x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。609Please respect copyright.ＰＥＮＡＮＡGK0LUrM0U9
609Please respect copyright.ＰＥＮＡＮＡdBnoqy5Cae
609Please respect copyright.ＰＥＮＡＮＡGEhMFG8G4V
609Please respect copyright.ＰＥＮＡＮＡ61RVoh9ThY
（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。609Please respect copyright.ＰＥＮＡＮＡL7g1OOJvnd
609Please respect copyright.ＰＥＮＡＮＡ09wFG7KKCs
609Please respect copyright.ＰＥＮＡＮＡCB6eVE9fCC
609Please respect copyright.ＰＥＮＡＮＡvL14X0pyUZ
（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。609Please respect copyright.ＰＥＮＡＮＡfiM5bVFL8j
609Please respect copyright.ＰＥＮＡＮＡLERBfcS3XT
609Please respect copyright.ＰＥＮＡＮＡdj8QvQJChN
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。609Please respect copyright.ＰＥＮＡＮＡ6q6m37LEhp
609Please respect copyright.ＰＥＮＡＮＡXEy6wBTtgq
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。609Please respect copyright.ＰＥＮＡＮＡntrEv749Rk
609Please respect copyright.ＰＥＮＡＮＡyIzABYtHdh
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)。609Please respect copyright.ＰＥＮＡＮＡ2AqFhgas9f
609Please respect copyright.ＰＥＮＡＮＡUahU6OVJVd
609Please respect copyright.ＰＥＮＡＮＡwygRNujzUi
（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。609Please respect copyright.ＰＥＮＡＮＡs48hrQyfTZ
609Please respect copyright.ＰＥＮＡＮＡxn7thh83gY
609Please respect copyright.ＰＥＮＡＮＡwZ6AAQmD5P
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。609Please respect copyright.ＰＥＮＡＮＡO1TylPIcLR
609Please respect copyright.ＰＥＮＡＮＡoIW4aKTFJi
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。609Please respect copyright.ＰＥＮＡＮＡyn0DqZl7a3
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。609Please respect copyright.ＰＥＮＡＮＡZqYCu0cP4z
609Please respect copyright.ＰＥＮＡＮＡUTZR5zv4m6
609Please respect copyright.ＰＥＮＡＮＡA10hYwvhMW
（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)，609Please respect copyright.ＰＥＮＡＮＡ9gMeDNjrIG
609Please respect copyright.ＰＥＮＡＮＡU1NW8ypSxu
609Please respect copyright.ＰＥＮＡＮＡtRtweoMYDy
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。609Please respect copyright.ＰＥＮＡＮＡtNoEz4qGVM
609Please respect copyright.ＰＥＮＡＮＡLqjBVqoAU6
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。609Please respect copyright.ＰＥＮＡＮＡbcoEtpfnOE
609Please respect copyright.ＰＥＮＡＮＡmF75NZocXu
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。609Please respect copyright.ＰＥＮＡＮＡx12L8OdOBo
609Please respect copyright.ＰＥＮＡＮＡwHIJRglxFa
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/toc609Please respect copyright.ＰＥＮＡＮＡvS9RB1KSQL
609Please respect copyright.ＰＥＮＡＮＡAwJKa7BnBR
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。609Please respect copyright.ＰＥＮＡＮＡwrrP45MsYB
609Please respect copyright.ＰＥＮＡＮＡufQSBMIHUc
Link:609Please respect copyright.ＰＥＮＡＮＡb30CbMDVQx
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio609Please respect copyright.ＰＥＮＡＮＡURue6ajj5Z
609Please respect copyright.ＰＥＮＡＮＡwbWM1u2ZNk
609Please respect copyright.ＰＥＮＡＮＡJAmhF3d6RJ
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。609Please respect copyright.ＰＥＮＡＮＡNrCHTu9TAy
609Please respect copyright.ＰＥＮＡＮＡz7MjE5pKJa
https://www.instagram.com/potatopigtongue/609Please respect copyright.ＰＥＮＡＮＡC0IsyRfEo4
609Please respect copyright.ＰＥＮＡＮＡZ3wPtfuJoY
609Please respect copyright.ＰＥＮＡＮＡBL83aDiwRP
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.230da2
