Fabrication of nanochannels with water-dissolvable nanowires

Abstract

We report here a template method for the fabrication of nanochannels with water-dissolvable NaNH(4)Mo(3)O(10).H(2)O nanowires as the sacrificial material. By using these nanowires, which have diameters ranging from 20 to 150 nm and lengths up to a hundred microns, we have demonstrated that it is possible to obtain nanochannels with the desired shape of cross section, and desired types of channel material, such as metals and oxides. This technique shows a good potential for the development of various microfluidic and nanofluidic devices.

Dissolvable Trimolybdate Nanowires as Ag Carriers for High-Efficiency Antimicrobial Applications

“…We note that both nanowires of pure (NH 4 ) 2 Mo 3 O 10 and NaNH 4 Mo 3 O 10 ·H 2 O phases are easily dissolvable in deionized water [39], while the nanowires shown in Figures 1(c), 1(d), and 1(e) are not. However, they can be dissolved in mild acidic solutions.…”

“…• C in the whole reaction process. This was attributed to the existence of NH 4 + ions in the solution [38,39]. Synthesized under this condition, the end products were uniform and long nanowires, as shown in Figure 1(e).…”

Fabrication of polydimethylsiloxane (PDMS) nanofluidic chips with controllable channel size and spacing

“…Electron beam lithography (EBL) 30 and focused ion beam (FIB) lithography 31,32 are excellent tools for nanofabrication, however, these techniques are expensive and require professional training. Nanomaterials such as nanowires [33][34][35][36] , nanotubes 37 and nanofibers 38 are also used in nano-device fabrication. However, the problems here are the difficulty to handle the tiny samples by mechanical tools and the difficulty to finalize the alignment during device assembling.…”

Fabrication of nanochannels on polystyrene surface

“…Nanomaterials such as nanowires, nanotubes, nano-membranes, and nanofibers, with a feature size down to few nanometers, have been widely leveraged to make nanofluidic systems. [19][20][21] These nanomaterialassisted methods are cost-effective and simple; however, the alignment is the biggest challenge during the fabrication process, because the size of the nanowires is too small to be manipulated by mechanical tools.…”