ZINC OXIDE/ZINC PHOSPHATE NANOROD COMPOSITE ANTIBACTERIAL COATING AND PREPARATION METHOD THEREFOR AND USE THEREOF

Title:

ZINC OXIDE/ZINC PHOSPHATE NANOROD COMPOSITE ANTIBACTERIAL COATING AND PREPARATION METHOD THEREFOR AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2024/066040

Kind Code:

A1

Abstract:

A zinc oxide/zinc phosphate nanorod composite antibacterial coating and a preparation method therefor and use thereof. The preparation method comprises preparing a zinc oxide nanorod coating on the surface of a medical material and then converting zinc oxide in the zinc oxide nanorod coating into zinc phosphate by means of a water bath treatment in a phosphate or biphosphate solution to give a zinc oxide/zinc phosphate nanorod composite antibacterial coating with a nano morphology. According to the preparation method, firstly, a zinc oxide nanorod coating is prepared on the surface of a medical material, and then the zinc oxide part in the zinc oxide nanorod coating is converted into zinc phosphate with a lower degradation rate by means of a water bath treatment in a phosphate or biphosphate solution. The conversion ratio of the zinc phosphate can be regulated by regulating parameters of the water bath treatment, so that the overall degradation rate of the coating is regulated. The coating can be uniformly and efficiently prepared on the surface of a medical material with a complex shape. The process is simple, and the cost is low. The coating is suitable for batch and industrial production.

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Inventors:

GAO ANG (CN)
ZHAO FEILONG (CN)
WANG HUAIYU (CN)

Application Number:

PCT/CN2022/137052

Publication Date:

April 04, 2024

Filing Date:

December 06, 2022

Export Citation:

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Assignee:

SHENZHEN INST ADV TECH (CN)

International Classes:

A61L27/42; A61L27/32; C23C18/12

Foreign References:

CN113117145A	2021-07-16
CN113797396A	2021-12-17
CN102793948A	2012-11-28
EP0505086A2	1992-09-23
CN105259096A	2016-01-20
CN114686916A	2022-07-01

Other References:

ZHANG LIAN;YANG HAO.: "Preparation of ZnO Nanorod Array Coating and Its Antibacterial Property", WUHAN GONGCHENG DAXUE XUEBAO = JOURNAL OF WUHAN INSTITUTE OF TECHNOLOGY, vol. 38, no. 03, 30 June 2016 (2016-06-30), pages 236 - 239, XP009553458, ISSN: 1674-2869

Attorney, Agent or Firm:

BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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