Nano-composite antibacterial coating for dental material and preparation method of nano-composite antibacterial coating

By preparing a nanocomposite antibacterial coating on the surface of dental materials, the problems of easy coating peeling and insufficient antibacterial performance are solved, achieving efficient and stable antibacterial effect and biosafety, and it is suitable for various dental material surfaces.

CN122097159APending Publication Date: 2026-05-29SOUTH CHINA UNIV OF TECH
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Patent Information

Application Number
CN202610067894.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-19
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The antibacterial coating on the surface of existing dental materials is prone to peeling off, has a short service life, and is insufficient in antibacterial performance, which may affect the original performance of dental materials. Furthermore, the overuse of antibiotics leads to bacterial resistance and adverse effects on the body.

Method used

A nanocomposite antibacterial coating is formed by mixing monomer-modified arginine, monomer N-isopropylacrylamide, monomer hexyl methacrylate, initiator azobisisobutyramidine hydrochloride, dispersant hexadecyltrimethylammonium bromide, and crosslinking agent N,N-methylenebis(acrylamide) with a nano zinc oxide dispersion. This nanogel composite zinc oxide coating is then applied to the surface of dental materials, utilizing electrostatic interactions to enhance the stability and antibacterial properties of the coating.

Benefits of technology

The nanocomposite coating remains intact in different solutions, with an antibacterial rate of over 99%. It has a long-lasting bactericidal effect against Streptococcus mutans and Candida albicans, high biosafety, simple process, and low price.

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Abstract

The invention belongs to the technical field of dental antibacterial materials, and discloses a nano-composite antibacterial coating for a dental material and a preparation method of the nano-composite antibacterial coating. The method comprises the following steps: dissolving monomer modified arginine, monomer N-isopropylacrylamide, monomer hexyl methacrylate, an initiator azobis (isobutylamidine hydrochloride), a dispersant hexadecyl trimethyl ammonium bromide and a cross-linking agent N, N-methylene bis (acrylamide) in water, reacting in a protective atmosphere, and dialyzing to obtain a dispersion liquid of nanogel; and mixing the nanogel dispersion liquid with the nano-zinc oxide dispersion liquid to obtain the nanogel composite zinc oxide antibacterial coating, and coating to form a coating. The nano-composite antibacterial coating for the dental material disclosed by the invention has excellent retention capability and antibacterial property.
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