Calcium Hydroxyapatite HAP CAS 1306-06-5
Hydroxyapatite, wotchedwansohydroxylapatite(HA), ndi mchere wopangidwa mwachibadwa wa calcium apatite ndi formula Ca5 (PO4) 3 (OH), koma nthawi zambiri amalembedwa Ca10 (PO4) 6 (OH) 2 kutanthauza kuti crystal unit cell imakhala ndi zinthu ziwiri. Hydroxyapatite ndi hydroxyl endmember ya gulu lovuta la apatite. Koyerahydroxyapatite ufandi woyera. Ma apatites omwe amapezeka mwachilengedwe amathanso kukhala ndi mitundu yofiirira, yachikasu, kapena yobiriwira, yofananira ndi kusinthika kwa mano a fluorosis.
Kufikira 50% ndi voliyumu ndi 70% kulemera kwa fupa la munthu ndi mawonekedwe osinthidwa a hydroxyapatite, omwe amadziwika kuti fupa la mineral.Carbonated calcium-deficient hydroxyapatite ndiye mchere waukulu umene enamel ya mano ndi dentini amapangidwa. Makhiristo a Hydroxyapatite amapezekanso m'mawerengedwe ang'onoang'ono, mkati mwa pineal gland ndi zida zina, zomwe zimadziwika kuti corpora arenacea kapena 'mchenga waubongo'.
Kugwiritsa ntchito
1. Hydroxyapatite ilipo mu fupa ndi mano; fupa limapangidwa makamaka ndi makhiristo a HA omwe amalowetsedwa mu collagen matrix - 65 mpaka 70% ya mafupa ambiri ndi HA. Mofananamo HA ndi 70 mpaka 80% ya unyinji wa dentini ndi enamel m'mano. Mu enamel, matrix a HA amapangidwa ndi amelogenins ndi enamelins m'malo mwa collagen.
Hydroxylapatite madipoziti mu tendons mozungulira mfundo kumabweretsa zachipatala calcific tendinitis.
2. HA ikugwiritsidwa ntchito kwambiri kupangafupa Ankalumikiza zipangizokomanso prosthetics mano ndi kukonza. Ma implants ena, mwachitsanzo olowetsa m'chiuno, oyika mano ndi ma implants oyendetsa mafupa, amakutidwa ndi HA. Monga momwe kusungunuka kwachilengedwe kwa hydroxyapatite mu-vivo, pafupifupi 10 wt% pachaka, kumakhala kotsika kwambiri kuposa kukula kwa fupa lomwe langopangidwa kumene, pogwiritsidwa ntchito ngati cholowa m'malo mwa fupa, njira zikufunidwa kuti ziwonjezere kusungunuka kwake komanso motero kulimbikitsa bioactivity bwino.
3. Microcrystalline hydroxyapatite (MH) imagulitsidwa ngati "yomanga mafupa" yowonjezera ndi kuyamwa kwapamwamba poyerekeza ndi calcium.
Kufotokozera
Titha kupereka Hydroxyapatite mu mawonekedwe onse a ufa ndi granule.
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