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ZnO Nanowire Arrays on 3D Hierachical Graphene Foam: Biomarker Detection of Parkinson’s Disease
Yue, Hong Yan,Huang, Shuo,Chang, Jian,Heo, Chaejeong,Yao, Fei,Adhikari, Subash,Gunes, Fethullah,Liu, Li Chun,Lee, Tae Hoon,Oh, Eung Seok,Li, Bing,Zhang, Jian Jiao,Huy, Ta Quang,Luan, Nguyen Van,Lee, Y American Chemical Society 2014 ACS NANO Vol.8 No.2
<P>We report that vertically aligned ZnO nanowire arrays (ZnO NWAs) were fabricated on 3D graphene foam (GF) and used to selectively detect uric acid (UA), dopamine (DA), and ascorbic acid (AA) by a differential pulse voltammetry method. The optimized ZnO NWA/GF electrode provided a high surface area and high selectivity with a detection limit of 1 nM for UA and DA. The high selectivity in the oxidation potential was explained by the gap difference between the lowest unoccupied and highest occupied molecular orbitals of a biomolecule for a set of given electrodes. This method was further used to detect UA levels in the serum of patients with Parkinson’s disease (PD). The UA level was 25% lower in PD patients than in healthy individuals. This finding strongly implies that UA can be used as a biomarker for PD.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2014/ancac3.2014.8.issue-2/nn405961p/production/images/medium/nn-2013-05961p_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn405961p'>ACS Electronic Supporting Info</A></P>
Hydrothermal Synthesis, Crystal Structure of Four Novel Complexes Based on Thiabendazole Ligand
Shui-Qiang Wei,Cui-Wu Lin,Xian-Hong Yin,Yue-Jiao Huang,Pei-Qi Luo 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.9
Four novel metal–organic complexes [Cd2(IP)2(TBZ)2(H2O)2]·(H2O) (1), [Zn4(IP)4(TBZ)4]·2(H2O) (2), [Zn2(BTC)(TBZ)2(CO2H)] (3), [Co(PDC)(TBZ)] (4) (where IP = isophthalate; TBZ = thiabendazole; BTC = 1,3,5-benzenetricarboxylate; PDC = pyridine-3,4-dicarboxylate) have been prepared and characterized by IR spectrum, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. X-ray structure analysis reveals that 1, 2, and 3 are one-dimensional chain polymers, while 4 is a two-dimensional network polymer. The TBZ acts as a typical chelating ligand coordinated to the metal center in all complexes. The 1D chain architecture of 1 is constructed from isophthalates and cadmium atoms. A simultaneous presence of chelating, monodentate and bidentate coordination modes of IP ligands is observed in complex 2. In complex 3, the 16-membered rings are alternately arranged forming an infinite 1D double-chain structure. The 2D skeleton of 4 is formed by cobalt ions as nodes and PDC dianions as spacers, through coordination bonds. The hydrogen bonds and π-π stacking play important roles in affecting the final structure where complexes 1 and 3 have 2D supramolecular networks, while complexes 2 and 4 have 3D supramolecular architectures.
Hydrothermal Synthesis, Crystal Structure of Four Novel Complexes Based on Thiabendazole Ligand
Wei, Shui-Qiang,Lin, Cui-Wu,Yin, Xian-Hong,Huang, Yue-Jiao,Luo, Pei-Qi Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.9
Four novel metal-organic complexes $[Cd_2(IP)_2(TBZ)_2(H_2O)_2]{\cdot}(H_2O)$ (1), $[Zn_4(IP)_4(TBZ)_4]{\cdot}2(H_2O)$ (2), $[Zn_2(BTC)(TBZ)_2(CO_2H)]$ (3), [Co(PDC)(TBZ)] (4) (where IP = isophthalate; TBZ = thiabendazole; BTC = 1,3,5-benzenetricarboxylate; PDC = pyridine-3,4-dicarboxylate) have been prepared and characterized by IR spectrum, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. X-ray structure analysis reveals that 1, 2, and 3 are one-dimensional chain polymers, while 4 is a two-dimensional network polymer. The TBZ acts as a typical chelating ligand coordinated to the metal center in all complexes. The 1D chain architecture of 1 is constructed from isophthalates and cadmium atoms. A simultaneous presence of chelating, monodentate and bidentate coordination modes of IP ligands is observed in complex 2. In complex 3, the 16-membered rings are alternately arranged forming an infinite 1D double-chain structure. The 2D skeleton of 4 is formed by cobalt ions as nodes and PDC dianions as spacers, through coordination bonds. The hydrogen bonds and ${\pi}-{\pi}$ stacking play important roles in affecting the final structure where complexes 1 and 3 have 2D supramolecular networks, while complexes 2 and 4 have 3D supramolecular architectures.