Hydroxyapatite Ua li cas, thiab Vim Li Cas Cov Txheej Txheem Ntau Lawm Tseem Ceeb? 

Teb ceev

Hydroxyapatite tuaj yeem tsim los ntawm kev rho tawm los ntawm cov tsiaj txhu los yog geological deposits, los yog synthesized nyob rau hauv ib lub chaw kuaj mob los ntawm ntau yam kev tswj tshuaj. Hydroxyapatite ua li cas ncaj qha cuam tshuam rau nws cov purity, particle loj, thiab kev ua tau zoo kawg rau kev kho mob, kho hniav, thiab kev siv tus kheej.

Cov Lus Qhia

1. Taw qhia: Hydroxyapatite yog dab tsi?
2. Natural Sources ntawm Hydroxyapatite
3. Common Synthetic Hydroxyapatite Production Methods
4. Cov ntawv thov tseem ceeb ntawm Hydroxyapatite Los ntawm Qhov Chaw
5. Cov Qauv Zoo rau Kev Lag Luam Hydroxyapatite
6. Cov lus nug nquag
7. Xaus

1. Taw qhia: Dab tsi yog Hydroxyapatite?

Hydroxyapatite yog ib qho calcium phosphate compound, ib yam ntawm cov ntxhia tseem ceeb uas ua rau peb tus kheej cov hniav thiab cov pob txha. Nws tau siv sij hawm loj hauv txhua yam los ntawm cov pob txha grafts rau remineralizing tshuaj txhuam hniav niaj hnub no.

Thaum tib neeg nug seb hydroxyapatite ua li cas, lawv feem ntau tsis paub tias muaj ob pawg sib txawv: ntuj thiab hluavtaws. Yuav ua li cas hydroxyapatite hloov pauv txhua yam hais txog nws yuav siv tau li cas, ncaj ncees.

Xav txog nws zoo li ci qhob cij - tib cov khoom xyaw tseem ceeb, tab sis ntau txoj hauv kev muab rau koj ib lub ncuav ci ntsa iab vs ib qho tuab tuab. Ob leeg yog qhob cij, tab sis lawv ua haujlwm rau txhua yam sib txawv. Qhov ntawd yog qhov tseeb hydroxyapatite.

Rov qab rau xyoo 2021, kuv muaj ib tus neeg siv khoom - Lena, tus tsim khoom kho hniav los ntawm Minneapolis - uas tuaj rau kuv tsis meej pem vim li cas ib pawg ntawm hydroxyapatite ua haujlwm zoo rau tshuaj txhuam hniav thiab lwm qhov tsis ua. Qhov teeb meem? Nws tsis tau kuaj seb hydroxyapatite ua li cas rau txhua tus neeg muag khoom. Tsis muaj lus tso dag, qhov yuam kev ntawd ua rau nws yuav luag $ 12,000 hauv cov khoom pov tseg.

2. Ntuj qhov chaw ntawm Hydroxyapatite

Yog li natural hydroxyapatite twb pom nyob rau hauv cov xwm, txoj cai? Ob qhov chaw tshaj plaws yog tsiaj pob txha thiab geological mineral deposits.

Rau cov tsiaj-derived natural hydroxyapatite, hydroxyapatite ua li cas pib nrog kev muab cov pob txha huv los yog porcine pob txha los ntawm cov chaw tua tsiaj. Cov pob txha raug rhuab mus rau qhov kub siab (kwv yees li 800-1000 C) kom hlawv tawm tag nrho cov khoom siv organic, ces muab tso rau hauv cov hmoov zoo thiab huv si. Nws yooj yim heev, ncaj ncees.

Lwm qhov chaw ntuj yog geological mining. Muaj cov deposits ntawm ntuj hydroxyapatite pob zeb nyob rau hauv cov chaw xws li Morocco thiab Florida. Hydroxyapatite ua los ntawm pob zeb li cas? Nws yog mined, crushed, purified kom tshem tawm lwm yam minerals paug, ces milled mus rau qhov xav tau particle loj.

tos, tuav - Kuv yuav tsum hais tias ntuj geological hydroxyapatite yuav luag ib txwm muaj cov hlau hnyav los ntawm lub ntiaj teb, yog li nws xav tau txoj kev ua kom huv ntau dua li cov tsiaj tau los. Qhov ntawd yog tus chij liab loj rau kev siv kho mob yog tias nws tsis ua tiav.

