Chemistry

Biochemistry

First membranes may have laid the foundations for life on Earth

Study simulates primitive cell structures and advances understanding of the origin of life

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Obituary

A strategist in Science

José Israel Vargas was an expert in nuclear energy, a chemist, a physicist, and Brazil’s longest serving minister of science and technology

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Automotive engineering

Device designed in Brazil retains some of the CO2 emitted by trucks

System captured up to 17% of gas emissions from diesel engines in real-world tests

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Energy

Recyclable solar panels

Swedish scientists create recyclable perovskite solar cell

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interview

Suzana Nunes: Female chemical engineer lives in Saudi Arabia

Brazilian scientist develops membranes that act as sophisticated filters, while also working on the permeability of science across genders and countries

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ARCHAEOLOGY

The Amazon’s ancient cornfields

Archaeological sites in Bolivia reveal traces of large-scale corn farming that once sustained a dense human population—and may have even played a role in domesticating ducks

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CHRONOBIOLOGY

Biological clock of cyanobacteria, which live for one day, predicts the arrival of winter

Result surprises scientists, leading them to rethink the mechanisms and evolutionary importance of adjusting to natural rhythms

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photolab

Roland Garros, inside out

It looks like a tennis ball, but it is actually a microstructure that could be used to produce refractory ceramics

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INTERVIEW

Liane Rossi: Brazilian scientist recognized by Swedish royalty

USP researcher who specializes in sustainable chemistry was awarded King Carl XVI Gustaf Professorship in Environmental Science

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ATMOSPHERIC CHEMISTRY

Gas in the Amazon rainforest accelerates cloud formation

Trees emit isoprene, which reacts with other molecules and increases the production of cloud condensation nuclei 100-fold

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Photolab

Crystals in tubes

Photograph showing the crystallization of calcium carbonate in tubes wins award

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Nobel Prize

2024 Nobel Prize honors researchers in the field of artificial intelligence

The physics and chemistry prizes were awarded to scientists who created computational tools

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Cryogenics

High cost and disruptions in helium supply make it difficult to carry out research at temperatures close to absolute zero

The liquefied from of the noble gas is used to cool magnetic resonance imaging machines, particle accelerators, and quantum computers

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Physics

Brazilians participate in the largest international experiment studying neutrinos

Scientists created a method of purifying liquid argon for the experiment

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Agriculture

Passion fruit against the Sun

Passion fruit species recommended for insomnia could also be used in sunscreen

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PHOTOLAB

Aerospace carbon

Fiber-reinforced carbon matrix, used in brakes for large machinery, produced in a laboratory

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Climate change

Bacteria in Amazon tree trunks are capable of absorbing methane

Study by international group indicates that the phenomenon occurs in non-flooded areas

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ECOLOGY

A bacterial coating that protects amphibians

Sensitive to climate change and pollutants, frogs and toads resist toxins with the help of skin microbiota

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CHEMISTRY

Hydrogel pellets remove water from biodiesel

Reusable material emerges as an alternative for purifying biofuel

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BIOTECHNOLOGY

Scientists develop serum for Africanized bee venom

Scientists develop serum for Africanized bee venom

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Space exploration

Mars was like Earth

Rocks collected by Curiosity rover suggest Mars may have been more like Earth in the past

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CHEMISTRY

Mushrooms and biogas from brewery waste

Brewery waste used to produce biogas and feed mushrooms

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CHEMISTRY

A single layer of gold atoms

Goldene, a new gold-based material, could be used to convert carbon dioxide, produce hydrogen, and purify water

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Public health

More arguments against vapes

Brazilian Society of Cardiology supports the ban on electronic cigarettes

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Photolab

Microscopic view

Science and art collide in microscopic images colored using nanoart

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Energy

The race for perovskite solar cells

Brazilian research groups are helping to advance research about a promising class of materials for photovoltaic applications

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Photolab

Devilish shine

Bioluminescent mushrooms found in the interior of São Paulo belong to a new genus

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Photolab

Versatile sphere

When suspended in a liquid, cultured cells form clusters known as spheroids

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Retrospect

Veterans of the Nióbio Project try to rescue it from obscurity

45 years ago, researchers and technicians began developing domestic technology for metal production in Lorena, São Paulo

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Electronic engineering

Carnaúba: an X-ray supermicroscope

The longest light beamline of Sirius in Campinas, São Paulo State, provides details on fossil histories, interaction of plants with the soil, and impurities in diamonds

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