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Amine-responsive cellulose-based ratiometric fluorescent materials for real-time and visual detection of shrimp and crab freshness.
- Source :
-
Nature communications [Nat Commun] 2019 Feb 15; Vol. 10 (1), pp. 795. Date of Electronic Publication: 2019 Feb 15. - Publication Year :
- 2019
-
Abstract
- Herein, we design and prepare cellulose-based ratiometric fluorescent materials with superior amine-response, which offers the real-time and visual detection of seafood freshness. Through utilizing the reactive hydroxyl groups along cellulose chains, we covalently immobilize the fluorescein isothiocyanate (FITC) as indicator and protoporphyrin IX (PpIX) as internal reference onto cellulose acetate (CA), respectively. Subsequently, a series of dual-emission solid fluorescent materials are achieved by simply blending green emitting CA-FITC with red-emitting CA-PpIX with varying ratios. They exhibit a sensitive, color-responsive, rapid and linear response to ammonia in a wide range of 5.0 ppm to 2.5 × 10 <superscript>4</superscript> ppm. Benefiting from the excellent solubility and processibility of cellulose derivatives, the as-prepared materials are readily processed into different material forms, including printing ink, coating, flexible film, and nanofibrous membrane. The electrospun nanofibrous membrane is successfully employed as a low-cost, high-contrasting, quick-responsive fluorescent trademark for visual monitoring the freshness of shrimp and crab.
- Subjects :
- Amines chemistry
Animals
Cellulose chemistry
Color
Fluorescein chemistry
Fluorescein metabolism
Fluorescence
Food Analysis methods
Food Quality
Isothiocyanates chemistry
Protoporphyrins chemistry
Protoporphyrins metabolism
Reproducibility of Results
Time Factors
Amines metabolism
Brachyura
Cellulose metabolism
Isothiocyanates metabolism
Penaeidae
Seafood analysis
Subjects
Details
- Language :
- English
- ISSN :
- 2041-1723
- Volume :
- 10
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nature communications
- Publication Type :
- Academic Journal
- Accession number :
- 30770837
- Full Text :
- https://doi.org/10.1038/s41467-019-08675-3