Kodi Pali Nanoparticles Zosungika? Ndipo chifukwa chiyani ali muwotchi yanga?
Mudasankha kuti kugwiritsa ntchito mawindo a dzuwa ndibwino kwa inu. Mwinamwake mukuganiza kuti ndibwino kwa inu ndi chilengedwe, kapena kutsegula kwa dzuwa ndi zopangidwe zowonongeka kumapweteketsa khungu lanu lodziwika bwino.
Kenaka mumamva za "nanoparticles" m'mawindo ena a dzuwa, pamodzi ndi mfundo zina zowopsya ndi zosiyana zonena za particles zomwe zimakupatsani mpume.
Mwachidziwikiratu, kusankha masewera a dzuwa akuyenera kusokoneza izi?
Ndi zambiri zambiri kunja uko, zikhoza kuwoneka zolemetsa. Choncho, tiyeni tipewe phokoso ndikuyang'ana mosayang'ana nanoparticles mu sunscreen, chitetezo chawo, zifukwa zomwe mumazifunira pawindo lanu la dzuwa komanso pamene simudzatero.
Kodi Nanoparticles N'chiyani?
Nanoparticles ndi zodabwitsa kwambiri tizilombo toyambitsa matenda. Nanoparticles ndi osakwana 100 nanometers wandiweyani. Kuti apereke lingaliro, n nanometer ndi yaying'ono nthawi 1000 kuposa kukula kwake kwa tsitsi limodzi.
Ngakhale kuti nanoparticles ikhoza kulengedwa mwachibadwa, ngati madontho amchere a nyanja, chitsanzo, zambiri za nanoparticles zimapangidwa mu labu. Pakuti sunscreen, nanoparticles mu funso ndi zinc oxide ndi titaniyamu dioxide. Zosakanizazi zimagwiritsidwa ntchito kukhala tinthu tambirimbiri tambirimbiri tisanayambe kuwonjezera pa khungu lanu la dzuwa.
Nanoparticles inayamba kupezeka mu sunscreens mu 1980, koma siinagwirebe mpaka zaka za m'ma 1990.
Lero, mukhoza kuganiza kuti dzuwa lanu limakhala ndi zinc oxide ndi / kapena titaniyamu dioxyde ndi nano-size particles, kupatulapo.
Mawu akuti "nano" ndi "micronized" ndi ofanana. Choncho, kuwala kwa dzuwa kotchedwa "micronised zinc oxide" kapena "micronized titanium dioxide" lili ndi nanoparticles.
Nanoparticles sichipezeka mu sunscreens.
Kusamalira khungu zambiri ndi zodzoladzola, monga maziko, shampoo, ndi mankhwala opangira mano, nthawi zambiri zimakhala ndi zinthu zogwiritsira ntchito. Nanoparticles imagwiritsidwanso ntchito pa zamagetsi, nsalu, magalasi osagwira ntchito, ndi zina zambiri.
Nanoparticles Sungani Zojambula Zamasamba Zochokera Kumasiya Mafilimu Oyera pa Khungu Lanu
Mukasankha sunscreen yanu yachibadwa, muli ndi njira ziwiri; omwe ali ndi nanoparticles ndi omwe alibe. Kusiyanitsa pakati pa ziwirizi kudzaonekera pa khungu lanu.
Zonse ziwiri za titanium dioxide ndi zinc oxide zimavomerezedwa ndi FDA monga zowonetsera dzuwa . Aliyense amapereka wotetezera UV chitetezo, ngakhale titaniyamu ya dioxide imagwira ntchito bwino ngati ili ndi zinayi oxide kapena yowonjezera dzuwa.
Zinc oxide ndi titaniyamu dioxide amagwira ntchito pogwiritsa ntchito kuwala kwa dzuwa kutali ndi khungu, kuteteza khungu ku dzuwa. Ndipo iwo ali othandiza kwambiri.
