Journal
SOFT MATTER
Volume 7, Issue 18, Pages 8207-8215Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1sm05672g
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Funding
- Department of Science and Technology, New Delhi
- Council of Scientific and Industrial Research (CSIR)
- Jawaharlal Nehru Center for Advanced Scientific Research (JNCASR), Bangalore
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The present work combines two rapidly growing research areas-functional supramolecular gels and lanthanide based hybrid materials. Facile hydrogel formation from several lanthanide(III) cholates has been demonstrated. The morphological and mechanical properties of these cholate gels were investigated by TEM and rheology. The hydrogel matrix was subsequently utilized for the sensitization of Tb(III) by doping a non-coordinating chromophore, 2,3-dihydroxynaphthalene (DHN), at micromolar concentrations. In the mixed gels of Tb(III)-Eu(III), an energy transfer pathway was found to operate from Tb(III) to Eu(III) and by utilizing this energy transfer, tunable multiple-color luminescent hydrogels were obtained. The emissive properties of the hydrogels were also retained in the xerogels and their suspensions in n-hexane were used for making luminescent coating on glass surface.
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