Antimicrobial spray nanocoating of supramolecular Fe(III)-tannic acid metal-organic coordination complex: applications to shoe insoles and fruits

Numerous coating strategies are available to control the surface properties and confer new properties to substrates for applications in energy, environment, biosystems, etc., but most have the intrinsic limitations in the practical setting: (1) highly specific interactions between coating materials and target surfaces are required for stable and durable coating; (2) the coating of bulk substrates, such as fruits, is time-consuming or is not achievable in the conventional solution-based coating. In this respect, material-independent and rapid coating strategies are highly demanded. We demonstrate spray-assisted nanocoating of supramolecular metal-organic complexes of tannic acid and ferric ions. The spray coating developed is material-independent and extremely rapid (< 5 sec), allowing for coating of commodity goods, such as shoe insoles and fruits, in the controlled fashion. For example, the spray-coated mandarin oranges and strawberries show significantly prolonged post-harvest shelf-life, suggesting practical potential in edible coating of perishable produce.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2017-08
Language
English
Keywords

LAYER-BY-LAYER; PHENOLIC NETWORKS; COATINGS; TISSUE

Citation

SCIENTIFIC REPORTS, v.7

ISSN
2045-2322
DOI
10.1038/s41598-017-07257-x
URI
http://hdl.handle.net/10203/225662
Appears in Collection
CH-Journal Papers(저널논문)
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