New test may improve pancreatic cancer diagnoses

Method relies on five proteins from bits of tumor circulating in blood

antibody-coated chip

CHIP OF HOLES  When an antibody-coated chip with nano-sized holes (left) binds proteins in extracellular vesicles (droplets in image at right) shed from pancreatic tumors, a sensor detects a shift in the wavelength of light shining through the holes.

K.S. Yang et al/STM 2017

Pancreatic cancer is hard to detect early, when the disease is most amenable to treatment.