I-Hydroxyapatite Ubungakanani beNgxelo yokuthelekisa ubungakanani: Isikhokelo esisebenzayo seProjekthi yakho 

Impendulo eKhawulezayo

Ukuba wenza i-hydroxyapatite ubungakanani bokuthelekisa ubungakanani beprojekthi yakho elandelayo, kufuneka wazi ukuba ubungakanani butshintsha ngokuthe ngqo indawo ephezulu, ukusebenza kwakhona, kunye nokusebenza. Iincinci ezincinci ze-nanoscale zisebenza kakuhle kwimisebenzi ephezulu yokuphinda isebenze, ngelixa iincinci ezinkulu ezincinci zikhanya kwizicelo zesakhiwo. Esi sikhokelo sichitha wonke umahluko ongundoqo ukukunceda ukhethe okulungileyo.

Isiqulatho

1. Intshayelelo kwi-Hydroxyapatite Particle Ubungakanani
2. I-Hydroxyapatite ye-Particle Ubungakanani obuqhelekileyo
3. Iiyantlukwano zoMsebenzi oPhambili ngokobungakanani beNcam
4. Indlela Ubungakanani beNgxelo Ezichaphazela ngayo izicelo eziqhelekileyo
5. Indlela yokukhetha ubungakanani beNcam yeHydroxyapatite eLungileyo
6. Imibuzo Ebuzwa Rhoqo
7. Ukuqukumbela

1. Intshayelelo ku Hydroxyapatite Particle Size

I-Hydroxyapatite yi-calcium phosphate compound efumaneka ngokwemvelo emathanjeni namazinyo akho, akunjalo? Ikwaveliswa ngokwenziwa kuyo yonke into ukusuka kukhathalelo lwamazinyo ukuya kuhluzo lokusingqongileyo.

Xa wenza i-hydroxyapatite ubungakanani be-particle size uthelekiso, into yokuqala ukuyiqonda kukuba ubukhulu be-particle ayiyona nje inombolo-itshintsha yonke ipropati engundoqo yezinto. Ukusebenza kwakhona, ukuzinza, nokuba kunxibelelana njani nezicubu zomntu zonke zitshintsha ngobungakanani.

linda, bendinomthengi oza kum ngoMatshi 2023 nale ngxaki kanye. UMarcus wayengumphuhlisi wemveliso eBoston esebenza kwisihluzi samazinyo esitsha, kwaye uchithe i-1,200 yeedola kubungakanani besuntswana elingalunganga. Akukho joke, yindlela eqhelekileyo le mpazamo.

Ndiphinde ndamosha oku ngokwam ngo-2021, xa ndandisenza iprojekthi yophando encinci kwizinto zokufakelwa kwamathambo. Ndiyalele i-submicron xa ndifuna i-nanoscale, kwaye lonke uvavanyo kwafuneka luqaliswe kwakhona. Iyonke inkcitho yeeveki ezintathu. Yiyo loo nto ndithatha i-hydroxyapatite ubungakanani bokuthelekisa ubungakanani ngokubaluleke kakhulu ngoku.

2. Ubungakanani obuqhelekileyo be-Hydroxyapatite Particle Ranges

Makhe siphule amanqanaba amathathu aqhelekileyo oza kuyibona xa uthelekisa ubungakanani be-hydroxyapatite. Uninzi lwababoneleli baluhlela kwezi ntlobo zintathu zicacileyo, ngoko kulula ukuthelekisa.

2.1 Nanoscale hydroxyapatite (<100 nm)

I-Nanoscale hydroxyapatite nayiphi na i-particle encinci kune-nanometers ye-100, efana ne-1/1000 ububanzi beenwele zomntu. Iyaphambana incinci kangakanani na, akunjalo?

Phantse isoloko idityanisiwe kwilebhu, kuba i-hydroxyapatite eyenzeka ngokwemvelo ayenzi amasuntswana ale ncinci. Uninzi lweebrand luyithengisa njengomgubo ocolekileyo omhlophe onyibilika ngokulula kwizisombululo ezinamanzi.

