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Pressure-responsive AuNPs/Polyacrylamide Nanocomposite Hydrogel with Highly Stable and Tunable Electrochemiluminescence Performances |
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| Authors: | Qunfang Xie Yingzhou Tao Ying Zhang Haiyan Cui Zhenyu Lin |
| Institution: | 1. Department of Cadre's Ward, Central Laboratory, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005 China
These authors contributed equally to this work.;2. Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116 China These authors contributed equally to this work.;3. Department of Cadre's Ward, Central Laboratory, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005 China;4. Department of Plastic Surgery Tongji Hospital of Tongji University, Putuo District, Shanghai, 200065 China;5. Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116 China |
| Abstract: | Synergistically taking the advantage of distinctive porous matrix, luminophore and functional nanoparticles, we prepared functional nanocomposite hydrogel combining the hydrophilic three-dimensional network of hydrogels as matrix for the adsorption of luminophore, Ru(bpy)32+, and in situ grown gold nanoparticles (AuNPs) as the conductive. Interestingly, the designed nanocomposite hydrogel shows external pressure resposnsive properties, which precisely tune the distance between the AuNPs becomes shorter, resulting in a remarkable amplification of electrochemiluminescence (ECL) signals. Additionally, differing from the poor stability of conventional ECL, uniform dispersion of the Ru(bpy)32+ over nanocomposite hydrogel significantly enhanced the long term stability of ECL. |
| Keywords: | Nanocomposite hydrogel Gold nanoparticles Pressure responsive Electrochemiluminescence |