Duke p\u00ebr t\u00eb b\u00ebr\u00eb prodhimin e biomaterialeve m\u00eb t\u00eb qassh\u00ebm, studiuesit nga Universiteti i Kalifornis\u00eb n\u00eb Berkeley kombinojn\u00eb 2D printimin e biove, nj\u00eb dor\u00eb robotike p\u00ebr nd\u00ebrtimin 3D dhe ngrirjen e menj\u00ebhershme n\u00eb nj\u00eb metod\u00eb q\u00eb mund t\u00eb lejoj\u00eb nj\u00eb dit\u00eb printimin e indeve t\u00eb gjalla dhe madje organeve t\u00eb plota. Duke printuar organet n\u00eb forma t\u00eb holla t\u00eb indeve dhe pastaj duke i ngrir\u00eb ato dhe duke i vendosur radhazi sip\u00ebr nj\u00ebri-tjetrit, teknologjia e re p\u00ebrmir\u00ebson mbijetes\u00ebn e qelizave biologjike si gjat\u00eb printimit ashtu edhe gjat\u00eb ruajtjes s\u00eb m\u00ebtejshme.<\/p>\n
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Biomaterialet kan\u00eb nj\u00eb potencial t\u00eb madh p\u00ebr mjek\u00ebsin\u00eb e s\u00eb ardhmes. Printimi 3D duke p\u00ebrdorur qelizat staminale t\u00eb pacientit do t\u00eb ndihmoj\u00eb n\u00eb krijimin e organeve p\u00ebr transplantim, t\u00eb cilat do t\u00eb jen\u00eb plot\u00ebsisht t\u00eb p\u00ebrshtatshme dhe nuk do t\u00eb shkaktojn\u00eb refuzim.<\/p>\n
Problemi \u00ebsht\u00eb se metodat aktuale t\u00eb biop\u00ebrkthimit jan\u00eb t\u00eb ngadalta dhe nuk kan\u00eb shum\u00eb shkall\u00ebzim, sepse qelizave u v\u00ebshtir\u00ebson t\u00eb mbijetojn\u00eb procesin e printimit pa nj\u00eb kontroll t\u00eb fort\u00eb t\u00eb temperatur\u00ebs dhe mjedisit kimik. Gjithashtu, ruajtja e m\u00ebtejshme dhe transporti i indeve t\u00eb printuara r\u00ebndojn\u00eb situat\u00ebn.<\/p>\n
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P\u00ebr t\u00eb p\u00ebrballuar k\u00ebto sfida, ekipi i Berkley-t vendosi t\u00eb p\u00ebrshpejtoj\u00eb procesin e printimit dhe ta ndaj\u00eb at\u00eb n\u00eb etapa t\u00eb ndryshme. K\u00ebshtu, n\u00eb vend q\u00eb t\u00eb printohet e gjith\u00eb struktura nj\u00ebher\u00ebsh, indet printohen n\u00eb shtresa dy-dimensionale q\u00eb m\u00eb pas vendosen nga nj\u00eb dor\u00eb robotike p\u00ebr t\u00eb krijuar struktur\u00ebn p\u00ebrfundimtare tre-dimensionale.<\/p>\n
Ky qasje tashm\u00eb e shpejton procesin, por p\u00ebr t\u00eb zvog\u00ebluar vdekjen e qelizave, shtresat menj\u00ebher\u00eb zhytet n\u00eb nj\u00eb banj\u00eb kriogjenike p\u00ebr t'u ngrir\u00eb. Sipas ekipit, kjo optimizon ndjesh\u00ebm kushtet p\u00ebr mbijetes\u00ebn e materialeve t\u00eb printuara gjat\u00eb ruajtjes dhe transportit.<\/p>\n
\u00abAktualisht, biop\u00ebr\u00e7imi p\u00ebrdoret kryesisht p\u00ebr krijimin e volumit t\u00eb vog\u00ebl t\u00eb indit\u00bb, thot\u00eb Boris Rubinsky, profesor i inxhinieris\u00eb mekanike. \u00abProblemi me biop\u00ebr\u00e7imin 3D \u00ebsht\u00eb se \u00ebsht\u00eb nj\u00eb proces shum\u00eb i ngadalt\u00eb, prandaj nuk mund t\u00eb printoni asgj\u00eb t\u00eb madhe, sepse materialet biologjike do t\u00eb vdesin deri n\u00eb at\u00eb koh\u00eb kur t\u00eb p\u00ebrfundoni. Nj\u00eb nga inovacionet tona \u00ebsht\u00eb se ne ngrijm\u00eb indet gjat\u00eb procesit t\u00eb printimit, k\u00ebshtu q\u00eb materiali biologjik ruhet\u00bb.<\/p>\n
Ekipa pranon se nj\u00eb qasje e till\u00eb shum\u00eb-shtresore ndaj shtypjes 3D nuk \u00ebsht\u00eb e re, por aplikimi i saj n\u00eb biomateriale \u00ebsht\u00eb nj\u00eb inovacion. Kjo lejon q\u00eb shtresat t\u00eb printohen n\u00eb nj\u00eb vend dhe m\u00eb pas t\u00eb transportohen n\u00eb nj\u00eb tjet\u00ebr p\u00ebr montim.<\/p>\n
P\u00ebrve\u00e7 krijimit t\u00eb indeve dhe organeve, kjo teknik\u00eb ka edhe aplicime t\u00eb tjera, p\u00ebr shembull, n\u00eb prodhimin e ushqimeve t\u00eb ngrira n\u00eb shkall\u00eb industriale.<\/p>\n
![\"Metoda](\"\/wp-content\/uploads\/2019\/04\/1102c888307274cc6cea3f2711301437.jpeg\")
<\/p>\n![\"Luaj](\"https:\/\/img.youtube.com\/vi\/eXxBrvf9qJE\/hqdefault.jpg\")
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