{"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\/pl\/blog\/news\/metod-2d-ukladki-delaet-vozmozhnost-pechatat-zhivye-organy-na-shag-blizhe","title":{"rendered":"Metoda 2D-uk\u0142adania przybli\u017ca mo\u017cliwo\u015b\u0107 drukowania \u017cywych organ\u00f3w.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

W d\u0105\u017ceniu do uczynienia produkcji biomateria\u0142\u00f3w bardziej dost\u0119pn\u0105, badacze z Uniwersytetu Kalifornijskiego w Berkeley \u0142\u0105cz\u0105 2D drukowanie bioprintingu, robota do monta\u017cu 3D oraz natychmiastowe zamra\u017canie w metodzie, kt\u00f3ra mo\u017ce w przysz\u0142o\u015bci umo\u017cliwi\u0107 drukowanie \u017cywych tkanek, a nawet ca\u0142ych organ\u00f3w. Drukuj\u0105c organy w formie cienkich arkuszy tkanek, a nast\u0119pnie je zamra\u017caj\u0105c i uk\u0142adaj\u0105c jeden na drugim, nowa technologia poprawia prze\u017cywalno\u015b\u0107 kom\u00f3rek biologicznych zar\u00f3wno podczas druku, jak i dalszego przechowywania.<\/p>\n

\"Metoda<\/p>\n

Biomateria\u0142y maj\u0105 ogromny potencja\u0142 dla medycyny przysz\u0142o\u015bci. Drukowanie w 3D przy u\u017cyciu w\u0142asnych kom\u00f3rek macierzystych pacjenta pomo\u017ce w tworzeniu organ\u00f3w do przeszczep\u00f3w, kt\u00f3re b\u0119d\u0105 w pe\u0142ni kompatybilne i nie wywo\u0142aj\u0105 odrzutu.<\/p>\n

Problem polega na tym, \u017ce obecne metody bioprintingu s\u0105 powolne i nie bardzo dobrze skaluj\u0105, poniewa\u017c kom\u00f3rkom trudno jest prze\u017cy\u0107 proces druku bez bardzo \u015bcis\u0142ej kontroli temperatury i \u015brodowiska chemicznego. Dodatkow\u0105 trudno\u015b\u0107 stanowi\u0105 dalsze przechowywanie i transport wydrukowanych tkanek.<\/p>\n

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

Aby pokona\u0107 te problemy, zesp\u00f3\u0142 z Berkeley postanowi\u0142 r\u00f3wnolegle wykona\u0107 proces druku i podzieli\u0107 go na kolejne etapy. To znaczy, zamiast drukowa\u0107 ca\u0142y organ za jednym razem, tkanki s\u0105 drukowane jednocze\u015bnie w dwuwymiarowych warstwach, kt\u00f3re nast\u0119pnie s\u0105 uk\u0142adane przez robota w celu stworzenia ostatecznej tr\u00f3jwymiarowej struktury.<\/p>\n

To podej\u015bcie ju\u017c przyspiesza proces, ale aby zmniejszy\u0107 \u015bmier\u0107 kom\u00f3rek, warstwy natychmiast zanurza si\u0119 w k\u0105pieli kriogenicznej, aby je zamrozi\u0107. Wed\u0142ug zespo\u0142u znacz\u0105co optymalizuje to warunki przetrwania wydrukowanych materia\u0142\u00f3w podczas przechowywania i transportu.<\/p>\n

«Obecnie bioprinting u\u017cywany jest g\u0142\u00f3wnie do tworzenia ma\u0142ych obj\u0119to\u015bci tkanek», — m\u00f3wi Boris Rubinstein, profesor in\u017cynierii mechanicznej. «Problem z bioprintingiem 3D polega na tym, \u017ce jest to bardzo powolny proces, wi\u0119c nie b\u0119dziesz w stanie wydrukowa\u0107 nic du\u017cego, poniewa\u017c materia\u0142y biologiczne zgin\u0105, zanim sko\u0144czysz. Jednym z naszych innowacji jest to, \u017ce zamra\u017camy tkanki w miar\u0119 ich drukowania, dzi\u0119ki czemu materia\u0142 biologiczny jest zachowany ».<\/p>\n

Zesp\u00f3\u0142 przyznaje, \u017ce takie wielowarstwowe podej\u015bcie do druku 3D nie jest nowe, ale jego zastosowanie w biomateria\u0142ach stanowi innowacj\u0119. Pozwala to na drukowanie warstw w jednym miejscu, a nast\u0119pnie transportowanie ich w inne miejsce do monta\u017cu.<\/p>\n

Opr\u00f3cz tworzenia tkanek i organ\u00f3w, ta technika ma tak\u017ce inne zastosowania, na przyk\u0142ad w produkcji mro\u017conych artyku\u0142\u00f3w spo\u017cywczych na skal\u0119 przemys\u0142ow\u0105.<\/p>\n

\r\n \"Odtwarzaj\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

Badanie zosta\u0142o opublikowane w <\/a>Journal of Medical Devices<\/a><\/noindex>.<\/p>\n

<\/p>\n

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\u0179r\u00f3d\u0142o: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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