Fig. 3: Portable plasmonic detection of glucose with a portable fiber spectrometer. | Microsystems & Nanoengineering

Fig. 3: Portable plasmonic detection of glucose with a portable fiber spectrometer.

From: Portable and label-free optical detection of sweat glucose using functionalized plasmonic nanopillar array

Fig. 3: Portable plasmonic detection of glucose with a portable fiber spectrometer.

a The relationship between the LSPR reflectance intensity of functionalized gold-coated nanopillars and the glucose concentration by a portable LSPR spectrometer. b Relationship between the reflection intensity and glucose concentration under the action of 4-MPBA modified gold nanopillars sensor achieved LoD of 330 μmol/L. c The relationship between the LSPR reflectance intensity of functionalized silver-coated nanopillars and the glucose concentration by a portable LSPR spectrometer. d Relationship between the reflection intensity and glucose concentration under the action of 4-MPBA modified silver nanopillars sensor LoD of 20.9 μmol/L

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