Koj tau txiav txim siab tias siv lub ntuj tso tshuaj yog qhov zoo xaiv rau koj. Tej zaum koj xav tias nws yog kev xaiv kev noj qab haus huv rau koj thiab cov khoom noj khoom haus nrog cov khoom xyaw hluavtaws ua rau koj cov tawv nqaij tawv.
Tom qab ntawd koj hnov txog "nanoparticles" nyob rau qee lub ntuj Sunscreens, nrog rau qee qhov kev ceeb toom thiab cov ntaub ntawv tsis sib haum xeeb uas muab koj ncua. Mob siab, puas xaiv ib lub ntuj tsooscrees yuav tsum ua qhov no tsis meej pem?
Nrog ntau cov ntaub ntawv tawm nyob rau ntawd, nws tuaj yeem zoo li muaj kev ntxhov siab. Yog li, cia txiav los ntawm lub suab nrov thiab coj ib qho kev tsis ncaj ncees saib ntawm nanoparticles hauv cov nanoparticles hauv cov tshuaj pleev thaiv hnub, vim li cas koj thiaj li xav tau hauv koj lub tshuaj pleev thaiv hnub thiab thaum koj yuav tsis ua.
Nanoparticles yog dab tsi?
Nanoparticles yog cov me me me me iab ntawm ib qho khoom muab. Nanoparticles muaj tsawg dua 100 nanometers tuab. Txhawm rau muab qee qhov kev xav, ib lub nanometer yog 1000 zaug me dua li cov tuab ntawm ib qho strand ntawm plaub hau.
Thaum cov nanoparticles tuaj yeem tsim tau tsim, xws li Minuscule oppllets ntawm cov tshuaj tsuag hiav txwv piv txwv li hauv lub lab. Rau cov tshuaj pleev thaiv hnub, cov nanoparticles hauv cov lus nug yog zinc oxide thiab titanium dioxide. Cov khoom xyaw no tau tawg rau hauv ultra-zoo hais ua ntej tau txuas ntxiv rau koj cov tshuaj pleev thaiv hnub.
Nanoparticts ua ntej dhau los ua muaj nyob rau hauv Sunscreens nyob rau xyoo 1980, tab sis tsis tshua tau ntes txog rau thaum 1990s. Niaj hnub no, koj tuaj yeem xav tias koj lub tshuaj pleev thaiv lub ntuj nrog zinc oxide thiab / lossis Titanium Dioxide yog nano-qhov iab iab me ntsis tshwj tsis yog muaj lwm yam.
Cov nqe lus "nano" thiab "micronized" yog qhov sib luag. Yog li, cov tshuaj pleev thaiv hnub puas cov "micronized zinc oxide" lossis "Micronized titanium dioxide" daim ntawv lo muaj nanoparticles.
Nanoparticles tsis yog pom nyob rau hauv Sunscreens. Ntau cov khoom lag luam tawv nqaij thiab cov tshuaj pleev ib ce, zoo li cov hauv paus, tshuaj ntxhua, thiab tshuaj txhuam hniav, feem ntau muaj cov khoom xyaw micronized. Nanoparticles tseem siv rau hauv cov khoom siv hluav taws xob, cov ntaub, khawb-resistant iav, thiab ntau dua.
Nanoparticles ua rau muaj kev ua si Sunscreens los ntawm tawm ntawm zaj yeeb yaj kiab dawb rau koj cov tawv nqaij
Thaum xaiv koj lub tshuaj pleev thaiv duab ntuj, koj muaj ob txoj kev xaiv; cov uas muaj nanoparticles thiab cov uas tsis muaj. Qhov sib txawv ntawm ob yuav tshwm sim ntawm koj cov tawv nqaij.
Ob qho tib si titanium dioxide thiab zinc oxide tau pom zoo los ntawm FDA ua cov khoom xyaw hnub ci ntsa iab. Lawv txhua tus muab kev tiv thaiv UV
Zinc oxide thiab titanium dioxide ua hauj lwm los ntawm kev cuam tshuam UV kho kom deb ntawm daim tawv nqaij, tiv thaiv daim tawv nqaij los ntawm lub hnub. Thiab lawv tau zoo heev.
Hauv lawv cov tsis tu ncua, Nano Qized daim ntawv, zinc oxide thiab titanium dioxide yog dawb heev. Thaum koom ua ke rau cov tshuaj pleev thaiv hnub, lawv yuav tawm ib qho pom tseeb opaque dawb zaj duab xis nyob rau daim tawv nqaij. Xav txog ntawm lub neej ntawm lub neej nrog dawb hla tus choj ntawm lub qhov ntswg-yep, uas yog zinc oxide.
Nkag mus nanoparticles. Sunscreen ua nrog micronized zinc oxide thiab titanium dioxide Rub mus rau hauv daim tawv nqaij zoo dua, thiab yuav tsis tawm tom qab saib. Lub ultra-nplua nanoparticles ua rau cov tshuaj pleev thaiv hnub kom tsawg dua os tab sis ua tau zoo.
Feem ntau ntawm cov kev tshawb fawb pom pom nanoparticles hauv Sunscreen muaj kev nyab xeeb
Los ntawm qhov peb paub tam sim no, nws tsis zoo li tias nanoparticles ntawm zinc oxide lossis titanium dioxide muaj kev phom sij rau txhua txoj kev. Txawm li cas los xij, qhov kev cuam tshuam ntev ntawm kev siv micronized zinc oxide thiab titanium dioxide, yog me ntsis ntawm kev paub tsis meej. Hauv lwm lo lus, tsis muaj ntawv ua pov thawj tias kev siv ntev yog muaj kev nyab xeeb, tab sis tsis muaj ntawv pov thawj nws muaj kev phom sij.
