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Passive endocytosis in model protocells

https://doi.org/10.1073/pnas.2221064120

Zhang, Stephanie J.; Lowe, Lauren A.; Anees, Palapuravan; Krishnan, Yamuna; Fai, Thomas G.; Szostak, Jack W.; Wang, Anna (June 2023, Proceedings of the National Academy of Sciences)

Semipermeable membranes are a key feature of all living organisms. While specialized membrane transporters in cells can import otherwise impermeable nutrients, the earliest cells would have lacked a mechanism to import nutrients rapidly under nutrient-rich circumstances. Using both experiments and simulations, we find that a process akin to passive endocytosis can be recreated in model primitive cells. Molecules that are too impermeable to be absorbed can be taken up in a matter of seconds in an endocytic vesicle. The internalized cargo can then be slowly released over hours, into the main lumen or putative cytoplasm. This work demonstrates a way by which primitive life could have broken the symmetry of passive permeation prior to the evolution of protein transporters.
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In-line holographic microscopy with model-based analysis

https://doi.org/10.1038/s43586-022-00165-z

Martin, Caroline; Altman, Lauren E.; Rawat, Siddharth; Wang, Anna; Grier, David G.; Manoharan, Vinothan N. (December 2022, Nature Reviews Methods Primers)

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FMCW Radar Driver Head Motion Monitoring Based on Doppler Spectrogram and Range-Doppler Evolution

https://doi.org/10.1109/WISNET.2019.8711807

Chae, Rachel; Wang, Anna; Li, Changzhi (January 2019, 2019 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet))

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Attosecond coherent electron motion in Auger-Meitner decay

https://doi.org/10.1126/science.abj2096

Li, Siqi; Driver, Taran; Rosenberger, Philipp; Champenois, Elio G.; Duris, Joseph; Al-Haddad, Andre; Averbukh, Vitali; Barnard, Jonathan C.; Berrah, Nora; Bostedt, Christoph; et al (January 2022, Science)

Sub-femtosecond soft x-ray pulses induce coherent superposition of core-excited electronic states in NO probed in real time.
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