Facile Preparation of Robust Microcapsules by Manipulating Metal-Coordination Interaction between Biomineral Layer and Bioadhesive Layer
文献类型：期刊论文
| 作者 | Zhang, Lei1; Shi, Jiafu1; Jiang, Zhongyi1,2; Jiang, Yanjun3; Meng, Ruijie1; Zhu, Yuanyuan1; Liang, Yanpeng1; Zheng, Yang1 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 3期号:2页码:597-605 |
| 关键词 | organic-inorganic hybrid microcapsules biomineral layer bioadhesive layer metal-coordination interaction mechanical stability |
| ISSN号 | 1944-8244 |
| 其他题名 | ACS Appl. Mater. Interfaces |
| 中文摘要 | A novel approach combining biomimetic mineralization and bioadhesion is proposed to prepare robust and versatile organic-inorganic hybrid microcapsules. More specifically, these microcapsules are fabricated by sequential deposition of inorganic layer and organic layer on the surface of CaCO(3) microparticles, followed by the dissolution of CaCO(3) microparticles using EDTA. During the preparation process, protamine induces the hydrolysis and condensation of titania or silica precursor to form the inorganic layer or the biomineral layer. The organic layer or bioadhesive layer was formed through the rapid, spontaneous oxidative polymerization of dopamine into polydopamine (PDA) on the surface of the biomineral layer. There exist multiple interactions between the inorganic layer and the organic layer. Thus, the as-prepared organic-inorganic hybrid microcapsules acquire much higher mechanical stability and surface reactivity than pure titania or pure silica microcapsules. Furthermore, protamine/silica/polydopamine hybrid microcapsules display superior mechanical stability to protamine/silica/polydopamine hybrid microcapsules because of the formation of Ti(IV)-catechol coordination complex between the biomineral layer and the bioadhesive layer. As an example of application, three enzymes are respectively immobilized through physical encapsulation in the lumen, in situ entrapment within the wall and chemical attachment on the out surface of the hybrid microcapsules. The as-constructed multienzyme system displays higher catalytic activity and operational stability. Hopefully, the approach developed in this study will evolve as a generic platform for facile and controllable preparation of organic-inorganic hybrid materials with different compositions and shapes for a variety of applications in catalysis, sensor, drug/gene delivery. |
| 英文摘要 | A novel approach combining biomimetic mineralization and bioadhesion is proposed to prepare robust and versatile organic-inorganic hybrid microcapsules. More specifically, these microcapsules are fabricated by sequential deposition of inorganic layer and organic layer on the surface of CaCO(3) microparticles, followed by the dissolution of CaCO(3) microparticles using EDTA. During the preparation process, protamine induces the hydrolysis and condensation of titania or silica precursor to form the inorganic layer or the biomineral layer. The organic layer or bioadhesive layer was formed through the rapid, spontaneous oxidative polymerization of dopamine into polydopamine (PDA) on the surface of the biomineral layer. There exist multiple interactions between the inorganic layer and the organic layer. Thus, the as-prepared organic-inorganic hybrid microcapsules acquire much higher mechanical stability and surface reactivity than pure titania or pure silica microcapsules. Furthermore, protamine/silica/polydopamine hybrid microcapsules display superior mechanical stability to protamine/silica/polydopamine hybrid microcapsules because of the formation of Ti(IV)-catechol coordination complex between the biomineral layer and the bioadhesive layer. As an example of application, three enzymes are respectively immobilized through physical encapsulation in the lumen, in situ entrapment within the wall and chemical attachment on the out surface of the hybrid microcapsules. The as-constructed multienzyme system displays higher catalytic activity and operational stability. Hopefully, the approach developed in this study will evolve as a generic platform for facile and controllable preparation of organic-inorganic hybrid materials with different compositions and shapes for a variety of applications in catalysis, sensor, drug/gene delivery. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | ELECTRON-TRANSFER ; POLYELECTROLYTE MICROCAPSULES ; ENZYME IMMOBILIZATION ; POLYMER CAPSULES ; MUSSEL ADHESIVE ; SILICA ; ENCAPSULATION ; PROTAMINE ; SURFACE ; NANOPARTICLES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000287639400068 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6339]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Tianjin Univ, Key Lab Green Technol, Minist Educ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Hebei Univ Technol, Sch Chem Engn, Dept Bioengn, Tianjin 300130, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lei,Shi, Jiafu,Jiang, Zhongyi,et al. Facile Preparation of Robust Microcapsules by Manipulating Metal-Coordination Interaction between Biomineral Layer and Bioadhesive Layer[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(2):597-605. |
| APA | Zhang, Lei.,Shi, Jiafu.,Jiang, Zhongyi.,Jiang, Yanjun.,Meng, Ruijie.,...&Zheng, Yang.(2011).Facile Preparation of Robust Microcapsules by Manipulating Metal-Coordination Interaction between Biomineral Layer and Bioadhesive Layer.ACS APPLIED MATERIALS & INTERFACES,3(2),597-605. |
| MLA | Zhang, Lei,et al."Facile Preparation of Robust Microcapsules by Manipulating Metal-Coordination Interaction between Biomineral Layer and Bioadhesive Layer".ACS APPLIED MATERIALS & INTERFACES 3.2(2011):597-605. |
入库方式： OAI收割
来源：过程工程研究所
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