3.8 Proceedings Paper

Numerical Investigation of Localized Surface Plasmon Resonance (LSPR) based Sensor for Glucose Level Monitoring

出版社

IEEE
DOI: 10.1109/ICA-SYMP50206.2021.9358441

关键词

Localized Surface Plasmon Resonance (LSPR); Maxwell Garnett's formula; Fabry-Perot equation; Urine glucose; Gold nanoparticles

资金

  1. ASAHI Glass foundation [RES-62-384-21-070]
  2. Rachadapisek Sompote Fund for Intelligent Control Automation of Process Systems Research Unit, Chulalongkorn University

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This study aims to design and develop a LSPR enhanced gold colloidal nanoparticles sensor for biomedical applications, specifically for detecting glucose levels.
This study aims to apply Localized Surface Plasmon Resonance (LSPR), Maxwell Garnett's formula, and Fabry-Perot theory together to design and develop a LSPR enhanced gold colloidal nanoparticles (AuNPs) sensor to be used in biomedical applications such as detection of glucose level in urine for early stage screening of diabetic patients. In this work, the LSPR based sensor has been designed and studied numerically to detect the glucose level from the change in the effective index resulting in a red shift of the absorption peak. The sensors were designed to have various sizes of the gold nanoparticles in a range between 20 nm and 100 nm by having different molar ratio with Trisodium Citrate (TSC) which acts as stabilizer in the synthesis. The maximum possible sensitivity of the sensor can be achieved with 70 nm diameter of gold nanoparticles at 0.2 volume fraction of AuNP to glucose solution.

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