Amin Nabawy Ibrahim Abdelaal
Demonstrator
Metamaterial-inspired cotton textile functionalized with polyaniline-methylcellulose@rGO-CuS Nanohybrids: Tunable negative dielectric permittivity and enhanced piezoresistivity
International Journal of Biological Macromolecules • 2026
Publication Information
Authors
Mona T. Al-Shemy, Xinhui Yang, Yajiang Yang, Qin Wang, Amin Nabawy, Amr Hessein, Samir Kamel, Gamal Turky
Keywords
Cotton fabrics, Polyaniline rGO@CuS, Dielectric spectroscopy, Conductive textile, Strain sensor
Journal
International Journal of Biological Macromolecules
Publisher
Elsevier
Volume
360
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
In this study, multifunctional polyaniline-methylcellulose@rGO-CuS (PM@rGO-CuS) nanohybrids were synthesized via a facile one-pot method. This approach combined rGO-CuS nanohybrids, aniline monomer, and methylcellulose (MC). By precisely tuning the rGO-CuS fraction, the composite's properties were optimized and thoroughly characterized. The resulting nanohybrids were then applied to cotton fabric in a single-bath process using chitosan (CS). This produced an engineered textile with exceptional electronic properties and a DC conductivity of 4.5 × 10(-5) S/cm. This represents a six-order-of-magnitude enhancement over the original cotton material. Notably, this study presents the first demonstration of tunable negative dielectric permittivity (ε