Table 2 Refractive index and thickness of au/cqds thin film exposed to different concentrations of UA ranging from 0 µM to 1.0 µM.

From: Eco-friendly synthesis of carbon quantum dots from lemons for enhanced uric acid detection using gold-integrated surface plasmon resonance

UA concentration (µM)

CQDs layer

Refractive index

Thickness (nm)

n

k

0

1.343

0.1137

12.00

0.05

1.344

0.1087

12.00

0.1

1.350

0.1037

12.00

0.5

1.355

0.0907

12.00

1.0

1.372

0.0827

12.20

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