2.2 I-Microscale hydroxyapatite (1 μm – 100 μm)

I-Microscale lolona luhlu luqhelekileyo luqhelekileyo, i-clocking phakathi kwe-1 micrometer kunye ne-100 micrometers. Olu lolona hlobo lufumanekayo kakhulu uya kulufumana kwimarike, ngokunyaniseka.

Inokuthi yenziwe okanye iqhutywe kwimithombo yendalo yethambo yenkomo. Ivakala ngathi ngumgubo ocolekileyo xa uthelekiswa ne-nanoscale entle kakhulu.

2.3 I-Submicron hydroxyapatite (100 nm – 1 μm)

I-Submicron yindawo ephakathi phakathi kwe-nanoscale kunye ne-microscale, ehleli phakathi kwe-nanometers ye-100 kunye ne-1 micrometer. Lolona hlobo lubalaseleyo lwehlabathi zombini kwizicelo ezininzi.

Ayisiyonto inqabileyo ukusebenza nayo njenge-nanoscale, kodwa inokuphinda isebenze ngakumbi kune-microscale. Ucocekile, akunjalo?

Nantsi itafile yereferensi ekhawulezayo yothelekiso lobungakanani bamasuntswana e-hydroxyapatite:

3. Iiyantlukwano zoMsebenzi oPhambili ngokobungakanani beNcam

Xa usenza i-hydroxyapatite ubukhulu be-particle size uthelekiso, umahluko wokusebenza yeyona nto ibaluleke kakhulu. Makhe siphule ezintathu ezinkulu ezichaphazela yonke iprojekthi.

Indawo engaphezulu kunye nokwahluka kokuphinda kusebenze

Amasuntswana amancinci anommandla omphezulu ongaphezulu ngegram yemathiriyeli. Yicinge ngolu hlobo: isitena esinye sinendawo engaphantsi komhlaba kunomlinganiselo ofanayo wegrabile yezitena ezaphukileyo. ubunzima obufanayo, ubuso obuveziweyo ngakumbi.

Umphezulu ongaphezulu uthetha indlela ephezulu yokuphinda isebenze. I-Nanoscale hydroxyapatite iya kuzibophelela kwezinye iimolekyuli ngokukhawuleza kune-microscale, elungile kwimisebenzi ethile kwaye yoyikeka kwabanye.

Uphononongo luka-2024 olukhokelwa nguGqr Lena Hart kwiIjenali yoPhando lweMathiriyeli yeBiomedicalivavanye oku kwiisayizi ezahlukeneyo ezisi-8, kwaye yafumanisa ukuba i-20 nm nanoscale hydroxyapatite ine-17x yendawo ephezulu kune-20 μm microscale hydroxyapatite. Umahluko wasendle, akunjalo?

Porosity kunye nokupakisha ukuxinana umahluko

Amasuntswana amancinci apakisha aqina kunye, nto leyo yehlisa i-porosity epheleleyo yemathiriyeli yokugqibela. Iinqununu ezinkulu zishiya izithuba ezininzi phakathi kwazo, zenze izakhiwo ezinqabileyo.

linda, akusoloko oko ufuna. Ukuba ufuna ulwelo ukuhamba kwizinto zakho, ufuna i-porosity engaphezulu. Ukuba ufuna isakhiwo esiqinileyo, esixineneyo, ufuna ngaphantsi. Konke kuhambelana neemfuno zakho.

Ukupakisha ukuxinana kukwachaphazela ukuba zininzi kangakanani izinto ozifunayo ukuze ubethe umthamo othile. Amasuntswana amancinci athetha ukuba ufumana ubunzima obuninzi kwi-cubic centimeter nganye yemveliso yokugqibela.

