Elastic 2D nanoparticle membrane can detect antibiotics in water

The material can be used in next generation wearables and biosensors


News9 (India)

3 Aug 2022


ˇ         Commercial application of 2D membranes has been limited.

ˇ         The new membrane has several applications beyond detecting antibiotics in water.

ˇ         A self-assembly approach was used to fabricate the membranes.


Researchers have developed a strong and elastic, two dimensional nanoparticle membrane that has a number of potential applications in future wearables and biosensors. The mesh can be used to detect trace amounts of antibiotics in water. Two dimensional materials consist of either a single layer or a few layers of atoms. Recently, such materials have gained considerable research interest because of their mechanical strength, flexibility, as well as their optical and electronic properties. These characteristics makes them suitable for use in optoelectronic devices, sensors and next generation computing technologies. However, because of the problem of scaling and challenges in obtaining uniform products in batches, no commercial applications exist.


Researchers have now fabricated a two dimensional monolayer membrane that incorporates metal nanoparticles, that overcomes some of these difficulties. Lead researcher Nonappa says "These membranes are mechanically robust and can be transferred on to any substrate of interest for desired applications. Our approach enables the rapid, scalable, and efficient fabrication of large-area ultrathin membranes." Each of the nanoparticles had a clearly defined molecular structure, unlike routinely used nanoparticles. A self-assembly approach was used to fabricate the macro scale membrane.


Researcher Alessandra Griffo says "The membranes show elastic behaviour, making them potentially useful, for example, in flexible transistors and memory devices in wearable electronics and displays. The experimental results on their mechanical properties are highly reproducible and reliable."


Indiscriminate use of antibiotics in animal husbandry and for humans has resulted in elevated levels of antibiotics contamination in ground and surface water, and there is an urgent requirement for a method for rapid and reliable detection...


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