Bioactive coating prepared by bio-3D printing of castor oil-based waterborne polyurethane mixed with carbonic anhydrase

CUI Jiandong; CUI Zhaohui; SU Zhiguo; ZHENG Chunyang; MA Guanghui; ZHANG Songping

doi:10.11949/j.issn.0438-1157.20180054

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Bioactive coating prepared by bio-3D printing of castor oil-based waterborne polyurethane mixed with carbonic anhydrase

更新时间：2025-12-10

- Bioactive coating prepared by bio-3D printing of castor oil-based waterborne polyurethane mixed with carbonic anhydrase
- CIESC Journal Issue 8, Pages: 3577-3584(2018)
- 作者机构：
  
  1. 河北科技大学生物科学与工程学院,河北,石家庄,050018
  2. 中国科学院过程工程研究所生化工程国家重点实验室,北京,100190
  3. 北京奥格诺生物科技有限公司,北京,100192
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180054
  CLC： 643.3
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
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CUI Jiandong, CUI Zhaohui, SU Zhiguo, et al. Bioactive coating prepared by bio-3D printing of castor oil-based waterborne polyurethane mixed with carbonic anhydrase[J]. CIESC Journal, 2018, (8): 3577-3584.
DOI：

CUI Jiandong, CUI Zhaohui, SU Zhiguo, et al. Bioactive coating prepared by bio-3D printing of castor oil-based waterborne polyurethane mixed with carbonic anhydrase[J]. CIESC Journal, 2018, (8): 3577-3584. DOI： 10.11949/j.issn.0438-1157.20180054.

摘要

以蓖麻油基阴离子水性聚氨酯为载体，采用生物3D打印技术制备含碳酸酐酶的生物活性聚氨酯涂层，并与传统涂覆法制备的含酶涂层进行对比。通过动态光散射、红外、扫描电镜-X射线能谱、热重、接触角等各种手段对涂层中酶与水性聚氨酯之间的相互作用进行了分析表征。结果表明，在形成生物活性涂层过程中，碳酸酐酶是通过与聚氨酯链段上阴离子基团的静电吸引被固定在聚氨酯涂层中。催化活性结果表明，与传统涂覆法相比，涂层的酶活回收率为50.51%，比传统涂覆法提高了4倍。这可能是由于生物3D打印技术制备的含酶涂层更薄、更均匀，表面更平滑。

Abstract

Castor oil-based anionic waterborne polyurethane (WPU) mixed with carbonic anhydrase (CA) was used to prepare bioactive coatings by bio-3D printing technique and regular coating methods. Interactions between CA and WPU were studied by dynamic light scattering

SEM-EDC

TGA

and contact angle analyses. The results showed that the CA could attach tightly to WPU nanoparticles through the electrostatic interactions with anionic groups on the polyurethane. The activity recovery of bioactive coatings prepared by bio-3D printing technology was 4-fold higher than that of the conventional coating method

reaching 50.51%. The higher activity recovery could be attributed to the thin layer

smooth surface

and uniform distribution of CA in the 3D printed coating.

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