A Cuboctahedral Supramolecular Capsule by 4:4 Self-Assembly of Tris(ZnII-cyclen) and Trianionic Trithiocyanurate in Aqueous Solution at Neutral pH (Cyclen=1,4,7,10-Tetraazacyclododecane)

Aoki, Shin; Shiro, Motoo; Kimura, Eiichi

doi:10.1002/1521-3765(20020215)8:4<929::aid-chem929>3.0.co;2-q

Cited by 71 publications

(21 citation statements)

References 131 publications

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“…Ein gutes Beispiel für den zweiten Extremfall ( η 1 =120°, η 2 =33.6°) ist in Abbildung 20 gezeigt 36. Die erste der beiden SBUs, die Trithiocyanurat‐Einheit, weist einen η 1 ‐Winkel von 120° auf (Abbildung 20 a).…”

Section: Heterokubische Moleküleunclassified

Native electrophoretic techniques to identify protein–protein interactions

Wittig

Schägger

2009

Proteomics

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Permanent protein-protein interactions are commonly identified by co-purification of two or more protein components using techniques like co-immunoprecipitation, tandem affinity purification and native electrophoresis. Here we focus on blue-native electrophoresis, clear-native electrophoresis, high-resolution clear-native electrophoresis and associated techniques to identify stable membrane protein complexes and detergent-labile physiological supercomplexes. Hints for dynamic protein-protein interactions can be obtained using two-hybrid techniques but not from native electrophoresis and other protein isolation techniques except after covalent cross-linking of interacting proteins in vivo prior to protein separation.

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Section: Heterokubische Moleküleunclassified

Native electrophoretic techniques to identify protein–protein interactions

Wittig

Schägger

2009

Proteomics

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“…Apart from that, the complexation between 2,4-DNP and the βCD molecule was also influenced by the molecular structure and hydrophobicity of the 2,4-DNP compound [ 35 ]. In this study, 2,4-DNP had loss of hydrophobicity at high concentration and it was unable to form a stable complex with the cavity of βCD, causing a reduction in the adsorption capacity for both polymers.…”

Section: Resultsmentioning

confidence: 99%

β-Cyclodextrin conjugated bifunctional isocyanate linker polymer for enhanced removal of 2,4-dinitrophenol from environmental waters

et al. 2018

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In this work, we reported the synthesis, characterization and adsorption study of two β-cyclodextrin (βCD) cross-linked polymers using aromatic linker 2,4-toluene diisocyanate (2,4-TDI) and aliphatic linker 1,6-hexamethylene diisocyanate (1,6-HDI) to form insoluble βCD-TDI and βCD-HDI. The adsorption of 2,4-dinitrophenol (DNP) on both polymers as an adsorbent was studied in batch adsorption experiments. Both polymers were well characterized using various tools that include Fourier transform infrared spectroscopy, thermogravimetric analysis, Brunauer–Emmett–Teller analysis and scanning electron microscopy, and the results obtained were compared with the native βCD. The adsorption isotherm of 2,4-DNP onto polymers was studied. It showed that the Freundlich isotherm is a better fit for βCD-TDI, while the Langmuir isotherm is a better fit for βCD-HMDI. The pseudo-second-order kinetic model represented the adsorption process for both of the polymers. The thermodynamic study showed that βCD-TDI polymer was more favourable towards 2,4-DNP when compared with βCD-HDI polymer. Under optimized conditions, both βCD polymers were successfully applied on various environmental water samples for the removal of 2,4-DNP. βCD-TDI polymer showed enhanced sorption capacity and higher removal efficiency (greater than 80%) than βCD-HDI (greater than 70%) towards 2,4-DNP. The mechanism involved was discussed, and the effects of cross-linkers on βCD open up new perspectives for the removal of toxic contaminants from a body of water.

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“…The interactions of the trinuclear complexes with the circular and linear forms of p -Bluescript DNA show reduced ethidium bromide fluorescence on gel electrophoresis. Some very interesting polynuclear zinc complexes with macrocyclic ligands and ttc 3− were studied by Aoki et al [28,29,30]. The (Zn 4 (L 4 ) 3 (ttc) 4 ) 12+ complex (L = cyclen = 1,4,7,10-tetraazacyclododecane), with a trigonal prism configuration is very stable in aqueous solution at neutral pH.…”

Section: Introductionmentioning

confidence: 99%

Biological Activity and Molecular Structures of Bis(benzimidazole) and Trithiocyanurate Complexes

et al. 2015

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1-(1H-Benzimidazol-2-yl)-N-(1H-benzimidazol-2-ylmethyl)methanamine (abb) and 2-(1H-benzimidazol-2-ylmethylsulfanylmethyl)-1H-benzimidazole (tbb) have been prepared and characterized by elemental analysis. These bis(benzimidazoles) have been further used in combination with trithiocyanuric acid for the preparation of complexes. The crystal and molecular structures of two of them have been solved. Each nickel atom in the structure of trinuclear complex [Ni3(abb)3(H2O)3(μ-ttc)](ClO4)3·3H2O·EtOH (1), where ttcH3 = trithiocyanuric acid, is coordinated with three N atoms of abb, the N,S donor set of ttc anion and an oxygen of a water molecule. The crystal of [(tbbH2)(ttcH2)2(ttcH3)(H2O)] (2) is composed of a protonated bis(benzimidazole), two ttcH2 anions, ttcH3 and water. The OPEN ACCESSMolecules 2015, 20 10361 structure is stabilized by a network of hydrogen bonds. These compounds were primarily synthesized for their potential antimicrobial activity and hence their possible use in the treatment of infections caused by bacteria or yeasts (fungi). The antimicrobial and antifungal activity of the prepared compounds have been evaluated on a wide spectrum of bacterial and yeast strains and clinical specimens isolated from patients with infectious wounds and the best antimicrobial properties were observed in strains after the use of ligand abb and complex 1, when at least 80% growth inhibition was achieved.

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A Cuboctahedral Supramolecular Capsule by 4:4 Self-Assembly of Tris(ZnII-cyclen) and Trianionic Trithiocyanurate in Aqueous Solution at Neutral pH (Cyclen=1,4,7,10-Tetraazacyclododecane)

Cited by 71 publications

References 131 publications

Native electrophoretic techniques to identify protein–protein interactions

Native electrophoretic techniques to identify protein–protein interactions

β-Cyclodextrin conjugated bifunctional isocyanate linker polymer for enhanced removal of 2,4-dinitrophenol from environmental waters

Biological Activity and Molecular Structures of Bis(benzimidazole) and Trithiocyanurate Complexes

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