x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。608Please respect copyright.ＰＥＮＡＮＡ5BOw4NwIor
608Please respect copyright.ＰＥＮＡＮＡxXUrb5m5wf
608Please respect copyright.ＰＥＮＡＮＡo1UXPFOysE
608Please respect copyright.ＰＥＮＡＮＡMpzwr1twMb
（圖2）皮膚下的黑素細胞(Melanocyte)會製造出黑色粒子Melanosomes，而這些黑色粒子Melanosomes會走到表皮(Epidermis)或者髮囊(Hair follicile)，賦予皮膚及頭髮黑色外表。608Please respect copyright.ＰＥＮＡＮＡ7xsERGsctp
608Please respect copyright.ＰＥＮＡＮＡb6Uip0F13X
608Please respect copyright.ＰＥＮＡＮＡgbNJLdAsAk
608Please respect copyright.ＰＥＮＡＮＡEkURL39UF8
（圖3）圖中為Melanosomes裡頭的生物化學反應，起始材料為氨基酸，經過一輪酶素的化學反應後，最終成品將為黑色真黑素及啡色真黑素。608Please respect copyright.ＰＥＮＡＮＡ3jCcZVDWX9
608Please respect copyright.ＰＥＮＡＮＡekdlEKrPwr
608Please respect copyright.ＰＥＮＡＮＡrKm3K8qk8w
而根據兩者比例的不同，最終的顏色效果亦會有所不同，所以Melanosomes並不一定是純黑色，亦因而解釋了為何並不是所有人的頭髮也是漆黑黑一片。608Please respect copyright.ＰＥＮＡＮＡnsiJzRV6aY
608Please respect copyright.ＰＥＮＡＮＡmq0OGM3RM7
值得留意的是，這一系列發生在Melanosomes的反應均是在中性pH7的環境下進行，有別於現時常用的鹼性pH化學染髮方式。608Please respect copyright.ＰＥＮＡＮＡSjNIRyYFdR
608Please respect copyright.ＰＥＮＡＮＡBFKXUylybY
有科學家看準這一點，因而嘗試照辦煮碗在體外套用我們自身Melanosomes蛋白酶的機制方式進行染髮（Ref1)。608Please respect copyright.ＰＥＮＡＮＡVXrCqdBZMm
608Please respect copyright.ＰＥＮＡＮＡE0Ze1a41ys
608Please respect copyright.ＰＥＮＡＮＡQDvwHBpC9I
（圖4）從圖中可見，鹼性pH化學染髮以及中性pH7模仿人類Melanosomes裡頭生物化學反應方式染髮（2小時，攝氏35度），兩者最終的外表差別不大。608Please respect copyright.ＰＥＮＡＮＡmqMPt2QnGW
608Please respect copyright.ＰＥＮＡＮＡ7J1Uw4kzoS
608Please respect copyright.ＰＥＮＡＮＡdw5t7EhGFv
而且經過5次清水沖洗及10分鐘的洗髮水猛烈沖洗後，兩者亦沒有出現脫色的現象。608Please respect copyright.ＰＥＮＡＮＡ9Ak7lHo7S8
608Please respect copyright.ＰＥＮＡＮＡqhL3f7erC5
只不過，利用鹼性pH化學染髮的話，色素會徹底進入髮質內部。608Please respect copyright.ＰＥＮＡＮＡzdu1oTzjF3
反觀中性pH7生物化學反應方式染髮，色素主要聚集在髮質外部，因此對頭髮的傷害相對較低。608Please respect copyright.ＰＥＮＡＮＡh5JgXxiubr
608Please respect copyright.ＰＥＮＡＮＡdFBTJoQeBs
608Please respect copyright.ＰＥＮＡＮＡuyeS6Ne8Tb
（圖5）在圖中亦可以清楚看得到，鹼性pH化學染髮對頭髮外部會做成傷害(箭嘴所指位置)，608Please respect copyright.ＰＥＮＡＮＡg2nQjKxvrk
608Please respect copyright.ＰＥＮＡＮＡoS5G0ZFOD8
608Please respect copyright.ＰＥＮＡＮＡeP6GUALBpy
而中性pH7模仿人類Melanosomes裡頭生物化學反應方式染髮則沒有這個問題。608Please respect copyright.ＰＥＮＡＮＡ6ghI13hb0I
608Please respect copyright.ＰＥＮＡＮＡ2v4ZvFl5zo
此方法能否在日後淘汰鹼性pH化學染髮或其他的染髮手段，我們將可拭目以待。608Please respect copyright.ＰＥＮＡＮＡAElxlYr1DV
608Please respect copyright.ＰＥＮＡＮＡhtCxjMn1ym
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。608Please respect copyright.ＰＥＮＡＮＡUf9x3itfAV
608Please respect copyright.ＰＥＮＡＮＡmb13ZYiSQp
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc608Please respect copyright.ＰＥＮＡＮＡYj3iuEI76E
608Please respect copyright.ＰＥＮＡＮＡv06LTqacKz
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。608Please respect copyright.ＰＥＮＡＮＡXNfGRJNQq1
608Please respect copyright.ＰＥＮＡＮＡrkUzlsV1F2
Link:608Please respect copyright.ＰＥＮＡＮＡYMsqOhpJeg
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio608Please respect copyright.ＰＥＮＡＮＡ6S941yT48n
608Please respect copyright.ＰＥＮＡＮＡAdOhnGMpRc
608Please respect copyright.ＰＥＮＡＮＡN5giwP1o1X
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。608Please respect copyright.ＰＥＮＡＮＡfKTRaGYTey
608Please respect copyright.ＰＥＮＡＮＡGGUBvVCBSC
https://www.instagram.com/potatopigtongue/608Please respect copyright.ＰＥＮＡＮＡPdOyN8GFDM
608Please respect copyright.ＰＥＮＡＮＡN3EtrmPw4W
608Please respect copyright.ＰＥＮＡＮＡHMUMgFPoh4
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.187da2
