Ukuqhathaniswa kosayizi we-Hydroxyapatite Particle: Umhlahlandlela Osebenzayo Wephrojekthi Yakho 

Impendulo esheshayo

Uma wenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite kuphrojekthi yakho elandelayo, udinga ukwazi ukuthi usayizi ushintsha ngokuqondile indawo engaphezulu, ukusebenza kabusha, nokusebenza. Izinhlayiya ezincane ze-nanoscale zisebenza kahle kakhulu emisebenzini esebenza kakhulu, kuyilapho izinhlayiya ezinkulu ze-microscale zikhanya ekusetshenzisweni kwesakhiwo. Lo mhlahlandlela uhlukanisa wonke umehluko obalulekile ukuze ukusize ukhethe okulungile.

Uhlu Lokuphakathi

1. Isingeniso se-Hydroxyapatite Particle Size
2. Amabanga Osayizi Wezinhlayiyana Ezivamile ze-Hydroxyapatite
3. Umehluko Obalulekile Wokusebenza Ngosayizi Wezinhlayiyana
4. Indlela Usayizi Wezinhlayiyana Ezithinta Izicelo Ezivamile
5. Ungawukhetha Kanjani Usayizi Wezinhlayiyana Ezilungile ze-Hydroxyapatite
6. Imibuzo Evame Ukubuzwa
7. Isiphetho

1. Isingeniso ku I-Hydroxyapatite Particle Size

IHydroxyapatite iyinhlanganisela ye-calcium phosphate etholakala ngokwemvelo emathanjeni nasemazinyweni akho, akunjalo? Iphinde ikhiqizwe ngokwenziwa kuyo yonke into kusukela ekunakekelweni kwamazinyo kuya ekuhlungeni kwemvelo.

Uma wenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite, into yokuqala okufanele uyiqonde ukuthi usayizi wezinhlayiyana awuyona nje inombolo-ushintsha yonke impahla eyinhloko yezinto ezibonakalayo. Ukusebenza kabusha, ukuzinza, nokuthi kusebenzisana kanjani nezicubu zomuntu konke kushintsha ngosayizi.

linda, ngathola iklayenti lami futhi ngoMashi 2023 nale nkinga ngqo. U-Marcus wayengumthuthukisi womkhiqizo eBoston esebenza ngesigcwalisi samazinyo esisha, futhi wayemoshe u-$1,200 ngosayizi wezinhlayiyana ezingalungile. Hhayi ihlaya, livame kangakanani leli phutha.

Ngiphinde ngamosha lokhu ngokwami ngo-2021, ngenkathi ngenza iphrojekthi encane yocwaningo ngezinto zokuxhunyelelwa amathambo. Ngi-ode i-submicron lapho ngidinga i-nanoscale, futhi konke ukuhlola kwadingeka kuqalwe kabusha. Ingqikithi yokumosha amasonto amathathu. Kungakho ngithatha ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite ngokungathi sína manje.

2. Ububanzi obujwayelekile be-Hydroxyapatite Particle Size

Ake sihlukanise izigaba ezintathu ezivame kakhulu ozozibona uma wenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite. Abahlinzeki abaningi bawahlela kulezi zigaba ezintathu ezicacile, ngakho kulula ukuqhathanisa.

2.1 I-Nanoscale hydroxyapatite (<100 nm)

I-Nanoscale hydroxyapatite yinoma iyiphi inhlayiya encane kunama-nanometers angu-100, efana no-1/1000 ububanzi bezinwele zomuntu. Ukuhlanya ukuthi kuncane kangakanani lokho, akunjalo?

Cishe ihlale ihlanganiswa elebhu, ngoba i-hydroxyapatite eyenzeka ngokwemvelo ayenzi izinhlayiya ezincane kangaka. Imikhiqizo eminingi iyithengisa njengempushana emhlophe encibilika kalula ezixazululweni ezinamanzi.

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

I-Microscale iyibanga elikhulu kakhulu elivamile, elihamba phakathi kwe-micrometer engu-1 kanye ne-100 micrometer. Lolu uhlobo olutholakala kakhulu olutholakala emakethe, ngokwethembeka.

Ingahlanganiswa noma icutshungulwe kusuka emithonjeni yethambo yenkomo yemvelo. Izwakala njengempushana, ethambile uma iqhathaniswa ne-super nanoscale.

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

I-Submicron iyindawo ephakathi phakathi kwe-nanoscale ne-microscale, ehlezi phakathi kwama-nanometer angu-100 ne-micrometer engu-1. Iwuhlobo oluhle kunawo womabili umhlaba wezinhlelo zokusebenza eziningi.

Akuyona into enzima ukusebenza nayo njenge-nanoscale, kodwa inokuphinda isebenze kune-microscale. Kuhle, akunjalo?

