Preparation of size controllable porous polymethylmethacrylate template and Cu micro/nanowire arrays

Abstract

Preparation of a size controllable porous polymethylmethacrylate template and Cu micro/nanowire arrays by an iterative melt co-drawing and bundling technique.

Novel Nanofluidic Cells Based on Nanowires and Nanotubes for Advanced Chemical and Bio-Sensing Applications

“…Membrane-template synthesis has the characteristics of high periodicity, chemical stability and versatility. By controlling the diameter, spacing, and direction of the pores, a uniform, dense, and nearly parallel 1D nanomaterial matrix can easily be obtained ( Figure 2 a) [ 38 , 39 , 40 ]. The solid or hollow cylinders depend on the hole wall chemistry, deposition time and deposition method.…”

“…He et al produced the membranes with desired nanopore size by oxygen plasma etching for the application of cell penetration and DNA infection ( Figure 2 d) [ 40 ]. The composite fiber melt-codrawing and bundling method was developed to prepared a well-controlled porous PMMA membrane with controlled structure size [ 39 ]. Unfortunately, the membrane-template approach relies on wet chemical reactions at low temperatures, resulting in a lack of layered crystal structures, poor morphology and porous walls.…”

Fabrication of Polymer Composite Fibers Embedding Ultra-Long Micro/Nanowires

“…The factors that influence the fibre size have been previously discussed (see Ref. [ 5 , 6 ]). The geometric sizes of the array obtained via this method can be precisely controlled by adjusting the preform core diameter, fiber outer diameter, and the number of iterative drawing steps.…”

“…Micro/nanowires have been attracting a great deal of attention for decades because they are arguably the most studied micro/nano material model to make functional devices [ 1 , 2 , 3 , 4 ]. For example, micro/nano porous array polymer template is always used to prepare the metallic micro/nanowires, which plays a significant role in the regulation of structure and size parameters of metal micro/nanowires [ 5 , 6 ]. The micro/nanowires or composite fibers embedded with micro/nanowires are attractive building blocks for fabricating functional devices, especially complex device arrays.…”

“…For these reasons mentioned above, a simple method, namely multi-step melt co-drawing techniques [ 5 , 6 , 34 ], is proposed to prepare the micro/nano porous array polymer templates and ultra-long polymer micro/nanowires. Compared with other conventional methods, this technique possesses many advantages: (1) the size parameters of micro/nano structures can be easily controlled in a large range (from millimeter-scale to nanometer-scale); (2) the obtained arrangement morphology of the micro/nano structures exhibits excellent uniformity; (3) high yield, high repeatability, easy operation; and (4) no being limited to polymer materials.…”