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. 2017 Oct 20;17(10):2401. doi: 10.3390/s17102401

Figure 1.

Figure 1

Fabrication process of optofluidic chips for surface-enhanced Raman spectroscopy (SERS). roll-to-roll (R2R) hot embossing of polystyrene (PS) foil (a), followed by modification with aerosol jet printed Au nanoparticles (b) and sealing of the chip with a PS cover foil by R2R bonding (c).