title: Preparation and application of a novel electrochemical sensing material based on surface chemistry of polyhydroquinone.
abstract: A new analogue of polydopamine (PDA), i.e., polyhydroquinone (PH2Q), was polymerized and its surface chemistry was studied by different ways of characterization. PH2Q was produced by the self-polymerization of H2Q mediated by dissolved oxygen, and the self-polymerization process was strongly dependent on the type and the pH value of the buffer solutions. PH2Q can not only achieve surface hydrophilization of different substrates like polyethylene terephthalate (PET) film, graphite strip, C12SH/Au and wax slice, but also possess several unique properties like reversible adsorption, good solubility and low cost. These properties made PH2Q an ideal polymeric modifier for the noncovalent functionalization of some nanomaterials. By simply grinding with PH2Q, pristine multi-walled carbon nanotubes (MWNTs) can be readily dispersed in water with high solubility and good stability. The resulting MWNT-PH2Q composite exhibited excellent electrochemical performance, which was employed for the simultaneous determination of dopamine (DA) and uric acid (UA).
authors.affiliation: Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 10080, PR China.
authors.forename: Xueping
authors.initials: X
authors.lastname: Dang
authors.affiliation: Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
authors.forename: Yingkai
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 10080, PR China. Electronic address: cghu@whu.edu.cn.
authors.forename: Chengguo
authors.initials: C
authors.lastname: Hu
authors.affiliation: Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
authors.forename: Jianlin
authors.initials: J
authors.lastname: Huang
authors.affiliation: Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
authors.forename: Huaixia
authors.initials: H
authors.lastname: Chen
authors.affiliation: Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
authors.forename: Shengfu
authors.initials: S
authors.lastname: Wang
authors.affiliation: Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 10080, PR China. Electronic address: sshu@whu.edu.cn.
authors.forename: Shengshui
authors.initials: S
authors.lastname: Hu
mesh_terms: D000327:Adsorption; D004298:Dopamine / Q000032:analysis; D055664:Electrochemical Techniques; D006108:Graphite / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D007211:Indoles / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D013499:Surface Properties; D014527:Uric Acid / Q000032:analysis; D014867:Water / Q000737:chemistry
chemical_list: D007211:Indoles; D037742:Nanotubes, Carbon; D011108:Polymers; C568283:polydopamine; D014867:Water; D014527:Uric Acid; D006108:Graphite; D004298:Dopamine
keywords: Hydrophilicity; Hydroquinone; Multiwalled carbon nanotubes (MWNTs); Self-polymerization; Surface chemistry