Highly sensitive surface enhanced raman scattering (sers) sensor using metal organic framework (mof) substrate and fiber optical channels and methods of manufacturing and using the same

A method for detecting foreign traces in a test liquid, comprising:

• (a) flowing said test liquid through an inlet channel, a Si/OH/Au-ZIF8 platform, and an outlet channel of a microfluidic chip of a SERS sensor;
• (b) turning on a He/Ne laser source of said SERS sensor;
• (c) receiving scattering frequencies from said test liquid through said Si/OH/Au-ZIF8 platform using a photodetector of said SERS sensor;
• and
• (d) measuring intensities of said scattering frequencies using a computer of said SERS sensor.

A method of fabricating an surface enhanced Raman spectroscopy (SERS) sensor, comprising:

• connecting a laser source to an input fiber optics cable;
• connecting a microfluidic chip to said input fiber optic cable, said microfluidic chip further comprising an inlet channel, a Si/OH/Au-ZIF8 platform, and an inlet channel;
• connecting a micro-pump device to said inlet channel;
• connecting an output fiber optic cable couple to said outlet channel;
• and
• connecting a computer to said output fiber optic cable using a photodetector.