黑色的秀髮，最主要是由真黑素(Eumelanin)天然染成。653Please respect copyright.ＰＥＮＡＮＡmVIrwntxIt
653Please respect copyright.ＰＥＮＡＮＡuziLPkmPqt
653Please respect copyright.ＰＥＮＡＮＡEfkcJHUdKo
653Please respect copyright.ＰＥＮＡＮＡQNatZSynBt
（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。653Please respect copyright.ＰＥＮＡＮＡyX04rgqAuy
653Please respect copyright.ＰＥＮＡＮＡw1h4927taq
653Please respect copyright.ＰＥＮＡＮＡvpC3EdTKJd
653Please respect copyright.ＰＥＮＡＮＡqKx7i6bCgq
（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。653Please respect copyright.ＰＥＮＡＮＡdPR85C54nn
653Please respect copyright.ＰＥＮＡＮＡJQ9tfaoYol
653Please respect copyright.ＰＥＮＡＮＡXkuKqZTd3K
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。653Please respect copyright.ＰＥＮＡＮＡUUyiGY8L9p
653Please respect copyright.ＰＥＮＡＮＡ7IDtSvulcT
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。653Please respect copyright.ＰＥＮＡＮＡmy4Sy9TBI0
653Please respect copyright.ＰＥＮＡＮＡujAYDwQwpB
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)。653Please respect copyright.ＰＥＮＡＮＡLF0umxnGqA
653Please respect copyright.ＰＥＮＡＮＡtLYr2jjmdd
653Please respect copyright.ＰＥＮＡＮＡAderOPEkac
（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。653Please respect copyright.ＰＥＮＡＮＡ3Iz1qs2nzi
653Please respect copyright.ＰＥＮＡＮＡJjAlKTObK9
653Please respect copyright.ＰＥＮＡＮＡ0kvC7rlVnJ
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。653Please respect copyright.ＰＥＮＡＮＡjQS1V8AvGU
653Please respect copyright.ＰＥＮＡＮＡKdxZrFdXOh
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。653Please respect copyright.ＰＥＮＡＮＡdU4KtktOdJ
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。653Please respect copyright.ＰＥＮＡＮＡ9fXirxtF1G
653Please respect copyright.ＰＥＮＡＮＡxonLrsLRz0
653Please respect copyright.ＰＥＮＡＮＡgNYEPOlsur
（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)，653Please respect copyright.ＰＥＮＡＮＡOR3C7viQzm
653Please respect copyright.ＰＥＮＡＮＡtQgEp8Ud2J
653Please respect copyright.ＰＥＮＡＮＡasGwE76RxM
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。653Please respect copyright.ＰＥＮＡＮＡeQszwxmFoA
653Please respect copyright.ＰＥＮＡＮＡQvWra9zh40
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。653Please respect copyright.ＰＥＮＡＮＡ5eq0TP7Ry4
653Please respect copyright.ＰＥＮＡＮＡuE5QBnjxmq
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。653Please respect copyright.ＰＥＮＡＮＡHI7NCPMNk9
653Please respect copyright.ＰＥＮＡＮＡaBjBO8AsPV
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/toc653Please respect copyright.ＰＥＮＡＮＡjMDfM9tnuc
653Please respect copyright.ＰＥＮＡＮＡUVLwCoY6Qu
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。653Please respect copyright.ＰＥＮＡＮＡRWxhk89Vj4
653Please respect copyright.ＰＥＮＡＮＡTLG5cpuAXb
Link:653Please respect copyright.ＰＥＮＡＮＡy4EuWNOgxh
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio653Please respect copyright.ＰＥＮＡＮＡVFBPSpYWd2
653Please respect copyright.ＰＥＮＡＮＡYbIHA2CC2E
653Please respect copyright.ＰＥＮＡＮＡh6zj5LI7hY
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。653Please respect copyright.ＰＥＮＡＮＡv4QWBqpAaM
653Please respect copyright.ＰＥＮＡＮＡWnNRYViJP0
https://www.instagram.com/potatopigtongue/653Please respect copyright.ＰＥＮＡＮＡK0H9ROVEvs
653Please respect copyright.ＰＥＮＡＮＡNO3XzgugLN
653Please respect copyright.ＰＥＮＡＮＡ6H9iBdJsPr
Ref1:https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.0c02790
00
ns216.73.216.251da2
