Abstract
Nanofiber assemblies have large surface area to volume ratio and unique porous structure. We demonstrated the concept that nanofiber assemblies can be used as receptor for Infrared Spectroscopy (FT-IR) analysis. Polyacrylonitrile (PAN) nanofiber assemblies were fabricated via electrospinning for the receptor which had high transmittancy in the entire wave number range. Two aqueous solutions, i.e. crystal violet (CV) and p-nitrophenol (p-N) solutions, were used as target samples for the transmission FT-IR analysis. Calibration curves with high correlation coefficient were obtained using PAN nanofiber assemblies. However, it was found that the correlation coefficient was dependent on chemical structure of the target molecules, i.e. lower correlation coefficient was obtained in the case of the p-N solution which had a lower molecular weight and a hydrophilic group.
