Simple one-step growth and parallel alignment of DNA nanofibers via solvent vapor-induced buildup

Abstract

This communication describes the growth and parallel patterning of 1D DNA nanofibers, exceeding several hundred micrometers in length and 40 nm in diameter, induced by solvent evaporation.

Placement of Nanospace on an Electrode for Biosensing

“…Moreover, one-or two-dimensional arrangements of nanoparticles have also evolved with respect to their pathognomonic optical characteristics, since metal nanoparticles have distinctive optical characteristics. [126][127][128] Some promising results have suggested that arrangement and nanospace may be useful in optical biosensing.…”

Facile Method for Constructing Metallic Nanoarrays on a Solid Surface

“…87,90 Furthermore, by repeating TP onto the same surface, it was also possible to realize a two-dimensional (2D) assembly of stretched DNA molecules and nanofibers. We also demonstrated the TP of 2D patterns of metallic nanoarrays onto surfaces.…”

“…87 This method is based on the processes of solvent vapor-induced buildup and controlled drying front movement, and forms parallel aligned DNA nanofibers exceeding several hundred micrometers in length and 40 nm in diameter on a poly(dimethylsiloxane) (PDMS) sheet. Thus, this process leads to a DNA nanostrand that is much longer than the contour length of λ-DNA (16.3 μm) and facilitates manipulating a single nanofiber under microscope observation, measuring its electrical and optical properties, and connecting it to electrode pads.…”

Molecularly Bridged Gold Nanoparticle Array for Sensing Applications

“…[40][41][42][43] The self-assembly technology is an effective bottom-up technique to assemble well-organized one-to threedimensional structures, wherein the interparticle connections can be controlled at the single-particle level. [44][45][46][47] From the application standpoint, metal nanoparticles are one of the most frequently studied inorganic materials because of their distinct combination of properties, which impart unique functionality to the nanotechnology-based devices. 48,49 We previously reported on the synthesis of a gold nanoparticle (AuNP) array prepared via a single-step procedure, wherein alkanethiols were self-assembled to deposit AuNPs on a plastic substrate, as shown in Fig.…”