Ukuzinza kunye nokulinganisa ubomi beshelufu

I-microscale hydroxyapatite enkulu yindlela ezinzile ngakumbi kwixesha elide. Ayidibanisi ngokulula, kwaye ayisebenzi ngokufuma emoyeni ngexesha lokugcinwa.

I-Nanoscale hydroxyapatite ayizinzile, ngokunyanisekileyo. Ummandla ophakamileyo womhlaba wenza ukuba kube lula ukugoba kunye nokuphinda usebenze kwakhona xa ugcinwe kwiqondo lobushushu begumbi ngaphezulu kweenyanga ezili-12.

Kufuneka ugcine i-nanoscale kwi-container evaliweyo, edibeneyo ukuze ufumane ubomi be-shelf ye-2 iminyaka. I-Microscale inokuhlala kwisikhwama esitywiniweyo esiqhelekileyo iminyaka emi-2 akukho ngxaki. Lo ngumahluko omkhulu obambekayo abantu abawuphosileyo kuthelekiso lobungakanani bamasuntswana e-hydroxyapatite.

4. Ubungakanani beNqanaba buzichaphazela njani izicelo eziqhelekileyo

Masingene kwiimeko zokusetyenziswa kwehlabathi lokwenyani, kuba yiloo nto eyenza uthelekiso lobungakanani be-hydroxyapatite luncedo. Ndiyahlulahlula kwiindidi ezimbini ezinkulu endibona abaxhasi bevela kuzo.

4.1 Iimeko zokusetyenziswa kweBiomedical kunye namazinyo

Ndikhe ndakhankanya uMarcus, umphuhlisi wemveliso yaseBoston ngaphambili? Wayesebenza kwi-remineralizing intlama yamazinyo emva ngo-2023, kwaye wayala i-50 μm microscale hydroxyapatite ngengozi.

Yayibuburharha kakhulu, ivakala ngathi yintlabathi emlonyeni, kwaye ingabophelelanga kwindawo yezinyo ngokufanelekileyo. Watshintshela kwi-20 nm nanoscale, kwaye ukuthungwa kwakugqibelele, iziphumo ze-remineralization zaxhuma i-32% kuvavanyo lwakhe lwangaphakathi. Umtshintshi womdlalo.

Ukufakwa kwamathambo, kuchasene. Uninzi lweengcibi zikhetha i-10-50 μm microscale hydroxyapatite, kuba idala isakhiwo se-porous esivumela ukuba ithambo elitsha likhule libe yizikhewu. I-Nanoscale iya kunyibilika ngokukhawuleza kakhulu kwaye iwe ngaphambi kokuba ithambo elitsha lenze.

I-Submicron isebenza kakuhle kwi-injection yedermal fillers, eneneni. Incinci ngokwaneleyo ukujova ngenaliti entle, kodwa inkulu ngokwaneleyo ukuba ihlale kwindawo kwaye igcine umthamo.

4.2 Iimeko zokusetyenziswa kwemizi-mveliso kunye nokusingqongileyo

Ekwindla yokugqibela, ndasebenza kunye nesiqalo e-Seattle esasiphuhlisa isihluzo sokususa isinyithi esinzima emanzini. Bebesenza i-hydroxyapatite ubungakanani bokuthelekisa ubungakanani ukubona ukuba yeyiphi esebenza kakuhle.

Baye bafumanisa ukuba i-50-100 nm nanoscale hydroxyapatite yayinendlela ephezulu yokufunxa isinyithi kune-20 μm microscale-efana ne-4x ngaphezulu kwesikhokelo esisusiweyo ngegram yezinto. Oko kuyavakala, akunjalo? Indawo engaphezulu yomphezulu ukubophelela iintsimbi ezinzima.

Kodwa kwiikholamu zechromatography, i-microscale hydroxyapatite ihlala ikhethwa. Amasuntswana amakhulu adala ukuhamba okuhambelanayo kwikholamu, ukuze ufumane ukwahlukana okungcono kweeathomu zebhayoloji.

