Maria A. Komkova , Artem A. Eliseev , Andrei A. Poyarkov , Darya V. Vokhmyanina , Andrei A. Eliseev , Arkady A. Karyakin
{"title":"基于第一代生物传感器的试纸,具有扩展的线性范围,可以在全血中检测葡萄糖","authors":"Maria A. Komkova , Artem A. Eliseev , Andrei A. Poyarkov , Darya V. Vokhmyanina , Andrei A. Eliseev , Arkady A. Karyakin","doi":"10.1016/j.electacta.2025.147060","DOIUrl":null,"url":null,"abstract":"<div><div>We report on the approach enabling first-generation biosensor-based test-strips to respond linearly up to 40 mM glucose concentration. Glucose oxidase (GOD) has been chosen as the most selective biocatalyst. Decreasing its content in the enzyme containing membrane so that [E]<sub>0</sub> ≈ [S]<sub>0</sub>, it is possible to increase an apparent Michaelis constant prolonging linear calibration range. Prussian Blue (PB) acting as a transducer practically prevents false-positive responses caused by reductants. Novel bi-pulse power generation readout with overall measurement duration of 5.005 s provides up to 10-fold enhanced sensitivity (17 ± 3 mA·M<sup>−1</sup>·cm<sup>−2</sup>), which compensates its obvious loss caused by the decrease of the enzyme content. Coupled with an advanced readout, the resulting test-strips become suitable for whole blood analysis even upon monitoring of diabetes.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"538 ","pages":"Article 147060"},"PeriodicalIF":5.6000,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Test-strips based on the first-generation biosensors with expanded linear range enabling glucose detection in whole blood\",\"authors\":\"Maria A. Komkova , Artem A. Eliseev , Andrei A. Poyarkov , Darya V. Vokhmyanina , Andrei A. Eliseev , Arkady A. Karyakin\",\"doi\":\"10.1016/j.electacta.2025.147060\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We report on the approach enabling first-generation biosensor-based test-strips to respond linearly up to 40 mM glucose concentration. Glucose oxidase (GOD) has been chosen as the most selective biocatalyst. Decreasing its content in the enzyme containing membrane so that [E]<sub>0</sub> ≈ [S]<sub>0</sub>, it is possible to increase an apparent Michaelis constant prolonging linear calibration range. Prussian Blue (PB) acting as a transducer practically prevents false-positive responses caused by reductants. Novel bi-pulse power generation readout with overall measurement duration of 5.005 s provides up to 10-fold enhanced sensitivity (17 ± 3 mA·M<sup>−1</sup>·cm<sup>−2</sup>), which compensates its obvious loss caused by the decrease of the enzyme content. Coupled with an advanced readout, the resulting test-strips become suitable for whole blood analysis even upon monitoring of diabetes.</div></div>\",\"PeriodicalId\":305,\"journal\":{\"name\":\"Electrochimica Acta\",\"volume\":\"538 \",\"pages\":\"Article 147060\"},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2025-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrochimica Acta\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0013468625014203\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochimica Acta","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0013468625014203","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Test-strips based on the first-generation biosensors with expanded linear range enabling glucose detection in whole blood
We report on the approach enabling first-generation biosensor-based test-strips to respond linearly up to 40 mM glucose concentration. Glucose oxidase (GOD) has been chosen as the most selective biocatalyst. Decreasing its content in the enzyme containing membrane so that [E]0 ≈ [S]0, it is possible to increase an apparent Michaelis constant prolonging linear calibration range. Prussian Blue (PB) acting as a transducer practically prevents false-positive responses caused by reductants. Novel bi-pulse power generation readout with overall measurement duration of 5.005 s provides up to 10-fold enhanced sensitivity (17 ± 3 mA·M−1·cm−2), which compensates its obvious loss caused by the decrease of the enzyme content. Coupled with an advanced readout, the resulting test-strips become suitable for whole blood analysis even upon monitoring of diabetes.
期刊介绍:
Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.