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A nanoparticle or ultrafine particle is a particle of matter 1 to 100 nanometres (nm) in diameter. [ 1][ 2] The term is sometimes used for larger particles, up to 500 nm, or fibers and tubes that are less than 100 nm in only two directions. [ 2]: 394 At the lowest range, metal particles smaller than 1 nm are usually called atom clusters instead ...
Sodium nitrite is an inorganic compound with the chemical formula Na N O 2. It is a white to slightly yellowish crystalline powder that is very soluble in water and is hygroscopic. From an industrial perspective, it is the most important nitrite salt.
The structure of the molecule of urea is O=C(−NH 2) 2.The urea molecule is planar when in a solid crystal because of sp 2 hybridization of the N orbitals. [8] [9] It is non-planar with C 2 symmetry when in the gas phase [10] or in aqueous solution, [9] with C–N–H and H–N–H bond angles that are intermediate between the trigonal planar angle of 120° and the tetrahedral angle of 109.5°.
Medical uses of silver. Silver is added to some bandages for its antimicrobial effect, but evidence of its usefulness is mixed. [ 1] [ edit on Wikidata] The medical uses of silver include its use in wound dressings, creams, and as an antibiotic coating on medical devices. [ 2][ 3][ 4] Wound dressings containing silver sulfadiazine or silver ...
Green nanotechnology refers to the use of nanotechnology to enhance the environmental sustainability of processes producing negative externalities. It also refers to the use of the products of nanotechnology to enhance sustainability. It includes making green nano-products and using nano-products in support of sustainability. [citation needed]
Nanomedicine is the medical application of nanotechnology. [1] Nanomedicine ranges from the medical applications of nanomaterials and biological devices, to nanoelectronic biosensors, and even possible future applications of molecular nanotechnology such as biological machines. Current problems for nanomedicine involve understanding the issues ...
In a study of 10 healthy people, every person's platelet responsiveness, or clotting, went up after consuming drinks that contain erythritol, the main ingredient in many popular sweeteners.
Hydroxyapatite ( IMA name: hydroxylapatite[ 5]) (Hap, HAp, or HA) is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), often written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. [ 6] It is the hydroxyl endmember of the complex apatite group.
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