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IMAGE: In APL Bioengineering, researchers provide perspective on the Freefrom Reversible Embedding of Suspended Hydrogels 3D bioprinting approach, which solves the issue of gravity and distortion by printing within a yield-stress. view more
Credit: Adam Feinberg and Andrew Hudson, Carnegie Mellon University
WASHINGTON, February 16, 2021 Research into 3D bioprinting has grown rapidly in recent years as scientists seek to re-create the structure and function of complex biological systems from human tissues to entire organs.
The most popular 3D printing approach uses a solution of biological material or bioink that is loaded into a syringe pump extruder and deposited in a layer-by-layer fashion to build the 3D object. Gravity, however, can distort the soft and liquid bioinks used in this method.
A new study examines feathers across 249 species of Himalayan songbirds, finding that birds at higher elevations have more of fluffy down than lower elevation birds. Finding such a clear pattern across many species underscores how important feathers are to birds ability to adapt to their environments. Furthermore, finding that birds from colder environments tend to have more down may one day help predict which birds are vulnerable to climate change simply by studying feathers.
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VIDEO: An embryonic epithelial cell recognises and ingests a defective cell inside a live zebrafish embryo view more
Credit: Esteban Hoijman
Researchers at the Centre for Genomic Regulation (CRG) reveal that newly formed embryos clear dying cells to maximise their chances of survival. It is the earliest display of an innate immune response found in vertebrate animals to date.
The findings, which are published today in the journal
Nature, may aid future efforts to understand why some embryos fail to form in the earliest stages of development, and lead to new clinical efforts in treating infertility or early miscarriages.
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IMAGE: Researchers at The University of Tokyo discover a new law about how the complex network of phase-separated structures grows with time, which may lead to more efficient batteries and industrial. view more
Credit: Institute of Industrial Science, the University of Tokyo
Tokyo, Japan - Researchers from Institute of Industrial Science at The University of Tokyo investigated the mechanism of phase separation into the two phases with very different particle mobilities using computer simulations. They found that slow dynamics of complex connected networks control the rate of demixing, which can assist in the design of new functional porous materials, like lithium-ion batteries.
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IMAGE: Rice University scientists built a new tool to engineer and understand how human genes are turned on. The team created a synthetic two-part protein based on dCas9 and a modified. view more
Credit: Hilton Lab/Rice University
HOUSTON - (Feb. 9, 2021) - Finding a needle in a haystack is hard enough. But try finding a specific molecule on the needle.
Rice University researchers have achieved something of the sort with a new genome editing tool that targets the supporting players in a cell s nucleus that package DNA and aid gene expression. Their work opens the door to new therapies for cancer and other diseases.