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。610Please respect copyright.PENANA2u0KmFapIr
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。610Please respect copyright.PENANAzjL2qtc4XF
610Please respect copyright.PENANA0D78paYzA2
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?610Please respect copyright.PENANA3UfgkqlZUp
610Please respect copyright.PENANArtwjVWedCZ
610Please respect copyright.PENANAmEy6zuoIl0
610Please respect copyright.PENANANrIDNbHQXT
(圖2)答案很簡單,就是把那些細胞器官通通摧毀。610Please respect copyright.PENANAzYqfHQ79Yd
610Please respect copyright.PENANAn67vzijfj4
610Please respect copyright.PENANACaXxEaA6NN
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。610Please respect copyright.PENANAKPygkCoW0N
610Please respect copyright.PENANAwUiqQtzTtb
610Please respect copyright.PENANAqPVW07vMwP
(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。610Please respect copyright.PENANARfso3PDlDC
610Please respect copyright.PENANACmNMIoZ8D2
610Please respect copyright.PENANAil1Hgbzc6w
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。610Please respect copyright.PENANA2benQNrQtw
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。610Please respect copyright.PENANAaFqaykUiwV
610Please respect copyright.PENANAq1EF2a2cR8
610Please respect copyright.PENANAnGwYDOIRbJ
(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,610Please respect copyright.PENANA3P8QiZz5c7
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。610Please respect copyright.PENANAt4gRuMlRz7
610Please respect copyright.PENANASQuMDiYgso
610Please respect copyright.PENANAbyDXo6N0ZU
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。610Please respect copyright.PENANAlaVJOPS0is
610Please respect copyright.PENANAuDBvGlAO75
610Please respect copyright.PENANAorkQSbKt4J
(圖5)除班馬魚外,研究人員亦有利用老鼠進行實驗。610Please respect copyright.PENANAeB37pUo90F
610Please respect copyright.PENANAWTW9Yo1Aba
610Please respect copyright.PENANAQViXlNtNAv
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。610Please respect copyright.PENANAQuO7Hd5av1
610Please respect copyright.PENANAd9dM3bctQi
610Please respect copyright.PENANAuzdBk96XQb
610Please respect copyright.PENANAveYODOrJcx
610Please respect copyright.PENANAw54zEJH6Cs
610Please respect copyright.PENANAQgdUzwLO2N
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。610Please respect copyright.PENANAbB3LhaxiUu
610Please respect copyright.PENANAANtXzcaRoq
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/toc610Please respect copyright.PENANAWbCJFR95dq
610Please respect copyright.PENANADlpFCgyOpn
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。610Please respect copyright.PENANAByVGdyT4l3
610Please respect copyright.PENANAYrMo7hjjNl
Link:610Please respect copyright.PENANAr4dgKG0G0A
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio610Please respect copyright.PENANAeaLlSo1aMi
610Please respect copyright.PENANAAWqVt5rNHe
610Please respect copyright.PENANAWY38b4koHV
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。610Please respect copyright.PENANA8vgLqQj0Zg
610Please respect copyright.PENANA8Iqjec4wTM
Ref1:https://www.nature.com/articles/s41586-021-03439-w610Please respect copyright.PENANAl2pBtJ03hD
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科普專欄–薯不揀單
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薯仔聞茱莉
篇 #205
三十秒科學–雪亮的眼睛
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