Sensor arrays from spectroscopically-encoded polymers: Towards an affordable diagnostic device for biomolecules

Cross-reactive sensor arrays have recently emerged as a powerful tool in medical diagnostics. Here we present a sensor array based on inexpensive, spectroscopically self-encoded polymers. The array was analyzed by Raman spectroscopy before and after exposure to a series of analyte solutions. The changes in the polymers’ vibrational fingerprints were further quantified using Pearson’s correlation coefficient between spectra before and after...