Sustainable MXene-chitosan/chitin composites for Interdisciplinary applications in water purification, bio-medical, bio-sensing and electronic fields

MXenes possess appealing mechanical, optical, thermal, electronic and surface functionalities that have been applied to develop biomedical applications, water treatment, biosensors, EMI shielding materials and solvent dehydration. Various MXene-polymer composites have been fabricated to enhance biocompatibility/biodegradability, adsorption, physiological stability, sustained drug release, surface functionality and selectivity/ sensitivity. Chitosan has been considered as an attractive material for developing MXene-based hybridized composites because of its biocompatible, antibacterial, and surface-modifiable nature. The present review article describes recent developments in the use of MXene-chitosan composites in multiple fields, such as the removal of contaminants from water, biomedical applications, sensing or detection of different food/water contaminants, fire retardants/sensors, solvent dehydration and humidity sensors. All these applications of MXene-chitosan composites are discussed, with a particular focus on important challenges and future perspectives. MXene-chitosan hybrid materials can open significant new opportunities for future bio- and nanomedicine applications.