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A molecular imprinted electrochemical sensor based on boron-functionalized graphitic carbon nitride (B-g-CN) and graphene quantum dots (GQDs) was presented for selective determination of bisphenol A (BPA). In particular, by combining the selectivity and high stability properties, which are the most important advantages of molecular imprinted polymers, and the highly sensitive properties of GQDs/B-g-CN nanocomposite, a highly selective and sensitive analytical method was developed for BPA analysis. Firstly, GQDs/B-g-CN nanocomposite was characterized by using microscopic, spectroscopic, and electrochemical techniques. This novel molecular imprinted electrochemical sensor for BPA detection demonstrated a linearity of 1.0 × 10-1.0 × 10 M and a low detection limit (LOD, 3.0 × 10 M). BPA-imprinted polymer on GQDs/B-g-CN nanocomposite also showed good stability, repeatability and selectivity in food samples.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10377542 | PMC |
| http://dx.doi.org/10.3390/bios13070725 | DOI Listing |
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