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Nanotechnology
Stability solutions bring unique carbon forms that are close to practical applications
This image shows how special molecules disintegrate when heated in small carbon tubes to form a completely straight chain of carbon atoms known as carbines. Credits: Elizabeth Floresgomez Murray/Jennifer M. McCann/Pennsylvania The one-dimensional chain of carbon atoms, the Carbine is so thin that it is very powerful and an interesting possibility for use in next-generation electronics, but its extreme instability…
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Physics
Physicists reveal how geometric frustration forms the symbolic flowers of roses
Morphing of the morphology and shape of rose petals. Credit: Science (2025). doi: 10.1126/science.adt0672. https://www.science.org/doi/10.1126/science.adt0672 Four physicists from the University of Jerusalem, Hebrew University in Israel, unraveled the mechanical processes behind rose growth and bloomed in a unique shape. In their research published in Journal Science, Yafeichan, Omricohen, Michael Moshe and Elansharon adopted a multifaceted approach to learn the secrets…
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Chemistry
A common catalyst works by cycling between two different forms, overturning long-standing assumptions
The mechanical model of vinyl acetate synthesis highlights the complementary roles of metallic PD(0) and soluble PD(II). The efficient electrocatalyst of oxygen reduction reactions with metal PD provides the high potential required for PD(II) formation in acetic-acetic-acetic-acid-acetic acid medium. Pd(II) eliminates the selective acetoxylation of ethylene to form Pd(0) with vinyl acetate. This redeposits on heterogeneous catalyst surfaces. Credit: Science…
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Nanotechnology
Double with Metasurface: Double layer devices can control many forms of polarization
Scanning electron microscope images of titanium dioxide metatras. Credit: Capasso Group / Harvard Seas Almost a decade ago, Harvard engineers introduced Lulatai’s thin flat device, the world’s first visible spectral metasurface, patterned with nanoscale structures that allow precise control of light behavior. Today, a powerful alternative to traditional bulky optical components, Metasurfaces enables compact, lightweight, multifunctional applications ranging from imaging…
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Space & Cosmos
Chang’e-6 sample suggests that 42.5 billion years old impact forms the lunar Antarctic-aitken basin
Schematic diagram showing Chang’e-6 rorites document 4.25 Ga Lunar South-Aitken Impact events. Credit: Su Bin Scientists have long sought to determine the age of the Antarctic-Polar (SPA) basin of the lunar, the largest and oldest known impact crater on the lunar surface. Recently, a research team led by Professor Chen Yi of the Institute for Geology and Geology at the…
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Environment
How countries define climate action in the Paris Agreement pledge, and why standard forms help assess outcomes
Credit: Unsplash/CC0 Public Domain As the world is working on how it tackles climate change, countries that signed the Paris Agreement outline their commitment to reducing emissions in documents called Nationally Determined Contributions (NDCs). These are the official climate action plans that countries submit to the United Nations Framework Convention on Climate Change (UNFCCC) every five years, detailing reduction targets…
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Biology
How chlamydia forms protective bubbles to survive within human cells
Chlamydiatrachomatis inclusions (brown) in McCoy cell cultures. Credit: Public Domain Bacterium chlamydia trachomatis is the main cause of sexually transmitted diseases. Bacteria have many tricks on their sleeves that help them survive within the cell. One strategy used by chlamydia is to form a protective “bubbles” called inclusion. This is the fusion of membranes to create large pockets of large…
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Chemistry
Organic materials can convert toxic heavy metals into harmless forms
Graphical abstract. Credit: Chemical area (2024). Doi: 10.1016/J.chemosphere.2024.143880 A researcher at Wateralu University has discovered that a special form of charcoal absorbs toxic chrome and is very effective to convert it into a more secure form. Chromium is a heavy metal that exists in two formats. One form, chrome (III), is a safe trace nutrient needed for our body. Another…
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Chemistry
Scientists provide new insights into how air pollution forms at the molecular level
The combination of spectroscopy and atomic simulations improves our understanding of the specific molecular-level processes that govern the formation of air pollution. Credit: Fuji Heavy Industries, NASA Goddard Space Flight Center A team of researchers has made a discovery in understanding how air pollution is formed at the molecular level. Their research, published in the journal Nature Communications, sheds light…
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