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The chemical structure of the polymeric sensor was characterized by FT\u2010IR and <jats:sup>1<\/jats:sup>H NMR spectroscopy. The apparent viscosity average molecular weight M<jats:sub>\u03b7<\/jats:sub> of poly(acrylamide\u2013acrylic acid) [poly(AM\u2013NaAA)] and the water\u2010soluble polymeric chemosensor poly(AM\u2013NaAA\u2013GR6GH) were 1.76 \u00d7 10<jats:sup>6<\/jats:sup> and 6.84 \u00d7 10<jats:sup>4<\/jats:sup> g\/mol, respectively. Because of its amphiphilic property, the water\u2010soluble polymeric chemosensor can be used as a chemosensor in aqueous media. Upon addition of Hg<jats:sup>2+<\/jats:sup> ions to an aqueous solution of poly(AM\u2013NaAA\u2013GR6GH), fluorescence enhancements were observed instantly. Moreover, other metal ions did not induce obvious changes to the fluorescence spectra. This approach may provide an easily measurable and inherently sensitive method for Hg<jats:sup>2+<\/jats:sup> ion detection in environmental and biological applications. Copyright \u00a9 2015 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/bio.2890","type":"journal-article","created":{"date-parts":[[2015,3,24]],"date-time":"2015-03-24T14:03:28Z","timestamp":1427205808000},"page":"1263-1268","source":"Crossref","is-referenced-by-count":12,"title":["Water\u2010soluble polymeric chemosensor for selective detection of Hg<sup>2+<\/sup> in aqueous solution using rhodamine\u2010based modified poly(acrylamide\u2013acrylic acid)"],"prefix":"10.1002","volume":"30","author":[{"given":"Tong\u2010Mou","family":"Geng","sequence":"first","affiliation":[{"name":"Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering Anqing Normal University  Anqing 246011 People's Republic of China"},{"name":"Collaborative Innovation Center for Petrochemical New Materials  Anqing Anhui 246011 People's Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Da\u2010Yu","family":"Wu","sequence":"additional","affiliation":[{"name":"Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering Anqing Normal University  Anqing 246011 People's Republic of China"},{"name":"Institute of Petrochemical Technology Changzhou University  Changzhou 213164 People's Republic of 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