How to grow a movable mini-garden in a droplet: Growing chemical gardens in a water and aqueous ethanol solutions droplets deposited on a superhydrophobic surface

Edward Bormashenko; Yelena Bormashenko; Roman Grynyov; Roman Pogreb; A. Schechter

doi:10.1016/j.colcom.2015.11.001

How to grow a movable mini-garden in a droplet: Growing chemical gardens in a water and aqueous ethanol solutions droplets deposited on a superhydrophobic surface

Edward Bormashenko, Yelena Bormashenko, Roman Grynyov, Roman Pogreb, A. Schechter

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Growth of chemical droplets confined by a droplet placed on a superhydrophobic surface is demonstrated. FeCl₃ seed crystals were deposited on a polymer superhydrophobic surface. Droplets containing an aqueous solution of the potassium hexacyanoferrate (K₄Fe(CN)₆·3H₂O) were allowed to contact the seed crystals. Typical small-scale chemical gardens, similar to those grown in open vessels, were observed within 20μl droplets. Micrometrically scaled filaments were registered. The Laplace overpressure developed in the droplet was insufficient for suppressing the growth of chemical gardens. Addition of ethanol delayed the growth of chemical gardens.

Original language	English
Pages (from-to)	12-15
Number of pages	4
Journal	Colloids and Interface Science Communications
Volume	7
DOIs	https://doi.org/10.1016/j.colcom.2015.11.001
State	Published - 1 Jul 2015

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10.1016/j.colcom.2015.11.001

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title = "How to grow a movable mini-garden in a droplet: Growing chemical gardens in a water and aqueous ethanol solutions droplets deposited on a superhydrophobic surface",

abstract = "Growth of chemical droplets confined by a droplet placed on a superhydrophobic surface is demonstrated. FeCl3 seed crystals were deposited on a polymer superhydrophobic surface. Droplets containing an aqueous solution of the potassium hexacyanoferrate (K4Fe(CN)6·3H2O) were allowed to contact the seed crystals. Typical small-scale chemical gardens, similar to those grown in open vessels, were observed within 20μl droplets. Micrometrically scaled filaments were registered. The Laplace overpressure developed in the droplet was insufficient for suppressing the growth of chemical gardens. Addition of ethanol delayed the growth of chemical gardens.",

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How to grow a movable mini-garden in a droplet: Growing chemical gardens in a water and aqueous ethanol solutions droplets deposited on a superhydrophobic surface. / Bormashenko, Edward; Bormashenko, Yelena; Grynyov, Roman et al.
In: Colloids and Interface Science Communications, Vol. 7, 01.07.2015, p. 12-15.

Research output: Contribution to journal › Article › peer-review

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AU - Grynyov, Roman

AU - Pogreb, Roman

AU - Schechter, A.

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AB - Growth of chemical droplets confined by a droplet placed on a superhydrophobic surface is demonstrated. FeCl3 seed crystals were deposited on a polymer superhydrophobic surface. Droplets containing an aqueous solution of the potassium hexacyanoferrate (K4Fe(CN)6·3H2O) were allowed to contact the seed crystals. Typical small-scale chemical gardens, similar to those grown in open vessels, were observed within 20μl droplets. Micrometrically scaled filaments were registered. The Laplace overpressure developed in the droplet was insufficient for suppressing the growth of chemical gardens. Addition of ethanol delayed the growth of chemical gardens.

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How to grow a movable mini-garden in a droplet: Growing chemical gardens in a water and aqueous ethanol solutions droplets deposited on a superhydrophobic surface

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