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  2. Titanium dioxide nanoparticle - Wikipedia

    en.wikipedia.org/wiki/Titanium_dioxide_nanoparticle

    Doping TiO 2 with certain atoms its photocatalytic activity could be enhanced. [8] In contrast, pigment-grade TiO 2 usually has a median particle size in the 200–300 nm range. [6]: 1–2 Because TiO 2 powders contain a range of sizes, they may have a fraction of nanoscale particles even if the average particle size is larger. [9]

  3. Titanium dioxide - Wikipedia

    en.wikipedia.org/wiki/Titanium_dioxide

    Titanium dioxide, also known as titanium(IV) oxide or titania / t aɪ ˈ t eɪ n i ə /, is the inorganic compound derived from titanium with the chemical formula TiO 2.When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. [4]

  4. Protein structure - Wikipedia

    en.wikipedia.org/wiki/Protein_structure

    The generation of a protein sequence is much easier than the determination of a protein structure. However, the structure of a protein gives much more insight in the function of the protein than its sequence. Therefore, a number of methods for the computational prediction of protein structure from its sequence have been developed. [39]

  5. Ribbon diagram - Wikipedia

    en.wikipedia.org/wiki/Ribbon_diagram

    Ribbon diagrams, also known as Richardson diagrams, are 3D schematic representations of protein structure and are one of the most common methods of protein depiction used today. The ribbon depicts the general course and organization of the protein backbone in 3D and serves as a visual framework for hanging details of the entire atomic structure ...

  6. Protein nanoparticles - Wikipedia

    en.wikipedia.org/wiki/Protein_nanoparticles

    Protein nanotechnology is a field of research that integrates the diverse physicochemical properties of proteins with nanoscale technology. This field assimilated into pharmaceutical research to give rise to a new classification of nanoparticles termed protein (or protein-based) nanoparticles (PNPs).

  7. List of biophysically important macromolecular crystal structures

    en.wikipedia.org/wiki/List_of_biophysically...

    Myoglobin sketch Alpha helix. 1958 – Myoglobin was the very first crystal structure of a protein molecule. [2] Myoglobin cradles an iron-containing heme group that reversibly binds oxygen for use in powering muscle fibers, and those first crystals were of myoglobin from the sperm whale, whose muscles need copious oxygen storage for deep dives.

  8. Sol–gel process - Wikipedia

    en.wikipedia.org/wiki/Sol–gel_process

    The basic structure or morphology of the solid phase can range anywhere from discrete colloidal particles to continuous chain-like polymer networks. [ 5 ] [ 6 ] The term colloid is used primarily to describe a broad range of solid-liquid (and/or liquid-liquid) mixtures, all of which contain distinct solid (and/or liquid) particles which are ...

  9. Rutile - Wikipedia

    en.wikipedia.org/wiki/Rutile

    Rutile is an oxide mineral composed of titanium dioxide (TiO 2), the most common natural form of TiO 2. Rarer polymorphs of TiO 2 are known, including anatase, akaogiite, and brookite. Rutile has one of the highest refractive indices at visible wavelengths of any known crystal and also exhibits a particularly large birefringence and high ...