Chemistry

INTERVIEW

Glaucius Oliva: Complex structures

Self-declared molecule tamer, physicist marries scientific research with administrative management

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Meteorology

From the earth to the sky

Researchers to use German aircraft to investigate how nanoparticles produce storms in the Amazon

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Biochemistry

Green, yellow, or red

Bioluminescence research sheds new light on the mechanisms behind firefly colors

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Nobel Prize 2018 | Chemistry

Directed protein evolution

The Nobel Prize in Chemistry was shared by three researchers who controlled genetic changes and selective processes in a laboratory

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Environment

Mangroves store more carbon than the rainforest

In the Amazon, every hectare of mangrove contains twice as much carbon as the same area of inland forest

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ENVIRONMENT

Contamination beyond the mines

Areas of the Amazon flooded by dams may lead to an increase of the mercury levels in fish consumed by local residents

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Biology

The chemical language of insects

Within colonies, bees and ants recognize each other and organize themselves through compounds that cover their bodies

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Video

Analyses show how Portinari produced his work

The findings can help confirm authorship of a painting found in what used to be his home and now is the Portinari House Museum

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COVER

Options on the table

Agriculture 4.0 can help to reduce pesticide use on farms in Brazil

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OCEANOGRAPHY

Sources of methane under the sea

Two thousand craters releasing greenhouse gas found off the Brazilian coast

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COVER

Pesticides in the balance

Debate stirs over proposed regulations on pesticides—the mainstay of large-scale farming but a hazard to the environment and the health of rural communities

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ASTROPHYSICS

A meteorite in Serra Pelada

Fragments of one of the largest asteroids in the solar system recovered by researchers in Amazonia

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Chemistry

Bacteria hungry for cleaning products

In the laboratory, the bacteria grew and multiplied using ethyl alcohol as its main energy source

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Chemistry

The effects of crotamine on metabolism

A protein extracted from rattlesnake venom, presented three unexpected effects in recent tests on mice

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Chemistry

The indelible pigment of Brazilwood

Raphael, Rembrandt, Pietro da Cortona, and Van Gogh all used paints containing red pigments from the bark of the brazilwood tree

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Cell Biology

Internal communication in plants

Plant cells communicate with each other by exchanging chemical compounds, similar to the role played by neurons in animal central nervous systems

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Chemistry

Molecule created in a laboratory

Researchers used laser beams to bump two atoms together, creating a molecule

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Photolab

Diamonds in the sky

Tin oxide nanoparticles congregate in a cohesive circle, taking on the appearance of a volcan

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AGRICULTURE

The smaller the better

Nanoparticles and nanocapsules may reduce the use of agrochemicals while maintaining biological efficacy

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OBITUARY

The malaria vaccine pioneer

Ruth Nussenzweig died in New York City at 89 from a pulmonary embolism

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PHYSICS

A novel filter

Intercommunicating pores in graphene oxide membranes help separate water from alcohol

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ENVIRONMENT

Contamination beyond the mine

Areas of the Amazon flooded by dams can raise mercury levels in fish consumed by local residents

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Astronomy

Rocky planets with water and an atmosphere that could support life

At least five of the seven Earth-like planets orbiting TRAPPIST-1 could hold as much as 250 times more water than the earth's oceans

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Biology

Seabird feces plays a major role in global nutrient cycle

An international group of researchers analyzed the impact that seabird guano has on the nutrient cycle

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Biochemistry

A possible source of replacement cartilage

New material based on aramid and polyvinyl alcohol replicate the mechanical properties of biological tissues

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careers

A new generation of Petri dishes

Biochemist Margaret Magdesian developed an alternative device for growing cells and started her own company in Canada to manufacture it

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Chemistry

Enzyme transforms plants into a source of light

Chemical Engineers at the MIT have created a watercress plant capable of emitting light for up to four hours

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CHEMICAL ENGINEERING

Water without salt

New desalination system uses activated carbon obtained from polymer conductors

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Medicine

A temporary glue to treat eye injuries

A temporary glue to treat eye injuries

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Breakthrough

Breakthrough Prize winners

The Prize announced its 2018 winners

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