x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。611Please respect copyright.ＰＥＮＡＮＡOF0O7GIAch
611Please respect copyright.ＰＥＮＡＮＡ2nXwzNpguz
611Please respect copyright.ＰＥＮＡＮＡI144XHwJOl
611Please respect copyright.ＰＥＮＡＮＡ6rCNRvAwwV
（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。611Please respect copyright.ＰＥＮＡＮＡi0ZYlIevsA
611Please respect copyright.ＰＥＮＡＮＡIjSNa9CvjL
611Please respect copyright.ＰＥＮＡＮＡZejth8hKPS
611Please respect copyright.ＰＥＮＡＮＡtTXC5iG3GE
（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。611Please respect copyright.ＰＥＮＡＮＡHyK07bTWhn
611Please respect copyright.ＰＥＮＡＮＡYfbyn4A3r0
611Please respect copyright.ＰＥＮＡＮＡRb6ZN8LiV6
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。611Please respect copyright.ＰＥＮＡＮＡTNczcTBN2t
611Please respect copyright.ＰＥＮＡＮＡQaBGZVgl7o
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。611Please respect copyright.ＰＥＮＡＮＡCSmJb0sBtR
611Please respect copyright.ＰＥＮＡＮＡsaqR2j57rQ
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)。611Please respect copyright.ＰＥＮＡＮＡiuvX4o1ETP
611Please respect copyright.ＰＥＮＡＮＡ6KXfDgUiVz
611Please respect copyright.ＰＥＮＡＮＡBi3wbh34M5
（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。611Please respect copyright.ＰＥＮＡＮＡiEz693L3Uo
611Please respect copyright.ＰＥＮＡＮＡ17TPwYrMX4
611Please respect copyright.ＰＥＮＡＮＡOI1zoUEjws
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。611Please respect copyright.ＰＥＮＡＮＡimCGGILT2J
611Please respect copyright.ＰＥＮＡＮＡlJ7k7mIcGa
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。611Please respect copyright.ＰＥＮＡＮＡ48sYsAcTju
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。611Please respect copyright.ＰＥＮＡＮＡo7w1g51jNc
611Please respect copyright.ＰＥＮＡＮＡRi3W9DENfO
611Please respect copyright.ＰＥＮＡＮＡWxMbFI21SH
（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)，611Please respect copyright.ＰＥＮＡＮＡYk9iLy4ash
611Please respect copyright.ＰＥＮＡＮＡKN9VEwb0GA
611Please respect copyright.ＰＥＮＡＮＡs0E7CH7uDD
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。611Please respect copyright.ＰＥＮＡＮＡoDzk0oLMRQ
611Please respect copyright.ＰＥＮＡＮＡueZYOd4h1W
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。611Please respect copyright.ＰＥＮＡＮＡBadyzDPjnZ
611Please respect copyright.ＰＥＮＡＮＡDsgL8HxpOD
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。611Please respect copyright.ＰＥＮＡＮＡz0nYhnszEZ
611Please respect copyright.ＰＥＮＡＮＡVipB2h03rL
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/toc611Please respect copyright.ＰＥＮＡＮＡAxDJ3p0Uj1
611Please respect copyright.ＰＥＮＡＮＡPreUCCJw78
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。611Please respect copyright.ＰＥＮＡＮＡ7NxnCJvQN5
611Please respect copyright.ＰＥＮＡＮＡSSkUsomNBR
Link:611Please respect copyright.ＰＥＮＡＮＡ6ic0To2GNo
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio611Please respect copyright.ＰＥＮＡＮＡZ3pH3TOTkn
611Please respect copyright.ＰＥＮＡＮＡaicumNCCd8
611Please respect copyright.ＰＥＮＡＮＡiY7DWNAXH3
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。611Please respect copyright.ＰＥＮＡＮＡO7408P0jMK
611Please respect copyright.ＰＥＮＡＮＡ3cGkL8sLRW
https://www.instagram.com/potatopigtongue/611Please respect copyright.ＰＥＮＡＮＡXOr7dCe7TY
611Please respect copyright.ＰＥＮＡＮＡ4DcJb0WuQ5
611Please respect copyright.ＰＥＮＡＮＡcvX2OFJ5dH
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.203da2