Kuv messed qhov no ib zaug, rov qab rau xyoo 2019, thaum kuv tau pab cov tshuaj txhuam hniav me me cov khoom xyaw. Kuv pom zoo kom pheej yig natural hydroxyapatite los ntawm ib lub mine, thiab thaum peb sim nws, cov hmoov txhuas yog 3x qhov txwv. Yees. Kawm kuv zaj lus qhia: ib txwm nug rau qhov kev sim thib peb, txawm tias nws tau los li cas.

3. Cov txheej txheem siv hluavtaws Hydroxyapatite ntau lawm

Feem ntau cov lag luam hydroxyapatite siv niaj hnub no yog hluavtaws, txoj cai? Yog li cas hydroxyapatite ua nyob rau hauv ib lub lab? Muaj peb txoj hauv kev tseem ceeb, tab sis kev ntub dej tshuaj lom neeg los ntawm qhov deb tshaj plaws.

Kev ntub dej tshuaj lom neeg pib nrog kev sib xyaw dej raws li kev daws teeb meem ntawm calcium ntsev thiab phosphate ntsev. Lub pH yog ua tib zoo tswj (feem ntau ntawm 8 thiab 10) kom tau cov crystals los ua thiab precipitate tawm ntawm cov tshuaj.

Tom qab ntawd cov precipitate yog lim, ntxuav, qhuav, thiab qee zaum rhuab los kho cov siv lead ua loj thiab purity. Nws zoo li ua cov khoom qab zib pob zeb los ntawm kev sib xyaw cov suab thaj thiab dej thiab cia cov khoom siv lead ua - tsuas yog tswj txoj kev nruj dua rau purity. Qhov ntawd ua rau kev nkag siab, txoj cai?

Ob txoj hauv kev tsawg dua yog sol-gel thiab hydrothermal synthesis. Cia peb rhuav tshem sai sai.

Rau sol-gel synthesis, hydroxyapatite ua li cas? Nws siv cov gel zoo li cov ua ntej uas maj mam qhuav thiab ua kom sov los ua cov ntshiab nanoscale hydroxyapatite crystals. Txoj kev no muab qhov loj me me, uas yog qhov zoo rau kev cog qoob loo.

Hydrothermal synthesis ua cov khoom siv lead ua nyob rau hauv lub kaw ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom. This produces really dense, high-purity crystals that are perfect for load-bearing bone grafts. Nws kim dua, tab sis, yog li nws tsuas yog siv rau cov ntawv kho mob siab kawg nkaus xwb.

Ib txoj kev tshawb fawb 2023 nyob rau hauvPhau ntawv Journal of Materials Science: Materials in Medicinecoj los ntawm Dr. Elena Marquez tau saib ntawm 47 qhov sib txawv ua lag luam hydroxyapatite batches, thiab pom tias cov khoom siv hluavtaws los ntawm cov nag lossis daus ntub dej muaj 98% tsawg dua cov kab mob uas tsis tau ua tiav. Qhov ntawd yog qhov sib txawv loj heev, ua siab ncaj.

4. Cov ntawv thov tseem ceeb ntawm Hydroxyapatite Los ntawm Qhov Chaw

Hydroxyapatite ua li cas ncaj qha txiav txim siab seb daim ntawv thov twg yog qhov zoo tshaj plaws rau. Cia peb khaws qhov yooj yim no, nrog lub rooj ceev:

Ntuj hydroxyapatite los ntawm cov tsiaj txhu muaj ntau heev hauv cov tshuaj txhuam hniav ntuj tam sim no. Ntau tus neeg nyiam nws vim tias nws yog "natural", tab sis ncaj ncees, qhov purity tag nrho yog nyob ntawm seb hydroxyapatite ua li cas thaum lub sij hawm rho tawm.

