A simple antigen-antibody reaction using ultrasmall FeCo nanoparticles

The antibody-antigen reaction: a visual observation.

Synthesis and stabilization of FeCo nanoparticles.

FeCo alloys are an important soft magnetic material because of their unique magnetic properties including large permeability and very high saturation magnetization. FeCo nanoparticles are ideal building blocks for nanostructured thin film or bulk magnetic materials1-3 and are also suitable for biomedical applications.4 However, synthesis of monodisperse FeCo nanoparticles remains a challenging ...

Factors affecting the antigen-antibody reaction.

Types of weak interactions According to quantum mechanics, all chemical bonds are based on electrostatic forces. A list of types of weak bonds is shown in table I, together with their strength (energy). Van der Waals forces are the weakest, but they are able to attract all kinds of molecules. Hydrogen or iondipole bonds require oppositely charged atoms. Hydrogen bonds are very important in aque...

Photothermally enhanced drug delivery by ultrasmall multifunctional FeCo/graphitic shell nanocrystals.

FeCo/graphitic carbon shell (FeCo/GC) nanocrystals (∼4-5 nm in diameter) with ultrahigh magnetization are synthesized, functionalized, and developed into multifunctional biocompatible materials. We demonstrate the ability of this material to serve as an integrated system for combined drug delivery, near-infrared (NIR) photothermal therapy, and magnetic resonance imaging (MRI) in vitro. We show ...

Tuning Carbon Content and Morphology of FeCo/Graphitic Carbon CoreShell Nanoparticles using a SaltMatrixAssisted CVD Process

Among various magnetic nanoparticles that have been studied for potential biomedical applications, FeCo nanoparticles are promising candidates because of their high saturation magnetization and high Curie temperature. [ 3–5 ] However, the ease of oxidation, dissolution in acidic environments, and potential toxicity of these materials in their native state restrict their use in biomedical applic...