Electrochemical fabrication of stalactite-like copper micropillar arrays via surface rebuilding for ultrasensitive nonenzymatic sensing of glucose

2015 ◽  
Vol 151 ◽  
pp. 340-346 ◽  
Author(s):  
Man-man Guo ◽  
Yue Xia ◽  
Wei Huang ◽  
Zelin Li
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yangxi Fu ◽  
Marcos Soldera ◽  
Wei Wang ◽  
Stephan Milles ◽  
Kangfa Deng ◽  
...  

AbstractIn this study, two-step approaches to fabricate periodic microstructures on polyethylene terephthalate (PET) and poly(methyl methacrylate) (PMMA) substrates are presented to control the wettability of polymeric surfaces. Micropillar arrays with periods between 1.6 and 4.6 µm are patterned by plate-to-plate hot embossing using chromium stamps structured by four-beam Direct Laser Interference Patterning (DLIP). By varying the laser parameters, the shape, spatial period, and structure height of the laser-induced topography on Cr stamps are controlled. After that, the wettability properties, namely the static, advancing/receding contact angles (CAs), and contact angle hysteresis were characterized on the patterned PET and PMMA surfaces. The results indicate that the micropillar arrays induced a hydrophobic state in both polymers with CAs up to 140° in the case of PET, without modifying the surface chemistry. However, the structured surfaces show high adhesion to water, as the droplets stick to the surfaces and do not roll down even upon turning the substrates upside down. To investigate the wetting state on the structured polymers, theoretical CAs predicted by Wenzel and Cassie-Baxter models for selected structured samples with different topographical characteristics are also calculated and compared with the experimental data.


1987 ◽  
Vol 134 (5) ◽  
pp. 1191-1193 ◽  
Author(s):  
Kingo Itaya ◽  
Takayuki Abe ◽  
Isamu Uchida

2011 ◽  
Vol 83 (24) ◽  
pp. 9709-9714 ◽  
Author(s):  
Marion Janin ◽  
Jalal Ghilane ◽  
Hyacinthe Randriamahazaka ◽  
Jean-Christophe Lacroix

Langmuir ◽  
2014 ◽  
Vol 30 (39) ◽  
pp. 11591-11598 ◽  
Author(s):  
Giulia Fioravanti ◽  
Francesca Lugli ◽  
Denis Gentili ◽  
Vittoria Mucciante ◽  
Francesca Leonardi ◽  
...  

2015 ◽  
Vol 163 (3) ◽  
pp. A373-A379 ◽  
Author(s):  
Sandra Nöhren ◽  
Enrique Quiroga-González ◽  
Jürgen Carstensen ◽  
Helmut Föll

2021 ◽  
Vol 13 (7) ◽  
pp. 8488-8496
Author(s):  
Fei He ◽  
Nannan Xia ◽  
Yan Zheng ◽  
Yixin Zhang ◽  
Huailin Fan ◽  
...  

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