Koj tau txiav txim siab tias kev siv tshuaj pleev thaiv hnub uas yog ntuj tsim yog qhov kev xaiv zoo rau koj. Tej zaum koj xav tias nws yog qhov kev xaiv zoo tshaj plaws rau koj thiab ib puag ncig, lossis tshuaj pleev thaiv hnub uas muaj cov khoom xyaw ua rau koj cov tawv nqaij rhiab heev khaus.
Ces koj hnov txog "nanoparticles" nyob rau hauv qee cov tshuaj pleev thaiv hnub ntuj, nrog rau qee cov ntaub ntawv txaus ntshai thiab sib txawv txog cov khoom me me uas ua rau koj nres ib pliag. Tiag tiag, puas yog kev xaiv cov tshuaj pleev thaiv hnub ntuj yuav tsum ua rau tsis meej pem ua luaj li no?
Muaj ntau cov ntaub ntawv nyob ntawd, nws yuav zoo li nyuaj heev. Yog li, cia peb txiav cov suab nrov thiab saib cov nanoparticles hauv cov tshuaj pleev thaiv hnub, lawv txoj kev nyab xeeb, cov laj thawj vim li cas koj thiaj xav tau lawv hauv koj cov tshuaj pleev thaiv hnub thiab thaum twg koj tsis xav tau.
Cov Nanoparticles Yog Dab Tsi?
Cov nanoparticles yog cov khoom me me heev ntawm ib yam khoom. Cov nanoparticles muaj qhov tuab tsawg dua 100 nanometers. Yuav kom muab qee qhov kev xav, ib nanometer yog 1000 npaug me dua qhov tuab ntawm ib txoj plaub hau.
Txawm hais tias cov nanoparticles tuaj yeem tsim tau ntuj tsim, zoo li cov tee dej me me ntawm cov tshuaj tsuag dej hiav txwv piv txwv li, feem ntau cov nanoparticles yog tsim nyob rau hauv chav kuaj. Rau cov tshuaj pleev thaiv hnub, cov nanoparticles hauv nqe lus nug yog zinc oxide thiab titanium dioxide. Cov khoom xyaw no raug rhuav tshem ua cov khoom me me ua ntej ntxiv rau koj cov tshuaj pleev thaiv hnub.
Cov nanoparticles thawj zaug muaj nyob rau hauv cov tshuaj pleev thaiv hnub xyoo 1980, tab sis tsis tau txais kev pom zoo kom txog rau xyoo 1990. Niaj hnub no, koj tuaj yeem xav tias koj cov tshuaj pleev thaiv hnub ntuj nrog zinc oxide thiab / lossis titanium dioxide yog cov khoom me me nano tshwj tsis yog tias tau teev tseg lwm yam.
Cov lus "nano" thiab "micronized" yog cov lus sib xws. Yog li, cov tshuaj pleev thaiv hnub uas muaj daim ntawv lo "micronized zinc oxide" lossis "micronized titanium dioxide" muaj cov nanoparticles.
Cov nanoparticles tsis yog tsuas pom muaj nyob rau hauv cov tshuaj pleev thaiv hnub xwb. Ntau yam khoom siv rau kev saib xyuas tawv nqaij thiab cov khoom siv pleev kom zoo nkauj, xws li cov tshuaj pleev rau lub hauv paus, tshuaj zawv plaub hau, thiab tshuaj txhuam hniav, feem ntau muaj cov khoom xyaw me me. Cov nanoparticles kuj tseem siv rau hauv cov khoom siv hluav taws xob, cov ntaub, cov iav uas tiv taus khawb, thiab ntau ntxiv.
Cov Nanoparticles Tiv Thaiv Cov Tshuaj Pleev Xim Ntuj Tsis Pub Tawm Ib Zaj Duab Dawb Ntawm Koj Cov Tawv Nqaij
Thaum koj xaiv koj cov tshuaj pleev thaiv hnub ntuj, koj muaj ob txoj kev xaiv; cov uas muaj nanoparticles thiab cov uas tsis muaj. Qhov txawv ntawm ob qho no yuav tshwm sim rau ntawm koj daim tawv nqaij.
