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納米細菌

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ALH84001隕石碎片發現的結構

納米細菌是一種具有細胞壁微生物。其體直徑約為200納米,是可於正常光學顯微鏡下成像的物件最小尺寸,大大低於細菌的理論下限。1996年,尚未發現納米細菌時,這個大小被假定的理由是「現時所知生物需要用到的最小體型」。

有關牠們為生命體的報告是相當具衝擊性的。[1]假如這些微小的東西是生存著的,那麼就意味著一種與細菌完全不同的嶄新生命形式被發現。[2]但最近研究發現纳米细菌只是矿物质与蛋白质形成的晶体,無關生命。其出现可能暗示人体代谢机制出现异常。[3]鈣化納米顆粒 (CNPs) 被用作迴避有關這種生命形式的所有難題。雖然納米生物時常與納米細菌扯上關係,甚至時而被當作其同義詞,可是有關兩者的關係暫時並未明朗。

引文參考

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  1. ^ Kajander E. Nanobacteria--propagating calcifying nanoparticles. Lett Appl Microbiol. 2006, 42 (6): 549–52. PMID 16706890. 
  2. ^ Ciftcioglu N, McKay D, Mathew G, Kajander E. Nanobacteria: fact or fiction? Characteristics, detection, and medical importance of novel self-replicating, calcifying nanoparticles. J Investig Med. 2006, 54 (7): 385–94. PMID 17169260. 
  3. ^ 2010年第2期《环球科学》. [2010-02-07]. (原始内容存档于2018-11-27). 

其他参考

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外部連結

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納米細菌
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