chemistry

A new material that cannot be wet

Taking the carnivorous plant Nepenthes as a model, scientists at Harvard University have developed a material that repels any type of liquid, including blood and oil. This bio-inspired liquid repellency technology, unveiled in the latest issue of Nature, could have application in the transport of biomedical fluids, the handling of fuels or the manufacture of antifreeze.

How do you know if a liquid seized by the police is explosive?

A team of researchers from the University of the Basque Country (UPV / EHU) has developed a method to determine the chemical composition of liquids suspected of being explosives that are confiscated by the police. Some of the analyzed samples contained substances dangerous to health, such as methanol and boric acid.

What are deodorants made of?

Deodorants are products that contain perfumes to mask body odor and a germicide, such as triclosan, to kill odor-producing bacteria by acting on perspiration residues and sebum (natural body oil).

Can it be washed with soap in sea water?

The truth is that no. Sea water contains large amounts of salt (sodium chloride), specifically more than 10 grams per liter if we take the average of all the world's oceans. The molecules of ordinary soap are made up of sodium atoms bound to fatty acids.

An electronic language to taste cava

The Sensors and Biosensors Group of the Autonomous University of Barcelona (UAB) has developed an electronic language to identify types of cava. The device makes it possible to automatically obtain a classification similar to that carried out by a sommelier and can be useful for detecting defects during the production of these wines.

Turn your mobile into a chemistry lab

Scientists from the University of Granada have created a computer application that, installed on the mobile phone, allows analyzing the concentration of chemical substances by taking a simple photograph of a sensor test strip that they have also designed. The study is published in the latest issue of the journal 'Sensors and Actuators B (Chemical)'.

Oxygenated water was found in space

For the first time, hydrogen peroxide molecules, better known as hydrogen peroxide, have been found in interstellar space. The discovery, made with the APEX telescope in Chile, offers clues about the chemical bond between two molecules essential for life: water and oxygen.

Why are some people more sensitive to the smell of sweat than others?

Doron Lancet and his colleagues at the Weizmann Institute (Israel) conducted a study in which they analyzed the ability of different subjects to detect odors such as the scent of eucalyptus, spearmint, banana or sweat. In this way, they identified a gene, OR11H7P, associated with the perception of the smell of sweat.

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