“Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability
Abstract The temperature response window is a very critical parameter for evaluating temperature sensing performance of thermofluorochromic materials, and its regulation has long been a key focus in this field. Especially, the indication of refrigeration temperature is of great significance as it re...
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202503779 |
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| author | Jifang Zhao Jiahui Du Tianyou Qin Sean Xiao‐An Zhang Lan Sheng |
| author_facet | Jifang Zhao Jiahui Du Tianyou Qin Sean Xiao‐An Zhang Lan Sheng |
| author_sort | Jifang Zhao |
| collection | DOAJ |
| description | Abstract The temperature response window is a very critical parameter for evaluating temperature sensing performance of thermofluorochromic materials, and its regulation has long been a key focus in this field. Especially, the indication of refrigeration temperature is of great significance as it relates to public health and food safety. However, developing fluorochromic materials capable of visually reading out refrigeration temperature remains challenges. Herein, a “confined eutectic” strategy is proposed to develop fluorochromic materials that are easy to prepare and can naked‐eye recognition of refrigeration temperature. Through supramolecular interactions between dopant and host matrix, eutectic micro‐domains are formed and their crystallization point is effectively lowered into the range of 0–10 °C. The excellent crystalline host matrix provides a “confinement” effect, and thereby enhancing the crystallinity of the eutectics, which enables precise aggregation and dispersion of surrounding fluorophores, resulting in significant color changes. The mechanism is validated through variable‐temperature fluorescence spectra, confocal laser scanning microscopy and phase diagram analysis. The obtained materials exhibit high fluorescence color contrast, and can apply to diverse dyes for multi‐mode and multi‐color readout. This work not only open up new insights for refrigeration temperature responsive fluorochromic materials, but also provides a new way for visual regulation crystallinity. |
| format | Article |
| id | doaj-art-608cf070c84343d4b69c48c84ee0f9b3 |
| institution | Matheson Library |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-608cf070c84343d4b69c48c84ee0f9b32025-07-18T08:25:53ZengWileyAdvanced Science2198-38442025-07-011226n/an/a10.1002/advs.202503779“Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color TunabilityJifang Zhao0Jiahui Du1Tianyou Qin2Sean Xiao‐An Zhang3Lan Sheng4State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 ChinaState Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 ChinaDepartment of Biochemistry and Molecular Biology College of Basic Medicine Science Jilin University Changchun 130012 ChinaState Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 ChinaState Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 ChinaAbstract The temperature response window is a very critical parameter for evaluating temperature sensing performance of thermofluorochromic materials, and its regulation has long been a key focus in this field. Especially, the indication of refrigeration temperature is of great significance as it relates to public health and food safety. However, developing fluorochromic materials capable of visually reading out refrigeration temperature remains challenges. Herein, a “confined eutectic” strategy is proposed to develop fluorochromic materials that are easy to prepare and can naked‐eye recognition of refrigeration temperature. Through supramolecular interactions between dopant and host matrix, eutectic micro‐domains are formed and their crystallization point is effectively lowered into the range of 0–10 °C. The excellent crystalline host matrix provides a “confinement” effect, and thereby enhancing the crystallinity of the eutectics, which enables precise aggregation and dispersion of surrounding fluorophores, resulting in significant color changes. The mechanism is validated through variable‐temperature fluorescence spectra, confocal laser scanning microscopy and phase diagram analysis. The obtained materials exhibit high fluorescence color contrast, and can apply to diverse dyes for multi‐mode and multi‐color readout. This work not only open up new insights for refrigeration temperature responsive fluorochromic materials, but also provides a new way for visual regulation crystallinity.https://doi.org/10.1002/advs.202503779confined eutecticnaked‐eye recognizablerefrigerated temperature responsesolid‐solid phase transitionthermofluorochromic materials |
| spellingShingle | Jifang Zhao Jiahui Du Tianyou Qin Sean Xiao‐An Zhang Lan Sheng “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability Advanced Science confined eutectic naked‐eye recognizable refrigerated temperature response solid‐solid phase transition thermofluorochromic materials |
| title | “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability |
| title_full | “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability |
| title_fullStr | “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability |
| title_full_unstemmed | “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability |
| title_short | “Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability |
| title_sort | confined eutectic strategy for visual refrigeration responsive fluorescent materials with easy preparation and multi color tunability |
| topic | confined eutectic naked‐eye recognizable refrigerated temperature response solid‐solid phase transition thermofluorochromic materials |
| url | https://doi.org/10.1002/advs.202503779 |
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