Polyhydroxyalkanoate (PHA), polyester ea intracellular e entsoeng ke likokoana-hloko tse ngata, ke polymer biomaterial ea tlhaho.
Liseleng tsa likokoana-hloko, haholo-holo lisele tsa baktheria, ho na le palo e kholo ea polymer polyester - Polyhydroxyalkanoates (PHA).Ena ke biomaterial ea tlhaho ea polymer.Ha e bue ka ho toba ho polymer e itseng, empapoleloana e akaretsang bakeng sa sehlopha sa li-polymers tse nang le meaho e ts'oanang le thepa e fapaneng.
PHA e batla e le phihlelomekhahlelo e mene ea tsoelopele.
Moloko oa pele oa PHA, polyhydroxybutyrate (PHB), o ile oa hlahisoa ka bongata ke Chemie Linz AG oa Austria lilemong tsa bo-1980 (lihlahisoa tsa selemo le selemo tsa lithane tse 100).Joalo ka lisebelisoa tsa pele tsa PHA tse sibollotsoeng, PHB hape ke sebopeho se bonolo le se atileng haholo lelapeng la PHA.E na le maemo a phahameng a sebopeho, thepa e thata le e brittle, 'me thepa ea eona ea mechine le ntlha ea ho qhibiliha e tšoana le polypropylene (PP);empa elongation nakong ea khefu Sekhahla se tlase, brittleness e phahameng.Ka hona, PHB hangata e ke ke ea sebelisoa e le sesebelisoa se le seng 'me e hloka ho fetoloa ho fihlela ts'ebetso e sebetsang.
Moloko oa bobeli oa PHA, polyhydroxybutyric acid copolyester (PHBV), e ile ea rekisoa ke ICI lilemong tsa bo-1980.PHBV ke PHA copolymer e boima ba molek'hule e fetang 300,000.PHBV, joalo ka ntlafatso ea sehlahisoa sa moloko oa pele oa PHB, e ntlafalitse haholo elasticity ea eona ka mor'a ho eketsa monoma ea 3-hydroxyvalerate (3HV).Hobane e ka bola ka botlalo ka har'a manyolo ka litlama, mobung, metsing a leoatle le libakeng tse ling, e boetse e na le ts'ebetso e ntle ea biocompatibility le lithibelo tse phahameng tse thibelang maro le likhase, e leng se etsang hore PHBV e be sesebelisoa se loketseng sa boenjiniere sa motho bakeng sa ho etsa li-sutures tsa bongaka.terata, lipekere tsa masapo, joalo-joalo, hape li ka sebelisoa e le mulch ea temo,mekotla ea ho reka, tableware le lisebelisoa tsa ho paka lijo.Hajoale, ts'ebetso ea tlhahiso ea lihlahisoa tsa PHBV e se e ntlafalitsoe, 'me e se e kentsoe litereneng tsa kolofo,lisebelisoa tse lahliloeng, lifilimi, lipoleiti, liphutheloana le likarolo tse ling.
Moloko oa boraro oa PHA-poly 3-hydroxybutyrate-3-hydroxyhexanoate (PHBHHx), ho tloha 1998, Tsinghua University Microbiology Laboratory le Guangdong Jiangmen Biotechnology Development Center li atlehile ho hlahisa hydroxybutyric acid ka lekhetlo la pele lefatšeng Theknoloji ea tlhahiso ea indasteri ea copolymer. PHBHHx ka hydroxycaproic acid, mme e hlokomela tlhahiso e kholo.Ha e bapisoa le PHBV, PHBHHx e na le kristale e tlaase le ductility e phahameng, 'me ts'ebetso ea eona e tšoana le ea polasetiki ea polyethylene (PE).
Moloko oa bone oa PHA-copolymer ea poly-3-hydroxybutyrate le 4-hydroxybutyrate (P3HB4HB kapa P34HB), e na le thepa e ntle ea ho etsa lifilimi le thepa ea 'mele, empa hydrophilicity e futsanehile.PHA ea moloko oa bone e bonts'itse litebello tse ntle tsa ts'ebeliso lefapheng la lipatlisiso tsa boenjiniere ba lisele, joalo ka lisebelisoa tsa scaffold ho boenjiniere ba lisele tsa masapo ho kenya lisele tsa 'mele oa masapo a mesenchymal stem, jj.
Hobane PHA e na le biocompatibility e ntle, biodegradability le ts'ebetso ea mocheso oa polasetiki ka nako e le 'ngoe.Ka hona, e ka sebelisoa e le lisebelisoa tsa biomedical lelisebelisoa tsa ho paka tse senyehangka nako e ts'oanang, e fetohileng sebaka sa lipatlisiso se sebetsang ka ho fetisisa lefapheng la biomaterials lilemong tsa morao tjena.PHA e boetse e na le lisebelisoa tse ngata tsa boleng bo holimo tse kang li-nonlinear optics, piezoelectricity, le thepa ea thibelo ea khase.
Likhoebo tsa WorldChampe tla be e loketse ka linako tsohle ho fana kaLintho tsa ECOho bareki ba tsoang lefats'eng lohle,liatlana tse nang le compostable, mekotla ea korosari, mokotla oa ho tsoa, mokotla oa lithōle,poho, thepa ea litšebeletso tsa lijo, joalo-joalo.
WorldChamp Enterprises ke molekane oa hau ea hloahloa oa ho sebelisa lihlahisoa tsa ECO, mefuta e meng ea lihlahisoa tsa polasetiki tsa setso, ho thibela tšilafalo e tšoeu, ho etsa hore leoatle la rona le lefatše li hloeke le ho hloeka.
Nako ea poso: Feb-10-2023