我們身體的各部份均是由細胞組成,眼睛晶片也自當然不例外。790Please respect copyright.PENANAEiLYMLpa1e
但細胞裡頭有著各式各樣的細胞器官,例如負責製造能源的粒線體(mitochondria)、收藏DNA的細胞核(nucleus)等,它們顯然並不是透明的。790Please respect copyright.PENANAbBBl5ibEUc790Please respect copyright.PENANAeOLaCRIejF
究竟身體有甚麼方法可以製造透明且能讓光線通過的眼鏡晶片呢?790Please respect copyright.PENANAA6pvBNIn5u
790Please respect copyright.PENANAkKL2QaVRKm
790Please respect copyright.PENANAJAnQFJfJ9U
790Please respect copyright.PENANAsG8HqQaDI5
(圖2)答案很簡單,就是把那些細胞器官通通摧毀。790Please respect copyright.PENANAxT4cbCOtlr790Please respect copyright.PENANAUlCR5gVyv6
790Please respect copyright.PENANAoQ6jE1W1PX
從圖中可見,晶片的外圍有著表皮細胞(Epithelial cells)以及纖維細胞(Fibre cells),唯獨是中間區域的細胞,它們的細胞器官均接近得消失得一乾二淨。790Please respect copyright.PENANAhi3XrBGpqP
790Please respect copyright.PENANAFJszvdxfJD
790Please respect copyright.PENANAAiir65UarI
(圖3)有科學家利用班馬魚作動物模型,並將兩款細胞器官分別染成綠色及紅色。790Please respect copyright.PENANAwOF4f4O9k8790Please respect copyright.PENANAk80NyXYwuO
790Please respect copyright.PENANAiK7E0e7bPB
從圖中可見,直至班馬魚受精後約59小時左右,綠色及紅色均分別清晰可見及有著其獨特的分佈,表示兩款細胞器官非常健在。790Please respect copyright.PENANAoiQagFQ5bs
但在約60小時打後,紅色和綠色開始有著衰退的現象,亦即表示細胞器官開始逐漸被受摧毀。790Please respect copyright.PENANAK6xQxmtqjX
790Please respect copyright.PENANATA2yxMSg0Q
790Please respect copyright.PENANAzfKmrot45P
(圖4)找出眼睛晶片的細胞器官被受摧毀的時段後,研究人員便著手進行一系列的實驗,790Please respect copyright.PENANAmht8CHWxOa
並發現名為plaat的蛋白質負責在細胞器官的外膜進行破壞,因而引發細胞器官摧毀的過程。790Please respect copyright.PENANALWBsqENgAy790Please respect copyright.PENANAzTclRUOmXt
790Please respect copyright.PENANA5uwcwGRm2l
圖中為班馬魚的眼睛晶片,可見因為缺乏plaat蛋白質的緣故,細胞器官沒能完整摧毀,其晶片亦變得相對上混濁及不透光,影像亦較為不清晰。790Please respect copyright.PENANAVdSkLrS3dW
790Please respect copyright.PENANAi3rp0iiU1Z
790Please respect copyright.PENANABJYyDtA8jr
(圖5)除班馬魚外,研究人員亦有利用老鼠進行實驗。790Please respect copyright.PENANAVtb9XU7O1R790Please respect copyright.PENANAt72Qo2uEpQ
790Please respect copyright.PENANAQ8JZplz1YV
跟班馬魚一樣,缺乏plaat蛋白質的老鼠眼睛晶片變得混濁及不透光,並影響視線。790Please respect copyright.PENANA6WKSD1pW4q
790Please respect copyright.PENANAGGZ7OBktzo
790Please respect copyright.PENANA1VnvODmAxZ
790Please respect copyright.PENANAARNZ9jrERP
790Please respect copyright.PENANAbyrktUVeJR
790Please respect copyright.PENANArRccU5iUIg
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。790Please respect copyright.PENANA5sJaGoJA4N
790Please respect copyright.PENANAKchlaU310Q
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/toc790Please respect copyright.PENANAwE2vsybnB9
790Please respect copyright.PENANAPi6q5QJM0n
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。790Please respect copyright.PENANAMmrm3TkHdo
790Please respect copyright.PENANAl36wiNLx5K
Link:790Please respect copyright.PENANABgl1m6XSj6
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio790Please respect copyright.PENANAPDZDUPd98y
790Please respect copyright.PENANAIckQWWJToy
790Please respect copyright.PENANApPJfCcodf5
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。790Please respect copyright.PENANAeDRJTjSXxP
790Please respect copyright.PENANAg93f8zNbmD
Ref1:https://www.nature.com/articles/s41586-021-03439-w790Please respect copyright.PENANAvKKEE3NR3J
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科普專欄–薯不揀單
Author:
薯仔聞茱莉

ISSUE #205
三十秒科學–雪亮的眼睛
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