Muwonekedwe wawo wokhazikika, wosakhala ndi nano waukulu, zinc oxide ndi titaniyamu dioxide ndi zoyera kwambiri. Akamaphatikizidwa muwotchi, amasiya filimu yoyera yofiira pakhungu. Ganizilani za omvera otetezeka omwe ali oyera pambali pa mlatho wa mphuno-yep, ndiyo zinc oxide.
Lowani nanoparticles. Dzuŵa la dzuwa lopangidwa ndi micidized oxidide ya zinc ndi titanium dioxide pogwiritsa ntchito khungu bwino kwambiri, ndipo sichidzasiya kuyang'ana.
The ultra-zabwino nanoparticles amachititsa kuti dzuwa lisatulukire koma limakhala lothandiza kwambiri.
Zambiri Zambiri Zamakafukufuku Zimapeza Nanoparticles mu Safe Sunscreen
Kuchokera pa zomwe tikudziwa tsopano, sizikuwoneka kuti nanoparticles ya zinc oxide kapena titaniyamu yowopsya m'njira iliyonse. Komabe zotsatira za nthawi yaitali zogwiritsira ntchito micronized zinayi oxide ndi titaniyamu dioxide, ndizochepa zinsinsi. M'mawu ena, palibe umboni wosonyeza kuti kugwiritsa ntchito nthawi yaitali kumakhala kotetezeka, koma palibe umboni uliwonse wovulaza.
Ena amakayikira za chitetezo cha maselo opangidwa ndi microni. Chifukwa chakuti ali aang'ono kwambiri, amatha kutengeka ndi khungu ndi thupi.
Zomwe zimapangidwira komanso momwe zimadalira kwambiri zimadalira momwe zing'onozing'ono zinc zinayambira kapena titaniyamu ya particles ndi, komanso momwe zimaperekera.
Pofuna kukankha, kodi chimachitika ndi thupi lanu ngati zinc oxide kapena titaniyamu ya dioxide nano-particles imatengedwa? Tsoka ilo, palibe yankho lodziwika bwino pa izo, mwina.
Pali zongoganiza kuti akhoza kupsinjika ndi kuwononga maselo athupi, kuthamangitsa msinkhu wokalamba mkati ndi kunja. Koma kufufuza kwina kuyenera kuchitidwa kuti mudziwe mwatsatanetsatane njira imodzi.
Titaniyamu ya dioxide, pamene imapanga mawonekedwe a phulusa ndi opunduka , yasonyezedwa kuti imayambitsa khansa ya m'mapapo mu makoswe a labu. Micronized titanium dioxide imalowa mkati mwa khungu mozama kwambiri kusiyana ndi micronized zinayi oxide, ndipo titaniyamu ya dioxide yasonyezedwa kudutsa mu placenta ndi mlatho wokhudzana ndi magazi.
Kumbukirani kuti zambiri mwazomwezi zimachokera kukulitsa titanium dioxide (popeza imapezeka mu zakudya zambiri zam'tsogolo komanso maswiti). Kuchokera ku kafukufuku wambiri wamakono opangidwa ndi micronised titanium dioxide ndi zinc oxide, nthawi zina ndizo zowonjezera zomwe zimapezeka pakhungu, ndipo ngakhale panthawiyi zinali zochepa kwambiri.
Izi zikutanthauza kuti ngakhale mutagwiritsa ntchito khungu la dzuwa lomwe liri ndi nanoparticles, iwo sangatenge ngakhale kutaya khungu loyamba la khungu. Ndalama zomwe zimagwiritsidwa ntchito zimasiyanasiyana kwambiri malinga ndi momwe mawonekedwe a dzuwa amawonekera, ndipo zambiri mwa izo sizidzayamwa kwambiri ngati nkomwe.
