Eco‐Friendly Colorimetric Nanofiber Design: Halochromic Sensors with Tunable pH‐Sensing Regime Based on 2‐Ethyl‐2‐Oxazoline and 2‐n‐Butyl‐2‐Oxazoline Statistical Copolymers Functionalized with Alizarin Yellow R (Adv. Funct. Mater. 1/2022)

Abstract

Eco-Friendly Electrospinning In article number 2106859, Richard Hoogenboom, Karen De Clerck, and co-workers show that functionalization and electrospinning of 2-ethyl-2-oxazoline and 2-n-butyl-2-oxazoline statistical copolymers with alizarin yellow R (AYR) analogues leads to eco-friendly designed halochromic nanofibrous sensors of which responsivity, stability, sensitivity, and pH-response can be tuned by varying support copolymer and AYR-modified polymer chain length, resulting in user-friendly reusable sensors for sub-ppm detection of biogenic amines applicable in breath analysis or food packaging.