Two-Luminogen Hydrogel Chemosensor Detects Seafood Freshness by Changing Color
Written by AZoMMay 7 2021
A team of researchers from Germany and China has developed a novel artificial color-changing material that imitates the skin of a chameleon, through luminogens (molecules that cause crystals to glow) arranged into different core and shell layers of hydrogels rather than a single uniform matrix.
This image shows the color change of the “chameleon skin” hydrogel-based chemosensor in response to biogenic volatile amine vapors, which are a well-known indicator of fish and shrimp spoilage. Image Credit: Lu et al./Cell Reports Physical Science.
The results, recently published in the
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IMAGE: This image shows the color change of the chameleon skin hydrogel-based chemosensor in response to biogenic volatile amine vapors, which are a well known indicator of fish and shrimp spoilage.. view more
Credit: Lu et al./Cell Reports Physical Science
Scientists in China and Germany have designed an artificial color-changing material that mimics chameleon skin, with luminogens (molecules that make crystals glow) organized into different core and shell hydrogel layers instead of one uniform matrix. The findings, published May 6 in the journal
Cell Reports Physical Science, demonstrate that a two-luminogen hydrogel chemosensor developed with this design can detect seafood freshness by changing color in response to amine vapors released by microbes as fish spoils. The material may also be used to advance the development of stretchable electronics, dynamic camouflaging robots, and anticounterfeiting technologies.
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DAILY DOSE: May 5, 2021
Posted on 05/05/2021
1. U.S. Treasury Secretary Yellen says cryptocurrency regulation is a topic “that’s well worth addressing.”
2. Real estate investor Sam Zell is seeing inflation everywhere. Zell has bought gold as a hedge.
3. T.V. host Conan O’Brien disclosed he will “wind down” his late night TBS show after 11 years and move over to HBO Max.
4. Israel lender Bank Leumi is contemplating a sale of its U.S. bank arm.
5. Cascade Investment is the family office of Bill Gates. Cascade Investment transferred securities worth more than US$ 1.8 billion to Melinda French Gates, a day after they announced their divorce.