Ultraviolet mwaranzi

Ultraviolet mwaranzi vanoremekedza chaizvo simba. Nezvenyaya iyi, muna nedanho Absorção de Água muna samolecular uye mabhomba marongerwo ari kuwana kuchinja. The takabatikana simba, iyo dzinounzwa ultraviolet mwaranzi, inogona kushandiswa pakuputsa simba zvisungo mapuroteni mamorekuru. Izvi zvinonzi photolysis. kuyerera Its achabatsirwa nokusunungurwa basa zvinhu pasi pokudzora svikiro chinozunguzirwa ultraviolet irradiation.

Short-wave anokonzerwa chinokurwadzai kuti denaturation ari puroteni polymer, izvo, kurasikirwa kwayakaita, precipitate. Ultraviolet mwaranzi vane chinokosha kukanganisa morekuru reDNA. Achifuridzirwa kutyora vakachengeta doubling DNA uye muchitokisi kupesana. Panguva iyoyowo, ultraviolet mwaranzi kukonzera oxidative kudzikisirana mu mapuroteni zvivako. Izvi zvinotungamirira nechitokisi rufu. Asi dzaparadzwa pasvurwe anokwanisa kudzorera (rima kugadzirisa). Izvi zvinogoneka pasi pokudzora-refu chinozunguzirwa UV nemwaranzi uye chinooneka chiedza simba. In azvaiitwa, vamwe makemikari unobatanidzwa.

Murima uye mufananidzo-reactive kugadzira ndezvaMwari muchikwata rokudzivirira-adaptive siyana. Vakaisa yezvakaita muviri womunhu uye kudzivirira pamigumisiro UV mwaranzi.

Svikiro-mugumisiro mavhitamini zvinobatsira Activate ari dzinotsanagura inotungamirwa. Saka ultraviolet mwaranzi vari vakatendeutswa aifarira-mavhitaminzi zviri paganda, kupinda vhitamini D. rakapinza chete chegumi chimwe millimeter kugarotamba inopa paumbwe yakawanda simba tichienzanisa nedzimwe remagetsi mafungu ane michini uye rinooneka chakarondedzera.

Photolysis, uye denaturation vari spinous rukoko ganda. Pamwe izvi zvinoitwa histamine kusunungurwa, acetylcholine, biogenic amines. yeimwe izvi kutsamwisa kukura erythema. It kunoitika pashure maawa 2-8. mapuroteni manyowa zvigadzirwa kubatsira pakuwedzera midziyo ropa, yokutama ropa masero machena, kuzvimba ganda. All mananara aya ndiho yakaoma ganda kutsamwa receptors viscera receptors pamwe chiitiko neuroreflex siyana. The kuora zvigadzirwa diverge kuburikidza muropa, ichipa humoral simba. Ultraviolet irradiation nokuti MW Range kumutsa aseptic anogumbura mhinduro paganda. Pakazosvika zuva rechipiri kwayo kunosvika kunonyanyisa yayo. Pazuva rechinomwe, zuva anogumbura norudaviro repfumbamwe inopfuura, pachinzvimbo Tan kuoneka. Short Wave nemwaranzi nokukurumidza kutsamwisa erythema, achikusiyirai pigmentation nyoro.

Kunonyanyisa chromogenic kukanganiswa-refu chinozunguzirwa UV mwaranzi. In melanoblast riri basal rukoko pakati Epiderme e, kubva tyrosine, uye kuora zvinogadzirwa adrenaline dihydroxyphenylalanine kuumbwa rwe-melanin. Ake (rwe-melanin) hofori mamorekuru kudzivirira ingress zvakadzama kupinda dermis zvimedu mapuroteni mamorekuru ichaparadzwa UV nemwaranzi. Mukuwedzera, rwe-melanin mamorekuru Sechipanji michini mwaranzi uye rinooneka chakarondedzera. Saka, ganda kunodzivirirwa kubva overheating uye nokupisa. Munzvimbo vasisanetswi ultraviolet mwaranzi ichiwedzerwa node uye ropa riyerere inowedzerwa pabutiro patsva, vakawedzera kwetunhu collagen fibers. Kana erythema kwazvo inoyerera yakakura yokuvamba acutely uye chirwere anogumbura kwendangariro.

Ultraviolet ekisiposha zvinowanzodavirwa kushandiswa cosmetology. Saka, muna solarium inotsvedzerera uye akanaka kusviba. Inoshandisa-refu chinozunguzirwa mwaranzi, apo pfupi-uye svikiro-nemwaranzi mu kusukuta matehwe Salons vari filters.

Zvinofanira kucherechedzwa kuti kunyanya kuona zuva kungaita kuti vakurumidze kukwegura, kuti kuderera elasticity ganda. Uyezve, anogona kusashanda kubudikidza inotungamirwa vakasununguka radicals kuti pave kenza.

Kuti tizive mutsetse pakati "inokuvadza" uye "runobatsira" anoshandisa zuva UV indekisi. parameter Izvi zvinoratidza padanho nemwaranzi Panyika.