Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability
© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim An approach to transforming amorphous organic networks into crystalline covalent organic frameworks (COFs) with retention of the colloidal nanosize and uniform morphology is presented. Specifically, Fe 3 O 4 nanoclusters are encapsulated by a...
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th-cmuir.6653943832-413572017-09-28T04:20:51Z Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability Tan J. Namuangruk S. Kong W. Kungwan N. Guo J. Wang C. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim An approach to transforming amorphous organic networks into crystalline covalent organic frameworks (COFs) with retention of the colloidal nanosize and uniform morphology is presented. Specifically, Fe 3 O 4 nanoclusters are encapsulated by a disordering polyimine network via the Schiff-base reaction. The formed imine bonds could be reconstructed under thermodynamic control to reform the polyimine networks into imine-linked COFs in situ. Such a core–shell microsphere exhibits the uniform size and spherical shape, controllable COF shell thickness, accessible surface modification, and improved solution dispersibility as well as maintenance of high surface area, periodic micropores, and superior magnetic responsiveness. Additionally, the photothermal conversion effect is demonstrated for the first time on the nanoCOF layers upon exposure to near infrared light, providing convincing evidence for potential use in phototherapy. 2017-09-28T04:20:51Z 2017-09-28T04:20:51Z 2016-11-02 Journal 14337851 2-s2.0-84990862131 10.1002/anie.201606155 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84990862131&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/41357 |
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© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim An approach to transforming amorphous organic networks into crystalline covalent organic frameworks (COFs) with retention of the colloidal nanosize and uniform morphology is presented. Specifically, Fe 3 O 4 nanoclusters are encapsulated by a disordering polyimine network via the Schiff-base reaction. The formed imine bonds could be reconstructed under thermodynamic control to reform the polyimine networks into imine-linked COFs in situ. Such a core–shell microsphere exhibits the uniform size and spherical shape, controllable COF shell thickness, accessible surface modification, and improved solution dispersibility as well as maintenance of high surface area, periodic micropores, and superior magnetic responsiveness. Additionally, the photothermal conversion effect is demonstrated for the first time on the nanoCOF layers upon exposure to near infrared light, providing convincing evidence for potential use in phototherapy. |
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Journal |
author |
Tan J. Namuangruk S. Kong W. Kungwan N. Guo J. Wang C. |
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Tan J. Namuangruk S. Kong W. Kungwan N. Guo J. Wang C. Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
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Tan J. Namuangruk S. Kong W. Kungwan N. Guo J. Wang C. |
author_sort |
Tan J. |
title |
Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
title_short |
Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
title_full |
Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
title_fullStr |
Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
title_full_unstemmed |
Manipulation of Amorphous-to-Crystalline Transformation: Towards the Construction of Covalent Organic Framework Hybrid Microspheres with NIR Photothermal Conversion Ability |
title_sort |
manipulation of amorphous-to-crystalline transformation: towards the construction of covalent organic framework hybrid microspheres with nir photothermal conversion ability |
publishDate |
2017 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84990862131&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/41357 |
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1681421987195387904 |