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。789Please respect copyright.PENANALA27A6Qn8g
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。789Please respect copyright.PENANA17N9oYmZsD789Please respect copyright.PENANAuhWtgUuzHA
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?789Please respect copyright.PENANAGy0iaiuuym
789Please respect copyright.PENANA0HIYFf9Kgp
789Please respect copyright.PENANAq1S0XsT5KN
789Please respect copyright.PENANA7TyQKhQ09g
(圖2)答案很簡單,就是把那些細胞器官通通摧毀。789Please respect copyright.PENANAlMbXBEdSH9789Please respect copyright.PENANA4V9EdBpq2p
789Please respect copyright.PENANAWXWL4zWF4b
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。789Please respect copyright.PENANAfXlFI5cqne
789Please respect copyright.PENANA3gOhJdIfAR
789Please respect copyright.PENANAarIcoBnb66
(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。789Please respect copyright.PENANAvrJee4Uhpd789Please respect copyright.PENANA5H0aW12tVw
789Please respect copyright.PENANApGksWTKfmv
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。789Please respect copyright.PENANAzSBgScrp5n
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。789Please respect copyright.PENANAiCVBs79db0
789Please respect copyright.PENANA2eb7ZwhsPE
789Please respect copyright.PENANATOFBoeTAhd
(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,789Please respect copyright.PENANAX1GgmCu783
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。789Please respect copyright.PENANAJFcPFF7SNe789Please respect copyright.PENANAMyQfdtSIoQ
789Please respect copyright.PENANAwwFr1YDmds
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。789Please respect copyright.PENANAdz0kNP81VQ
789Please respect copyright.PENANAeiawL5gFwb
789Please respect copyright.PENANA5diCGffcYl
(圖5)除班馬魚外,研究人員亦有利用老鼠進行實驗。789Please respect copyright.PENANAHuokJniXOd789Please respect copyright.PENANA2YWwkoddFo
789Please respect copyright.PENANALvMz3uFrsq
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。789Please respect copyright.PENANAPVMSOmLxNN
789Please respect copyright.PENANAmUB0lJ2SsB
789Please respect copyright.PENANA2HWMuGu55a
789Please respect copyright.PENANAaLOUL4Gykp
789Please respect copyright.PENANAMjU5n9XlGb
789Please respect copyright.PENANAwWF1ynZoip
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。789Please respect copyright.PENANAslTZUijisN
789Please respect copyright.PENANAFw3e1DwFWH
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/toc789Please respect copyright.PENANAlRPu4Fg8ZW
789Please respect copyright.PENANAXjN7Sc702z
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。789Please respect copyright.PENANAAAVPeKaX7h
789Please respect copyright.PENANAP66naZp3PN
Link:789Please respect copyright.PENANAk2swPCo7aa
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio789Please respect copyright.PENANA9BN09qW6ER
789Please respect copyright.PENANAMrMJDd0cBd
789Please respect copyright.PENANALOr8cgycUr
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。789Please respect copyright.PENANAJqK2EwSFx8
789Please respect copyright.PENANArwZhO7iViK
Ref1:https://www.nature.com/articles/s41586-021-03439-w789Please respect copyright.PENANAjbRjNJsSec
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #205
三十秒科學–雪亮的眼睛
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