Te Hanga i ngā Kopare Makawe me te Hangarau Nano
Kei te whanake tonu te tiaki makawe me ngā whanaketanga o te pūtaiao me te hangarau. Ahakoa i mua ko ngā kopare makawe he rite ki ngā kai matotoru e "pani" noa ana i te mata o te makawe, kua puta ake he huarahi tika ake mā te nanotechnology. Mā tēnei hangarau ka taea te hanga i ngā kai hohe i roto i ngā rahinga iti rawa, ka pai ake te mimiti, ka taurite te tohatoha, ā, ka rite tonu ngā hua. Ka matapakihia e tēnei tuhinga te ariā, ngā painga, me ngā mahi whānui e uru ana ki te hanga kopare makawe e ahu mai ana i te nanotechnology, mai i te kōwhiringa kai ki te whakahaere kounga.
Te Mārama ki te Hangarau Nano i roto i ngā Hua Tiaki Makawe
Ko te hangarau nano e pā ana ki te hanga rauemi i te tauine nanometer (tata ki te 1–1000 nm, i runga i te whakamāramatanga o te hangarau e whakamahia ana i roto i te umanga whakapaipai). I roto i ngā whakapaipai, ko te kupu "nano" e pā ana ki ngā pūnaha tuku pēnei i ngā nanoemulsions, liposomes, nanoparticles polymer, nanoparticles lipid totoka (SLN) rānei. Ko te whāinga matua ehara i te mea ko te whakaiti noa i ngā matūriki, engari ko te arotau i te mahi a ngā kai hohe.
Mō te makawe, ko ngā āhuatanga e arohia ana ko te pakaru o te kiriuhi makawe, te maroke, te pōrearea, te whati, te makawe kua pania ki te tae, me te tumuaki hinuhinu, kiriuhi rānei. Kua hangaia ngā kopare makawe nano kia taea ai e ngā kai hohe te tae atu ki ngā wāhi tika ake: te piri ki te kakau makawe, te uru ki te kiriuhi makawe tuwhera, te taunekeneke pai ake rānei ki te tumuaki.
Ngā Hua o te Nano Mask
I te nuinga o te wā, he maha ngā painga pea o ngā kopare makawe me te nanotechnology:
1. Te whakanui ake i te mimiti me te whai huatanga o ngā matū hohe
He nui ake te horahanga o te mata o ngā matūriki iti, nō reira ka nui ake te pa atu ki te huruhuru.
2. Te tohatoha ōrite
Ka taea e ngā nanoemulsion, ngā pūnaha nanoparticle rānei te horapa i te hinu me ngā matū hohe kia ōrite, kia whakaitihia ai te "kohikohi" o ngā hua ki te wāhi kotahi.
3. He pai ake te pumau o te tātai
Ka ngāwari te waikura, te pirau rānei o ētahi o ngā matū hohe. Ka taea e ētahi pūnaha nano te āwhina ki te tiaki i ngā matū hohe mai i te mārama me te hau.
4. He pai ake te rongo
Ka māmā ake te āhua o ngā kopare, ka iti ake te piri, ā, ka māmā ake te horoi atu—mēnā he tika te hanganga.
Heoi, he mea nui kia whakanuia ko te "nano" ehara i te mea he haumaru ake, he whai hua ake rānei. Ko te angitu o te hua e whakawhirinaki tonu ana ki te kōwhiringa rauemi, te rahi o te matūriki, ngā tikanga whakaputa, me te whakamātautau haumaru me te pumau.
Ngā Wāhanga Matua o te Hanganga o te Mask Makawe Nano
Ko te nuinga o te wā, ko te kopare makawe nano he mea hanga ki:
– Wāhanga wai: wai parakore (kua tangohia te ion), hinu whakamākū (glycerin, propylene glycol), whakaū pH.
– Wāhanga hinu: argan, jojoba, hinu kokonati wehewehea, ngā esters māmā rānei; tera pea kei roto ko te huaora E, ngā kai whai kiko-ngota rānei.
– Ngā emulsifier me ngā surfactants: hei hanga i ngā pūnaha nanoemulsion. Ngā tauira noa i roto i ngā mea whakapaipai: polysorbate, lecithin, he huinga rānei o ngā surfactants kore-ionic.
– Ngā kai hohe: keratin kua waikuratia, panthenol, niacinamide (mō te kiri tumuaki), ceramides, peptides, waikawa amino, pūmua witi kua waikuratia, me ngā antioxidants.
– Ngā mea whakangawari: ngā matū ammonia quaternary (hei tauira, polyquaternium), ngā silicones (dimethicone—mēnā e whakamahia ana), ngā momo rongoā rānei e ahu mai ana i ngā tipu.
– Ngā mea whakamātotoru me ngā mea whakakaha kakano: carbomer, xanthan gum, cetearyl alcohol, he mea whakamātotoru rānei e tika ana hei pupuri i te "kirikiri" o te kopare.
