Guided tissue regeneration composite membrane material and preparation method thereof
A technology of tissue regeneration and composite membrane, applied in medical science, surgery, etc., to achieve the effect of promoting periodontal ligament cell adhesion, promoting periosteum cell adhesion, and good biocompatibility
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[0033] Example one
[0034] In this embodiment, the present invention provides a method for preparing a double-layer guided tissue regeneration composite membrane material, which includes the following steps:
[0035] Prepare the loose layer of macromolecule polymer and phosphate inorganic substance in the bottom layer. The steps for preparing the macromolecular polymer / phosphate inorganic porous layer are described in detail below:
[0036] Step 1. Use template induction and self-assembly methods to synthesize phosphate inorganic compounds. The non-ionic block copolymer is used as a structure-directing agent and dissolved in deionized water, stirred with magnetic force until the solution is clear; adjust the pH value of the solution system to pH=1 with 37% concentrated hydrochloric acid, and stir for 2h until the solution becomes a white emulsion. Then add ethyl orthosilicate, calcium nitrate and triethyl phosphate into the solution reaction system, and then put them into the auto...
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