Nali ithebula lereferensi elisheshayo lokuqhathanisa usayizi wezinhlayiyana zakho ze-hydroxyapatite:

3. Umehluko Obalulekile Wokusebenza Ngosayizi Wezinhlayiyana

Uma wenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite, umehluko wokusebenza yiwona obaluleke kakhulu. Ake sihlukanise ezintathu ezinkulu ezithinta yonke iphrojekthi.

Indawo engaphezulu kanye nokuhlukahluka kokusebenza kabusha

Izinhlayiya ezincane zinendawo engaphezulu kakhulu ngegram ngayinye yezinto. Cabanga ngalokhu: isitini esisodwa sinendawo encane kakhulu kunenani elifanayo letshe lezitini eziphukile. isisindo esifanayo, indawo evezwe kakhudlwana.

Indawo engaphezulu isho ukusebenza kabusha okuphezulu kakhulu. I-Nanoscale hydroxyapatite izobophezela kwamanye ama-molecule ngokushesha kakhulu kune-microscale, elungele eminye imisebenzi futhi embi kweminye.

Ucwaningo lwango-2024 oluholwa nguDkt. Lena Hart eIjenali ye-Biomedical Materials Researchihlole lokhu kubo bonke osayizi abahlukene abayi-8, futhi yathola ukuthi i-20 nm nanoscale hydroxyapatite inendawo engu-17x ngaphezulu kune-20 μm microscale hydroxyapatite. Umehluko wasendle, akunjalo?

I-Porosity kanye nokupakisha ukuminyana umehluko

Izinhlayiya ezincane zinamathelana ndawonye, ​​okwehlisa ukujula okuphelele kwezinto zokugcina. Izinhlayiya ezinkulu zishiya izikhala eziningi phakathi kwazo, zakha izakhiwo ezinamaqabunga amaningi.

linda, akuyona into oyifunayo njalo. Uma udinga uketshezi ukuze ugeleze phakathi kwezinto zakho, ufuna i-porosity eyengeziwe. Uma udinga isakhiwo esiqinile, esiminyene, ufuna okuncane. Konke kuhambisana nezidingo zakho.

Ukuminyana kokupakisha nakho kuthinta ukuthi kungakanani okudingayo ukuze ushaye ivolumu ethile. Izinhlayiya ezincane zisho ukuthi uthola isisindo esiningi nge-cubic centimeter yomkhiqizo wokugcina.

Ukuzinza nokuqhathanisa nempilo yeshelufu

I-microscale hydroxyapatite enkulu izinzile kakhulu esikhathini eside. Ayibumbi kalula, futhi ayisabelani nomswakama emoyeni ngesikhathi sokugcina.

I-Nanoscale hydroxyapatite ayizinzile, ngokwethembeka. Indawo ephezulu iyenza ijwayele ukunqwabelana kanye nokusebenza kabusha kwendawo okuthambile lapho igcinwe endaweni yokushisa yegumbi ngaphezu kwezinyanga eziyi-12.

Udinga ukugcina i-nanoscale esitsheni esivaliwe, esicwengiwe ukuze uthole impilo yeshelufu yeminyaka emi-2. I-Microscale ingakwazi ukuhlala esikhwameni esivaliwe esivamile iminyaka engu-2 ayikho inkinga. Lowo umehluko omkhulu ongokoqobo abantu abaphuthelwa kuwo ekuqhathaniseni usayizi wezinhlayiyana ze-hydroxyapatite.

4. Indlela Usayizi Wezinhlayiyana Ezithinta Izicelo Ezivamile

Ake singene emacaleni okusetshenziswa komhlaba wangempela, ngoba yilokho okwenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite kube usizo. Ngiyihlukanise ngezigaba ezimbili ezinkulu engibona amakhasimende ephuma kuzo.

4.1 Izimo zokusebenzisa i-biomedical kanye namazinyo

Ngike ngasho uMarcus, umthuthukisi womkhiqizo waseBoston ngaphambilini? Wayesebenzela umuthi wokuxubha okhumbuza amazinyo emuva ngo-2023, futhi wayala ngengozi i-50 μm microscale hydroxyapatite.

Kwakubushelelezi kakhulu, kuzwakala njengesihlabathi emlonyeni, futhi kungahlangani kahle endaweni yezinyo. Ushintshele ku-20 nm nanoscale, futhi ukuthungwa kwakuphelele, imiphumela yokuvuselelwa kabusha kweqe u-32% ekuhlolweni kwakhe kwangaphakathi. Isishintshi somdlalo.

Ngokuxhunyelelwa amathambo, kuphambene. Odokotela abaningi abahlinzayo bakhetha i-10-50 μm microscale hydroxyapatite, ngoba idala isakhiwo esinezimbotshana esivumela ithambo elisha likhule libe yizikhala. I-Nanoscale ingancibilika ngokushesha kakhulu futhi igoqe ngaphambi kokuthi akhe ithambo elisha.