– Ngā mea tiaki kiri: he mea nui nā te mea ka pāngia ngā kopare wai e ngā moroiti. Me whiriwhiri ngā mea tiaki kiri kia rite ki ngā ture whakapaipai.
– Kakara (whiringa): me hototahi, ā, kaua e whakararuraru i te pumau o te nanoemulsion.
Ngā Tikanga Nano e Whakamahia Ana: Ngā Nanoemulsions
Mō ngā kopare makawe, ko tētahi o ngā huarahi tino noa ko ngā nanoemulsion—he hinu-i-te-wai (O/W) he iti rawa ngā pata. Ka taea e ngā nanoemulsion te whakarato i te āhua māmā, te horapa tere, me te whakahaere pumau pai ina hangaia tika. Haunga ngā nanoemulsion, kei te whakawhanake hoki ētahi kaihanga i ngā liposome, i ngā SLN rānei hei whakakī i ngā kai hohe motuhake.
Kei raro nei he tirohanga whānui mō ngā mahi hanga i tētahi kopare makawe nano mā te whakamahi i te ariā nanoemulsion. Ehara tēnei i te tunu kai i hangaia i te kāinga, engari he tukanga whakaputa noa e whakamahia ana i roto i te tauine taiwhanga, i te ahumahi whakapaipai rānei.
Ngā Hipanga hei Hanga i tētahi Kopare Makawe me te Hangarau Nano
1. Te rangahau me te hoahoa tātai
Ko te taahiraa tuatahi ka tīmata mā te tautuhi i te raruraru makawe e arohia ana, hei tauira:
– ngā pito maroke me ngā pito pakaru,
– ngā makawe kua pakaru nā te whakama,
– te makawe pōrearea, te makawe pūngāwerewere,
– te kiri tumuaki tairongo.
Kātahi ka whakatauhia te matū hohe matua, tōna kukū haumaru, me tōna pūnaha tuku. I tēnei wāhanga, ka whakahaerehia he rangahau hototahi rauemi: mēnā he pumau te matū hohe i tētahi pH motuhake, mēnā ka konatunatua ki ētahi matū horoi, me pēhea te pānga ki te matotoru.
2. Te whakarite i te wāhanga wai me te wāhanga hinu
– Wāhanga wai: ka whakamahanahia te wai whakakore iona (hei tauira, 40–70°C i runga i te rauemi), kātahi ka tāpirihia ētahi whakamakuku me ngā whakamātotoru kia memeha rawa.
– Wāhanga hinu: ka whakamahanahia te hinu/ester me te rauemi lipophilic ki tētahi pāmahana ōrite hei whakaiti i te matotoru me te whakahaere i te whakaranu.
Mā te whakamahana ka hanga he emulsion pumau ake, engari me whakahaere kia kore ai e pakaru ngā matū hohe tairongo (hei tauira, ētahi huaora, tangohanga rānei).
3. Te tukanga whakaemulsification i mua
Ka ringihia mārire te hinu ki roto i te wai (ka pērā anō rānei, i runga i te hoahoa), kātahi ka whakaranua mā te whakamahi i te mīhini whakaranu kutikuti-teitei hei hanga i te ranunga tuatahi. I tēnei wā, he rite tonu te rahi o ngā pata ki te maikoromita.
Mā te pai o te pre-emulsion ka āwhina i te taahiraa nano-rahi e whai ake nei, ā, ka whakaiti i te tūponotanga o te wehenga wāhanga.
4. Te whakarahi i te rahi
Hei whakaiti i ngā pata ki te rahi nano, he maha ngā hangarau e whakamahia whānuitia ana:
– Te whakakotahitanga pēhanga-teitei (HPH): ka akiakihia te ranunga mā roto i tētahi āputa whaiti i te pēhanga teitei kia pakaru ai ngā pata ki ngā wahi iti rawa.
– Ultrasonication: ka pakaruhia e ngā ngaru ultrasonic ngā pata mā te āhuatanga o te cavitation.
– Te whakapūmau i te rere-iti: he rite ki te HPH engari he tika ake te whakahaere i te rere-iti.
Ko te whiriwhiri i te hangarau e whakawhirinaki ana ki te kaha whakaputa, te utu, me te rahi o te matūriki e hiahiatia ana. I te nuinga o te wā ka mahia tēnei tukanga i roto i ētahi huringa tae noa ki te tutuki i te rahi me te tohatoha o te pata ngā whakaritenga.
5. Te whakamatao me te tāpiri i ngā rauemi tairongo
Kia tae ki te taumata nano, ka whakamatao haeretia te hua. Ko ngā kai hohe e pāngia ana e te wera (pēnei i ētahi tangohanga, hinu kakara, ētahi matū tiaki rānei) ka tāpirihia i te wā whakamatao hei pupuri i te kounga.
