“Mesh-assisted” colloidal lithography and plasma etching: A route to large-area, uniform, ordered nano-pillar and nanopost fabrication on versatile substrates

Hierarchical micro and nano structured, hydrophilic, superhydrophobic and superoleophobic surfaces incorporated in microfluidics, microarrays and lab on chip microsystems

“…Shiu et al [77] proposed the use of colloidal lithography for superhydrophobic surfaces. Ellinas et al [78] proposed ''mesh-assisted'' colloidal lithography for more uniform large area applications on silicon and polymers. He also designed the shrinking and simultaneous etching of PS spheres on top of PMMA to create triple-scale, overhanging superoleophobic polymeric surfaces [79].…”

“…A plasma etching step subsequently modifies one of the materials by nanoroughening and appropriate chemical modification and allows selective protein binding on one of the two materials. This way Bayati et al [169] allowed selective protein adsorption on SiO 2 over Si, creating self-aligned'' biomolecule spots on the patterns formed, while Malainou et al recently extended this concept to nanoscale patterns using colloidal lithography [78,170]. The same authors also transferred this concept to glass, showing selective protein adsorption on rough photoresist patterns on glass.…”

Nanostructured plasma polymers

“…ACCEPTED MANUSCRIPT 28 Interesting results were recently obtained by Ellinas et al [77,78] Figure 15. In order to fabricate amphiphobic surfaces, an additional fluorocarbon plasma deposition was carried out using C 4 F 8 .…”

A facile low-temperature and low-cost process for fabricating super-hydrophobic surface on acrylic

“…For PMMA, various approaches have been used to turn its weakly hydrophobic nature into super-hydrophobic, including replicating, imprinting, and mesh-assisted via mold [2][3][4][5]; lithography and soft-lithography [6][7][8][9], plasma etching [10][11][12][13][14], and vapor deposition [15]; solutions of mixing two or more different kinds of powders [16][17][18][19][20][21][22][23][24][25][26], and different powder grain sizes [27][28][29][30]; fluoride coated surfaces [31,32]; and electrospinning and electrospraying [33]. In contrast, we have been concentrated on developing lower cost and simpler methods.…”