Carbon quantum dot based on cysteine and glucose as well as preparation method and application of carbon quantum dot

• Main Authors: LI BINGSHENG, CHEN YAJUN, LI LI, SONG DANJIE, XU JUCAI, CHEN CE
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2024
• Subjects: ADHESIVES; CHEMISTRY; COMPOUNDS THEREOF; DYES; HUMAN NECESSITIES; HYGIENE; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; NON-METALLIC ELEMENTS; PAINTS; PERFORMING OPERATIONS; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention relates to a carbon quantum dot based on cysteine and glucose as well as a preparation method and application of the carbon quantum dot. The carbon quantum dot is characterized by being prepared from glucose and L-cysteine in a molar ratio of 0.1-0.5. The carbon quantum dot is synthesized by using L-cysteine and glucose as reaction precursors through a microwave rapid reaction method, and ultraviolet visible light absorption spectrum and transmission spectrum tests show that nearly 100% ultraviolet absorption/shielding can be realized only by using a small amount of carbon quantum dots. The cysteine/glucose derived carbon quantum dots can inhibit apoptosis, reduce the oxidative stress level, improve the I-type collagen gene expression level and realize treatment of light aging. In addition, the cysteine/glucose derived carbon quantum dots can inhibit AAPH-induced senescence, and anti-senescence is realized by reducing oxidative stress reaction. 本发明涉及一种基于半胱氨酸和葡萄糖的碳量子点及其制备方法、应用，其特征在于：由葡萄糖和L-半胱氨酸的摩