Tag Archives: Biophysics

Express Delivery of Proton Therapy

Posted on July 27, 2023 by rberkowitz

A new scheme could increase the efficiency of a high-dose cancer radiation therapy and mitigate patient discomfort by reducing particle loss in proton beams. Continue reading →

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A Broader Stance Can Stop a Sandy Slide

Posted on July 25, 2023 by rberkowitz

Experiments show that an optimal distance between points of contact helps insects and other multilegged creatures avoid slipping down a steep granular slope. Continue reading →

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Airborne Spiders Drift on Multiple Silk Threads

Posted on March 4, 2022 by rberkowitz

Simulations reveal new details of the way spiders can fly by exploiting the electric field present in the atmosphere. Continue reading →

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Ultrasound Imaging of Brain with Machine Learning

Posted on December 24, 2021 by rberkowitz

A proposed machine-learning technique can convert ultrasound signals into a skull profile, which could lead to noninvasive imaging for medical treatments in the human brain. Read more in APS Physics…

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Shape-Shifting Proteins Follow Diffusion Rules

Posted on March 23, 2021 by rberkowitz

How quickly a protein diffuses in a liquid depends directly on its radius, which changes as the protein’s conformation fluctuates. Continue reading →

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Evolutionary insights into shape-shifting proteins

Posted on March 2, 2021 by rberkowitz

Over millions of years a protein that now folds into two stable structures likely favored first one configuration, then the other, before settling on both. Continue reading →

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Evolutionary insights into shape-shifting protein

Posted on January 27, 2021 by rberkowitz

A protein that has two stable structures likely evolved from an ancestor that had only one. Continue reading →

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A Vortex in an Egg Cell

Posted on January 16, 2021 by rberkowitz

During a fruit-fly egg cell’s early development, its internal fluid begins to swirl in a vortex—a transition caused by the coordinated behavior of elastic filaments in the cell. Continue reading →

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Active Particles Map to Passive Random Walks

Posted on November 13, 2020 by rberkowitz

Researchers make systems of self-propelled particles produce the same large-scale dynamics as passive-particle systems. Continue reading →

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