{"id":32522,"date":"2019-10-31T21:47:31","date_gmt":"2019-10-31T18:47:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/metod-2d-ukladki-delaet-vozmozhnost-pechatat-zhivye-organy-na-shag-blizhe\/"},"modified":"2019-10-31T21:47:31","modified_gmt":"2019-10-31T18:47:31","slug":"metod-2d-ukladki-delaet-vozmozhnost-pechatat-zhivye-organy-na-shag-blizhe","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/metod-2d-ukladki-delaet-vozmozhnost-pechatat-zhivye-organy-na-shag-blizhe","title":{"rendered":"Metoda de \u00eembinare 2D aduce mai aproape posibilitatea de a printa organe vii","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

C\u0103ut\u00e2nd s\u0103 fac\u0103 produc\u021bia de biomateriale mai accesibil\u0103, cercet\u0103torii de la Universitatea din California, Berkeley, combin\u0103 bioprintarea 2D, o bra\u021b robotic pentru asamblare 3D \u0219i congelarea instantanee \u00eentr-o metod\u0103 care ar putea permite odat\u0103 printarea de \u021besuturi vii \u0219i chiar organe \u00eentregi. Prin printarea organelor sub form\u0103 de foi sub\u021biri de \u021besut, apoi congel\u00e2ndu-le \u0219i a\u0219ez\u00e2ndu-le una peste alta, noua tehnologie \u00eembun\u0103t\u0103\u021be\u0219te supravie\u021buirea celulelor biotipice at\u00e2t \u00een timpul print\u0103rii, c\u00e2t \u0219i \u00een timpul stoc\u0103rii ulterioare.<\/p>\n

\"Metoda<\/p>\n

Biomaterialele au un poten\u021bial uria\u0219 pentru medicina viitorului. Printarea 3D cu celulele stem proprii ale pacientului va ajuta la crearea de organe pentru transplant care vor fi complet compatibile \u0219i nu vor provoca respingere.<\/p>\n

Problema este c\u0103 metodele actuale de bioprintare sunt lente \u0219i nu se scalreaz\u0103 foarte bine, deoarece celulele au dificult\u0103\u021bi \u00een a supravie\u021bui procesului de printare f\u0103r\u0103 un control foarte strict al temperaturii \u0219i mediului chimic. De asemenea, complexitatea este sporit\u0103 de stocarea \u0219i transportul ulterioare ale \u021besuturilor imprimate.<\/p>\n

<\/center><\/p>\n

Pentru a dep\u0103\u0219i aceste probleme, echipa Berkeley a decis s\u0103 paraleleze procesul de imprimare \u0219i s\u0103-l \u00eempart\u0103 \u00een etape secven\u021biale. Adic\u0103, \u00een loc s\u0103 imprime \u00eentregul organ deodat\u0103, \u021besuturile sunt imprimate simultan \u00een straturi bidimensionale, care sunt apoi a\u0219ezate cu ajutorul unui bra\u021b robotic pentru a crea structura tridimensional\u0103 final\u0103.<\/p>\n

Aceast\u0103 abordare deja accelereaz\u0103 procesul, dar pentru a reduce moartea celular\u0103, straturile sunt imediat scufundate \u00eentr-o baie criogenic\u0103 pentru a fi congelate. Conform echipei, aceasta optimizeaz\u0103 semnificativ condi\u021biile pentru supravie\u021buirea materialelor imprimate \u00een timpul stoc\u0103rii \u0219i transportului.<\/p>\n

\u201e\u00cen prezent, bioprintarea este utilizat\u0103 \u00een principal pentru a crea un volum mic de \u021besut\u201d, spune Boris Rubinsky, profesor de inginerie mecanic\u0103. \u201eProblema cu bioprintarea 3D este c\u0103 acesta este un proces foarte lent, astfel c\u0103 nu po\u021bi imprima nimic mare, pentru c\u0103 materialele biologice vor muri p\u00e2n\u0103 c\u00e2nd termini. Una dintre inova\u021biile noastre este c\u0103 \u00eenghe\u021b\u0103m \u021besuturile pe m\u0103sur\u0103 ce sunt imprimate, astfel \u00eenc\u00e2t materialul biologie s\u0103 fie p\u0103strat.\u201d<\/p>\n

Echipa recunoa\u0219te c\u0103 o astfel de abordare stratificat\u0103 a imprim\u0103rii 3D nu este nou\u0103, dar aplicarea ei la biomateriale reprezint\u0103 o inova\u021bie. Acest lucru permite imprimarea straturilor \u00eentr-un loc, iar apoi transportarea acestora \u00een altul pentru asamblare.<\/p>\n

Pe l\u00e2ng\u0103 fabricarea de \u021besuturi \u0219i organe, aceast\u0103 tehnic\u0103 are \u0219i alte aplica\u021bii, de exemplu, \u00een produc\u021bia de alimente congelate la scar\u0103 industrial\u0103.<\/p>\n

\r\n \"Reda\u021bi\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

Studiul a fost publicat \u00een <\/a>Journal of Medical Devices<\/a><\/noindex>.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Sursa: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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