Alireza Bagherpour

• Doctor of Philosophy
• University of Namur

Amorphous alumina is hard but brittle like all ceramic type materials which affects durability under impact or scratch. Here we show that alumina layers below 100 nm thickness when stacked with aluminum interlayers exhibit exceptional performances including toughness equal to 300 J.m⁻² determined by on chip nanomechanics. This is almost two orders...

The development of coatings with tunable performances is critical to meet a wide range of technological applications each one with different requirements. Using the plasma-enhanced chemical vapor deposition (PECVD) process, scientists can create hydrogenated amorphous carbon coatings doped with metal (a-C:H:Me) with a broad range of mechanical prop...

Numerous studies have been published in the past showing the presence of vein-like or columnar fracture shapes in thin film metallic glasses (TFMGs), while the reason behind the different features remains poorly understood. This study uncovers the reason behind this phenomenon in Cu-Zr TFMGs’ by considering experimental evidence and analysis. Oxida...

Carbon-based coatings have drawn attention in the last decades because of their eye-catching properties. The commercial interest of amor-phous carbon coatings is significant, as they are used in a large variety of applications as protec-tive tribological coating, radiation protection, electron field emitters, and biomedicine1,2. Hy-drogenated amorp...

In recent years, there is great attention on the L-Arginine (Arg) which is a unique, non-toxic, and biocompatible green material because it can be utilized as an agent for the functionalization then stabilization of magnetite [Fe3O4] nanoparticles (MNPs) against oxidation and aggregation during or after synthesis procedure. Our studies demonstrate...

L-Arginine (Arg or R) is a non-toxigenic, metabolically versatile and conditionally essential amino acid. Single-pot synthesis of Arg modified magnetic nanoparticles (RMNPs) was achieved using magnetite [Fe3O4] nanoparticles (MNPs) and binary function of Arg as a functional group and an alkali precipitator. This modification is supposed to offer se...

L-Arginine (Arg or R) is a non-toxigenic, metabolically versatile and conditionally essential amino acid. Single-pot synthesis of Arg modified magnetic nanoparticles (RMNPs) was achieved using magnetite [Fe3O4] nanoparticles (MNPs) and binary function of Arg as a functional group and an alkali precipitator. This modification is supposed to offer se...

In this paper, the effects of pearlitizing on the as cast and as heat-treated microstructures of austenitic manganese steel (named Hadfield steel) were evaluated. The samples with different contents of carbon and manganese were produced using induction furnace and precision casting method. The as-cast, annealed, and solution treated microstructural...

Due to the numerous biological applications of magnetite (Fe3O4) nanoparticles (MNPs), it is essential to identify the influence of these nanoparticles on basic biological processes. Therefore, in this research, the effect of MNPs on the structure and activity of hen egg white lysozyme (HEWL) (EC 3.2.1.1) as a model protein was examined using trypt...

Peptide amyloid aggregation is a cause of multiple human pathologies termed amyloid diseases. In this study, Arginine (Arg) capped magnetic nanoparticles (Fe3O4@Arg or AMNPs) were synthesized and the structural and morphological properties of as-obtained products were characterized by techniques such as XRD, SEM, VSM, FT-IR spectroscopy and Zeta po...

L-Arginine (Arg) a conditionally essential and one of the most metabolically versatile amino acids, has been found to be naturally nontoxic. Magnetic [Fe3O4] nanoparticles (MNPs), modified with Arg as the functional group, can provide biocompatibility, surface functionalization, and stabilization, thus providing many advantages and promoting effici...

In recent years, there has been a considerable interest in L-Arginine (Arg) which is a unique, non-toxic, and biocompatible green material since it can be utilized as an agent for the functionalization and subsequent stabilization of magnetite [Fe3O4] nanoparticles (MNPs) against oxidation and aggregation, during or after a synthesis procedure. Our...

The study of the interaction of nanoparticles (NPs) with proteins is of great importance due to its relevance in several fields including nano-biosafety, nano-bioscience, nano-biomedicine, and nano-biotechnology.

Due to the superiority of nanostructures to coarse-grained materials, nowadays, much attention has been paid to the use of nanoparticles in the medical field and Nano-biotechnology has grown dramatically. Magnetic nanoparticles with biocompatible coatings are only nanostructures that approved by the Food and Drug Administration for medical applicat...