Introduction: Apoptosis is a major consequence of ionizing radiation in proliferative tissues and quantification of the apoptotic cells could be helpful for noninvasive assessment and estimation of the radiation absorbed dose. Annexin V conjugated with super paramagnetic iron oxide nanoparticles (ANX-SPIO) is a biological probe for detection of apoptotic cells using magnetic resonance imaging. ...

In this work, structural and magnetic properties of LaMnO3+δ compound prepared by citrate precursor method and annealed in presence of oxygen are investigated. The structural characterization of LaMnO3+δ by X-ray powder diffraction and using X’pert package and Fullprof program is evidence for a rhombohedral structure (R-3c space group) confirmed by FTIR measurement. The magnetic measurements sh...

Cationic polymeric nanoparticles have great potential for developing drug delivery systemswith limited side effects for tumor medication. The goal of this research is investigation ofcationic dextran-spermine polymer (DS) efficacy for improvement of hydrophilic drug deliveryto negatively charged cancerous cells. Capecitabine (as a hydrophilic antineoplastic drug) wasloaded into the magnetic dex...

electron paramagnetic resonance (epr) spectroscopy, also known as electron spin resonance(esr) especially among physicists, is a strong and versatile spectroscopic method forinvestigation of paramagnetic systems, i.e. systems like free radicals and most transition metalions, which have unpaired electrons. the sensitivity and selectivity of epr are notable andintriguing as compared to other spec...

Abstract Hydrogels had gained considerable importance in drug delivery systems. Polyacrylic acid/acrylamide (AAc/AAm) and polyacrylic doped with magnetite (AAc/AAm)Fe 3 O 4 hydrogels have been prepared by ɣ -radiations characterized Fourier transform infrared spectra (IR), X-ray diffractions (XRD), scanning electron microscope (SEM) transmittance (TEM). The morphology the particle size were det...

The direct CH4 conversion (DMC) to methanol is a challenging topic. In this study, the Ru/SZ (sulfated zirconia) single-atom catalysts (SACs) were synthesized and utilized DMC under mild conditions (70 °C). yield over SACs (18.32 µmol, TOF ≥ 80 h–1) significantly exceeded sum of yields SZ (0.67 µmol) Ru/ZrO2 (0.29 µmol), indicating that new active center was formed on SACs. Combined with result...