Codable monodisperse self-healing hydrogel microsphere and preparation method thereof

• Main Authors: YIN SUNA, LI YANQING, GU LIXIA
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

According to the encodable monodisperse self-healing hydrogel microspheres and the preparation method thereof, different types of monomers are added into a hydrogel precursor solution, and the prepared hydrogel microspheres are reversibly connected in different modes and have self-healing performance; coding elements are added into a hydrogel precursor solution, hydrogel microspheres are dyed or loaded with quantum dots, fluorescent dye is used for displaying fluorescence or loaded photonic crystals are used for displaying structural color, cross-linking of molecular chains is destroyed, the mutually independent microspheres can be obtained again, and the advantage of recycling is achieved; by adding a field response coding element into a hydrogel precursor solution, coding can be controlled through an electric field or a magnetic field, or microspheres are collected and an informatization pattern is induced to be assembled; the hydrogel microspheres prepared by a microfluidic technology have high monodispers