Mwaganiza kuti kugwiritsa ntchito mafuta achilengedwe oteteza ku dzuwa ndi chisankho choyenera kwa inu. Mwina mukuganiza kuti ndi chisankho chabwino kwa inu komanso chilengedwe, kapena mafuta oteteza ku dzuwa okhala ndi zosakaniza zopangidwa amakwiyitsa khungu lanu lomwe limakhudzidwa kwambiri ndi khungu lanu.
Kenako mumamva za "nanoparticles" mu zodzoladzola zachilengedwe za dzuwa, pamodzi ndi mfundo zina zowopsa komanso zotsutsana zokhudza tinthu tating'onoting'ono tomwe timakupangitsani kuti mupume. Ndithudi, kodi kusankha zodzoladzola zachilengedwe za dzuwa kuyenera kukhala kosokoneza chonchi?
Ndi zambiri zomwe zilipo, zitha kuoneka ngati zovuta. Chifukwa chake, tiyeni tichepetse phokosolo ndikuyang'ana mopanda tsankho ma nanoparticles omwe ali mu sunscreen, chitetezo chawo, zifukwa zomwe mungafunire kuti azigwiritsidwe ntchito mu sunscreen yanu komanso nthawi yomwe simungafune.
Kodi Nanoparticles ndi chiyani?
Tinthu tating'onoting'ono kwambiri ta chinthu china. Tinthu tating'onoting'ono tomwe tili ndi makulidwe osakwana 100 nanometers. Kuti tipeze mawonekedwe ena, nanometer ndi yocheperako kuwirikiza ka 1000 kuposa makulidwe a tsitsi limodzi.
Ngakhale tinthu tating'onoting'ono tingapangidwe mwachilengedwe, monga madontho ang'onoang'ono amadzi opopera m'nyanja mwachitsanzo, tinthu tating'onoting'ono timapangidwa mu labu. Pa mafuta oteteza ku dzuwa, tinthu tating'onoting'ono tomwe tikukambidwa ndi zinc oxide ndi titanium dioxide. Zosakaniza izi zimagawidwa m'tinthu tating'onoting'ono kwambiri musanaziwonjezere ku mafuta oteteza ku dzuwa.
Ma nanoparticles anayamba kupezeka mu zodzoladzola za dzuwa m'zaka za m'ma 1980, koma sanagwire ntchito mpaka m'ma 1990. Masiku ano, mutha kuganiza kuti zodzoladzola zanu zachilengedwe za dzuwa zokhala ndi zinc oxide ndi/kapena titanium dioxide ndi tinthu tating'onoting'ono tosaoneka ngati tatchulidwa mwanjira ina.
Mawu akuti "nano" ndi "micronized" ndi ofanana. Chifukwa chake, mafuta oteteza ku dzuwa okhala ndi chizindikiro cha "micronized zinc oxide" kapena "micronized titanium dioxide" ali ndi tinthu tating'onoting'ono.
Tinthu tating'onoting'ono tomwe timapezeka mu zodzoladzola za dzuwa sizimangopezeka mu zodzoladzola zoteteza khungu zokha. Zinthu zambiri zosamalira khungu ndi zodzoladzola, monga maziko, shampu, ndi mano otsukira mano, nthawi zambiri zimakhala ndi zosakaniza zopangidwa ndi micronized. Tinthu tating'onoting'ono tomwe timagwiritsidwanso ntchito mu zamagetsi, nsalu, magalasi osakanda, ndi zina zambiri.
Ma Nanoparticles Amateteza Zophimba Dzuwa Zachilengedwe Kuti Zisasiye Filimu Yoyera Pakhungu Lanu
Mukasankha mafuta anu achilengedwe oteteza ku dzuwa, muli ndi njira ziwiri; omwe ali ndi tinthu tating'onoting'ono tating'onoting'ono ndi omwe alibe. Kusiyana pakati pa awiriwa kudzaonekera pakhungu lanu.
Zonse ziwiri za titanium dioxide ndi zinc oxide zavomerezedwa ndi FDA ngati zosakaniza zachilengedwe zoteteza ku dzuwa. Zonsezi zimapereka chitetezo cha UV chambiri, ngakhale kuti titanium dioxide imagwira ntchito bwino ikaphatikizidwa ndi zinc oxide kapena chosakaniza china chopangidwa ndi dzuwa.
Zinc oxide ndi titanium dioxide zimagwira ntchito pochotsa kuwala kwa UV pakhungu, kuteteza khungu ku dzuwa. Ndipo zimathandiza kwambiri.
Mu mawonekedwe awo wamba, osakhala a nano-size, zinc oxide ndi titanium dioxide ndi zoyera kwambiri. Zikaphatikizidwa mu sunscreen, zimasiya khungu loyera losawoneka bwino. Taganizirani za lifeguard yomwe ili ndi zoyera kudutsa mlatho wa mphuno—inde, imeneyo ndi zinc oxide.
Lowetsani tinthu tating'onoting'ono. Choteteza ku dzuwa chopangidwa ndi zinc oxide ndi titanium dioxide chimapaka pakhungu bwino kwambiri, ndipo sichisiya mawonekedwe osalala. Tinthu tating'onoting'ono kwambiri timapangitsa kuti choteteza ku dzuwa chisakhale chowonekera bwino koma chikhale chogwira ntchito mofanana.
