Cov kws tshawb fawb University Buffalo hauv New York tau tsim cov txheej txheem tshiab uas tso cai rau lawv siv 3D luam kom sai li sai tsim cov hlwb hlwb. Cov kws tshawb nrhiav vam tias lawv txoj kev tuaj yeem siv rau yav tom ntej rau 3D luam ntawm tib neeg cov plab hnyuv siab raum.
Cov ntaub ntawv hais txog txoj kev txhim kho no tau luam tawm hauv cov ntawv tshaj tawm kev noj qab haus huv.
Cov kev txwv uas twb muaj lawm, suav nrog kev luam ntawv me me, ua rau muaj kev sib tw qis ntawm cov qauv luam tawm ". Lub thev naus laus zis tshiab, hu ua Kev Lom Zem Hydrographyor (Fast Hydrogel tshuab luam ntawv, uas ib puag ncig tau qhib, uas yog ib txwm muaj rau lwm txoj hauv kev ntawm 3D luam ntawv.
3D luam ntawv muab cov khoom muaj txiaj ntsig 3D rau kev tsim cov ntaub ntawv uas muaj peev xwm them nyiaj rau cov tsis muaj cov plab hnyuv siab raum, thiab cov kws tshawb fawb cia siab tias muaj ib hnub twg lawv tuaj yeem tsuas yog luam tawm lub cev tag nrho. Cov tswv yim no feem ntau cuam tshuam kev luam tawm ntawm biocompibable hydrogel matrix uas muaj lub hlwb nyob.
Txawm li cas los xij, cov txheej txheem luam tawm tuaj yeem muaj cov kev cuam tshuam tsis zoo ntawm cov hlwb encapsulated, thiab lub sijhawm luam ntawv ntev tsuas yog ua raws li qhov xwm txheej. Ua tsaug rau qhov tau txais kev luam tawm ntawm hydrogel ua ntej, cov thev naus laus zis tshiab pab ua kom muaj sia nyob hauv kev luam ntawv. Cov thev naus laus zis ua haujlwm 10-50 lub sij hawm nrawm dua ntawm cov qauv kev lag luam tso cai rau koj los tsim cov qauv loj, uas siv los ua kom tiav.
Ua tsaug rau kev tswj hwm nyuaj ntawm cov xwm txheej ntawm photopolymerization, thev naus laus zis tuaj yeem ua los ntawm hydrogel matrices ntawm centimeter ntau thiab tsawg rau feeb. Pab pawg kuj tseem tau sim ua tiav lub peev xwm los luam tawm cov khoom siv cov ntshav tawm ntawm cov hlab ntsha ua los ntawm cov txheej txheem 3D luam. Lub network ntawm cov hlab ntshav tsim hauv cov hlab ntshav hauv hydrogel cov qauv tso cai rau cov khoom noj muaj txiaj ntsig kom nkag mus rau hauv kev tau txais cov lej siv tau luam tawm.