Malinga ndi zomwe tili nazo pakali pano, mawindo a dzuwa omwe ali ndi nanoparticles akuwoneka kukhala otetezeka komanso ogwira mtima. Zosadziwika bwino ndi zomwe zimagwiritsidwa ntchito nthawi zonse mankhwalawa, zimakhala ndi thanzi lanu, makamaka ngati mukugwiritsa ntchito mankhwalawa tsiku ndi tsiku. Apanso, palibe umboni wosonyeza kuti kugwiritsa ntchito mankhwala osakaniza a micronide kapena titanium dioxide nthawi yaitali kumakhala kovulaza, sitidziwa kuti zimakhala bwanji pakhungu kapena thupi lanu.
Mawu Ochokera
Choyamba, kumbukirani kuti kuvala zowunikira tsiku ndi tsiku ndi chimodzi mwa zinthu zabwino kwambiri zomwe mungachite kuti mukhale ndi thanzi labwino nthawi yaitali (ndipo ndi njira yabwino kwambiri yothetsera ukalamba). Choncho, ndikukupemphani kuti mukhale otetezeka pakhungu lanu!
Pali mitundu yambiri ya dzuwa yomwe imapezeka, zonsezi ndi zosankha zomwe sizinasinthidwe, pali chinthu china chomwe chimapangidwira pamenepo. Kugwiritsira ntchito sunscreen ndi micronized (AKA nano-particle) zinc oxide kapena titanium dioxide kukupatsani mankhwala omwe sagwiritsidwa ntchito kwambiri.
Ngati mumakhudzidwa ndi nano-particles, pogwiritsira ntchito chipangizo chopanda kuwala cha dzuwa chidzakupatsani zigawo zazikulu zomwe sizingatheke pakhungu lanu. Malondawa ndiwotheka filimu yoyera pa khungu lanu mutatha kugwiritsa ntchito.
Njira ina ngati mukudandaula ndi kupewa mankhwala opangidwa ndi titanium dioxide palimodzi, chifukwa chogwiritsira ntchito ichi ndi chomwe chimagwirizanitsidwa ndi mavuto omwe angathe. Kumbukirani kuti ambiri mwa mavutowa anali kutsegula kapena kumeza titanium dioxide nanoparticles, osati kuchokera ku khungu.
Zozizira za dzuwa, zonse zimagwiritsa ntchito micronized ndipo osati, zimasiyana mosiyana ndi momwe zimakhalira pakhungu. Kotero, ngati chizindikiro chimodzi sichikukondweretsa, yesani wina mpaka mutapeza chimene chimakugwiritsani ntchito .
> Zotsatira:
> Grande F, Tucci P. "Titanium Dioxide Nanoparticles: Ndi Ngozi Yopatsira Anthu?" Maphunziro a Mini mu Medicinal Chemistry. 2016; 16 (9): 762-9. https://www.ncbi.nlm.nih.gov/pubmed/26996620
> Lu PJ, Cheng WL, Huang SC, Chen YP, Chou HK, Cheng HF. "Kuimira Titani Dioxide ndi Zinc Oxide Nanoparticles mu Kutuluka kwa Sunscreen." International Journal of Cosmetic Science. 2015 Dec; 37 (6): 620-6. https://www.ncbi.nlm.nih.gov/pubmed/25945685
> Osmond-McLeod MJ, Oytam Y, Rowe A, Sobhanmanesh F, Greenoak G, et. al. "Kuyambira nthawi yaitali kuwonetseredwa kwa dzuwa komwe kulipo malonda omwe ali ndi nanoparticles a TiO2 ndi ZnO sanathenso kugwiritsira ntchito njira yopanda tsitsi." Tinthu ndi Fiber Toxicology. 2016 Aug 17; 13 (1): 44. Chilombo
> Skotarczak K, Osmola-Mańkowska A, Lodyga M, Polańska A, Mazur M, Adamski Z. "Photoprotection: Mfundo ndi Mikangano." European Review for Scientific and Medical Sciences . 2015 Jan; 19 (1): 98-112. http://www.europeanreview.org/article/8343