Surfactant-free tantalum oxide nanoparticles: synthesis, colloidal properties, and application as a contrast agent for computed tomography

Simple procedures for Ta₂O₅ nanoparticle (NP) synthesis and surfactant-free stable hydrosol preparation were developed in order to investigate the colloidal properties, cytotoxicity, and CT contrast performance of uncoated Ta₂O₅ NPs.