黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。660Please respect copyright.ＰＥＮＡＮＡnfW1Zd2aAw
660Please respect copyright.ＰＥＮＡＮＡAlDQasfqZd
660Please respect copyright.ＰＥＮＡＮＡR2Ky7XdVWD
660Please respect copyright.ＰＥＮＡＮＡbQ9c2AkOpv
（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。660Please respect copyright.ＰＥＮＡＮＡJgHYwLuD8R
660Please respect copyright.ＰＥＮＡＮＡusFfwwG75U
660Please respect copyright.ＰＥＮＡＮＡkjENpFUE2U
660Please respect copyright.ＰＥＮＡＮＡjQgl5vkQA5
（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。660Please respect copyright.ＰＥＮＡＮＡ4r6RDnkTCD
660Please respect copyright.ＰＥＮＡＮＡDDcl2xuUI9
660Please respect copyright.ＰＥＮＡＮＡD0Mlm8JO5B
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。660Please respect copyright.ＰＥＮＡＮＡIY1Ihdqsew
660Please respect copyright.ＰＥＮＡＮＡ1808rv8JCk
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。660Please respect copyright.ＰＥＮＡＮＡq6HcyRBlIm
660Please respect copyright.ＰＥＮＡＮＡM5kPt6NcDX
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)。660Please respect copyright.ＰＥＮＡＮＡJZuGDcCK3X
660Please respect copyright.ＰＥＮＡＮＡmYtKwIKM9R
660Please respect copyright.ＰＥＮＡＮＡquhhqmHj65
（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。660Please respect copyright.ＰＥＮＡＮＡcA4WxE4t8I
660Please respect copyright.ＰＥＮＡＮＡD06q6GilLX
660Please respect copyright.ＰＥＮＡＮＡu3xshdS6B5
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。660Please respect copyright.ＰＥＮＡＮＡ1J1HAkM2HG
660Please respect copyright.ＰＥＮＡＮＡH6QpDFPpY5
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。660Please respect copyright.ＰＥＮＡＮＡIzsLvRAlTy
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。660Please respect copyright.ＰＥＮＡＮＡSQlNQ2Lic9
660Please respect copyright.ＰＥＮＡＮＡ7t3FlcmA6l
660Please respect copyright.ＰＥＮＡＮＡkFZmH098Wv
（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)，660Please respect copyright.ＰＥＮＡＮＡ74CLTehuHf
660Please respect copyright.ＰＥＮＡＮＡAZwyDJhP4m
660Please respect copyright.ＰＥＮＡＮＡf7QQyR4rIG
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。660Please respect copyright.ＰＥＮＡＮＡMUG6fwLmaz
660Please respect copyright.ＰＥＮＡＮＡd4b4sCIAXg
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。660Please respect copyright.ＰＥＮＡＮＡ4dxPVGJ9Yo
660Please respect copyright.ＰＥＮＡＮＡ0KAA0HJJDM
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。660Please respect copyright.ＰＥＮＡＮＡfMSKriq1fp
660Please respect copyright.ＰＥＮＡＮＡKZDOrtlJNY
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/toc660Please respect copyright.ＰＥＮＡＮＡaR3GLk78s5
660Please respect copyright.ＰＥＮＡＮＡMgaq1ke6wY
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。660Please respect copyright.ＰＥＮＡＮＡ0H80FuXuYZ
660Please respect copyright.ＰＥＮＡＮＡ8Tmwi17GaF
Link:660Please respect copyright.ＰＥＮＡＮＡ2XNK1Y9I7J
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio660Please respect copyright.ＰＥＮＡＮＡPJY8HWf4s8
660Please respect copyright.ＰＥＮＡＮＡsrLlHCEN8r
660Please respect copyright.ＰＥＮＡＮＡFrIIoTv8Fm
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。660Please respect copyright.ＰＥＮＡＮＡGn6Ts45bau
660Please respect copyright.ＰＥＮＡＮＡt53H8IV34N
https://www.instagram.com/potatopigtongue/660Please respect copyright.ＰＥＮＡＮＡMkQ0CVEG7V
660Please respect copyright.ＰＥＮＡＮＡ1WgAaYeZEL
660Please respect copyright.ＰＥＮＡＮＡMcqAUkIs5m
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.247da2