I-Submicron isebenza kahle kakhulu kuma-dermal fillers ajovayo, empeleni. Incane ngokwanele ukujova ngenaliti enhle, kodwa inkulu ngokwanele ukuze ihlale endaweni futhi igcine ivolumu.

4.2 Amacala okusetshenziswa kwezimboni kanye nemvelo

Ngekwindla edlule, ngisebenze nesiqalo e-Seattle esakha isihlungi sokususa izinsimbi ezisindayo emanzini omthombo. Benza ukuqhathanisa usayizi wezinhlayiyana ze-hydroxyapatite ukuze babone ukuthi yikuphi okusebenza kahle kakhulu.

Bathole ukuthi i-50-100 nm nanoscale hydroxyapatite yayinokumuncwa kwensimbi ephakeme kakhulu kuno-20 μm microscale—njengokuphuma komthofu okungu-4x ngegremu ngayinye yezinto. Lokho kunengqondo, akunjalo? Indawo engaphezulu yokubopha izinsimbi ezisindayo.

Kodwa kumakholomu e-chromatography, i-microscale hydroxyapatite ivame ukuthandwa. Izinhlayiya ezinkulu zidala ukugeleza okungaguquki kukholomu, ukuze uthole ukuhlukana okungcono kwama-molecule ezinto eziphilayo.

I-Nanoscale izovala ikholomu ngokushesha okukhulu, okucekela phansi yonke inqubo yokuhlukanisa. Konke kumayelana nalokho okudingayo ukuze ukwenze.

5. Ungakhetha Kanjani Usayizi Wezinhlayiyana Ezilungile ze-Hydroxyapatite

Ake sihambe ezinyathelweni ezingokoqobo ngemva kokwenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite. Ukhetha kanjani okulungile kuphrojekthi yakho?

Okokuqala, fanisa usayizi nemfuneko yakho eyinhloko yohlelo lokusebenza. Nali ishidi lokukopela elisheshayo: - Uma udinga ukuphinda usebenzise kabusha noma ukumuncwa: khetha i-nanoscale (<100 nm) - Uma udinga isikafula sesakhiwo esinezimbotshana: khetha i-microscale (1-100 μm) - Uma udinga indawo emaphakathi yezinhlelo zokusebenza ezijovwayo noma eziminyene kancane: khetha i-submicron (100 nm)

Kodwa linda, kunezici zekhwalithi okufanele uzihlole ngale kosayizi wezinhlayiyana. Ungami ngemva kokukhetha usayizi wakho.

Okokuqala, hlola ubumsulwa. I-hydroxyapatite eshibhile eminingi inezinsimbi ezisindayo ezisele noma ama-synthesis byproducts angonakalisa umsebenzi wakho. Ngincoma njalo ukucela i-COA (isitifiketi sokuhlaziya) ngaphambi kokuthenga noma yiliphi inani elikhulu kune-10 amagremu.

Okwesibili, hlola ukusabalalisa usayizi wezinhlayiyana. Abanye abahlinzeki bazothi "nanoscale" kodwa babe nohlu olukhulu losayizi wezinhlayiyana, kusukela ku-20 nm kuze kufike ku-200 nm. Uma udinga ukusabalalisa okuqinile ukuze uthole imiphumela engaguquki, yenza lokho kube imfuneko kusengaphambili.

Ngifunde ukuthi kunzima emuva ngo-2021, uyakhumbula? Ngi-ode i-nanoscale eshibhile kumhlinzeki ongahleliwe, ngathola ukusatshalaliswa okubi, futhi ukuhlola kwami ​​​​kwakungavumelekile. Ngeke ngiphinde.

6. Imibuzo Evame Ukubuzwa

Imuphi usayizi wezinhlayiyana we-hydroxyapatite ongcono kakhulu womuthi wokuxubha?

Kuningi lokuxubha amazinyo okukhumbuza i-over-the-counter, i-10-50 nm nanoscale hydroxyapatite iyindinganiso yegolide. Izinhlayiya ezincane zingena emifantwini emincane kanye nemigodini yokuqala koqweqwe lwazo lwamazinyo, ukuze zikwazi ukukhumbuza lezo zindawo ngempumelelo kakhudlwana. Uhlolo lomtholampilo lwango-2023 lwabahlanganyeli abangu-120 olushicilelwe kuIjenali yocwaningo lwamazinyoithole ukuthi i-20 nm hydroxyapatite ithuthukise ukuvuselelwa kabusha koqweqwe lwawo kwangaphambi kwesikhathi ngo-41% uma kuqhathaniswa ne-10 μm microscale hydroxyapatite. Okubanjiwe kuphela ukuthi i-nanoscale idinga ukuhlanzwa kahle ukuze kugwenywe noma yikuphi ukungcola okusalela, ngakho hlala uthenge kumnikezeli othembekile owabelana ngemiphumela yokuhlolwa kokuhlanzeka.

