ABSTRACT A simple co-precipitation reaction between Ln3+ cations (Ln = lanthanide) and phosphate ions in the presence of polyethylene glycol (PEG), including post-treatment under hydrothermal conditions, leads to the formation of Tb3+-doped LaPO4 crystalline nanorods. The nanoparticles obtained can be successfully coated with amorphous and porous silica, forming core/shell-type nanorods. Both p...

Ferrite nanoparticles with nominal composition Me0.5Fe2.5O4 (Me = Co, Fe, Ni or Mn) have been successfully prepared by the wet chemical method. The obtained particles have a mean diameter of 11-16 ± 2 nm and were modified to improve their magnetic properties and chemical activity. The surface of the pristine nanoparticles was functionalized afterwards with -COOH and -NH2 groups to obtain a bioa...

Chitosan as a natural biopolymer has been produced to be the important host for preparation of metallic nanoparticles (MNPs) because its excellent characteristics like:- good stabilizing and capping ability, biocompatibility, biodegradability, eco-friendly non-toxicity properties. can play very role synthesis nanoparticles, chitosan is cationic polymer. It attracts metal ions reduces them also ...

Statement of Purpose: Polymeric nanoparticles have been widely studied in biomedical fields such as the drug delivery system (DDS), medical diagnosis, and bioimaging. For the long-term drug delivery system, stability for hydrolysis, stealth property for inhibition of unspecific protein adsorption, and surface functionality for immobilization of specific molecules to target tissues are required....

Introduction: Further development of magnetic-based detection techniques could be significant use in increasing the sensitivity and quantification hepatitis B virus (HBV) infection. The present work addresses fabrication characterization a new bio-nano composite based on immobilization goat anti-HBsAg antibody modified core-shell magnetic nanoparticles (NPs) by (3-aminopropyl) triethoxysilane (...

Near infrared (NIR)-emitting persistent luminescent nanoparticles have been developed as potential agents for bioimaging. However, synthesizing uniform nanoparticles with long afterglow for long-term imaging is lacking. Here, we demonstrated the synthesis of spinel structured Zn3Ga2Ge2O10:Cr3+ (ZGGO:Cr3+) and Zn3Ga2Ge2O10:Cr3+,Eu3+ (ZGGO:Cr3+,Eu3+) nanoparticles by a sol-gel method in combinati...

Magnetic poly (D,L-lactide-co-glycolide) (PLGA)/lipid nanoparticles (MPLs) were fabricated from PLGA, L-α-phosphatidylethanolamine (DOPE), 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-amino (polyethylene glycol) (DSPE-PEG-NH2), and magnetic nanoparticles (NPs), and then conjugated to trans-activating transcriptor (TAT) peptide. The TAT-MPLs were designed to target the brain by magnetic gui...

Dual-modality imaging, using Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) simultaneously, is a powerful tool to gain valuable information correlating structure with function in biomedicine. The advantage of this dual approach is that the strengths of one modality can balance the weaknesses of the other. However, success of this technique requires developing imaging pr...

Novel hybrid magnetic hydrogels have demonstrated their influence in several areas, particularly in biomedical science where these innovative materials are showing interesting applications for controlled drug delivery. A hybrid hydrogel with CoFe2O4 nanoparticles (NPs) as cross-linker agents of carboxymethylcellulose (CMC) polymer was obtained with the aim of testing it as a system for controll...