Raws li xov xwm txawv teb chaws New Atlas, txawm hais tias kev cog hniav yog ib qho kev hloov mus sij hawm ntev rau cov hniav hniav, yog tias muaj kab mob pos hniav tshwm sim, lawv yuav tsum tau hloov los ntawm kev phais. Yog li ntawd, cov kws tshawb fawb tab tom ua haujlwm rau kev cog qoob loo zoo dua uas tuaj yeem tsim hluav taws xob los ntawm kev txav ntawm qhov ncauj.
Tam sim no, Penn State University tus pab xibfwb Geelsu Hwang thiab nws cov npoj yaig tab tom tsim qhov kev cog ntoo no, uas muaj cov cog ntoo zoo li nws tus kheej (dental crown), sab hauv uas yog lub cev steel, uas muaj lub voj voog rectifier, roj teeb thiab lub cev. nplhaib ncig lub ze-infrared micro LED ntawm nws lub hauv paus raug. Lub hauv qab protrudes los ntawm lub hauv qab ntawm lub crown thiab yog tsau rau tus neeg mob' lub puab tsaig nrog screws.
Lub crown yog tsim los ntawm kev sib txuas cov hniav nrog nanoparticles ntawm ib qho inorganic compound hu ua barium titanate. Cov tom kawg yog cov khoom siv piezoelectric, uas txhais tau hais tias nws tsim cov nqi hluav taws xob hauv kev teb rau cov neeg kho tshuab kev ntxhov siab.
Cov kws tshawb fawb vam tias kev ua xws li zom yog txaus los tsim kom muaj hluav taws xob thiab khaws cia rau hauv lub roj teeb. Lub roj teeb yuav ua rau lub sijhawm ua lub zog ntawm micro LEDs kom lawv tuaj yeem pom cov pos hniav nyob ib puag ncig. Cov kev tshawb fawb yav dhau los tau pom tias qhov kev kho lub teeb pom kev zoo no, hu ua phototherapy, tuaj yeem pab txo qhov mob thiab ua kom cov pos hniav puas los ntawm kev kis kab mob.
Tsis tas li ntawd, pab pawg cov kev sim kuaj pom tau hais tias qhov tsis zoo ntawm qhov chaw ntawm barium titanate particles repels lub cell phab ntsa tsis zoo ntawm qhov ncauj Streptococcus mutans. Qhov no txhais tau hais tias cov kab mob no yuav tsum tsis txhob ua raws li lub kaus mom thiab tsim cov biofilm ntawm cov hniav nyiaj hniav kub raws li peb paub nws - yog li txo qhov muaj feem kis tau tus mob thawj zaug.
Cov kws tshawb fawb tau thov tias cov khoom siv resin / nanoparticle sib xyaw ua ke tswj cov nyhuv piezoelectric thaum ntau qhov kev sim. Nws kuj muab cov cuab yeej siv zog zoo ib yam li cov khoom siv kho hniav uas twb muaj lawm. Tsis tas li ntawd, barium titanate nanoparticles yuav tsis tawm ntawm nws thiab yuav tsis ua mob rau cov pos hniav noj qab haus huv.
& quot; Peb cia siab tias yuav txhim kho qhov kev cog hniav no ntxiv thiab thaum kawg pom nws cov khoom lag luam kom nws tuaj yeem siv rau hauv kev kho hniav," Hwang hais. Qhov kev tshawb fawb no tau piav qhia nyob rau hauv ib daim ntawv uas nyuam qhuav luam tawm hauv phau ntawv xov xwm ACS Applied Materials and Interface.
