Honeycomb structures obtained with breath figures self-assembly allow water/oil separation

2012 ◽  
Vol 415 ◽  
pp. 394-398 ◽  
Author(s):  
Edward Bormashenko ◽  
Sagi Balter ◽  
Yelena Bormashenko ◽  
Doron Aurbach
Keyword(s):  
Self Assembly ◽  
Oil Separation ◽  
Breath Figures ◽  
Honeycomb Structures

scholarly journals Directed self-assembly of large scaffold-free multi-cellular honeycomb structures

2011 ◽  
Vol 3 (3) ◽  
pp. 034110 ◽  
Author(s):  
Nalin Tejavibulya ◽  
Jacquelyn Youssef ◽  
Brian Bao ◽  
Toni-Marie Ferruccio ◽  
Jeffrey R Morgan
Keyword(s):  
Self Assembly ◽  
Honeycomb Structures ◽  
Large Scaffold

scholarly journals Breath-Figures Self-Assembly, the Versatile Method of Manufacturing Membranes and Porous Structures: Physical, Chemical and Technological Aspects

2017 ◽  
Author(s):  
Edward Bormashenko
Keyword(s):  
Self Assembly ◽  
Interfacial Phenomena ◽  
Physical Parameters ◽  
Porous Structures ◽  
Temporal Scales ◽  
Breath Figures ◽  
Spatial And Temporal Scales ◽  
Multi Scale ◽  
Physical Chemical ◽  
The Impact

The review is devoted to the physical, chemical and technological aspects of the breath-figures self-assembly process. Main stages of the process and the impact of the polymer architecture and physical parameters of the breath-figures self-assembly on the eventual pattern are covered. The review is focused on the hierarchy of spatial and temporal scales inherent for the breath-figures self-assembly. Multi-scale patterns arising from the process are addressed. The characteristic spatial lateral scales of patterns vary from nanometers to dozens of micrometers. The temporal scales of the process span from micro-seconds to seconds. The qualitative analysis performed in the paper demonstrates that the process is mainly governed by the interfacial phenomena, whereas the impact of inertia and gravity is negligible. Characterization and applications of polymer films manufactured with breath-figures self-assembly are discussed.

scholarly journals Formation of Hierarchical Porous Films with Breath-Figures Self-Assembly Performed on Oil-Lubricated Substrates

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3051 ◽  
Author(s):  
Edward Bormashenko ◽  
Yelena Bormashenko ◽  
Mark Frenkel
Keyword(s):  
Self Assembly ◽  
Large Scale ◽  
Silicone Oil ◽  
Contact Angles ◽  
Porous Films ◽  
Voronoi Tessellations ◽  
Breath Figures ◽  
Glass Substrates ◽  
Industrial Grade ◽  
Hierarchical Porous

Hierarchical honeycomb patterns were manufactured with breath-figures self-assembly by drop-casting on the silicone oil-lubricated glass substrates. Silicone oil promoted spreading of the polymer solution. The process was carried out with industrial grade polystyrene and polystyrene with molecular mass M w = 35 , 000 g m o l . Both polymers gave rise to patterns, built of micro and nano-scaled pores. The typical diameter of the nanopores was established as 125 nm. The mechanism of the formation of hierarchical patterns was suggested. Ordering of the pores was quantified with the Voronoi tessellations and calculation of the Voronoi entropy. The Voronoi entropy for the large scale pattern was S v o r = 0.6 − 0.9 , evidencing the ordering of pores. Measurement of the apparent contact angles evidenced the Cassie-Baxter wetting regime of the porous films.

Binary breath figures for straightforward and controllable self-assembly of microspherical caps

2016 ◽  
Vol 18 (19) ◽  
pp. 13629-13637 ◽  
Author(s):  
Jianliang Gong ◽  
Bingang Xu ◽  
Xiaoming Tao ◽  
Lei Li
Keyword(s):  
Self Assembly ◽  
Breath Figures ◽  
Breath Figure

A binary breath figure approach of using water and methanol has been developed for controllable self-assembly of microspherical caps.

scholarly journals Self-assembly of electrospun nanofibers into gradient honeycomb structures

2019 ◽  
Vol 168 ◽  
pp. 107614 ◽  
Author(s):  
Tianyu Yao ◽  
Honglin Chen ◽  
Pinak Samal ◽  
Stefan Giselbrecht ◽  
Matthew B. Baker ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrospun Nanofibers ◽  
Honeycomb Structures
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