I-Nanoscale yayiza kuvala ikholamu ngokukhawuleza, eyonakalisa yonke inkqubo yokwahlukana. Kuko konke okufunayo ngezinto eziphathekayo ukuze wenze.

5. Indlela yokukhetha ubungakanani beNcam yeHydroxyapatite eLungileyo

Masihambe kumanyathelo asebenzayo emva kokuba wenze i-hydroxyapatite yakho yobungakanani bokuthelekisa ubungakanani. Unokukhetha njani eyona ilungileyo kwiprojekthi yakho?

Okokuqala, thelekisa ubungakanani kwimfuno engundoqo yesicelo sakho. Nali iphepha lokukopela elikhawulezayo: - Ukuba ufuna ukuphinda usebenze kwakhona okanye ukufunxwa: khetha i-nanoscale (<100 nm) - Ukuba ufuna i-scaffold ene-porous structural: khetha i-microscale (1-100 μm) - Ukuba ufuna umhlaba ophakathi kwizicelo ezitofwayo okanye ezixineneyo: khetha i-submicron (100 nm)

Kodwa linda, kukho izinto ezisemgangathweni onokuthi ujonge ngaphaya kobungakanani besuntswana. Musa ukuma emva kokuba ukhethe ubungakanani bakho.

Okokuqala, khangela ubunyulu. Uninzi lwe-hydroxyapatite enexabiso eliphantsi ineentsimbi ezinzima ezishiyekileyo okanye i-synthesis byproducts enokonakalisa umsebenzi wakho. Ndihlala ndincoma ukucela i-COA (isatifiketi sokuhlalutya) ngaphambi kokuba uthenge nayiphi na imali enkulu kune-10 grams.

Okwesibini, khangela ukuhanjiswa kobungakanani beqhekeza. Abanye ababoneleli baya kuthi "nanoscale" kodwa banoluhlu olukhulu lwee-particle sizes, ukusuka kwi-20 nm yonke indlela ukuya kwi-200 nm. Ukuba ufuna ukuhanjiswa okuqinileyo kwiziphumo ezifanayo, yenza loo nto iyimfuneko ngaphambili.

Ndifundile ukuba kunzima ukubuyela ngo-2021, uyakhumbula? Ndiyalele i-nanoscale exabiso eliphantsi kumthengisi ongakhethiyo, ndafumana usasazo olubi, kwaye uvavanyo lwam lwalungasebenzi. Hayi kwakhona ngonaphakade.

6. Imibuzo Ebuzwa Rhoqo

Yeyiphi eyona sayizi yamasuntswana e-hydroxyapatite kwintlama yamazinyo?

Kuninzi lwe-remineralizing toothpastes, i-10-50 nm nanoscale hydroxyapatite ngumgangatho wegolide. Amasuntswana amancinci angena kwi-micro-cracks kunye nemingxuma yokuqala kwi-enamel yezinyo, ngoko ke banokukhumbuza ezo ndawo ngokufanelekileyo. Ulingo lweklinikhi luka-2023 lwabathathi-nxaxheba be-120 olupapashwe kuyoIjenali yoPhando lwamazinyoifumene ukuba i-20 nm i-hydroxyapatite iphucule i-enamel yokuqala yokubuyisela i-enamel nge-41% xa kuthelekiswa ne-10 μm microscale hydroxyapatite. Ukuphela kokubamba kukuba i-nanoscale kufuneka ihlanjululwe ngokufanelekileyo ukuze igweme nayiphi na inkunkuma eseleyo, ngoko hlala uthenge kumthengisi ohloniphekileyo owabelana ngeziphumo zokuvavanya ubunyulu.

Ngaba ubungakanani bamasuntswana amancinci aphucula ukufunxwa kwe-hydroxyapatite?

