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See live cells with 7 times greater sensitivity using new microscopy technique


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IMAGE: Researchers at the University of Tokyo have found a way to enhance the sensitivity of existing quantitative phase imaging so that all structures inside living cells can be seen simultaneously,.
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Credit: s-graphics.co.jp, CC BY-NC-ND
Experts in optical physics have developed a new way to see inside living cells in greater detail using existing microscopy technology and without needing to add stains or fluorescent dyes.
Since individual cells are almost translucent, microscope cameras must detect extremely subtle differences in the light passing through parts of the cell. Those differences are known as the phase of the light. Camera image sensors are limited by what amount of light phase difference they can detect, referred to as dynamic range. ....

Bunkyo Ku , Kanako Takeda , Takuro Ideguchi , Research Article , School Of Science , Institute For Photon Science , Ideguchi Group , University Of Tokyo Institute For Photon Science , University Of Tokyo , University Of Tokyo Tel , University Of Tokyo Is Japan , Associate Professor Takuro Ideguchi , Tokyo Institute , Photon Science , Professor Takuro Ideguchi , Tokyo Tel , Chemistry Physics Materials Sciences , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , புங்கயோ கு , கனகோ டாகேடா , ஆராய்ச்சி கட்டுரை , பள்ளி ஆஃப் அறிவியல் , நிறுவனம் க்கு ஃபோட்டான் அறிவியல் , பல்கலைக்கழகம் ஆஃப் டோக்கியோ நிறுவனம் க்கு ஃபோட்டான் அறிவியல் , பல்கலைக்கழகம் ஆஃப் டோக்கியோ ,

The farthest galaxy in the universe


The farthest galaxy in the universe
A team of astronomers used the Keck I telescope to measure the distance to an ancient galaxy. They deduced the target galaxy GN-z11 is not only the oldest galaxy but also the most distant. It s so distant it defines the very boundary of the observable universe itself. The team hopes this study can shed light on a period of cosmological history when the universe was only a few hundred million years old.
We ve all asked ourselves the big questions at times: How big is the universe? or How and when did galaxies form? Astronomers take these questions very seriously, and use fantastic tools that push the boundaries of technology to try and answer them. Professor Nobunari Kashikawa from the Department of Astronomy at the University of Tokyo is driven by his curiosity about galaxies. In particular, he sought the most distant one we can observe in order to find out how and when it came to be. ....

Bunkyo Ku , United States , Linhua Jiang , Xiaohui Fan , Rohan Mehra , Nobunari Kashikawa , Shu Wang , Okei Ito , Eiichi Egami , Daniel Schaerer , Yongming Liang , Gregory Walth , Zheng Cai , National Science Foundation Of China , School Of Science , Division For Strategic Public Relations , Chinese Academy Of Sciences , Department Of Astronomy , University Of Tokyo , America Center , Chile Joint Research Fund , University Of Tokyo Is Japan , National Key Rd Program Of China , Hubble Space Telescope , Science Foundation , National Key Rd Program ,