Aero-ZnS architectures with dual hydrophilic-hydrophobic properties for microfluidic applications
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PLEŞCO, Irina; BRANIŞTE, Tudor; WOLFF, Niklas; GORCEAC, Leonid; DUPPEL, Viola; CINIC, Boris; MISHRA, Yogendra Kumar; SARUA, Andrei; ADELUNG, Rainer; KIENLE, Lorenz; TIGINYANU, Ion. Aero-ZnS architectures with dual hydrophilic-hydrophobic properties for microfluidic applications. In: International Journal of Oral and Maxillofacial Implants. 2020, nr. 2(35), p. 0. ISSN -.
10.1063/5.0010222
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International Journal of Oral and Maxillofacial Implants
Numărul 2(35) / 2020 / ISSN - /ISSNe 0882-2786

Aero-ZnS architectures with dual hydrophilic-hydrophobic properties for microfluidic applications


DOI: 10.1063/5.0010222
Pag. 0-0

Pleşco Irina12, Branişte Tudor1, Wolff Niklas2, Gorceac Leonid3, Duppel Viola4, Cinic Boris3, Mishra Yogendra Kumar5, Sarua Andrei6, Adelung Rainer2, Kienle Lorenz2, Tiginyanu Ion17
 
1 Technical University of Moldova,
2 Institute for Material Science, Christian-Albrechts- University of Kiel,
3 State University of Moldova,
4 Max Planck Institute for Solid State Research,
5 University of Southern Denmark, Sonderborg,
6 University of Bristol,
7 Academy of Sciences of Moldova
 
Disponibil în IBN: 7 octombrie 2020


Rezumat

Here, we report on a new aero-material, called aero-ZnS, representing self-organized architectures made of ZnS hollow micro-tetrapod structures with nanoscale thin walls. The fabrication process is based on the hydride vapor phase epitaxy of CdS on sacrificial micro-tetrapods of ZnO with simultaneous or subsequent transformation of CdS into ZnS and removal of the sacrificial ZnO crystals. The nanostructure of the obtained ZnS hollow micro-tetrapods exhibits the polytypic intergrowth of wurtzite- and sphalerite-type phases perpendicular to their close packed planes. The inner surface of the micro-tetrapod walls preserves oxygen sites, as demonstrated by imaging based on electron energy-loss filtering. The self-organized aero-ZnS architecture proves to be hydrophilic under tension and hydrophobic when compressed against water. Self-propelled liquid marbles assembled using ZnS hollow micro-tetrapod structures are demonstrated. 

Cuvinte-cheie
Cadmium Sulfide, Electron energy levels, Energy issipation, Hydrophilicity, Hydrophobicity, II-VI semiconductors, Oxide minerals, zinc oxide, Zinc sulfide