科普專欄–薯不揀單 - 三十秒科學–雪亮的眼睛

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.ＰＥＮＡＮＡ17N9oYmZsD
789Please 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.ＰＥＮＡＮＡlMbXBEdSH9
789Please 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.ＰＥＮＡＮＡvrJee4Uhpd
789Please 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.ＰＥＮＡＮＡJFcPFF7SNe
789Please 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.ＰＥＮＡＮＡHuokJniXOd
789Please 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

ns216.73.216.239da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章