Polyhydroxyalkanoate (PHA), polyester-ka intracellular ee ay ka samaysan yihiin nooleyaal badan, waa biomaterial polymer dabiici ah.
Characteristics ee PHA
Biodegradadability: PHA si kedis ah bay nooloobi kartaa, iyada oo aan la curin, waxaa lagu baabi'in karaa ciidda iyo biyaha, xaaladaha hawada iyo anaerobic, iyo wakhtiga xaalufka waa la xakameyn karaa, iyadoo ku xiran halabuurka iyo xajmiga alaabta PHA iyo xaaladaha kale ee dibadda.Iyada oo ku xidhan deegaanka, heerka nabaad-guurka ee PHA waa 2 ilaa 5 jeer ka dhakhso badan kiimikaad farsamaysan ee wax-soo-saarka biodegradable polycaprolactone (PCL) ama polyester-yada kale ee synthetic aliphatic;halka PHA-ga ugu dhow uu yahay polylactic acid (PLA) Biodegradetion si sahal ah kuma dhici doono wax ka hooseeya 60 darajo Celsius.
Biocompatibility Wanaagsan: PHA waxa loo xumeyn karaa oligomers molecular yar yar ama qaybo monomer ah oo jidhka ku jira, kuwaas oo aan sun ahayn oo aan waxyeello u lahayn noolaha, oo aan sababi doonin diidmo.Sidaa darteed, waxaa lagu dabaqi karaa lafaha macmalka ah, wakiilada sii-deynta daroogada iyo wixii la mid ah.Sannadkii 2007, tolmada la nuugi karo (TephaFLEX®) ee laga sameeyay P4HB waxaa ansixiyay FDA US waxayna noqotay badeecada caafimaadka ee PHA ugu horraysa ee la baayacmushtaro.Waqtigan xaadirka ah, dunidu waxay si xoog leh u baranaysaa codsiga PHA ee dhinacyo badan sida injineernimada unugyada, qalabka la geliyo, iyo sidayaasha sii-deynta daroogada.
Hanti isku dhaf ah oo wanaagsan: waxaa loo isticmaali karaa isku-dhafka walxaha kale.Tusaale ahaan, PHA waxaa lagu dari karaa warqad si loo sameeyo warqad baakadaha leh sifooyin gaar ah;ama lagu daray birta, aluminium, tiin iyo walxo kale oo bir ah, sidoo kale waxaa lagu dari karaa dambaska duqsiga si loo hagaajiyo waxqabadka kulaylka iyo adkaanta PHA;Intaa waxaa dheer, PHA iyo calcium silicate Compound waxaa loo isticmaalaa si loo kordhiyo heerka xaalufka ee PHA iyo xalinta dhibaatada qiimaha pH hoose ka dib xaalufka PHA;Waxa kale oo lagu dari karaa qaar ka mid ah wakiilada daaweynta aan organic ahayn si ay u soo saaraan alaabta daahan oo leh shaqo aan biyuhu lahayn.
Guryaha gaaska xannibaadda: PHA waxay leedahay sifooyin gaas oo wanaagsan waxaana loo isticmaali karaa baakadaha cusub;xasiloonida hydrolytic: hydrophobicity xooggan, oo loo isticmaalo soo saarista alaabta miiska;indho-indheyn aan toos ahayn: PHA waxay leedahay dhaqdhaqaaq indho-indhayn ah, unug kasta oo qaab-dhismeedkuna waxa uu leeyahay Kaarboon Chiral ah ayaa loo isticmaali karaa falanqaynta chromatographic si loo kala saaro isomers indhaha;Xasilooni UV: Marka la barbar dhigo polyolefins kale iyo polymers polyaromatic, waxay leedahay xasillooni UV ka wanaagsan.
Codsigasee PHA
1. Qalabka biomedical.PHA waxaa caadi ahaan loo isticmaalaa goobta caafimaadka si loo soo saaro tolida qalliinka, suunka, beddelka lafaha, beddelka xididdada dhiigga, sidayaal sii-deynta daroogada, galoofyada caafimaadka, qalabka labiska, tampons, filimada caafimaadka, iwm.
2. Baakadaha baakadaha noolaha ah iyo kuwa aan biyuhu helin iyo kuwa ad-adag ee macaamiisha sida alaabada nadaafadda, xafaayadda, waxyaalaha la isku qurxiyo (waxyaabaha qallafsan ee alaabta la isku qurxiyo, dahaarka dhalada biyaha), iwm.
3. Qalabka qalabka.Alaabta guriga, alaabta miiska, muraayadaha, shisheeyaha korontada, gudaha baabuurta, iwm.
4. Wax soo saarka beeraha.Sidaha noolaha ee sunta cayayaanka iyo bacriminta, filim caag ah, iwm.
5. Warbaahin kiimikaad iyo dareerayaasha.Nadiifiyeyaasha, midabaynta, khad dareerayaasha, xabagta, agabka firfircoon ee indhaha.
6. Waxa loo istcmaalayaa sida saldhigga walxaha heerkulbeegga (polyurethane iyo resins polyester-ka aan saturated lahayn).
Sababtoo ah PHA waxay leedahay bioocompatibility wanaagsan, biodegradability iyo waxqabadka kulaylka ee balaastikada isku mar.Sidaa darteed, waxaa loo isticmaali karaa sida alaabta biomedical iyo alaabta baakadaha biodegradable isku mar, taas oo noqotay goobta ugu firfircoon ee cilmi-baarista ee berrinkii biomaterials sanadihii la soo dhaafay.PHA waxa kale oo ay leedahay siyaalo badan oo qiimo sare leh oo lagu daray sida muraayadaha aan tooska ahayn, piezoelectricity, iyo guryaha xannibaadaha gaaska.
WorldChamp Enterprisesdiyaar u noqon doona wakhti kasta si ay u sahaydaAlaabta ECOmacaamiisha ka yimid adduunka oo dhan,Gacan-gashi-gashi, bacaha raashinka, bacda jeegaga, bacda qashinka,goynta, alaabta adeegga cuntadaiwm.
WorldChamp Enterprises waa lamaanahaaga ugu fiican si aad u kharash garayso alaabta ECO, beddelka alaabooyinka caagagga dhaqameed, si looga hortago wasakhowga cad, uga dhigo baddeena iyo dhulkeena nadiif iyo nadiif.
Waqtiga boostada: Febraayo-10-2023