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Issue 11, 2018
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UV and pH-responsive supra-amphiphiles driven by combined interactions for controlled self-assembly behaviors

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Abstract

In order to fabricate a novel supra-amphiphile with multiple stimulus properties, we developed the strategy of introducing a bi-functional linker to bridge the hydrophilic and hydrophobic building blocks together, by utilizing more than one kind of interaction. We characterized the assembled structure and morphology of the supra-amphiphile using transmission electron microscopy (TEM), dynamic light scattering (DLS) and X-ray diffraction (XRD). 1H NMR and UV-vis spectroscopy studies revealed that the amphiphile was constructed by the effect of host–guest recognition and a dynamic covalent bond, which could be switched ‘‘on’’ and ‘‘off’’ via UV irradiation and pH variation stimuli, respectively. This responsiveness realized finely controllable self-assembly behaviors of the supra-amphiphile, which was thus able to encapsulate and release the drug model rhodamine B.

Graphical abstract: UV and pH-responsive supra-amphiphiles driven by combined interactions for controlled self-assembly behaviors

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Publication details

The article was received on 16 Jan 2018, accepted on 20 Feb 2018 and first published on 24 Feb 2018


Article type: Paper
DOI: 10.1039/C8SM00118A
Citation: Soft Matter, 2018,14, 2112-2117
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    UV and pH-responsive supra-amphiphiles driven by combined interactions for controlled self-assembly behaviors

    S. Li, A. Hao, J. Shen, N. Shang and C. Wang, Soft Matter, 2018, 14, 2112
    DOI: 10.1039/C8SM00118A

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