I tēnei wā, ka whakatikatikaina hoki te pH kia rite ki te makawe me te tumuaki. He maha ngā hua makawe he pH waikawa paku (tata ki te 4–6) hei āwhina i te hiri i te kiriuhi me te whakaiti i te makawe pōuriuri, ahakoa ko te pH tuturu e whakawhirinaki ana ki te tauira.
6. Ngā tautuhinga kakano me te pumau whakamutunga
Me whai āhua whakamarie ngā kopare makawe: kaua e tino wai, kaua e tino matotoru, ngāwari ki te tohatoha, ā, ngāwari ki te horoi. Ka taea te whakarerekē i ngā mea whakamātotoru, ngā mea whakangawari, ngā mea whakangawari rānei. Mena he nui rawa te matotoru, ka āraihia te tukunga o ngā kai hohe; ki te iti rawa, ka "kāore i te tino momona" te kaiwhakamahi, ā, ka ngawari te maturuturu o te hua.
7. Te takai e tautoko ana i te pumau
He maha ngā wā e hiahiatia ana he aro nui atu ki te takai i roto i te hangarau nano:
– me hototahi ngā ipu, ā, me kore e pāngia e te tauhohenga,
– he taupoki piripono hei ārai i te poke,
– ko te mea pai, ka whakaitihia e te takai te pānga o te hau me te mārama.
I roto i ngā hua utu nui, ka whakamahia ētahi ipu he taupoki o roto, he pūnaha kore hau rānei hei whakaiti i te pānga ki te hāora.
Te Mana Kounga me te Whakamātautau Haumaru
Hei whakarite kia pai te whakamahi me te haumaru o tētahi hua, ko ētahi whakamātautau nui ko:
– Te rahi me te tohatoha o te matūriki (DLS/tātari rahi matūriki): kia tino rite te pūnaha ki te rahi e hiahiatia ana, ā, kia kore ai e pupū ngāwari.
– Te pumau ā-tinana: whakamātautau whakawhiti, whakamātautau huringa (wera-mātao), rokiroki mō tētahi wā motuhake hei tiro i te wehenga ā-wāhanga.
– pH me te matotoru: me ōrite tonu i waenga i ngā puranga.
– Ngā whakamātautau moroiti: te tapeke o ngā pereti, te whakamātautau whai huatanga tiaki.
– Whakamātautau i te riri o te kiri (whakamātautau papaki) me te aromatawai haumaru: inā koa mō te kiri tumuaki tairongo.
Mēnā ka hokohokohia he hua, me tutuki hoki e ngā kaihanga ngā ture whakapaipai e whai mana ana i te whenua, tae atu ki te tuhi i ngā tauira me ngā kereme o te hua.
Ngā Wero i te Whakawhanake i ngā Kopare Makawe Nano
Ahakoa he mea whai hua, he wero anō hoki kei te whanaketanga o ngā kopare makawe nano:
– Te teitei ake o ngā utu taputapu me ngā utu whakaputa (ehara i te mea iti te utu mō ngā HPH/ngā microfluidizer).
– He uaua pea te pumau mō te wā roa; ka taea te whakarerekē i te rahi o te nano mena kāore i te tika te pūnaha surfactant.
– Me tautokona ngā kereme hokohoko e ngā taunakitanga; ehara i te mea ko te "nano" te tikanga o te whakatikatika makawe tuturu.
– Te tirohanga a te kaihoko: Kei te āwangawanga ētahi kaihoko mō te kupu nano. Nō reira, he mea nui te māramatanga mō te haumaru me te whakamātautau.
Te Katinga
Ko te hanganga o ngā kopare makawe mā te whakamahi i te nanotechnology he auahatanga e whakakotahi ana i te pūtaiao hanga whakapaipai, ngā tikanga emulsification, me te whakahaere kounga taumata teitei. Mā roto i ngā pūnaha pēnei i ngā nanoemulsions, ngā nanoparticles rānei, ka taea e ngā kai hohe te mahi pai ake, te ōrite ake, ā, ka taea te whakarato i te ahua tono māmā engari whai hua. Heoi, ko te angitu o te hua ka whakatauhia tonutia e te hoahoa tauira tika, ngā tikanga whakaputa whakahaere, me te whakamātautau pumau me te haumaru pakari. Ina whakamahia tika, ka taea e ngā kopare makawe nano te noho hei otinga hou mō ngā raruraru makawe me te kore e whakararu i te whakamarie o te kaiwhakamahi.
Ki te hiahia koe, ka taea e au te hanga i tētahi putanga o tēnei tuhinga me tētahi hanganga pepa pūtaiao (whakarāpopototanga–whakataki–tikanga–hua–kōrero–whakamutunga) me te tāpiri rānei i tētahi tauira o tētahi hoahoa tātai (karekau he tau tairongo) mō ngā mahi kura/kāreti.