Kafukufuku Wambiri Apeza Kuti Nanoparticles Mu Dzuwa Ndi Otetezeka
Kuchokera pa zomwe tikudziwa tsopano, sizikuwoneka kuti tinthu tating'onoting'ono ta zinc oxide kapena titanium dioxide ndi toopsa mwanjira iliyonse. Komabe, zotsatira za nthawi yayitali zogwiritsa ntchito micronized zinc oxide ndi titanium dioxide, ndi chinsinsi pang'ono. Mwanjira ina, palibe umboni woti kugwiritsa ntchito kwa nthawi yayitali ndikotetezeka kwathunthu, koma palibe umboni woti ndikoopsa.
Ena akayikira za chitetezo cha tinthu tating'onoting'ono timeneti. Chifukwa chakuti ndi tating'ono kwambiri, timatha kuyamwa ndi khungu ndi kulowa m'thupi. Kuchuluka kwa madzi omwe amalowa komanso momwe amalowera mozama kumadalira kuchuluka kwa tinthu ta zinc oxide kapena titanium dioxide, komanso momwe timaperekedwera.
Ponena za kukwawa, kodi chimachitika ndi chiyani m'thupi lanu ngati tinthu tating'onoting'ono ta zinc oxide kapena titanium dioxide timene timapezeka m'thupi? Mwatsoka, palibe yankho lomveka bwino la funsoli.
Pali malingaliro akuti zitha kupsinjika ndikuwononga maselo a thupi lathu, zomwe zimapangitsa kuti ukalamba uchepe mkati ndi kunja. Koma kafukufuku wambiri uyenera kuchitidwa kuti adziwe bwino njira imodzi kapena ina.
Titanium dioxide, ikakhala ndi ufa wake ndipo ikapumidwa, yawonetsedwa kuti imayambitsa khansa ya m'mapapo mwa makoswe a labu. Titanium dioxide yokhala ndi micronized imalowanso pakhungu mozama kwambiri kuposa zinc oxide yokhala ndi micronized, ndipo titanium dioxide yawonetsedwa kuti imadutsa mu placenta ndikutseka chotchinga cha magazi ndi ubongo.
Komabe, kumbukirani kuti zambiri mwa izi zimachokera ku kumwa titanium dioxide (popeza imapezeka muzakudya zambiri ndi maswiti omwe akonzedwa kale). Kuchokera ku maphunziro ambiri a titanium dioxide ndi zinc oxide zomwe zimagwiritsidwa ntchito pamwamba, nthawi zina zimapezeka pakhungu, ndipo ngakhale panthawiyo zinali zochepa kwambiri.
Izi zikutanthauza kuti ngakhale mutagwiritsa ntchito mafuta oteteza ku dzuwa okhala ndi tinthu tating'onoting'ono tating'onoting'ono, sangayamwe ngakhale kupitirira gawo loyamba la khungu. Kuchuluka kwa mafuta oteteza ku dzuwa kumasiyana kwambiri kutengera kapangidwe ka mafuta oteteza ku dzuwa, ndipo ambiri mwa iwo sangayamwe kwambiri ngati atayamwa konse.
Ndi chidziwitso chomwe tili nacho pakadali pano, mafuta oteteza ku dzuwa okhala ndi tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono akuoneka kuti ndi otetezeka komanso othandiza kwambiri. Sizikudziwika bwino momwe kugwiritsa ntchito mankhwalawa kwa nthawi yayitali kungakhudzire thanzi lanu, makamaka ngati mukugwiritsa ntchito mankhwalawa tsiku lililonse. Apanso, palibe umboni woti kugwiritsa ntchito kwa nthawi yayitali zinc oxide kapena titanium dioxide ndi koopsa, sitikudziwa kuti zimakhudza bwanji khungu lanu kapena thupi lanu.
Mawu Ochokera ku Verywell
Choyamba, kumbukirani kuti kuvala mafuta oteteza khungu lanu ku dzuwa tsiku lililonse ndi chimodzi mwa zinthu zabwino kwambiri zomwe mungachite kuti khungu lanu likhale ndi thanzi labwino kwa nthawi yayitali (ndipo ndi njira yabwino kwambiri yopewera ukalamba). Chifukwa chake, tikukuthokozani chifukwa choteteza khungu lanu!
Pali mitundu yambiri ya zodzoladzola zachilengedwe zomwe zilipo, zonse ziwiri za nano ndi zina zosakhala za nano, pali chinthu chomwe chingakuthandizeni. Kugwiritsa ntchito zodzoladzola zoteteza ku dzuwa zokhala ndi micronized (AKA nano-particle) zinc oxide kapena titanium dioxide kudzakupatsani chinthu chomwe sichimakoma kwambiri komanso chopaka bwino.
Ngati mukuda nkhawa ndi tinthu tating'onoting'ono, kugwiritsa ntchito mafuta oteteza khungu omwe si a micronized kudzakupatsani tinthu tating'onoting'ono tomwe sitingalowe m'thupi mwanu. Vuto ndilakuti mudzawona khungu loyera pakhungu lanu mutagwiritsa ntchito.
Njira ina ngati mukuda nkhawa ndi kupewa zinthu zopangidwa ndi titanium dioxide, chifukwa mankhwalawa ndi omwe amayambitsa mavuto azaumoyo. Komabe, kumbukirani kuti mavuto ambiriwa anali chifukwa chopuma kapena kumwa titanium dioxide nanoparticles, osati chifukwa choyamwa khungu.
Mafuta achilengedwe oteteza ku dzuwa, kaya okhala ndi micron kapena ayi, amasiyana kwambiri pakupanga kwawo komanso momwe amaonekera pakhungu. Choncho, ngati mtundu wina sukugwirizana ndi inu, yesani wina mpaka mutapeza womwe ukukuyenererani..
Nthawi yotumizira: Julayi-12-2023