{Reference Type}: Journal Article {Title}: Well-modulated interfacial ion transport enables D-sorbitol/PEDOT:PSS fibers to sense brain electrophysiological signals in vivo. {Author}: Xu T; {Journal}: Chem Commun (Camb) {Volume}: 60 {Issue}: 63 {Year}: 2024 Aug 1 {Factor}: 6.065 {DOI}: 10.1039/d4cc01867b {Abstract}: A neuroelectrode can be easily prepared using a wet-spun fiber of D-sorbitol/PEDOT:PSS. At a D-sorbitol/PEDOT:PSS weight ratio of 6, the fiber is well-modulated with suitable characters, including the morphology, crystallization, diffusion resistance (179 kΩ), and electric double-layer capacitance (2.72 μF), for sensitive recording of brain activity during somatosensory stimulation and seizures. Additionally, the fiber is highly biocompatible with the brain. This study presents a simple and controllable strategy for the chemical construction of conducting polymer-based neurosensors.