDTA] (M = Fe3+, Mn2+, Cu2+) Complexes to Differentiate T2-Distribution Signals of Crude Oil and Brine

“…All the chemicals were purchased from various commercial sources as follows: solution having salinity ~36.03 g L -1 was utilized as described in our recently published work 23,24 .…”