The latest composite printable water sensor

New composite printable water sensor

the new 3D printing water sensor opens the door to a series of functional materials. Scientists have developed a new composite material that can be used for 3D printing and water sensors that can detect trace amounts of water. The researchers said that this work paved the way for the manufacture of new 3D printing functional materials for a series of new devices and objects. A team led by engineers at the Autonomous University of Madrid (UAM) has developed flexible and non-toxic materials, partially composed of so-called copper based coordination polymers - a compound containing water molecules bound to the central copper atom. Then, they used particle physics to understand the properties of materials to use polymers to make printing inks to develop sensors

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"when the compound is heated to 60 ℃, the color changes from blue to purple," amo Ochoa explained. "This change can be reversed by placing it in air, in water, or in a solvent containing traces of water."

researchers found that in the solvent, the printing sensor can detect 0.3% to 4% water in less than two minutes. In the air, they can detect a relative humidity of 7%

if the material is in anhydrous solvent or dried by heating - the material turns purple. The researchers said that this material also showed stability in many heating cycles, and the copper compound was evenly distributed throughout the printed sensor. In addition, they say, this material is stable in the air for at least a year and is also in the biologically relevant pH range of 5 to 7

researchers have done some work in Deutsche elektronen synchrotron (desy), a German research institution responsible for running particle accelerators for studying the structure of matter. Scientists from the Hebrew University in Jerusalem, Nanyang Technological University in Singapore and the Madrid Institute of materials science also contributed to this study

the team used to study the effect of grain size, mechanical properties and grain size on fatigue small crack growth after treatment at different solid solution temperatures. From the high-energy X-ray observation of desy research light source Petra III, it was observed that water molecules bound to copper atoms had been removed from the sample material heated to 60 ℃. AMO Ochoa said that this led to the reversible structural reorganization of the material, which was used to detect the color change of water in the sensor. The team published a paper on their work in the journal "advanced functional materials"

electronic products that can be made using printers are the next wave of manufacturing new and flexible components and equipment - faster and less material waste than in the past

in particular, sensors are very useful in many fields - from health to food quality control. The hydraulic double-sided flat push clamping fixture of Jinan experimental machine factory can easily realize the rapid clamping, centering and positioning of samples, as well as environmental monitoring and technical application. Researchers said that the demand for response sensors in these fields is growing. These sensors show rapid and simple changes in the presence of specific molecules, and water is one of the most common monitoring elements

"it is important to know how much water exists in a certain environment or material," desy scientist micha A. C. polymers is the first company in Russia to develop this material, explained AEL wharby. "For example, if there is too much water in the oil, they may not be able to lubricate the machine well, and if there is too much water in the fuel, it may not burn normally."

elizabeth Montalbano is a freelance writer who has written about technology and culture for more than 20 years. She has lived and worked professionally in Phoenix, San Francisco and New York City. In her spare time, she likes surfing, traveling, music, yoga and cooking. She currently lives in a village on the southwest coast of Portugal