科普專欄–薯不揀單 - 深入淺出–利用細菌蛋白質提取稀土金屬

稀土泛指17種特性相似的金屬，較常用在作醫療設備之上，其中一種 (Promethium, Pm)為具放射性的物質。670Please respect copyright.ＰＥＮＡＮＡIiboZlNLkU
670Please respect copyright.ＰＥＮＡＮＡX1ocAwEyb1
670Please respect copyright.ＰＥＮＡＮＡtoOqCOsYk1
670Please respect copyright.ＰＥＮＡＮＡw0aBerFUGu
雖然它們被稱為稀土，但事實上它們並不真的是如此稀有。670Please respect copyright.ＰＥＮＡＮＡNVweQA7KSJ
圖1圖中的圓點為各種稀土金屬蘊藏量，大部份與錫的含量相約，且遠高於大自然間的水銀含量。670Please respect copyright.ＰＥＮＡＮＡuOyXRUFHP6
670Please respect copyright.ＰＥＮＡＮＡeHB6EW7MAd
（圖2）近日有科學家發表文章（Ref2)，從需要攝取稀土金屬才能運作的細菌中抽取一種名為Lanmodulin的蛋白質。670Please respect copyright.ＰＥＮＡＮＡdiGayjNUef
670Please respect copyright.ＰＥＮＡＮＡJweHHWOiHv
670Please respect copyright.ＰＥＮＡＮＡeE3hXMqUhc
670Please respect copyright.ＰＥＮＡＮＡR4qeMLZ1Qk
這蛋白質有三大特性，670Please respect copyright.ＰＥＮＡＮＡKt82jThNxl
1.能夠選擇性地黏上稀土金屬，不會黏上銅鋅鎂等非稀土金屬。670Please respect copyright.ＰＥＮＡＮＡebdcJRP19c
670Please respect copyright.ＰＥＮＡＮＡG4Tsft3CJ2
2.攝氏95度下仍然正常運作。670Please respect copyright.ＰＥＮＡＮＡp7oy0jXhZi
670Please respect copyright.ＰＥＮＡＮＡCCgPsseHe7
3.pH2.5酸性環境仍能正常運作。670Please respect copyright.ＰＥＮＡＮＡqgjnsUM3eW
670Please respect copyright.ＰＥＮＡＮＡGI3Ik4YaZY
對比常用的一種金屬提取物質EDTA，Lanmodulin不但之對稀土金屬更具選擇性，而且親和力更高出5-10倍或以上。670Please respect copyright.ＰＥＮＡＮＡrDZqypPXxC
670Please respect copyright.ＰＥＮＡＮＡdIZH4bs2hS
（圖3）電子廢物普遍會溶解在pH3.0的酸性環境使金屬呈離子狀態，有著Lanmodulin的幫助下，舊有的繁複及高能源消耗的提取稀土金屬辦法亦將能逐漸退出市場，各國亦能更有效從各電子儀器中回收稀土金屬，再進一步減少對中國的依賴。670Please respect copyright.ＰＥＮＡＮＡC7V9hirCnR
670Please respect copyright.ＰＥＮＡＮＡHb5uN4m0sH
670Please respect copyright.ＰＥＮＡＮＡEJZPgMFfo5
670Please respect copyright.ＰＥＮＡＮＡnVHkj0RU1u
670Please respect copyright.ＰＥＮＡＮＡTNnZzY8NMk
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。670Please respect copyright.ＰＥＮＡＮＡ38N3p1mbUy
670Please respect copyright.ＰＥＮＡＮＡVfnlzkTmZT
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/toc670Please respect copyright.ＰＥＮＡＮＡwoh8seaUoT
670Please respect copyright.ＰＥＮＡＮＡYegFHOMkBa
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。670Please respect copyright.ＰＥＮＡＮＡiMFeK4GSnk
670Please respect copyright.ＰＥＮＡＮＡwEnoNLFZom
Link:670Please respect copyright.ＰＥＮＡＮＡmeeP1wj3IW
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio670Please respect copyright.ＰＥＮＡＮＡurudg5SxoO
670Please respect copyright.ＰＥＮＡＮＡGqk9OouDB3
670Please respect copyright.ＰＥＮＡＮＡbH7S5gx0UG
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。670Please respect copyright.ＰＥＮＡＮＡtS2JNYi6Z3
670Please respect copyright.ＰＥＮＡＮＡVEhQqgPu9y
670Please respect copyright.ＰＥＮＡＮＡeS0a8EJZTT
Ref1:https://pubmed.ncbi.nlm.nih.gov/30705185/670Please respect copyright.ＰＥＮＡＮＡ61ket9Hz9r
Ref2:https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01303670Please respect copyright.ＰＥＮＡＮＡ3zbKLAVIiW

ns18.223.162.48da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章