Ewe, kwizicelo zomlomo okanye ze-biomedical, ubungakanani bamasuntswana amancinci aphucula ukufakwa kwe-hydroxyapatite. Ngenxa yendawo ephezulu, amaqhekeza amancinci anyibilika ngokukhawuleza kumanzi omlomo kwaye anokuthi afakwe kwi-mucous membranes okanye kwisakhiwo sezinyo ngokukhawuleza kunamaqhekeza amakhulu. Oko kwathiwa, ukufunxa akusoloko kuyile nto uyifunayo. Ukuba usebenzisa i-hydroxyapatite kwi-graft ye-bone bone, ufuna ukuba inyibilike ngokukhawuleza, ngoko ke amasuntswana ama-microscale amakhulu angcono. Xa usenza i-hydroxyapatite yakho yesayizi yokulinganisa ubungakanani, hlala uzibuza: Ngaba ndifuna ukufunxa okukhawulezayo okanye okucothayo, ubukho obuzinzileyo?

Ngaba i-nanoscale hydroxyapatite ikhuselekile kune-microscale hydroxyapatite?

Ngokunyaniseka, uphando lwangoku alubonisi ukuba enye ikhuselekile ngokwendalo kunomnye xa isetyenziswa njengoko kuyalelwe. Uphononongo lwe-2023 lwezifundo zokhuseleko ze-42 ezikhokelwa nguDkt Raj Patel kwiUkhuseleko lweBiomaterialsyafumanisa ukuba zombini i-nanoscale kunye ne-microscale hydroxyapatite i-biocompatible ukusetyenziswa kwamazinyo kunye ne-orthopedic xa ihlanjululwe ngokufanelekileyo. Umngcipheko onokuthi ubekho kuphela ukuba i-nanoscale particles ifakwe njenge-aerosol ngexesha lokuvelisa, kodwa loo nto ingumbandela wokhuseleko lomsebenzi, kungekhona ingxaki kwiimveliso zabathengi ezigqityiweyo ezifana ne-toothpaste. Ukusetyenziswa kwabathengi, zombini iisayizi zithathwa njengekhuselekile ngoninzi lwamaqumrhu alawulayo ngoku. Qiniseka ukuba umthengisi wakho uvavanya ukungcola nokuba ukhetha kangakanani na.

7. Isiphelo

Makhe sisonge izinto eziphambili zokuthatha kule ngqalelo ye-hydroxyapatite yokulinganisa ubungakanani. Iintlobo ezintathu zobukhulu obukhulu ziyi-nanoscale (<100 nm), i-submicron (100 nm - 1 μm), kunye ne-microscale (1 μm - 100 μm). Amasuntswana amancinci anommandla ongaphezulu komhlaba kunye nokusebenza kwakhona, i-porosity ephantsi, kunye nobomi obufutshane beshelufu. Amasuntswana amakhulu ane-reactivity ephantsi, i-porosity ephezulu, kunye nobomi obude beshelufu.

Izicelo ezahlukeneyo zidinga ubukhulu obuhlukeneyo: i-nanoscale ye-toothpaste kunye ne-filtration yensimbi enzima, i-microscale ye-bone grafts kunye ne-chromatography, i-submicron yezinto ezitofwayo. Soloko ujonga ubunyulu kunye nokuhanjiswa kobungakanani besuntswana ngaphaya koluhlu lobungakanani.

Ukuba ungumthengi wokuqala owenza ukulinganisa ubungakanani be-particle ye-hydroxyapatite, isincomo sam esikhulu kukuqala ngesampula encinci ye-10-20 yegram yobungakanani ocinga ukuba uyayidinga, uyivavanye kwinkqubo yakho ethile, uze unyuke. Ndibone abantu abaninzi bechitha imali bethenga ikhilo yesayizi engafanelekanga, kwaye loo nto iphosakele kakhulu.

Yithathe kumntu oye wayimosha le nto ngaphambili, kwaye uncede uninzi lwabaxumi balungisa ukhetho olubi lobungakanani: umsebenzi omncinci wangaphambili kuthelekiso lobungakanani bamasuntswana e-hydroxyapatite konga ixesha kunye nemali eninzi emgceni. Kunene?