Research Article

A Camera Phone Localised Surface Plasmon Biosensing Platform towards Low-Cost Label-Free Diagnostic Testing

Figure 5

Comparison of CCL2 absorbance change versus concentration using spherical and rod-shaped gold nanoparticles. Images of transmitted light were captured 3 times for each concentration and placed in a row. Images were then combined in column to produce a microtiter array pattern of declining CCL2 concentration. Intensities of each concentration for both nanoparticle and nanorod assay were assessed within Image J for calculation of absorbance.
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