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Petar Petrov on Muck Rack

Petar Petrov

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As seen in: Medium, Nature, Wiley Online Library, MDPI, ZDNet, The Christian Science Monitor, Science Magazine, BioRxiv, Wisconsin State Journal, DEV Community and
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Articles

Laser phase plate improves structure determination of small proteins by cryo-EM

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By Ke-Ting Shin, Justin Stewart, Petar Petrov, Jessie Zhang Verified, Jonathan Remis, Jeremy Axelrod, Hang Cheng, Eric Cooper, Ian Hicklin, Robert M Glaeser, Holger Müller, Shahar Sandhaus, Cooper Schnurr
| Science Magazine Verified
Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share Abstract Phase plates can in principle overcome the poor image contrast in electron cryo–microscopy (cryo-EM) and the resulting limits on the structural reconstruction of small proteins. However, previous designs have been unstable and compromised the high-resolution signal. They have thus been unable to surpass results achieved by standard cryo-EM.
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Crossed laser phase plates for transmission electron microscopy

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By Petar Petrov, Jessie Zhang Verified, Jeremy Axelrod, Pavel K. Olshin, Holger Müller
| Nature Verified
Abstract A phase plate has long been sought in transmission electron microscopy (TEM) to maximize the image contrast of weakly-scattering objects like biomolecules. The laser phase plate (LPP) has recently demonstrated that an amplified, focused laser standing wave reliably phase shifts the electron beam, achieving phase-contrast TEM. Building on the single-beam LPP, here we introduce the crossed laser phase plate (XLPP): two laser standing waves which intersect in the diffraction plane.
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Looks like I won't be publishing Android Apps

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By Petar Petrov
| DEV Community
This is more of a rant than an article. I was going to wrap my PWA app into an Android bundle to release it on Google Play the other day when I got hit by this, let's call it restriction, in the Google Play console. Apparently, I have to get 12 people from somewhere, who must have my app installed on their devices for 14 days, and open it at least once within this period, before I can even think of publishing it. Well, I can't find 12 people with Android around me.
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