Iron / molybdenum doped carbon dot nano-enzyme as well as preparation method and application thereof

By employing a dual-mode sensing strategy using iron/molybdenum doped carbon nanoparticles, integrating fluorescence and colorimetric signal outputs, the complexity and inaccuracy of existing detection methods are addressed, enabling efficient and reliable detection of hydroquinone. This approach is suitable for cosmetic safety supervision and health risk monitoring.

CN122298469APending Publication Date: 2026-06-30THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202610207680.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing methods for detecting hydroquinone require complex pretreatment procedures, are cumbersome, and involve expensive instruments, making it difficult to meet the needs of rapid on-site detection and high-throughput screening. Furthermore, nanoenzyme sensing platforms with single signal output are susceptible to environmental background interference and operator subjective judgment, resulting in insufficient accuracy and reliability.

Method used

Iron/molybdenum doped carbon nanoparticles were used to construct a dual-signal output platform for the detection of hydroquinone by integrating fluorescence and colorimetric dual-mode sensing strategies to achieve self-verification and cross-calibration functions.

Benefits of technology

It significantly improved the accuracy and robustness of the detection results and was successfully applied to the quantitative analysis of hydroquinone in whitening and freckle-removing cream samples, providing a novel and reliable sensing strategy.

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Abstract

The invention belongs to the field of materials, and particularly relates to an iron / molybdenum doped carbon dot nano-enzyme as well as a preparation method and application thereof. The preparation method of the iron / molybdenum doped carbon dot nano-enzyme comprises the following steps: 1, preparing an iron / molybdenum doped carbon dot; the method comprises the following steps: S1, mixing a solid-state ferric iron source, a solid-state nitrogen source, a solid-state carbon-sulfur source and a solid-state molybdenum source, grinding, and carrying out solvent-free in-situ carbonization to obtain powder; and S2, dissolving the powder in water, carrying out ultrasonic treatment, and filtering through a filter membrane to prepare the iron / molybdenum doped carbon dot nano-enzyme.
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