x
黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。515Please respect copyright.ＰＥＮＡＮＡPbCbPgqpzY
515Please respect copyright.ＰＥＮＡＮＡeoaHTQFJEU
515Please respect copyright.ＰＥＮＡＮＡFOtUP5PYdX
515Please respect copyright.ＰＥＮＡＮＡQGEZAXnYMz
（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。515Please respect copyright.ＰＥＮＡＮＡuU1HiLlZkY
515Please respect copyright.ＰＥＮＡＮＡgkcU14Xfvv
515Please respect copyright.ＰＥＮＡＮＡ74d5u1ylLg
515Please respect copyright.ＰＥＮＡＮＡ47hodFq5cZ
（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。515Please respect copyright.ＰＥＮＡＮＡopLHi272MG
515Please respect copyright.ＰＥＮＡＮＡrd3XOsQR2E
515Please respect copyright.ＰＥＮＡＮＡqtSQ4f4ay0
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。515Please respect copyright.ＰＥＮＡＮＡ0mBpXjjDfb
515Please respect copyright.ＰＥＮＡＮＡQy3JDOf5kg
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。515Please respect copyright.ＰＥＮＡＮＡlen6IiDcSc
515Please respect copyright.ＰＥＮＡＮＡMwEwtXtn2y
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)。515Please respect copyright.ＰＥＮＡＮＡqn4KTDyA9v
515Please respect copyright.ＰＥＮＡＮＡlzDZcF3GZP
515Please respect copyright.ＰＥＮＡＮＡfKSJp54AVI
（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。515Please respect copyright.ＰＥＮＡＮＡcgC1aab737
515Please respect copyright.ＰＥＮＡＮＡwvUtWh55uI
515Please respect copyright.ＰＥＮＡＮＡ5idHv8vc2p
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。515Please respect copyright.ＰＥＮＡＮＡHDKAVO8SrL
515Please respect copyright.ＰＥＮＡＮＡ8lUJjg49SJ
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。515Please respect copyright.ＰＥＮＡＮＡW9PFcKZG72
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。515Please respect copyright.ＰＥＮＡＮＡSNiPjgqBUq
515Please respect copyright.ＰＥＮＡＮＡK2ELlAsI3F
515Please respect copyright.ＰＥＮＡＮＡv8gLTvFS20
（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)，515Please respect copyright.ＰＥＮＡＮＡAitYdu3DmP
515Please respect copyright.ＰＥＮＡＮＡ8rhKLv0oKp
515Please respect copyright.ＰＥＮＡＮＡRQJ5npT3kJ
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。515Please respect copyright.ＰＥＮＡＮＡtSE9BsTc0d
515Please respect copyright.ＰＥＮＡＮＡLStXUHS9pP
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。515Please respect copyright.ＰＥＮＡＮＡ4aRK0UdocA
515Please respect copyright.ＰＥＮＡＮＡ82xrqljP5x
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。515Please respect copyright.ＰＥＮＡＮＡKNJRzB6f5S
515Please respect copyright.ＰＥＮＡＮＡ00UjHB46am
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/toc515Please respect copyright.ＰＥＮＡＮＡU7oI12rfRH
515Please respect copyright.ＰＥＮＡＮＡPkNI9jR0c4
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。515Please respect copyright.ＰＥＮＡＮＡfbvdZu8Moj
515Please respect copyright.ＰＥＮＡＮＡXVncN7ZSa7
Link:515Please respect copyright.ＰＥＮＡＮＡgFjpbcDeFj
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio515Please respect copyright.ＰＥＮＡＮＡPSfhc8PGPF
515Please respect copyright.ＰＥＮＡＮＡezatLPehfv
515Please respect copyright.ＰＥＮＡＮＡgha4tXc7cw
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。515Please respect copyright.ＰＥＮＡＮＡ7VSEdePiYj
515Please respect copyright.ＰＥＮＡＮＡFNDvgcPD7u
https://www.instagram.com/potatopigtongue/515Please respect copyright.ＰＥＮＡＮＡjWc1FEbrBK
515Please respect copyright.ＰＥＮＡＮＡNXyBToCS25
515Please respect copyright.ＰＥＮＡＮＡMGQbestZIc
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns 15.158.61.6da2
