Ascorbic acid (AA), also known as vitamin C, is an essential water-soluble vitamin involved in collagen biosynthesis, immune function, and protection against oxidative stress. Due to its strong antioxidant properties, AA is widely used in cosmetic formulations and nutraceutical products; however, its susceptibility to...
Electrochemical sensing of ascorbic acid (AA) and dopamine (DA) has attracted considerable attention owing to their important roles in biological systems; therefore, precise determination of these analytes is essential for biological and clinical analysis. In this work, an α-Fe2O3/CuO nanocomposite was synthesized vi...
Hydrogen peroxide (H2O2) is often illegally used in food processing, and mainstream H2O2 colorimetric detection strategies in recent years have been plagued by drawbacks including low catalytic activity of single nanozymes, unstable chromogenic signals, and insufficient adaptability to complex food matrices. To address...
The rapid and specific monitoring of toxic strontium (Sr2+) contamination is critically important yet challenging, as it typically relies on non-portable and expensive instrumentation. Herein, the crystal-phase dependence of MnO2 nanozymes was systematically investigated by in situ growth of five representative polymor...
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