Preparation method and application of titanium dioxide nano composite material

Abstract

The invention discloses a preparation method of a titanium dioxide nano composite material, and belongs to the technical field of nano medical materials. The invention provides a medical composite material with wide antiviral activity, antibacterial activity and anticancer activity, and provides the preparation method of the titanium dioxide nano composite material. According to the invention, titanium dioxide is used as an inorganic semiconductor nano material as a carrier, encapsulation of organic photosensitive molecules is carried out, and biocompatible macromolecules are used for surfacemodification. The prepared material has wide antiviral activity, antibacterial activity and anticancer activity, and the biological activity of the material destroys viruses, bacteria and nucleic acids, proteins, lysosomes and mitochondria of bacterial and infected cells based on active oxygen generated by photocatalysis, so that the viruses, bacteria and cancer cells cannot be copied, and tissuenutrients cannot be supplied, thereby killing the viruses, bacteria and cancer cells. The nano composite material provided by the invention can also be used as a protective material for medical treatment and public health, including medical masks, protective clothing, gloves, disinfectants and the like.

Description

technical field [0001] The invention relates to a preparation method and application of a titanium dioxide nanocomposite material, belonging to the technical field of nanomedical materials. Background technique [0002] The core of the virus is ribonucleic acid (RNA) or deoxyribonucleic acid (DNA), and the outer shell is protein, which parasitizes in the host cell, such as SARS virus, new coronavirus, Ebola virus, etc. in some animal cells, through human Infected through contact with animals, until the consequences of human-to-human transmission occur. Viruses rely on the host cell's metabolic system for proliferation and replication. Viruses synthesize viral nucleic acids and proteins in host cells, assemble into infectious virions, and release them from cells to infect other cells. Viral diseases are the main infectious diseases of humans. Common diseases caused by viruses include influenza, common cold, pneumonia, measles, mumps, polio, infectious hepatitis, hepatitis B...

AI Technical Summary

Problems solved by technology

Bacterial infection is a systemic infection caused by pathogenic bacteria or conditional pathogenic bacteria invading the blood circulation to grow and reproduce, producing toxins and other metabolites, especially the elderly, children, people with chronic diseases or low immune function may develop sepsis or sepsis Hyperemia, the use of antibiotics to treat bacterial infections often leads to bacterial resistance, making antibiotics ineffective, leading to superinfection of drug-resistant bacteria

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