A kind of medical degradable multilayer polymer/graphene film material and preparation method thereof

A technology for degrading polymers and graphene films, applied in the field of preparation of biodegradable materials, can solve problems such as the inability to adjust the mechanical strength and degradation time of materials according to actual needs, achieve controllable degradation time, good antibacterial function, and improve physical properties. barrier effect
CN110327484BActive Publication Date: 2021-01-12ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2021-01-12

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Abstract

The invention discloses a medical degradable multilayer polymer / graphene film material and a preparation method thereof. The method includes firstly attaching a biodegradable polymer to a single-layergraphene / Cu substrate by spin coating or casting; then removing Cu through etching to obtain polymer / single-layer graphene film; and laminating a plurality of layers of the polymer / single-layer graphene film to obtain the multilayer polymer / graphene film. The polymer is good in biocompatibility with graphene and is degradable in vivo, and the degradation time of the disclosed film material can beadjusted and controlled through controlling the number of layers of the polymer / graphene film. In addition, the multilayer polymer / graphene film has high mechanical strength, and is corrosion resistant and antibacterial. The preparation method is simple. The multilayer polymer / graphene film material is expected to be applied in clinical surgical suture supporting materials and surface modification of implants.
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Description

technical field

[0001] The invention relates to the preparation of biodegradable materials in the field of biomedicine, in particular to a medical degradable multi-layer polymer / graphene film material and its preparation method, which is expected to be applied to suturing support materials and implant surfaces in clinical operations modified. Background technique

[0002] The existing medical sutures and patches mainly use sheep casings, polymer chemical synthesis threads, etc., which have disadvantages such as unsatisfactory mechanical strength and too long or too short degradation and absorption time.

[0003] Graphene (Graphene) and its derivatives (graphene oxide and reduced graphene oxide) are widely used in tissue engineering, biological Sensing, disease diagnosis, antibacterial and antiviral materials, cancer targeting and photothermal therapy, drug delivery, electrical stimulation of cells, etc. show great potential. Many studies have found that low concentration o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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