Definitions
Surface Plasmon	delocalized electron that oscillates between any two materials
Abbreviations
CA 19-9	Carbohydrate Antigen 19-9
CAF	Cancer associated fibroblast
DSN	Duplex-Specific Nuclease
EUS FNA	Endoscopic Ultrasound with fine needle biopsy
EV	Extracellular Vesicle
GEM	Gemcitabine
GPC1	Glypican-1
nPES	Nanoplasmon enhanced scattering
PC	Pancreatic Cancer
PC-DFA	Principal Component Differential Function Analysis
PDAC	Pancreatic adenocarcinoma
PD-L1	Programmed Death-Ligand 1
SERS	Surface enhanced Raman spectroscopy