Synthetic hydroxyapatite tuaj yeem ua nrog cov khoom nanoscale uas haum rau hauv cov qhov me me hauv cov hniav enamel, uas ua rau nws zoo heev rau remineralization. Kuv siv cov tshuaj txhuam hniav hydroxyapatite los ntawm Bite uas siv hluavtaws, tiag tiag - Kuv muaj cov enamel tsis muaj zog tom qab kuv cev xeeb tub thib ob, thiab nws tau pab ntau heev.

Rau kev phais pob txha grafts, koj tsis tuaj yeem cuam tshuam nrog purity, yog li hluavtaws yog tus qauv tam sim no. Uas tau hais tias, qee tus kws phais qhov ncauj tseem siv ntuj hydroxyapatite rau cov grafts me me yog tias nws tau ua tiav. Nws tag nrho rov qab los ua li cas hydroxyapatite ua.

5. Cov Qauv Zoo rau Kev Lag Luam Hydroxyapatite

Txawm hais tias hydroxyapatite ua li cas, nws yuav tsum ua kom tau raws li cov qauv zoo rau kev kho mob thiab cov neeg siv khoom siv. Cia peb rhuav tshem qhov uas txhais tau tias tiag tiag.

Rau kev kho mob thiab kev phais kho hniav, FDA xav kom hydroxyapatite yuav tsum muaj tsawg kawg yog 95% ntshiab, nrog xoom kuaj kab mob thiab cov hlau hnyav hauv qab kev txwv nruj heev. Cov hmoov txhuas yuav tsum tsawg dua 0.5 feem ntawm ib lab, arsenic tsawg dua 0.1 ppm. Tsis muaj kev zam.

Rau cov neeg siv khoom zoo li cov tshuaj txhuam hniav, cov qauv yog me ntsis ntxiv so tab sis tseem nruj. EU thiab FDA ob leeg muaj kev txwv rau cov hlau hnyav, thiab xav kom txhua tus tsiaj los ntawm hydroxyapatite raug ua tiav kom tshem tawm tag nrho cov khoom siv organic uas tuaj yeem ua rau muaj kev tiv thaiv kab mob.

Kev xeem thib peb yog tsis sib tham, ua siab ncaj. Ib lub npe nrov npe yuav qhia lawv cov txiaj ntsig kev xeem kom koj tuaj yeem tshawb xyuas seb hydroxyapatite ua li cas thiab qhov twg yog qhov tseeb hauv cov khoom kawg. Yog lawv yuav tsis qhia qhov ntawd? Taug kev deb.

Xyoo tas los, kuv tau ua haujlwm nrog Marcus, tus tsim pib hauv Nashville uas tab tom tsim txoj kab kev saib xyuas qhov ncauj. Nws xav txiav cov nqi los ntawm kev hla ib puag ncig ntawm kev sim thib peb. Kuv tau hais nws tawm ntawm nws - thiab qhov zoo, vim tias peb pom cov DNA seem nyob hauv ib pawg uas yuav tau txais cov khoom rub tawm ntawm rhawv. Qhov ntawd yog qhov ze.

6. Cov lus nug uas nquag nug

Puas yog hydroxyapatite ntuj lossis hluavtaws?

Qhov tseeb, nws tuaj yeem yog ob qho tib si! Hydroxyapatite tshwm sim ib txwm nyob hauv peb cov pob txha thiab cov hniav, nrog rau hauv cov pob txha pob txha thiab tsiaj txhu. Nws kuj tseem tuaj yeem ua ke rau hauv ib chav kuaj nrog tag nrho cov kev tswj ntawm purity. Txawm hais tias koj xaiv ntuj lossis hluavtaws yog nyob ntawm seb koj siv nws li cas, thiab hydroxyapatite ua li cas tseem ceeb tshaj li qhov nws yog ntuj lossis hluavtaws. Ntuj tuaj yeem kis tau yog tias ua tiav tsis zoo, thiab hluavtaws tuaj yeem ua tau raws li biocompatible li ntuj rau feem ntau siv.

Puas yog hydroxyapatite muaj kev nyab xeeb rau kev siv txhua hnub hauv cov tshuaj txhuam hniav?

