x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。626Please respect copyright.ＰＥＮＡＮＡXzkmgk9z53
626Please respect copyright.ＰＥＮＡＮＡJFn2AlXo1D
626Please respect copyright.ＰＥＮＡＮＡRJzRnssH72
626Please respect copyright.ＰＥＮＡＮＡmH2Rx2PDLK
（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。626Please respect copyright.ＰＥＮＡＮＡU01egCvhHw
626Please respect copyright.ＰＥＮＡＮＡKNXHeEUORx
626Please respect copyright.ＰＥＮＡＮＡKmgaFQ7bTu
626Please respect copyright.ＰＥＮＡＮＡgFKb5DhyxT
（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。626Please respect copyright.ＰＥＮＡＮＡ85czLZCmAY
626Please respect copyright.ＰＥＮＡＮＡOKVAWv7S9Y
626Please respect copyright.ＰＥＮＡＮＡazqaDYNzzM
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。626Please respect copyright.ＰＥＮＡＮＡQKdNKhODlz
626Please respect copyright.ＰＥＮＡＮＡWXenQL5QUb
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。626Please respect copyright.ＰＥＮＡＮＡpl9obc49uf
626Please respect copyright.ＰＥＮＡＮＡSeyOyDc2UF
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)。626Please respect copyright.ＰＥＮＡＮＡS5lSqruZm9
626Please respect copyright.ＰＥＮＡＮＡB2r8EZjlxX
626Please respect copyright.ＰＥＮＡＮＡmePAuJxt7X
（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。626Please respect copyright.ＰＥＮＡＮＡ8R5jxWjyAg
626Please respect copyright.ＰＥＮＡＮＡiplQmuvbGQ
626Please respect copyright.ＰＥＮＡＮＡNQC21HTJ3L
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。626Please respect copyright.ＰＥＮＡＮＡ80FeCBsi3T
626Please respect copyright.ＰＥＮＡＮＡSkLvTw5YQk
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。626Please respect copyright.ＰＥＮＡＮＡA0bMB2mLY1
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。626Please respect copyright.ＰＥＮＡＮＡqxd1AsQN4a
626Please respect copyright.ＰＥＮＡＮＡioUCcjUa0n
626Please respect copyright.ＰＥＮＡＮＡT3BVlLAv26
（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)，626Please respect copyright.ＰＥＮＡＮＡ3m8FaYnSQZ
626Please respect copyright.ＰＥＮＡＮＡoyZJdX27T0
626Please respect copyright.ＰＥＮＡＮＡVb8NjyJDQx
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。626Please respect copyright.ＰＥＮＡＮＡFJ7zU9nEHd
626Please respect copyright.ＰＥＮＡＮＡONk9sPaD2j
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。626Please respect copyright.ＰＥＮＡＮＡAuR3ibdyfu
626Please respect copyright.ＰＥＮＡＮＡ3341agBnVG
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。626Please respect copyright.ＰＥＮＡＮＡZwn6rrvdDR
626Please respect copyright.ＰＥＮＡＮＡcnXDK13F1J
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/toc626Please respect copyright.ＰＥＮＡＮＡPTeb5U8UT5
626Please respect copyright.ＰＥＮＡＮＡIzLOnM9iZQ
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。626Please respect copyright.ＰＥＮＡＮＡrNV5q8oWD1
626Please respect copyright.ＰＥＮＡＮＡVcnn4elb70
Link:626Please respect copyright.ＰＥＮＡＮＡn3GNmMVOlD
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio626Please respect copyright.ＰＥＮＡＮＡqt0Hxz7mQj
626Please respect copyright.ＰＥＮＡＮＡORlX99Ng8R
626Please respect copyright.ＰＥＮＡＮＡH8dxqXEUgV
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。626Please respect copyright.ＰＥＮＡＮＡvQSv6XGBzG
626Please respect copyright.ＰＥＮＡＮＡNlg5zwBhNw
https://www.instagram.com/potatopigtongue/626Please respect copyright.ＰＥＮＡＮＡh4JRo5yTqk
626Please respect copyright.ＰＥＮＡＮＡXd4QZ73v27
626Please respect copyright.ＰＥＮＡＮＡwHK33iE2Ts
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.45da2
