Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals

Climacteric fruits are harvested before they are ripened to avoid adverse damages during transport. The unripe fruits can undergo ripening processes associated with rind color changes on exposure to ethanol vapors. Although rind coloration is a common indicator showing fruit maturity, the attribute...

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Autores principales:	Yi-Cheng Lu, Liang-Cheng Pan, Yao-Wei Lei, Kun-Yi Andrew Lin, Hongta Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fruit maturity detection ethanol vapor photonic crystals doctor-blade-coating visual colorimetric readout Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/5d20bc4ed34c4528b53ec112e076e572
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id	oai:doaj.org-article:5d20bc4ed34c4528b53ec112e076e572
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spelling	oai:doaj.org-article:5d20bc4ed34c4528b53ec112e076e5722021-11-11T19:04:28ZClairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals10.3390/s212170461424-8220https://doaj.org/article/5d20bc4ed34c4528b53ec112e076e5722021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7046https://doaj.org/toc/1424-8220Climacteric fruits are harvested before they are ripened to avoid adverse damages during transport. The unripe fruits can undergo ripening processes associated with rind color changes on exposure to ethanol vapors. Although rind coloration is a common indicator showing fruit maturity, the attribute does not provide reliable assessment of maturity especially for melons. Herein, we report the achievement of sensitive and reversible melon maturity detection using macroporous hydrogel photonic crystals self-assembled by a roll-to-roll compatible doctor-blade-coating technology. The consumption of applied ethanol vapor during melon ripening results in less condensation of ethanol vapor in the pores (250 nm in diameter), leading to a distinct blue-shift of the optical stop band from 572 to 501 nm and an obvious visual colorimetric readout from yellow green to blue. Moreover, the dependence of the color change on Brix value within the melon has also been evaluated in the study.Yi-Cheng LuLiang-Cheng PanYao-Wei LeiKun-Yi Andrew LinHongta YangMDPI AGarticlefruit maturity detectionethanol vaporphotonic crystalsdoctor-blade-coatingvisual colorimetric readoutChemical technologyTP1-1185ENSensors, Vol 21, Iss 7046, p 7046 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fruit maturity detection ethanol vapor photonic crystals doctor-blade-coating visual colorimetric readout Chemical technology TP1-1185
spellingShingle	fruit maturity detection ethanol vapor photonic crystals doctor-blade-coating visual colorimetric readout Chemical technology TP1-1185 Yi-Cheng Lu Liang-Cheng Pan Yao-Wei Lei Kun-Yi Andrew Lin Hongta Yang Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
description	Climacteric fruits are harvested before they are ripened to avoid adverse damages during transport. The unripe fruits can undergo ripening processes associated with rind color changes on exposure to ethanol vapors. Although rind coloration is a common indicator showing fruit maturity, the attribute does not provide reliable assessment of maturity especially for melons. Herein, we report the achievement of sensitive and reversible melon maturity detection using macroporous hydrogel photonic crystals self-assembled by a roll-to-roll compatible doctor-blade-coating technology. The consumption of applied ethanol vapor during melon ripening results in less condensation of ethanol vapor in the pores (250 nm in diameter), leading to a distinct blue-shift of the optical stop band from 572 to 501 nm and an obvious visual colorimetric readout from yellow green to blue. Moreover, the dependence of the color change on Brix value within the melon has also been evaluated in the study.
format	article
author	Yi-Cheng Lu Liang-Cheng Pan Yao-Wei Lei Kun-Yi Andrew Lin Hongta Yang
author_facet	Yi-Cheng Lu Liang-Cheng Pan Yao-Wei Lei Kun-Yi Andrew Lin Hongta Yang
author_sort	Yi-Cheng Lu
title	Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
title_short	Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
title_full	Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
title_fullStr	Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
title_full_unstemmed	Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals
title_sort	clairvoyant melon maturity detection enabled by doctor-blade-coated photonic crystals
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5d20bc4ed34c4528b53ec112e076e572
work_keys_str_mv	AT yichenglu clairvoyantmelonmaturitydetectionenabledbydoctorbladecoatedphotoniccrystals AT liangchengpan clairvoyantmelonmaturitydetectionenabledbydoctorbladecoatedphotoniccrystals AT yaoweilei clairvoyantmelonmaturitydetectionenabledbydoctorbladecoatedphotoniccrystals AT kunyiandrewlin clairvoyantmelonmaturitydetectionenabledbydoctorbladecoatedphotoniccrystals AT hongtayang clairvoyantmelonmaturitydetectionenabledbydoctorbladecoatedphotoniccrystals
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Clairvoyant Melon Maturity Detection Enabled by Doctor-Blade-Coated Photonic Crystals

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