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。644Please respect copyright.ＰＥＮＡＮＡPzjZ7yuc6E
644Please respect copyright.ＰＥＮＡＮＡbLM0ILlFzn
644Please respect copyright.ＰＥＮＡＮＡRZi12YooPq
644Please respect copyright.ＰＥＮＡＮＡNgz8NEIDZO
雖然它們被稱為稀土，但事實上它們並不真的是如此稀有。644Please respect copyright.ＰＥＮＡＮＡVktbf12QDu
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。644Please respect copyright.ＰＥＮＡＮＡ0U7d12hT51
644Please respect copyright.ＰＥＮＡＮＡXpy1AvoyTi
（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。644Please respect copyright.ＰＥＮＡＮＡlDYEmtFvhE
644Please respect copyright.ＰＥＮＡＮＡLC7THsaRue
644Please respect copyright.ＰＥＮＡＮＡnOhg16azfm
644Please respect copyright.ＰＥＮＡＮＡODKx0Amw0V
這蛋白質有三大特性，644Please respect copyright.ＰＥＮＡＮＡIoTtCLPkYv
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。644Please respect copyright.ＰＥＮＡＮＡ3CapDJmETw
644Please respect copyright.ＰＥＮＡＮＡtoHDlCBFyF
2.攝氏95度下仍然正常運作。644Please respect copyright.ＰＥＮＡＮＡOgqaAQ4BQ4
644Please respect copyright.ＰＥＮＡＮＡ1inuhw6zEh
3.pH2.5酸性環境仍能正常運作。644Please respect copyright.ＰＥＮＡＮＡTJid97Uhex
644Please respect copyright.ＰＥＮＡＮＡUPejmHWihU
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。644Please respect copyright.ＰＥＮＡＮＡaPNA4wJYve
644Please respect copyright.ＰＥＮＡＮＡ3NN6YiSe4O
（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。644Please respect copyright.ＰＥＮＡＮＡVvrlSpiDMu
644Please respect copyright.ＰＥＮＡＮＡ1NBUcm12dv
644Please respect copyright.ＰＥＮＡＮＡuBWZJwmsez
644Please respect copyright.ＰＥＮＡＮＡYSncpkFqJB
644Please respect copyright.ＰＥＮＡＮＡruSKmEQpDR
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。644Please respect copyright.ＰＥＮＡＮＡUxZNJoUx9m
644Please respect copyright.ＰＥＮＡＮＡc0VA6aFezV
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/toc644Please respect copyright.ＰＥＮＡＮＡSqJ1PkV07C
644Please respect copyright.ＰＥＮＡＮＡhY00M4lxPV
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。644Please respect copyright.ＰＥＮＡＮＡvsqBf7vFLF
644Please respect copyright.ＰＥＮＡＮＡC3QYuwlymq
Link:644Please respect copyright.ＰＥＮＡＮＡrrwaggfS7i
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio644Please respect copyright.ＰＥＮＡＮＡVyUhuHWe4I
644Please respect copyright.ＰＥＮＡＮＡxGYD8GLElB
644Please respect copyright.ＰＥＮＡＮＡii7213rJVS
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。644Please respect copyright.ＰＥＮＡＮＡl02e5p3UVe
644Please respect copyright.ＰＥＮＡＮＡffN9XRBoax
644Please respect copyright.ＰＥＮＡＮＡVaQwPapNW2
Ref1:https://pubmed.ncbi.nlm.nih.gov/30705185/644Please respect copyright.ＰＥＮＡＮＡyWZlkoT33F
Ref2:https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01303644Please respect copyright.ＰＥＮＡＮＡv7BhONV866

ns18.118.109.216da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章