x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。574Please respect copyright.ＰＥＮＡＮＡ6vwkNQ7DYF
574Please respect copyright.ＰＥＮＡＮＡemf7KSUIC8
574Please respect copyright.ＰＥＮＡＮＡmm7Tf82RQ7
574Please respect copyright.ＰＥＮＡＮＡJg7SgfZGN8
（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。574Please respect copyright.ＰＥＮＡＮＡOoe2IC8KMx
574Please respect copyright.ＰＥＮＡＮＡGnQ3u2JG04
574Please respect copyright.ＰＥＮＡＮＡ25WTp3K3I4
574Please respect copyright.ＰＥＮＡＮＡjkeoXfwxNy
（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。574Please respect copyright.ＰＥＮＡＮＡ0Fm2m5IcVw
574Please respect copyright.ＰＥＮＡＮＡqO5cj3XC7P
574Please respect copyright.ＰＥＮＡＮＡAVWmBYZiWI
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。574Please respect copyright.ＰＥＮＡＮＡQJIflV7N6e
574Please respect copyright.ＰＥＮＡＮＡSkIr4jQlGN
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。574Please respect copyright.ＰＥＮＡＮＡuJHsRWVOkd
574Please respect copyright.ＰＥＮＡＮＡulQWJLfjDU
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)。574Please respect copyright.ＰＥＮＡＮＡjio4G1PnTs
574Please respect copyright.ＰＥＮＡＮＡA07AmKrVEW
574Please respect copyright.ＰＥＮＡＮＡaLMc3dltiP
（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。574Please respect copyright.ＰＥＮＡＮＡBvdccXA4E5
574Please respect copyright.ＰＥＮＡＮＡ1myrsZrA0B
574Please respect copyright.ＰＥＮＡＮＡkMjXfEXKKW
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。574Please respect copyright.ＰＥＮＡＮＡ8W73gIKekB
574Please respect copyright.ＰＥＮＡＮＡhMa0OQod4u
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。574Please respect copyright.ＰＥＮＡＮＡeFiw3HgIcK
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。574Please respect copyright.ＰＥＮＡＮＡ4f4c5eS59Z
574Please respect copyright.ＰＥＮＡＮＡe0sfZPBQry
574Please respect copyright.ＰＥＮＡＮＡdkznVAnDMp
（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)，574Please respect copyright.ＰＥＮＡＮＡo5jgJ2fbLQ
574Please respect copyright.ＰＥＮＡＮＡn9SmKqSzvl
574Please respect copyright.ＰＥＮＡＮＡwm7DgWkn1O
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。574Please respect copyright.ＰＥＮＡＮＡSNQ0EYiUVp
574Please respect copyright.ＰＥＮＡＮＡjGJzCj9fea
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。574Please respect copyright.ＰＥＮＡＮＡhWF5koIvb2
574Please respect copyright.ＰＥＮＡＮＡDCri6LKwYX
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。574Please respect copyright.ＰＥＮＡＮＡNgeZQ4a0ro
574Please respect copyright.ＰＥＮＡＮＡSsvZhyBzoQ
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/toc574Please respect copyright.ＰＥＮＡＮＡgT2ALmzxLO
574Please respect copyright.ＰＥＮＡＮＡDuSeGVUjBa
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。574Please respect copyright.ＰＥＮＡＮＡeOCi5Gr0l8
574Please respect copyright.ＰＥＮＡＮＡWy0y2OfHWh
Link:574Please respect copyright.ＰＥＮＡＮＡXDAS5D8GAJ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio574Please respect copyright.ＰＥＮＡＮＡ5aY83oMqAR
574Please respect copyright.ＰＥＮＡＮＡZO43XnTMh7
574Please respect copyright.ＰＥＮＡＮＡU6hGxe2tCE
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。574Please respect copyright.ＰＥＮＡＮＡZBEKRkJUov
574Please respect copyright.ＰＥＮＡＮＡRbpZ12jj0K
https://www.instagram.com/potatopigtongue/574Please respect copyright.ＰＥＮＡＮＡrHQjK5vo3T
574Please respect copyright.ＰＥＮＡＮＡKMY3pN59S6
574Please respect copyright.ＰＥＮＡＮＡxYxPUBUBOI
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns3.15.228.200da2
