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  "publishedAt": "2026-02-06T23:39:52.000Z",
  "site": "https://www.nanowerk.com",
  "textContent": "A food-safe gelatin microneedle sensor pierces sealed packaging and changes color as food spoils, offering consumers a real-time alternative to static expiry dates.",
  "title": "A color-changing microneedle sensor made from food ingredients can detect spoilage through sealed packaging"
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