Abstract: A biosensor having a core/shell nanocomposite of TiO2/rGO formed by hydrothermally coating reduced graphene oxide (rGO) flakes on titanate nanowires.

Abstract: A biosensor having a core/shell nanocomposite of TiO2/rGO formed by hydrothermally coating reduced graphene oxide (rGO) flakes on titanate nanowires.

Abstract: The invention relates to multifunctional face masks/coverings, compositions used in the multifunctional face masks, alternatively solutions of the compositions, manufacturing methods. The multifunctional face mask includes at least one composite layer comprising at least one layer of a nonwoven material and a composition coupled to the at least one layer of the nonwoven material such that the at least one composite layer is super-hydrophilic, adhesive, antiviral and/or antibacterial to trap and/or deactivate one or more of airborne virus, bacteria, pollen particles, and hazardous chemicals. The composition comprises food-grade adhesives, biodegradable adhesives, anions and/or cations of antivirus salts, antifreeze agents, moisture-holding substances, or a combination of them.

Abstract: A method of manufacturing a composition with hierarchical nanochemical bonding includes making a powder of one or more oxygen containing materials; mixing the powder either with a water solution of organic and/or inorganic acid to form an acidic slurry, or with water to form a hydrated basic slurry; and curing the slurry to form a solid. The powder comprises nanoscale particles, or microscale particles, or a mixture of nanoscale particles and microscale particles.

Abstract: In one aspect, a composite membrane comprises a polymeric host comprising polybenzimidazole or polybenzimidazole derivative and graphene oxide dispersed in the polymeric host, the graphene oxide at least partially functionalized with phosphonic acid moieties, phosphonate moieties or combinations thereof. In some embodiments, the functionalized graphene oxide is homogeneously dispersed in the polymeric host and/or is not agglomerated in the polymeric host.

Abstract: In one aspect, a composite membrane comprises a polymeric host comprising polybenzimidazole or polybenzimidazole derivative and graphene oxide dispersed in the polymeric host, the graphene oxide at least partially functionalized with phosphonic acid moieties, phosphonate moieties or combinations thereof. In some embodiments, the functionalized graphene oxide is homogeneously dispersed in the polymeric host and/or is not agglomerated in the polymeric host.