Flexible material for pulse sensors. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Flexible material for pulse sensors

18.03.2017

A new material created by Swiss researchers turns heart rate (HR) sensors into something like embroidery used to decorate clothing. Flexible sensors are discreet when worn and do not cause discomfort, and garments with them can be washed as usual.

In fact, the sensor fibers consist of two polymeric materials with different properties. One serves as a light guide, and the other as a flexible protective coating. The fiber is formed from the melt. This technology is characterized by high productivity in mass production.

For measurement, light is supplied through one fiber, and the reflected light is read through the other. By analyzing the reflection, it is possible to determine the heart rate with the same accuracy as using a classic medical sensor in the form of a clip on the finger.

So far, measurements are limited to heart rate, but the project program provides for the creation of sensors to determine the level of oxygen saturation and pressure in tissues.

<< Back: The size and shape of the human nose determined by the climate 18.03.2017

>> Forward: Connecting chips with an inkjet printer and silver ink 17.03.2017

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

DNA from the air 12.09.2021

Forensic scientists actively use DNA analysis: if traces of someone's DNA remain on some surface, it means that a person touched this surface - for example, he could lean on a table, or run his hand along the wall. Or he could not lean and not hold: Flinders University employees found out that it is not necessary to touch with your hand to leave a DNA trace - your DNA can fly to an object through the air.

For the experiment, special plates for collecting DNA were placed around several work tables. The dice stood at a distance of half a meter to five meters, and they stood like that from one day to one and a half months. Nobody was supposed to touch them. And it turned out that despite the fact that no one touched the dies, the DNA of the person who worked next to them settled on them.

It is easy to guess that the amount of DNA was the greater, the longer it was collected. With the distance, everything was not so obvious: most of the DNA was on those plates that stood at a distance of two meters. If there were more than four meters between the die and the desktop, then there was almost no DNA in it. It is clear that DNA will not reach a long distance. But the fact that it was less at half a meter than at two meters can perhaps be explained by the fact that a short distance of DNA simply flies: air movements produced by a person drive it away further.

DNA is a fairly stable molecule. A dead cell, when destroyed, leaves DNA in its place, which will also be partially destroyed, but still not completely - as we know, DNA that has remained in the soil since the time of the Neanderthals is now being successfully read. We are constantly shedding a certain amount of DNA from dead skin cells, exhaling it along with water vapor from the lungs, etc., so it is not surprising that even without touching we are able to leave some kind of DNA trace. And criminologists probably need to take this into account: on the one hand, such DNA can help understand the testimony and facilitate the search for a criminal.

On the other hand, it can also become garbage, which does not allow you to see the true picture of what happened. And this is not the first study that questions the validity of DNA as a witness: we already wrote once that due to the strength and stability of DNA, traces of the DNA of a person who never touched it can remain on a crime weapon.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews