METHOD FOR MODIFYING SURFACE OF MATERIAL, MATERIAL MODIFIED THEREBY AND USE THEREOF, AND MEDICAL PRODUCT

WIPO Patent Application WO/2020/215307

A1

Disclosed are a method for modifying the surface of a material, a material modified by using the method and the use thereof, and a medical product comprising the material. The method for modifying the surface of the material comprises the step of forming a coating layer on the surface of the material by means of the self-assembly of colloidal particles, wherein the colloidal particles comprise inorganic colloid particles having a particle diameter of 1-10 μm and organic polymer colloidal particles having a particle diameter of 0.05-0.75 μm, wherein all or some of the inorganic colloid particles are subjected to a chemical modification, comprising a chemical functional group modification and/or a biologically active molecule modification. The physical and chemical properties of the material surface can be regulated at the same time by combining the chemical modification and self-assembly of the colloidal particles, and the regional diversity of the surface chemistry can achieved by selecting different chemically-modified colloidal particles to self-assemble, and a surface having both a multistage physical structure and a complex chemistry can be constructed in a large area in one step.

WANG PENGYUAN (CN)
SHI YUE (CN)
TAO XUELIAN (CN)
KINGSHOTT PETER (CN)
THISSEN HELMUT (CN)

PCT/CN2019/084522

October 29, 2020

April 26, 2019

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SHENZHEN INSTITUTE OF ADVANCED TECH SHENZHEN CN (CN)

A61L31/08; A61L31/10; A61L31/14; B05D1/18; C08K3/36; C09D125/06

CN105796478A	2016-07-27
CN109662941A	2019-04-23
CN107574676A	2018-01-12
CN104744712A	2015-07-01
CN101429049A	2009-05-13
US20060244873A1	2006-11-02

SHENZHEN KEJIN INTELLECTUAL PROPERTY OFFICE (CN)

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