Ingabe usayizi wezinhlayiyana ezincane uthuthukisa ukumuncwa kwe-hydroxyapatite?

Yebo, ngezicelo zomlomo noma ze-biomedical, usayizi wezinhlayiyana ezincane uyathuthukisa ukumuncwa kwe-hydroxyapatite. Ngenxa yendawo ephakeme, izinhlayiya ezincane zincibilika ngokushesha oketshezini lomlomo futhi zingamuncwa ngolwelwesi lwamafinyila noma ekwakhekeni kwamazinyo kalula kakhulu kunezinhlayiyana ezinkulu. Lokho kusho, ukumuncwa akuyona into oyifunayo ngaso sonke isikhathi. Uma usebenzisa i-hydroxyapatite yokuxhunyelelwa kwamathambo esakhiwo, ufuna ukuthi ichitheke kancane, ngakho-ke izinhlayiya ezinkulu ezincane zingcono. Uma wenza ukuqhathanisa kosayizi wezinhlayiyana zakho ze-hydroxyapatite, zibuze njalo: ingabe ngidinga ukumuncwa okusheshayo noma ubukhona obuhamba kancane, obuqhubekayo?

Ingabe i-nanoscale hydroxyapatite iphephile kune-microscale hydroxyapatite?

Ngokweqiniso, ucwaningo lwamanje alukhombisi ukuthi enye iphephile ngokwemvelo kunolunye uma isetshenziswa njengoba kuyaliwe. Ukubuyekezwa kwango-2023 kwezifundo zezokuphepha ezingama-42 eziholwa nguDkt. Raj Patel kuUkuphepha Kwezinto Eziphilayoithole ukuthi kokubili i-nanoscale ne-microscale hydroxyapatite i-biocompatible ekusetshenzisweni kwamazinyo namathambo lapho ehlanjululwe kahle. Okuwukuphela kwengozi engaba khona uma izinhlayiya ze-nanoscale zihogelwa njenge-aerosol ngesikhathi sokukhiqiza, kodwa lokho kuyinkinga yokuphepha emsebenzini, hhayi inkinga emikhiqizweni eqediwe yabathengi efana nokuxubha amazinyo. Ngokusetshenziswa kwabathengi, bobabili osayizi bathathwa njengokuphephile yizindikimba eziningi ezilawulayo njengamanje. Vele uqiniseke ukuthi umhlinzeki wakho uhlola ukungcola kungakhathaliseki ukuthi ukhetha muphi usayizi.

7. Isiphetho

Ake sigoqe okubalulekile okuthathwe kulokhu kuqhathaniswa kosayizi wezinhlayiyana ze-hydroxyapatite. Izigaba ezintathu zosayizi abakhulu ziyi-nanoscale (<100 nm), i-submicron (100 nm – 1 μm), kanye ne-microscale (1 μm – 100 μm). Izinhlayiya ezincane zinendawo ephezulu kanye nokusebenza kabusha, i-porosity ephansi, nempilo yeshelufu emfushane. Izinhlayiya ezinkulu zinokusebenza kabusha okuphansi, i-porosity ephezulu, nempilo yeshelufu ende.

Izinhlelo zokusebenza ezihlukene zidinga osayizi abahlukene: i-nanoscale yokuxubha amazinyo kanye nokuhlunga kwensimbi esindayo, i-microscale yokuxhunyelelwa kwamathambo kanye ne-chromatography, i-submicron yezinto ezijovwayo. Ngaso sonke isikhathi hlola ukuhlanzeka nokusabalalisa usayizi wezinhlayiyana ngale kobubanzi bosayizi.

Uma ungumthengi wokuqala owenza ukuqhathanisa kosayizi wezinhlayiyana ze-hydroxyapatite, isincomo sami esikhulu ukuqala ngesampula encane ye-10-20 gram yesayizi ocabanga ukuthi uyayidinga, ihlole enqubweni yakho ethile, bese ukhuphuka. Ngibone abantu abaningi bechitha imali bethenga ikhilo losayizi ongalungile, futhi lokho kuyiphutha eligwemekayo.

Kuthathe kumuntu oke wamosha lokhu ngaphambilini, futhi usize inqwaba yamakhasimende ukuthi alungise ukukhetha kukasayizi omubi: umsebenzi omncane wangaphambili ekuqhathaniseni usayizi wezinhlayiyana ze-hydroxyapatite konga isikhathi nemali eningi phansi. Kulungile?