时间:2024-11-21 22:52:16 来源:网络整理编辑:知識
GIFs are the fundamental building blocks of our digital existence. Whether they are in texts, tweets
GIFs are the fundamental building blocks of our digital existence. Whether they are in texts, tweets, or articles, GIFs are now a staple of how we communicate in the modern world.
But now GIFs are making their way to a new frontier: scientists have finally figured out how to store and retrieve them from bacterial DNA.
SEE ALSO:A new video shows you exactly what it looks like when DNA replicatesResearchers at Harvard Medical School used CRISPR, a new, incredibly precise and relatively cheap gene sequencing tool, to encode Eadweard Muybridge's 19th Century animation of a running horse, essentially the world's first GIF, inside bacterial DNA. (Writers note: NyanCat would have been our choice.)
While putting the animation on DNA is a feat within itself, impressively (and perhaps more importantly) researchers only made a few errors while sequencing the bacteria's genome to recreate the running horse. This means that the recording DNA can capture and replay events in the order in which they occurred. Their work, which was funded by the National Institutes of Health, was published this week in the journal Nature.
While this sounds like a breakthrough for GIF kind — after all, we can't recall a GIF being used in quite this way before — there are much larger implications medical science here.
"The point is not to store videos in bacteria," said Harvard Medical School neuroscientist Seth Shipman, in a video interview.
"We used the video because it's a good example of a complex piece of information that has both many parts to it (that is, many pixel values) and a time component that was organized over time. So, it was a good way for us to test if the CRISPR adaptation system that we're using could actually acquire enough information that we could go in and sequence the bacteria after we had encoded it and reconstruct the movie."
Shipman and his team's choice of a GIF as DNA storage test media is not surprising when you look at their long-term goal of biological recording.
Scientists can only see so far into their human body and its systems. No one knows, for instance, how neurons, which start out unspecialized in young brains, develop into distinct types of neurons.
But what if a cell with access to the brain could watch and record that development from day one and then, when the brain is matured, be extracted and, through CRISPR genome sequencing, play back the entire evolution of a neuron? It's only a start but this bacterial-encoded gif could be on small step toward making that dream a reality.
To test the time-based recording capabilities of biological DNA, Shipman's team fed in to the bacterial DNA strands the galloping horse GIF frame-by-frame over the course of five days.
As Shipman explained it in the video, the frames were all retrieved in their proper order, which means they could play back the GIF and still see the galloping horse, not a disjointed jumble of events. The system "captures the timing information of different molecular events," he said.
DNA typically stores the blueprint of biological organisms, but scientists have, in recent years, started investigating its data storage capabilities, especially the notion that you can store vast amounts of data in a molecule-sized space. Plus, when DNA is separated from a living organism, or that organism dies out around it, and the DNA dries out and is protected from the light (as it is in fossils), that data can be retrieved thousands of years later.
The Harvard team also sequenced the image of a hand onto biological DNA and then retrieved it.Credit: Harvard Medical SchoolRecent studies, though, have focused on synthetic DNA, which allows for similar storage in tiny spaces capabilities, but without the concern of data longevity outside an organism and in the light.
Last year researchers stored an entire OK Go music video on synthetic DNA and earlier this year, scientists at Columbia University stored and retrieved megabytes of data on synthetic DNA. Both methods, though were time-consuming and expensive. The integration of the CRISPR system holds out the promise of affordable and accurate storage and retrieval from biological systems.
"This recent result is pretty exciting in that it used genomic DNA editing techniques to 'log' data and store it in a cell's genome," said Luis Ceze, an associate professor of computer science and engineering at the University of Washington who worked on the OK Go DNA Storage project. "This can enable cell-based 'living sensors' that log information."
Ceze added, though, that the Harvard team's work is no way competitive with synthetic DNA storage systems. While Ceze hopes to build DNA-based storage that one day rivals our best Solid-State Drives, Shipman's work is about recording tiny bits of data in sequencewithin a cell. "You would not use it to store movies, but I would use synthetic DNA to store movies," said Ceze.
Ultimately, researchers want to place these engineered cells inside living organism where they can automatically record events (or changes) and then remove the smart cells and decode the DNA-stored information for full, sequential play back. The currently technology, however, required Shipman's team to manually enter the information. No one has trained the DNA and host cells to record on their own.
But that time is coming and, someday, our cells may be grabbing viral moments, literally, and playing them back as GIFs (or more).
TopicsInnovations
Give your kitchen sponge a rest on this adorable bed2024-11-21 22:38
羅馬諾 :米蘭商談租借狼堡19歲中場弗蘭克斯,買斷費1100萬歐元2024-11-21 21:41
3場4球,萊萬西甲進球數已追平阿紮爾2024-11-21 21:22
佩德裏為巴薩踢了77場後進球數達到10個 伊涅斯塔用了141場才上雙2024-11-21 21:10
Satisfy your Olympics withdrawals with Nike's latest app2024-11-21 21:06
英超綜合:熱刺力克“升班馬” 西漢姆聯迎賽季首勝2024-11-21 20:39
英超最新積分戰報熱刺追上曼城回前3紐卡3連平將曼聯擠出前72024-11-21 20:33
對門興兩進球被吹 ,馬內 :在VAR方麵 ,我仍然是不走運的2024-11-21 20:26
Give your kitchen sponge a rest on this adorable bed2024-11-21 20:25
中超精彩瞬間:京滬大戰停電燈光秀 謝暉場邊咆哮2024-11-21 20:11
Photos show the Blue Cut fire blazing a path of destruction in California2024-11-21 22:47
英超最新積分榜:熱刺2球完勝緊追阿森納 ,紐卡絕平狼隊保持不敗 !2024-11-21 22:46
內馬爾全場數據 :造點+點射救主 ,錯失1次得分機會2024-11-21 22:11
馬內雙響 ,拜仁火力全開,客場72024-11-21 21:57
Here's what 'Game of Thrones' actors get up to between takes2024-11-21 21:46
巴薩本場數據 :控球七三開 ,射門242024-11-21 21:16
姆巴佩對摩納哥集錦:無限開火權被詬病 ,不傳球梅西內馬爾也白搭2024-11-21 21:05
萊萬全場數據:5次射門打入2球+兩中框 ,3次過人2024-11-21 20:24
Dramatic photo captures nun texting friends after Italy earthquake2024-11-21 20:15
踢球者:拜仁準備和努貝爾談續約,也可能將其出售2024-11-21 20:05