Cov kws tshawb fawb tau tsim lub platform rau kev sib sau ua ke cov khoom siv Nanosized, lossis "nano-cov khoom," ntawm cov organic lossis organic - mus rau hauv cov qauv 3-d. Txawm hais tias kev sib dhos ntawm tus kheej (SA) tau ua tiav los npaj cov txheej txheem nanomaterials, tsim cov qauv sib txawv raws li cov khoom sib txawv ntawm cov ntaub ntawv. Raws li tau tshaj tawm hauv ib daim ntawv luam tawm hnub no nyob rau hauv cov khoom siv, lawv cov txheej txheem tshiab ntawm cov khoom siv 3-d ntawm lub meter), qhov twg tshwj xeeb kho qhov muag, tshuaj lom neeg , thiab lwm yam khoom tawm.
"Ib qho laj thawj yog vim li cas SA tsis yog cov txheej txheem xaiv rau kev siv cov khoom siv 3-d kom muaj kev sib txawv ntawm cov neeg nanocom , tus thawj coj ntawm cov mos mos thiab bio nanomaterial pawg ntawm lub chaw rau kev ua haujlwm nanomaterials (thiab yog tus xibfwb ntawm cov kws tshawb fawb kev lag luam ntawm Columbia Engineering. "Ntawm no, peb da decoupled sa cov txheej txheem los ntawm cov khoom muaj peev xwm los ntawm kev tsim lub cev txhav uas muaj peev xwm enclacic lossis organic nano-cov khoom, thiab txawm tias cov protein thiab enzymes."
Cov kws tshawb fawb cov kws tshawb fawb enthered hluavtaws DNA frames nyob rau hauv cov duab ntawm lub voos xwmfab, octahedron, thiab tetrahedron. Sab hauv cov thav duab yog DNA "caj npab" uas tsuas yog nano-cov khoom nrog cov DN li ua ntu zus tuaj yeem khi rau. Cov ntaub ntawv voxels - kev sib koom ua ke ntawm DNA thav duab thiab nano-khoom - yog cov khoom tsim tsev los ntawm lub tshuab macroscale 3-d qauv tuaj yeem ua tau. Cov thav ntawv txuas rau txhua lwm yam tsis hais dab tsi ntawm Nano-yam yog sab hauv (lossis tsis) raws li kev ua kom tiav raws li ntawm lawv cov kab ntawv. Ua raws li lawv cov duab, cov thav ntawv muaj cov lej sib txawv thiab yog li ua rau cov qauv sib txawv nkaus. Txhua yam nano-cov khoom tau tuav hauv cov thav ntawv coj mus rau cov qauv qauv qauv tshwj xeeb.
Txhawm rau ua kom pom lawv cov kev sib cav sib ceg, cov kws tshawb fawb raug xaiv los ntawm cov khoom siv (Cadicial Ua ntej, lawv tau lees tias yog DNAs ntawm DNAs thav ntawv thiab tsim cov khoom siv ntawm cov twj paj nruag uas muaj cov khoom siv ntawm cryogenic kub rau cov qauv siv roj ntsha. Lawv mam li raug soj ntsuam 3-l lattice qauv ntawm Coherent nyuaj tshaj plaws ntawm lub tebchaws Synchrotron Teeb Pom Kev Tsim Kho ntawm Brookhahaven Lab. Columbia Engineering bykhovs Cov Kws Tshaj Lij Cov Qauv Kev Siv Hluav Taws Xob Tshaj Tawm (raws li cov duab xoo hluav taws xob ua tau zoo tshaj plaws uas cov khoom siv voxs tuaj yeem ua.
"Cov ntaub ntawv voxels no tso cai rau peb pib siv cov tswv yim los ntawm atoms (thiab cov muaju uas lawv tsim, thiab chaw nres tsheb rau cov paj laum ntawm nanoscale," piav qhia kumar.
Cov tub ntxhais kawm hauv Columbia tom qab ntawd qhia tau li cas cov rooj sib txoos yuav siv tau tsav lub koom haum ntawm ob hom khoom siv nrog tshuaj thiab kho qhov muag. Hauv ib kis, lawv co-sib sau ua ke ob qho enzymes, tsim 3-d arrays nrog lub siab ntim cov ntom ntom ntom. Txawm hais tias cov enzymes tseem niaj hnub tsis hloov pauv, lawv tau pom txog plaub npaug kev nce hauv enzymatic kev ua si. Cov "Nanoreactors" tuaj yeem siv rau cov kws yees duab uas siv tau yooj yim thiab ua kom cov khoom siv ntawm cov tshuaj. Rau cov khoom siv kho qhov muag ua qauv qhia, lawv muab ob qho xim sib txawv ntawm QUANSUM DOTS - me me nanocrystals uas tau siv los ua cov TV qhia nrog cov xim siab thiab ci ntsa iab. Cov duab raug coj nrog lub tsom iav fluorescope tau qhia tias cov lus dag tsim kom muaj xim dawb huv hauv qab cov teeb meem (nthwv dej) ntawm lub teeb; Cov cuab yeej no tuaj yeem cia rau kev txhim kho kev daws teeb meem tseem ceeb hauv ntau cov zaub thiab kev sib txuas lus kev sib txuas lus.
"Peb yuav tsum rethink yuav ua li cas thiaj tsim thiab lawv muaj nuj nqi li cas," hais lus dev. "Cov qauv siv hluav taws xob tsis tsim nyog; Cias ntim cov ntaub ntawv uas twb muaj nyob rau hauv txoj kev tshiab tuaj yeem txhim kho lawv cov khoom. Muaj peev xwm, peb lub platform yuav yog ib lub tshuab thev naus laus zis 'dhau ntawm 3-D Luam Ntawv Raug' los tswj cov ntaub ntawv ntawm ntau cov khoom me me thiab tsim cov khoom siv ntau yam thiab tsim muaj ntau yam. Siv tib txoj kev los ua 3-d liices los ntawm qhov xav tau nano-cov khoom uas cov uas yuav cuam tshuam lwm yam uas tsis sib xws, tuaj yeem rub tawm ntawm Nanomanufacturing. "
Cov ntaub ntawv muab los ntawm Doe / Brookhaven National Laboratory. Nco tseg: Cov ntsiab lus yuav raug kho rau cov qauv thiab ntev.
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Lub sij hawm ncua: Jul-04-2022