A dry chemical reagent sheet for detecting a liquid sample and use thereof
By using cellulose esters and micron- and nano-sized particles to form a porous diffusion layer in dry chemical reagent tablets, the problem of poor detection versatility in existing technologies is solved, and uniform penetration and high-precision detection of different analytes are achieved.
CN122448837APending Publication Date: 2026-07-24LUCKY HEALTHCARE CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LUCKY HEALTHCARE CO LTD
- Filing Date
- 2026-06-17
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
The diffusion layer structure and composition of existing dry chemical reagent tablets are only applicable to one analyte, resulting in poor detection versatility when the analyte is changed.
Method used
Cellulose ester is used as the diffusion layer framework, combined with micron-sized particles and nanoparticles in a mass ratio of 4 to 9:1 to form a porous structure. The hydroxyl content of cellulose ester is 2 wt% to 8.7 wt% to improve the dispersibility of nanoparticles and adapt to the detection of different analytes.
Benefits of technology
This technology enables the uniform penetration and spreading of dry chemical reagent strips onto liquid samples with different physicochemical properties, improving the versatility and accuracy of the detection.
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Figure CN122448837A_ABST
Abstract
The application provides a dry chemical reagent sheet for detecting a liquid sample and an application thereof, and belongs to the field of dry chemical reagent sheets. The dry chemical reagent sheet comprises a diffusion layer and a reagent layer arranged below the diffusion layer, and the diffusion layer comprises: cellulose ester for forming a skeleton, the hydroxyl content of the cellulose ester being 2wt%-8.7wt%; and microparticles and nanoparticles with a mass ratio of 4-9:1 for filling the skeleton to form a porous structure. The dry chemical reagent sheet provided by the application can adapt to the fluid behavior of liquid samples with different physicochemical properties, realize the homogenization distribution of different to-be-detected analytes, and has universality and good detection precision.
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