Ib txhia tau nug txog kev nyab xeeb ntawm cov micronized hais. Vim tias lawv me me, lawv tuaj yeem nqus tau los ntawm daim tawv nqaij thiab rau hauv lub cev. Ntau npaum li cas yog nqus thiab ua li cas tob heev yog li cas nyob ntawm seb cov me me li cas cov zinc oxide lossis titanium dioxide hais yog, thiab yuav ua li cas lawv xa tawm.
Rau kev ncaws pob, ua li cas rau koj lub cev yog tias zinc oxide lossis titanium dioxide nano-hais yog nqus tau? Hmoov tsis zoo, tsis muaj lus teb meej-txiav rau ntawd, ib yam nkaus.
Muaj cov kev qhia tshwj xeeb uas lawv yuav ntxhov siab thiab ua kom peb lub cev lub hlwb, nrawm nrawm kev laus ob sab hauv thiab sab nraud. Tab sis ntau qhov kev tshawb fawb yuav tsum tau ua kom paub tseeb ib txoj kev los sis lwm qhov.
Titanium Dioxide, thaum nyob rau hauv nws cov hmoov hmoov thiab nqus tau, tau pom tias ua rau mob ntsws hauv cov lab. Micronized titanium dioxide kuj tseem nkag mus rau cov tawv nqaij ntau dua li cov duab zinc oxide ntau dua li cov kab thiab tus choj cov ntshav-lub hlwb.
Nco ntsoov tias, txawm hais tias ntau ntawm cov ntaub ntawv no los ntawm kev noj cov titanium dioxide (vim nws tau pom nyob hauv ntau cov zaub mov npaj thiab khoom qab zib). Los ntawm ntau cov kev tshawb fawb ntawm kev siv tau zoo micronized puranium dioxized thiab zinc oxide, tsuas yog cov khoom xyaw no muaj nyob hauv cov tawv nqaij, thiab txawm tias lawv tau muaj ntau yam tsis muaj txiaj ntsig.
Qhov ntawd txhais tau tias txawm hais tias koj thov cov tshuaj pleev thaiv hnub, lawv yuav tsis txawm nqus tau thawj txheej ntawm daim tawv nqaij. Tus nqi nqus tau sib txawv heev nyob ntawm cov qauv ntawm cov tshuaj pleev thaiv hnub, thiab nws yuav tsis nqus tau yog tias txhua lub sijhawm.
Nrog cov ntaub ntawv peb muaj tam sim no, cov tshuaj pleev thaiv hnub uas muaj cov nanoparticles zoo li muaj kev nyab xeeb thiab ua tau zoo. Tsawg meej yog qhov ua rau cov khoom lag luam ntev yuav muaj ntawm koj txoj kev noj qab haus huv, tshwj xeeb yog tias koj siv cov khoom txhua hnub. Ib zaug ntxiv, tsis muaj ntawv ua pov thawj tias kev siv cov pa o micronized lossis titanium dioxide muaj kev phom sij, peb tsuas yog tsis paub dab tsi nws muaj (yog tias muaj) ntawm koj cov tawv nqaij lossis lub cev.
Ib lo lus los ntawm kev tu siab
Ua ntej, nco ntsoov tias hnav tshuaj pleev thaiv hnub txhua hnub yog ib qho zoo tshaj plaws uas koj tuaj yeem ua rau kev noj qab haus huv ntawm koj cov tawv nqaij (thiab nws yog qhov zoo tshaj plaws tiv thaiv kev laus dhau). Yog li, Kudos rau koj rau kev ua kom muaj zog tiv thaiv koj cov tawv nqaij!
Muaj ntau lub hnub ci ua si muaj, ob nano thiab tsis yog nano xaiv, muaj cov khoom lag luam tawm rau koj. Siv cov tshuaj pleev thaiv hnub nrog micronized (aka nano-patalle) zinc oxide yuav muab cov khoom lag luam uas tsis tshua muaj pasty thiab rubs hauv ntau dua.
Yog tias koj txhawj xeeb txog nano-hais, siv cov tshuaj pleev thaiv hniav tsis muaj micronized yuav muab rau koj cov tawv nqaij uas tsis tshua yuav nqus tau koj cov tawv nqaij. Kev lag luam tawm yog koj pom ib zaj yeeb yaj kiab dawb ntawm koj daim tawv nqaij tom qab thov.
Lwm qhov kev xaiv yog tias koj muaj kev txhawj xeeb yog kom zam tau micronized cov khoom lag luam dioxides, vim tias cov khoom xyaw no yog ib qho uas tau txuas rau cov teeb meem muaj peev xwm ua tau. Nco ntsoov tias, tab sis, uas feem ntau ntawm cov teeb meem no tau los ntawm kev nqus pa lossis cov khoom siv titanium dioxide nanopartics, thiab tsis yog los ntawm daim tawv nqaij nqus.
Ntuj Sunscreen, ob qho tib si micronized thiab tsis, txawv heev nyob rau hauv lawv sib xws thiab hnov ntawm daim tawv nqaij. Yog li, yog tias ib hom lag luam tsis yog koj nyiam, sim lwm kom txog thaum koj pom tus uas ua haujlwm rau koj.
Lub Sijhawm Post: Jul-12-2023