Ob qho tib si titanium dioxide thiab zinc oxide tau txais kev pom zoo los ntawm FDA ua cov khoom xyaw ntuj tsim rau kev tiv thaiv hnub. Lawv txhua tus muab kev tiv thaiv UV dav dav, txawm hais tias titanium dioxide ua haujlwm zoo tshaj plaws thaum muab sib xyaw nrog zinc oxide lossis lwm yam khoom xyaw tshuaj tiv thaiv hnub.
Zinc oxide thiab titanium dioxide ua haujlwm los ntawm kev cuam tshuam cov duab UV tawm ntawm daim tawv nqaij, tiv thaiv daim tawv nqaij ntawm lub hnub. Thiab lawv ua haujlwm tau zoo heev.
Hauv lawv daim ntawv ib txwm, tsis yog nano, zinc oxide thiab titanium dioxide yog dawb heev. Thaum muab tso rau hauv tshuaj pleev thaiv hnub, lawv yuav tawm ib daim zaj duab xis dawb opaque hla daim tawv nqaij. Xav txog tus neeg cawm siav stereotypical nrog dawb hla tus choj ntawm lub qhov ntswg - yog, qhov ntawd yog zinc oxide.
Siv cov nanoparticles. Cov tshuaj pleev thaiv hnub uas ua los ntawm cov micronized zinc oxide thiab titanium dioxide txhuam rau hauv daim tawv nqaij zoo dua, thiab yuav tsis tawm qhov zoo li pasty. Cov nanoparticles me me ua rau cov tshuaj pleev thaiv hnub tsis pom tseeb tab sis zoo ib yam.
Feem Ntau ntawm Kev Tshawb Fawb Pom Nanoparticles hauv Sunscreen Safe
Los ntawm qhov peb paub tam sim no, nws zoo li tsis muaj cov nanoparticles ntawm zinc oxide lossis titanium dioxide ua rau muaj kev phom sij li cas. Txawm li cas los xij, cov teebmeem mus sij hawm ntev ntawm kev siv micronized zinc oxide thiab titanium dioxide, yog qhov paub tsis meej me ntsis. Hauv lwm lo lus, tsis muaj pov thawj tias kev siv mus sij hawm ntev muaj kev nyab xeeb kiag li, tab sis tsis muaj pov thawj tias nws ua rau muaj kev phom sij thiab.
Muaj ib txhia neeg tau nug txog kev nyab xeeb ntawm cov khoom me me no. Vim tias lawv me heev, lawv tuaj yeem raug nqus los ntawm daim tawv nqaij thiab nkag mus rau hauv lub cev. Ntau npaum li cas raug nqus thiab lawv nkag mus tob npaum li cas nyob ntawm seb cov zinc oxide lossis titanium dioxide me npaum li cas, thiab lawv raug xa mus li cas.
Yog tias cov zinc oxide lossis titanium dioxide nano-particles raug nqus mus rau hauv koj lub cev, yuav ua li cas rau koj lub cev? Hmoov tsis zoo, tsis muaj lus teb meej rau qhov ntawd.
Muaj kev xav tias tej zaum lawv yuav ua rau peb lub cev cov cell ntxhov siab thiab ua rau peb lub cev laus sai dua sab hauv thiab sab nraud. Tiam sis yuav tsum tau tshawb nrhiav ntxiv kom paub meej tias yog li cas.
Titanium dioxide, thaum nws nyob hauv nws daim ntawv hmoov thiab nqus pa, tau pom tias ua rau mob qog noj ntshav hauv cov nas hauv chav kuaj. Titanium dioxide uas muaj cov micronized kuj nkag mus rau hauv daim tawv nqaij tob dua li cov zinc oxide uas muaj cov micronized, thiab titanium dioxide tau pom tias hla dhau lub placenta thiab txuas cov ntshav-lub hlwb thaiv.
