Due to different currents, the oxidase in the reaction zone containing K 3 will undergo different electrochemical reactions. By varying the resistance, different electrochemical reactions on the electrode of the test strip will occur. The working principle of the blood glucose meter is based on the electrochemical reaction induced by cyclic voltammetry. In this test strip, gold-coated electrode was adopted as the base material since gold has good conductivity and is quite stable. Therefore, in this study, an effective method was proposed to create an excellent oxidase-based sensing test strip.
![accu-chek test strips copper or gold accu-chek test strips copper or gold](https://cdn.shopify.com/s/files/1/1579/3465/products/High_Res_JPG-Guide_Pkg_100ct_strip_1024x1024_cffac098-289e-4e2d-96b9-64521593efa8_1024x1024.jpg)
Other types of electrochemical biosensors for the determination of blood glucose levels based on gold structures and glucose oxidase have also been investigated. The working potential of electrodes causes oxidase to undergo electrochemical reaction, creating a set of clear anodic and reductive peaks, which suggests that the reaction between electrodes and oxidase on the test strip is stable. Through electrochemical reaction of glucose oxidase (GOD), oxidase is catalyzed by electrodes to give the best performance. A gold-coated test strip has the merits of excellent conductivity and a reliable fabrication process. Besides carbon paste, the electrode of test strip can also be made from other base materials such as graphene and gold. Such carbon paste-coated test strip has been widely used in clinical tests for measuring the blood glucose level of diabetic patients. The electrode-sensing circuit of the biochemical sensor typically is made from screen-printed carbon paste which acts as the base material for the test strip. The reaction zone on the electrode of the blood glucose test strip is covered with glucose oxidase, which allows electrons formed in-between the oxidase and electrode surfaces to be transported to the biochemical sensor. The measured value is recorded in a blood glucose meter which also contains blood glucose data from previous measurements. The measurement is quick and only requires a small amount of blood. IntroductionĪ blood glucose meter uses blood glucose test strips to measure the blood glucose level of a diabetic patient. This method can also be applied to tune the accuracy of readings for test strips coated with other materials. It has been proved in this study that adjusting the resistance of the blood glucose meter can optimize the chemical reaction on gold-coated test strips as well as its reading. Therefore, when the resistance of the blood glucose meter is at 2.4 KΩ, the standard deviation (STD) and coefficient of variation (CV) of the test strip are lower than those of the test strips measured at resistances of 2.2 KΩ and 2.6 KΩ. The experimental results show that by adjusting the resistance of the blood glucose meter, the accuracy of blood glucose meter reading can be tuned and blood glucose reading can be stabilized. The maximum of the anodic and reductive peaks can be used as reference to adjust the resistance of the blood glucose meter. When glucose oxidase undergoes electrochemical reaction, the medium, K 3, will act as an electron acceptor, causing the electrodes on the test strip to generate a pair of clear anodic and reductive peaks. Glucose oxidase (GOD) was added into K 3. Cyclic voltammetry was applied to test strips to undergo electrochemical reaction under a potential range of ☐.4 V. Such gold-coated test strip is feasible for mass production to achieve economies of scale.
![accu-chek test strips copper or gold accu-chek test strips copper or gold](https://i.ytimg.com/vi/BGwKsNL22NA/hq720.jpg)
![accu-chek test strips copper or gold accu-chek test strips copper or gold](https://i.ytimg.com/vi/BGwKsNL22NA/maxresdefault.jpg)
In this study, a novel gold-coated test strip for blood glucose measurement has been designed.