Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (06): 9-14.doi: 10.13475/j.fzxb.20210804806

• Manufacture and Application of High Performance Flexible Textile Composites • Previous Articles     Next Articles

Preparation of metal phenolic network/zwitterionic polymer coated polypropylene mesh and its resistance to protein adsorption

WANG Qian1,2, QIAO Yansha1,2, WANG Junshuo1, LI Yan1,2,3(), WANG Lu1,2,3   

  1. 1. College of Textiles, Donghua University, Shanghai 201620, China
    2. Key Laboratory of Textile Science & Technology of Ministry of Education, Donghua University, Shanghai 201620, China
    3. Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
  • Received:2021-08-10 Revised:2022-01-14 Online:2022-06-15 Published:2022-07-15
  • Contact: LI Yan E-mail:yanli@dhu.edu.cn

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Abstract:

In order to combine hydrophilic zwitterions with inert polypropylene (PP) mesh and reduce the adsorption of protein on the mesh surface, poly(carboxybetaine methacrylate) (PCBMA) was deposited on PP mesh through Fe(Ⅲ) and tannic acid (TA) layer-by-layer self-assembly of metal phenolic network (MPN). The micro-morphology, surface composition, contact angle, surface potential, mechanical properties, protein adsorption properties and cytotoxicity of the meshes before and after modification were characterized and analyzed. The results show that PCBMA can wrap evenly on the surface of PP monofilament assisted by MPN, and the surface chemical composition of the mesh is changed. Moreover, PCBMA-Fe/TA coating reduces the water contact angle of the mesh to 37° and the surface zeta potential is increased from -55.7 mV to -5.14 mV. In addition, the mechanical properties of PP mesh are not affected by the coating, but the coating brings significant protein adsorption resistance to the mesh. Furthermore, the relative cell viability of the modified mesh reaches 89%, which shows excellent biocompatibility. In general, the study provides a reference basis for the antifouling modification of inert medical devices.

Key words: polypropylene mesh, tannic acid, metal phenolic network, layer-by-layer, zwitterionic, protein adsorption resistance

CLC Number: 

  • R318.0

Fig.1

SEM images of PP, Fe/TA-PP and PCBMA-Fe/TA-PP"

Fig.2

1H NMR spectra of PCBMA"

Fig.3

XPS spectra of PCBMA-Fe/TA-PP"

Fig.4

FT-IR spectra of PP, Fe/TA-PP and PCBMA-Fe/TA-PP"

Fig.5

Change in water contact angle of meshes before and after modification"

Fig.6

Change in surface Zeta potential of meshes before and after modification"

Tab.1

Mechanical properties of meshes before and after modification"

试样名称 断裂强度/(N·cm-1) 断裂伸长率/%
横向 纵向 横向 纵向
PP 50.9±0.6 48.1±2.3 61.8±0.8 90.0±1.7
Fe/TA-PP 51.1±0.5 50.3±1.6 59.8±1.3 92.4±1.4
PCBMA-Fe/TA-PP 53.2±0.8 50.8±1.9 61.9±1.4 93.1±1.2

Fig.7

Fluorescence images labeled by BSA-FITC of meshes"

Tab.2

CCK-8 absorbance value of L929 at 24 h"

试样名称 CCK-8吸光度值
空白对照 0.53±0.05
PP 0.51±0.06
PCBMA-Fe/TA-PP 0.47±0.06
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