Molding and Encoding Carbon Nitride-Containing Edible Oil Liquid Objects via Interfacial Toughening in Waterborne Systems

Charge interaction-driven jamming of nanoparticle monolayers at the oil–water interface can be employed as a method to mold liquids into tailored stable 3D liquid objects. Here, objects are fabricated via combination biocompatible aqueous poly(vinyl sulfonic acid, sodium salt) solution and colloidal dispersion highly fluorescent organo-modified graphitic carbon nitride (g-C3N4) in edible sunflower oil. The as-formed object shows stability broad pH range, well flexible pathways for efficient exchange molecules liquid–liquid interphase, which allows photodegradation rhodamine B visible light irradiation that also enables an encoding concept. g-C3N4-based point toward various applications, example, all-liquid biphasic photocatalysis, artificial compartmentalized systems, printing, or bioprinting.