A dissertation study at the University of Jyväskylä (Finland) developed two-dimensional fishnet-like structures from DNA origami for silicon surfaces and investigated how different conditions affect their formation. The results provide new possibilities for DNA-assisted lithography and thus for the fabrication of new types of materials, for example, for optics.
In his doctoral thesis research, Doctoral Researcher Johannes Parikka from the University of Jyväskylä fabricated fishnet-type two-dimensional (2D) DNA origami lattices on silicon.
"DNA origami are nanoscale structures composed of single-stranded DNA. They can interact with each other, forming larger lattice structures," says Parikka.
Earlier, similar lattices have been made only on mica, which, as a fragile mineral, is not compatible with any subsequent microfabrication methods, such as etching. DNA origami lattices on silicon open the possibility to utilize DNA-assisted lithography, which further enables the fabrication of a new type of material.
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