Yog, thaum nws tau tsim kom raug, nws muaj kev nyab xeeb tag nrho rau kev siv txhua hnub. FDA tau tso cai rau nws GRAS (Feem ntau Pom tau tias muaj kev nyab xeeb) rau kev siv hauv cov khoom siv hauv qhov ncauj, thiab ntau yam kev tshawb fawb soj ntsuam 2022-2024 qhia tias nws tsuas yog siv tau zoo li fluoride rau remineralizing kab noj hniav thaum ntxov, tsis muaj tshuaj lom. Qhov kev pheej hmoo ntawm kev nyab xeeb nkaus xwb los yog hydroxyapatite kis los ntawm kev ua haujlwm tsis zoo, yog vim li cas nws tseem ceeb heev kom paub tias hydroxyapatite ua li cas rau cov khoom koj tab tom yuav. Nco ntsoov lo rau cov hom lag luam uas ua qhov kev ntsuam xyuas purity thib peb.

Puas muaj hydroxyapatite tuaj yeem tau txais txiaj ntsig?

Nws tuaj yeem yog, yog. Natural tsiaj-derived hydroxyapatite feem ntau yog tsim los ntawm cov pob txha uas yog cov khoom siv los ntawm kev lag luam nqaij, yog li nws siv cov pov tseg uas yuav txwv tsis pub mus rau qhov chaw pov tseg - uas yog qhov zoo nkauj zoo nkauj. Synthetic hydroxyapatite tuaj yeem ua nrog cov khoom siv calcium uas siv tau tam sim no, ib yam nkaus, uas txo qis ntawm kev siv cov ntxhia pob zeb. Qhov kev xaiv zoo tshaj plaws yog ntuj geological hydroxyapatite los ntawm cov mines qhib, tab sis feem ntau yog siv rau cov ntawv thov kev lag luam qis kawg nkaus. Yog tias kev ruaj ntseg tseem ceeb rau koj, tsuas yog nug cov npe hydroxyapatite ua li cas rau lawv cov khoom, thiab lawv ua dab tsi los txo lawv cov kev cuam tshuam ib puag ncig.

7. Cov lus xaus

Yog li txhawm rau qhwv, hydroxyapatite ua li cas nyob ntawm seb nws puas yog ntuj lossis hluavtaws. Ntuj hydroxyapatite yog muab rho tawm los ntawm cov pob txha tsiaj los yog mined los ntawm geological deposits, thaum hluavtaws yog tsim los ntawm kev tswj cov txheej txheem tshuaj nyob rau hauv ib tug lab xws li ntub dej nag, sol-gel, los yog hydrothermal synthesis.

Yuav ua li cas hydroxyapatite ua ncaj qha cuam tshuam purity, particle loj, thiab dab tsi nws yuav siv tau rau. Ntuj ua haujlwm zoo rau ntau cov neeg siv khoom, thaum hluavtaws yog tus qauv kub rau kev kho mob thiab kev siv qhov ncauj zoo.

Ua siab ncaj, kuv xav tias tib neeg feem ntau tsom mus rau seb nws puas yog ntuj thiab hluavtaws, thiab tsom mus rau hydroxyapatite ua li cas thiab seb nws ua tau raws li cov qauv kev coj dawb huv nruj. Qhov ntawd yog qhov khoom siv tiag tiag.

Txawm hais tias koj yog tus tsim khoom tsim lossis tsuas yog ib tus neeg yuav tshuaj txhuam hniav, ib txwm nug txog cov txheej txheem tsim khoom thiab kev sim. Nws ua rau muaj qhov sib txawv loj dua li koj xav. Tsis muaj lus tso dag, ib lo lus nug no tuaj yeem cawm koj ntawm cov khoom tsis zoo lossis txawm tias muaj teeb meem kev nyab xeeb.

Thaum kawg ntawm hnub, hydroxyapatite yog ib qho khoom siv zoo heev uas tau pab ntau lab tus tib neeg nrog kev kho hniav thiab kho pob txha - nws tsuas yog qhov tseem ceeb uas nws tau ua txoj hauv kev.