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。681Please respect copyright.PENANAcLWz9oIA1K
681Please respect copyright.PENANAracW0V14SG681Please respect copyright.PENANAMi8jPc7qAb
681Please respect copyright.PENANAg5xtTAafnU
雖然它們被稱為稀土,但事實上它們並不真的是如此稀有。681Please respect copyright.PENANAQEU5ve57fI
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。681Please respect copyright.PENANAxjCog7cAXd
681Please respect copyright.PENANA9MwLALF3yW
(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。681Please respect copyright.PENANAV9QiWooJWp
681Please respect copyright.PENANAhHP8LZHpz4681Please respect copyright.PENANA83ntemUKTo
681Please respect copyright.PENANANREzGPwgSK
這蛋白質有三大特性,681Please respect copyright.PENANAwuzOUcXZU2
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。681Please respect copyright.PENANAtRSSRJ1jij
681Please respect copyright.PENANA4oc2M93NwB
2.攝氏95度下仍然正常運作。681Please respect copyright.PENANAr0fhyfFH1d
681Please respect copyright.PENANARYww6KPATy
3.pH2.5酸性環境仍能正常運作。681Please respect copyright.PENANAxK3rEBBCij
681Please respect copyright.PENANAR8fQAsESoH
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。681Please respect copyright.PENANAFi6vbn72gj
681Please respect copyright.PENANA9L9f6D4pFE
(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。681Please respect copyright.PENANAp0hik4PeGs
681Please respect copyright.PENANATGJF0wzb4G681Please respect copyright.PENANAeSwDDpYf0N
681Please respect copyright.PENANApcNskDX9X4
681Please respect copyright.PENANAtWZWzu7K5I
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。681Please respect copyright.PENANANuWt7qIVbr
681Please respect copyright.PENANA3C5vVECxf8
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/toc681Please respect copyright.PENANAyyEVDGAfzN
681Please respect copyright.PENANAXcBpDrveAy
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。681Please respect copyright.PENANAMLHXKXGaru
681Please respect copyright.PENANAbVTtdAcDgS
Link:681Please respect copyright.PENANAhA1PCOn1UN
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio681Please respect copyright.PENANAXwk676cs9u
681Please respect copyright.PENANAHVu3lZlqGp
681Please respect copyright.PENANA0pUfRnj1ru
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。681Please respect copyright.PENANA4N6IiGDmfq
681Please respect copyright.PENANAIRunHjgMjH
681Please respect copyright.PENANAthKsD5g517
Ref1:https://pubmed.ncbi.nlm.nih.gov/30705185/681Please respect copyright.PENANA9dsSQbWiGK
Ref2:https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01303681Please respect copyright.PENANA1AcLQGnvy6