科学与环境
Microscopic solar panels could help shape 3D-printed biological tissue
来源: Phys.org - latest science and technology news stories · 发布于
Bioprinting uses living cells and molecular signals to produce biological tissues and even whole organs, building them layer by layer in the lab. To keep the bioink, or blend of cells and materials that power this printing, correctly aligned to grow a target tissue, researchers u
Bioprinting uses living cells and molecular signals to produce biological tissues and even whole organs, building them layer by layer in the lab. To keep the bioink, or blend of cells and materials that power this printing, correctly aligned to grow a target tissue, researchers use electricity. However, this typically requires bulky electronic interfaces and invasive wiring.
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Biological weapons: The weaponization of disease
Biological weapons are prohibited under international law. But new developments in biotech and AI are a cause for concern. DW addresses some of the most important questions about their history, risks, and control.
World | Deutsche Welle ·
Same farms, different answers: When nitrogen pollution estimates don't add up
To reduce nitrogen pollution stemming from synthetic fertilizer and livestock waste, California's Central Valley relies on five data sets to estimate surplus nitrogen. However, most parts of the United States use just one or two data sets—the U.S. Department of Agriculture's agri
Phys.org - latest science and technology news stories ·
'Planimal' cells retain nearly entire algal genome after experimental cell fusion
Most DNA in an organism is inherited from its parent or parents. This form of genetic inheritance is referred to as vertical inheritance because genes are passed down from generation to generation.
Phys.org - latest science and technology news stories ·
From stimulation to suppression: How nitrogen addition changes soil respiration over time
Soil respiration (Rs), the efflux of CO₂ from soils to the atmosphere driven by root and microbial activity, is one of the largest terrestrial carbon fluxes and a primary determinant of net carbon sequestration. The important role of nitrogen in driving terrestrial carbon sequest
Phys.org - latest science and technology news stories ·
How Chinese brewers refined their booze 5,000 years ago
More than 5,000 years ago, brewers in eastern China appear to have used red mold to make rice alcohol, then strained the drink through cloth. Microscopic residues on ancient pottery show evidence of both the fermentation method and the filtering process to separate the liquid fro
Phys.org - latest science and technology news stories ·