(PhysOrg.com) -- Friction limits the speed and efficiency of macroscopic engines. Is this also true for nanomachines? A Dresden research team used laser tweezers to measure the friction between a single motor protein molecule ...
Biotechnology
Aug 14, 2009
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New computer models that show how microtubules age are the first to match experimental results and help explain the dynamic processes behind an essential component of every living cell, according to Rice University scientists.
Biochemistry
Nov 24, 2014
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Researchers at the Carnegie Institution for Science, with colleagues at the Nara Institute of Science and Technology, observed for the first time a fundamental process of cellular organization in living plant cells: the birth ...
Cell & Microbiology
Oct 10, 2010
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Like a microscopic bucket brigade, an artificial microtubule can rapidly transport tiny particles along magnetic stepping stones, delivering them to a precise location even when operating against a strong current.
Bio & Medicine
Jul 22, 2022
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59
The last step of the cell cycle is the brief but spectacularly dynamic and complicated mitosis phase, which leads to the duplication of one mother cell into two daughter cells. In mitosis, the chromosomes condense and the ...
Feb 8, 2009
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Scientists have uncovered key processes in the healthy development of cells which line the human gut, furthering their understanding about the development of cancer.
Cell & Microbiology
Feb 7, 2017
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558
Materials scientists, led by a team at the Department of Energy's Pacific Northwest National Laboratory, designed a tiny tube that rolls up and zips closed.
Nanomaterials
Jan 18, 2018
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40
Egg cells are the largest single cells on the planet. Their size—often several to hundreds of times the size of a typical cell—allows them to grow into entire organisms, but it also makes it difficult to transport nutrients ...
Molecular & Computational biology
Apr 18, 2024
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1423
Writing in his journal about the scientists of his era, Henry David Thoreau bemoaned their blindness to significant phenomena: "The question is not what you look at, but what you see." More than 150 years later, his words ...
Cell & Microbiology
Jul 18, 2013
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Cells in the human body are constantly dividing. With each division, the genetic information contained in the chromosomes is duplicated, and each daughter cell receives a complete copy of the genetic material. It is a sophisticated ...
Cell & Microbiology
Feb 1, 2024
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