Isu tinoshandisa makuki kuwedzera ruzivo rwako.Nekuramba uchitsvaga saiti ino unobvuma kushandisa kwedu makuki.Rumwe ruzivo.
Kudhinda mujenari yeAdditive Manufacturing, chikwata chevatsvakurudzi kubva kuManipal Institute of Higher Education muIndia inoshuma kugadzirwa kwe3D yakadhindwa self-wetting contact lens.Parizvino muchikamu che pre-validation, tsvakurudzo ine zvakakosha pakuvandudza chizvarwa chinotevera kuonana lens-yakavakirwa mishonga yekurapa.
Smart Contact Lenses
Kudzidza: Self-Wetting Contact Lenses Uchishandisa Capillary Flow.Image credit: Kichigin/Shutterstock.com
Macontact lens anowanzo shandiswa kugadzirisa chiono uye ane mukana wekuve nyore kupfeka pane magirazi.Pamusoro pezvo, ane zvizoro zvinoshandiswa, sezvo vamwe vanhu vachizviona zvichinyanya kufadza.Pamusoro pekushandiswa kwechinyakare uku, ma lens akaongororwa kuti ashandiswe. mu biomedicine yekugadzira isiri-invasive smart sensing zvishandiso uye poindi-ye-kutarisira diagnostics.
Zvidzidzo zvakawanda zvakaitwa munzvimbo ino uye zvimwe zvitsva zvitsva zvakagadzirwa.Semuyenzaniso, Google lens inyanzvi yekubata lens inogona kushandiswa kutarisa mazinga eglucose mumisodzi uye kupa ruzivo rwekuongorora kune vanhu vane chirwere cheshuga.Intraocular pressure uye ziso. mafambiro anogona kutariswa pachishandiswa smart devices.Nanostructured materials yakaiswa mu smart contact lens-based sensing platforms kuita semasensor.
Zvisinei, kushandiswa kwemichina iyi kunogona kuva kwakaoma, kutadzisa kugadzirwa kwekutengeserana kwe-lens-based platforms.Kupfeka ma-lenses kwenguva yakareba kunogona kukonzera kusagadzikana, uye inowanzooma, zvichiita kuti matambudziko akawanda kune anopfeka.Kubata lenses. zvinokanganisa kubwaira kwechisikigo, zvichikonzera kusakwana kwekuchengetedza mvura uye kukuvadzwa kwenyama yakapfava yeziso remunhu.
Nzira dzechinyakare dzinosanganisira madonhwe emaziso nemapunctal plugs, ayo anonatsiridza kurudziro yemisodzi kuti awane mvura mumaziso.Nzira mbiri itsva dzakagadzirwa mumakore achangopfuura.
Munzira yekutanga, single-layer graphene inoshandiswa kuderedza kubuda kwemvura, kunyange zvazvo nzira iyi inokanganiswa nemaitiro akaoma ekugadzira.Munzira yechipiri, electroosmotic flow inoshandiswa kuchengetedza lens hydrated, kunyange zvazvo nzira iyi inoda kugadzirwa kwehupenyu hunovimbika. mabhatiri.
Contact lenses anowanzo kugadzirwa achishandisa lathe machining, kuumba uye spin casting nzira.Molding uye spin-casting maitiro ane mari-zvinobatsira zvakanakira, asi zvinokanganiswa neakaoma post-processing marapirwo ekuvandudza zvinhu kunamatira kune mold surface.Lathe fabrication is a yakaoma uye inodhura nzira ine zvipingamupinyi zvekugadzira.
Kugadzirwa kwekuwedzera kwakabuda seimwe nzira inovimbisa kune tsika dzechinyakare dzekugadzira lens.Nzvimbo idzi dzinopa zvikomborero zvakadai sekuderedzwa nguva, kusununguka kukuru kwekugadzira, uye kudhura. maitiro aya anoshaikwa.Matambudziko anomuka nekurasikirwa kwemaitiro ekugadzirisa uye kusimba kusina simba kwekubatana kwemashure mushure mekugadzirisa.Kuderedza hukuru hwematanho kunoguma muhutano hwakanaka, hunovandudza kunamatira.
Kunyange zvazvo tsvakurudzo dzakawanda uye dzakawanda dzakatarisa kushandiswa kwe3D nzira dzekudhinda kuti dzigadzire ma-lens, pane kushayikwa kwekukurukurirana pamusoro pekugadzira molds kana ichienzaniswa nema lens pachawo.Kubatanidza teknolojia yekudhinda ye3D nemaitiro ekugadzirwa kwechinyakare kunopa zvakanakisisa pasi rose.
Vanyori vakashandisa nzira itsva ye 3D kudhinda self-wetting contact lenses.Chimiro chikuru chakagadzirwa pachishandiswa 3D kudhinda, uye muenzaniso wakagadzirwa uchishandisa AutoCAD uye stereolithography, yakajairika 3D kudhinda nzira.Dhayamita yekufa ndeye 15 mm uye iyo base arc ndeye 8.5 mm.Sizi yenhanho mukugadzira maitiro ndeye 10 µm chete, kukunda matambudziko echinyakare ne 3D yakadhindwa contact lenses.
Smart Contact Lenses
Nzvimbo dzemaziso dzema lenzi akagadzirwa anokwenenzverwa mushure mekudhindwa uye kudzokororwa paPDMS, yakapfava elastomeric material.Iyo nzira inoshandiswa padanho iri inzira yakapfava yelithography.Chinhu chakakosha cheakadhindwa malenses ekusangana kuvepo kweakakombama microchannels mukati mechimiro. , iyo inovapa kukwanisa kuzvidzora.Uyezve, lens ine chiedza chakanaka chekufambisa.
Vanyori vakaona kuti kugadziriswa kwechigadziro chechimiro chakaratidza zviyero zve microchannels, ine mitsara yakareba yakadhindwa pakati pe lens uye mapfupi marefu pamicheto yezvakadhindwa zvivakwa.Zvisinei, pazvakaiswa oksijeni plasma, zvivako zvakava hydrophilic. , kufambisa capillary-driven fluid kuyerera uye kunyorovesa zvimiro zvakadhindwa.
Nekuda kwekushaikwa kwehukuru hwemicrochannel uye kutonga kwekugovera, mamicrochannel ane akanyatsotsanangurwa mamicrochannels uye akaderedzwa nhanho mhedzisiro akadhindwa pane master chimiro ndokuzodzokororwa pane yekuonana lens. kunzvenga kurasikirwa kwekufambiswa kwechiedza.
Vanyori vanoti nzira yavo itsva haingogadzirisi kukwanisa kwekuzvinyorovesa kweakadhindwa contact lenses, asi inopawo chikuva chekuvandudza mune ramangwana re lab-on-a-chip-enabled contact lenses.Izvi zvinovhura mukova wekushandiswa kwavo sekushanda kwechokwadi. -nguva biomarker yekuona zvikumbiro.Pazere, chidzidzo ichi chinopa inonakidza kutungamira kutungamira kune ramangwana rekuonana lens-based biomedical devices.
Nguva yekutumira: Kubvumbi-30-2022
