Breath Figures

AITKEN, JOHN

doi:10.1038/090619c0

Cited by 23 publications

(13 citation statements)

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“…In the breath condensation test, 41-43 the vapor in human breath condenses into water droplets upon contacting the PDMS surface, forming bigger droplets in regions that are hydrophilic and smaller droplets in ones that are hydrophobic (Fig. 2a and yellow inset).…”

Section: Resultsmentioning

confidence: 99%

Patterning microfluidic device wettability with spatially-controlled plasma oxidation

2015

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Section: Resultsmentioning

confidence: 99%

Patterning microfluidic device wettability with spatially-controlled plasma oxidation

2015

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“…The formation of breath figures is a natural phenomenon observable anytime water vapors condensate on a cold surface. The fog formed on a glass window while breathing on it, when viewed under a microscope appears as an assembly of closely packed micrometric water droplets [61]. The most typical application of this simple phenomenon in nanotechnology consists in generating the fog on a polymeric solution by blowing some humid gas toward it, so that at the end of the process the water droplets leave their imprint in the polymer film, generating a microporous film with the characteristic honeycomb structure, known as breath figure array [62].…”

Section: Breath Figuresmentioning

confidence: 99%

Nano- and Micropatterning on Optical Fibers by Bottom-Up Approach: The Importance of Being Ordered

Pisco

Galeotti²

2021

Applied Sciences

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The realization of advanced optical fiber probes demands the integration of materials and structures on optical fibers with micro- and nanoscale definition. Although researchers often choose complex nanofabrication tools to implement their designs, the migration from proof-of-principle devices to mass production lab-on-fiber devices requires the development of sustainable and reliable technology for cost-effective production. To make it possible, continuous efforts are devoted to applying bottom-up nanofabrication based on self-assembly to decorate the optical fiber with highly ordered photonic structures. The main challenges still pertain to “order” attainment and the limited number of implementable geometries. In this review, we try to shed light on the importance of self-assembled ordered patterns for lab-on-fiber technology. After a brief presentation of the light manipulation possibilities concerned with ordered structures, and of the new prospects offered by aperiodically ordered structures, we briefly recall how the bottom-up approach can be applied to create ordered patterns on the optical fiber. Then, we present un-attempted methodologies, which can enlarge the set of achievable structures, and can potentially improve the yielding rate in finely ordered self-assembled optical fiber probes by eliminating undesired defects and increasing the order by post-processing treatments. Finally, we discuss the available tools to quantify the degree of order in the obtained photonic structures, by suggesting the use of key performance figures of merit in order to systematically evaluate to what extent the pattern is really “ordered”. We hope such a collection of articles and discussion herein could inspire new directions and hint at best practices to fully exploit the benefits inherent to self-organization phenomena leading to ordered systems.

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“…The formation of water droplets on solid surfaces was first investigated by Aitken in 1893 [17] and later, in 1911, by Rayleigh [18][19]. The notion of "breath figures" refers to the set of fog droplets that forms when water vapor contacts a cold surface (solid or liquid).…”

Section: Introductionmentioning

confidence: 99%

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

Bormashenko¹

2017

Preprint

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Abstract: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.

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Breath Figures

Cited by 23 publications

References 0 publications

Patterning microfluidic device wettability with spatially-controlled plasma oxidation

Patterning microfluidic device wettability with spatially-controlled plasma oxidation

Nano- and Micropatterning on Optical Fibers by Bottom-Up Approach: The Importance of Being Ordered

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

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