Nco ntsoov tias, feem ntau ntawm cov ntaub ntawv no yog los ntawm kev noj cov titanium dioxide (vim nws pom muaj nyob rau hauv ntau yam khoom noj thiab khoom qab zib uas tau ntim ua ntej). Los ntawm ntau txoj kev tshawb fawb txog cov tshuaj titanium dioxide thiab zinc oxide uas tau siv rau ntawm daim tawv nqaij, tsuas yog qee zaum xwb cov khoom xyaw no pom muaj nyob rau hauv daim tawv nqaij, thiab txawm tias thaum ntawd lawv tseem muaj cov tshuaj tsawg heev.
Qhov ntawd txhais tau tias txawm tias koj siv tshuaj pleev thaiv hnub uas muaj cov nanoparticles los xij, lawv yuav tsis nqus dhau thawj txheej ntawm daim tawv nqaij. Qhov ntau npaum li cas uas nqus tau sib txawv heev nyob ntawm seb cov tshuaj pleev thaiv hnub yog dab tsi, thiab feem ntau ntawm nws yuav tsis nqus tau tob yog tias muaj.
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 zoo heev. Tsis meej yog qhov cuam tshuam ntawm kev siv cov khoom mus sij hawm ntev rau koj txoj kev noj qab haus huv, tshwj xeeb tshaj yog tias koj siv cov khoom txhua hnub. Dua li no, tsis muaj pov thawj tias kev siv cov zinc oxide lossis titanium dioxide mus sij hawm ntev yog qhov txaus ntshai, peb tsuas yog tsis paub tias nws muaj qhov cuam tshuam li cas (yog tias muaj) rau koj daim tawv nqaij lossis lub cev.
Ib Lo Lus Los Ntawm Verywell
Ua ntej, nco ntsoov tias kev siv tshuaj pleev thaiv hnub txhua hnub yog ib qho zoo tshaj plaws uas koj ua tau rau kev noj qab haus huv mus sij hawm ntev ntawm koj daim tawv nqaij (thiab nws yog txoj kev tiv thaiv kev laus zoo tshaj plaws thiab). Yog li, qhuas koj rau kev ua haujlwm tiv thaiv koj daim tawv nqaij!
Muaj ntau hom tshuaj pleev thaiv hnub uas ntuj tsim, ob hom yog nano thiab hom tsis yog nano, yeej muaj ib yam khoom rau koj siv. Siv cov tshuaj pleev thaiv hnub uas muaj zinc oxide lossis titanium dioxide uas me me (AKA nano-particle) yuav ua rau koj cov tshuaj pleev thaiv hnub tsis nplaum thiab yooj yim txhuam.
Yog tias koj txhawj xeeb txog cov nano-particles, siv cov tshuaj pleev thaiv hnub uas tsis muaj micronized yuav ua rau koj muaj cov khoom loj dua uas yuav tsis nqus tau los ntawm koj daim tawv nqaij. Qhov kev pauv pauv yog koj yuav pom ib daim zaj duab xis dawb ntawm koj daim tawv nqaij tom qab siv.
Yog tias koj txhawj xeeb, lwm txoj kev xaiv yog kom tsis txhob siv cov khoom uas muaj cov titanium dioxide me me, vim tias cov khoom xyaw no yog qhov uas tau txuas nrog rau cov teeb meem kev noj qab haus huv. Txawm li cas los xij, nco ntsoov tias feem ntau ntawm cov teeb meem no yog los ntawm kev nqus lossis noj cov titanium dioxide nanoparticles, thiab tsis yog los ntawm daim tawv nqaij nqus.
Cov tshuaj pleev thaiv hnub ntuj, ob qho tib si micronized thiab tsis yog, sib txawv heev ntawm lawv qhov sib xws thiab kev hnov ntawm daim tawv nqaij. Yog li, yog tias ib hom tsis haum koj nyiam, sim lwm hom kom txog thaum koj pom qhov uas ua haujlwm rau koj..
Lub sijhawm tshaj tawm: Lub Xya Hli-12-2023