Scientists at the 911爆料网 have reached a new milestone in the development of two-dimensional supramolecules 鈥� the building blocks that make areas of nanotechnology and nanomaterial advancement possible.
Since the 2004 discovery of graphene, the world鈥檚 thinnest (one atom thick) and strongest (200 times stronger than steel) material, researchers have been working to further develop similar nanomaterials for industrial, pharmaceutical and other commercial uses. Thanks to its conductive properties and strength, graphene can be used in microelectronics to fortify mechanical materials and has recently enabled precise 3D imaging of nanoparticles.
While work to develop new supramolecules capable of further applications has seen some success, those molecular formations are either small 鈥� less than 10 nanometers in size 鈥� or arbitrarily assemble, limiting their potential use. But now, outlines a profound leap forward in supramolecular progress.
鈥淥ur research team has been able to overcome one of the major supramolecular obstacles, developing a well-defined supramolecular structure that pushes the 20-nanometer scale,鈥� said and the . 鈥淚t鈥檚 essentially a world record for this area of chemistry.鈥�
Li, along with his USF research team, collaborated with Saw Wai Hia鈥檚 team at the Argonne National Laboratory and Ohio University, as well as several other U.S. and international research institutes on this effort.
Supramolecules are large molecular structures made up of individual molecules. Unlike traditional chemistry, which focuses on covalent bonds between atoms, supramolecular chemistry studies the noncovalent interactions between molecules themselves. Many times, these interactions lead to molecular self-assembly, naturally forming complex structures capable of performing a variety of functions.
In this , the team was able to build a 20-nm-wide metallo-supramolecular hexagonal grid by combining intra- and intermolecular self-assembly processes. Li says the success of this work will advance further understanding of the design principles governing these molecular formations and could one day lead to the development of new materials with yet-to-be-discovered functions and properties.