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Stepwise control of host–guest interaction using a coordination polymer gel

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  • Rahul Dev Mukhopadhyay

    (CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST))

  • Gourab Das

    (CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST))

  • Ayyappanpillai Ajayaghosh

    (CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST))

Abstract

Precise control of host–guest interaction as seen in biological processes is difficult to achieve with artificial systems. Herein we have exploited the thermodynamic benefits of a system in equilibrium to achieve controlled stepwise release and capture of cyclodextrin (guest) using a coordination polymer (Mg-CP) as the host and temperature as the stimulus. Since temperature is not a precision stimulus for artificial host–guest interaction, the present system is a distinct prototype that manifests temperature-controlled natural host–guest interaction. The described coordination polymeric host system, when incorporated into a hydrogel matrix, provides a microenvironment that facilitates the stepwise release of α-CD in response to temperature variation within a quasi-solid state. The work demonstrated here may pave the way towards thermally controlled delivery and monitoring of otherwise spectroscopically silent molecules such as cyclodextrins.

Suggested Citation

  • Rahul Dev Mukhopadhyay & Gourab Das & Ayyappanpillai Ajayaghosh, 2018. "Stepwise control of host–guest interaction using a coordination polymer gel," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04303-8
    DOI: 10.1038/s41467-018-04303-8
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