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Article Abstract
Quantitative monitoring of the concentrations of epigallocatechin gallate (EGCG) and cysteine (Cys) is of great significance for promoting human health. In this study, iron/aluminum bimetallic MOF material MIL-53 (Fe, Al) was rapidly prepared under room temperature using a co-precipitation method, followed by investigating the peroxidase-like (POD-like) activity of MIL-53(Fe, Al) using 3,3',5,5'-tetramethylbenzidine (TMB) as a chromogenic substrate. The results showed that the Michaelis -Menten constants of TMB and HO as substrates were 0.167 mM and 0.108 mM, respectively. A colorimetric sensing platform for detecting EGCG and Cys was developed and successfully applied for analysis and quantitative detection using a smartphone. The linear detection range for EGCG was 15∼80 μM (R=0.994) and for Cys was 7∼95 μM (R=0.998). The limits of detection (LOD) were 0.719 μM and 0.363 μM for EGCG and Cys, respectively. This work provides a new and cost-effective approach for the real-time analysis of catechins and amino acids.
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| http://dx.doi.org/10.1016/j.foodchem.2024.141026 | DOI Listing |
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Article Synopsis
- Diquat (DQ) poisoning primarily targets the kidneys and leads to multi-organ damage, mainly through increased oxidative stress and inflammation.
- The study developed red blood cell membrane-camouflaged nanoparticles to deliver Epigallocatechin gallate (EGCG), a compound known for its antioxidant and anti-inflammatory properties, to treat kidney injury caused by DQ.
- Results showed that the EGCG-RBCm/NPs treatment effectively reduced reactive oxygen species (ROS), apoptosis, and kidney damage markers, indicating its potential as a protective therapy against DQ-induced renal toxicity.