This research used an FAU-type zeolite, namely, zeolite X, to modify the electrode. Imprinted zeolite TS-1 and imprinted zeolite LTA have been used to modify the electrode as a potentiometric sensor in the glucose analysis in blood serum. The suitability of the IZ pore size with the glucose molecule increases the capacity of zeolite adsorption, while the rigid nature of the zeolite means that it is not prone to swelling in water, so it can provide high sensitivity and selectivity in detecting glucose. An imprinted zeolite (IZ) is a zeolite in which there is a template in the pores of the molecule to be analyzed. Due to its unique properties, zeolite is very suitable for use as a molecular template on electrochemical sensors. It is not easy to swell because zeolites have a fixed upper hydration limit and undergo only limited structural expansion upon hydration. It has a large surface area, high ion exchange capacity, and high thermal and chemical stability. Zeolite is an inorganic compound with a porous crystalline structure that has a three-dimensional framework where the structure makes the zeolite easy to modify. A potentiometric method using zeolite-modified electrodes has been developed for blood glucose analysis. Several researchers have developed a method of analyzing glucose by electrometry through the modification of electrodes. Therefore, its use as an alternative electrode for routine glucose analysis in the medical field is recommended. The electrodes also showed high selectivity for glucose in the matrix of uric acid, urea, NaCl, and KCl. The electrodes showed high stability for more than 5 weeks with 141 uses. This electrode showed precision values of 97.14-99.02%, accuracy values of 98.65-99.39%, and electrode response times of 10-13 s. The electrode performance was expressed by the Nernst factor value of 30 mV/decade, the measuring range of 10 −4-10 −2 M, the upper detection limit of 1.38 × 10 −2 M, and the lower detection limit of 1.28 × 10 −4 M, so this electrode can be used for glucose analysis with a normal concentration (70-110 mg/dL or equivalent to 3.8 × 10 −3-6.1 × 10 −3 M), as well as the glucose concentration of people with diabetes mellitus (>200 mg/dL or about 10 −2 M). The IZ–carbon paste electrode showed optimum performance due to a mass ratio of carbon, paraffin, and imprinted zeolite X of 12:7:1. This is thought to be due to the presence of a molecular template within it. Imprinted zeolite X exhibited a 20 times greater adsorption capacity size, and an adsorption efficiency 3 times greater than that of zeolite X. The characterization results of XRD showed the presence of specific peaks, which were confirmed with standard zeolite X. Zeolite X was synthesized using a sol–gel-hydrothermal method at a temperature of 100 ☌ with basic materials of NaAlO 2, NaOH, TEOS, and distilled water. In this study, the sensor was made of a mixture of carbon paste and imprinted zeolite X. Update the latest VBIOS for your EVGA Graphics card with a single click.Įnter the motherboard BIOS to enable Resizable BAR.The development of sensors based on imprinted zeolite X to detect blood glucose through potentiometry was performed. See what's missing and how you can fix it. Simplify GPU Resizable BAR with EVGA Precision X1 TMĬheck your Resizable BAR status at a glance.
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