The researchers from MIT have developed a new way to produce nanoscale 3-D objects of distinct shapes. The method can also form objects patterned using materials like DNA, metals, and quantum dots. For obtaining a 3D pattern using any kind of material and a nanoscale precision can now be possible is what Edward Boyden from MIT has to say. The current technique will help create any structured or shaped patterned polymer scaffold using a laser. The addition of various useful materials scaffolds can help objects shrink and generate structures one-thousandth the size of the original.
The minuscule structures formed could have many applications in the optics, medicinal, and robotics field. The technique uses the devices already used in the scientific labs which make it possible for anyone to try it. The nanostructure creating techniques are very rare and the etching patterns used on the surface can help create 2-D nanostructures but not 3-D structures and thus, the addition of layers and specialized 3-D printing nanoscale objects (polymers and plastics) are some of the slow and challenging processes. Thus, this laboratory technique known as the expansion microscopy, which had been used for the high-resolution imaging of brain tissue, enables the 3-D imaging of cells and tissues with ordinary hardware. The two-photon microscopy helps penetrate the structures using fluorescein molecules to specific locations within the gel which can be replaced with a quantum dot, DNA, and others as well.
The material exposure to light followed by attaching other materials helps form structures like unconnected structures, gradients, and multimaterial patterns. The shrinking using acid of the materials is also an option. Without distorting the materials using the right system and product can help form smaller nanomaterials. Its applications in the lenses development are being explored along with a chance in robotics or electronics. University of California – Santa Cruz scientists have recorded the performance outcomes of a supercapacitor electrode which is fabricated employing a printable graphene aerogel in order to form a porous 3D scaffold filled with pseudocapacitive material. This electrode has achieved the highest areal capacitance that has ever been recorded.