Video Experimental Relacionado

Updated: Jul 12, 2026

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells
10:23

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells

Published on: December 13, 2016

Síntesis y estructura de un nanocompuesto bioinorgánico de hierro (III) sulfuro-ferritina

T Douglas, D P Dickson, S Betteridge

    Science (New York, N.Y.)
    |July 7, 1995
    PubMed
    Resumen

    Los investigadores sintetizaron nanopartículas amorfas de sulfuro de hierro dentro de la ferritina. El estudio caracterizó los estados de oxidación del hierro y las propiedades estructurales de estos nanocompuestos biocompatibles para potenciales aplicaciones de ingeniería a nanoescala.

    Más Videos Relacionados

    Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition10:45

    Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

    Published on: February 5, 2022

    Synthesis of Functionalized Magnetic Nanoparticles, Their Conjugation with the Siderophore Feroxamine and its Evaluation for Bacteria Detection15:03

    Synthesis of Functionalized Magnetic Nanoparticles, Their Conjugation with the Siderophore Feroxamine and its Evaluation for Bacteria Detection

    Published on: June 16, 2020

    Videos de Conceptos Relacionados

    Colors and Magnetism03:02

    Colors and Magnetism

    Color in Coordination Complexes
    When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
    Valence Bond Theory02:42

    Valence Bond Theory

    Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
    Formation of Complex Ions03:45

    Formation of Complex Ions

    A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
    Structural Isomerism02:34

    Structural Isomerism

    Isomerism in Complexes
    Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
    Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...