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Cécile Clavaud et al.
Metallomics : integrated biometal science, 4(2), 179-187 (2012-01-26)
The dynamic combinatorial assembly of libraries of modular cyclophilin hCyp18 oxorhenium inhibitors of general formula [A˙ReO˙B] was accelerated by addition of increasing concentrations of hCyp18 ('Cyclophilin Enhancing Effect', CEE). This result suggested that modules assembly might proceed through an in
Supriti Sen et al.
The Analyst, 136(22), 4839-4845 (2011-10-06)
A novel 6-(2-pyridinyl)-5,6-dihydrobenzimidazo[1,2-c]quinazoline (HL) serves as a first-time highly selective and sensitive ratiometric fluorescent chemosensor probe for oxorhenium (ReO(V)) ion in acetonitrile : water = 9 : 1 (v/v) at 25 °C. The decrease in fluorescence at 410 nm and
Anthony Yoboué et al.
Chemical communications (Cambridge, England), 47(14), 4285-4287 (2011-03-03)
Heterogeneous Re/SiO(2) catalysts prepared using a one pot sol-gel synthesis were found to display high activity in the direct, selective methanol conversion to methylal, which is correlated to an unprecedented rhenium oxide structure.
Albert Schröckeneder et al.
Inorganic chemistry, 48(24), 11608-11614 (2009-11-27)
Rhenium(V) oxo complexes of the type [ReOX(L)(2)] (1-7; X = Cl, Br) containing beta-ketiminate ligands (L = CH(3)C(O)CH(2)C(NAr)CH(3): Ar = Ph (APOH), 2-MePh (MPOH), 2,6-Me(2)Ph (DPOH), 2,6-(i)Pr(2)Ph (DiPOH)) have been prepared by reaction of [ReOX(3)(OPPh(3))(SMe(2))] (X = Cl, Br) with
Camille Boucher-Jacobs et al.
ChemSusChem, 6(4), 597-599 (2013-03-28)
Top shelf dehydration: Ammonium perrhenate catalysts combined with benzylic alcohol reductants are used for the efficient deoxydehydration of glycols to olefins. The olefin and aldehyde products can be easily separated and isolated. It is also demonstrated that the catalyst can
Cameron A Lippert et al.
Journal of the American Chemical Society, 132(11), 3879-3892 (2010-03-03)
Five-coordinate oxorhenium(V) anions with redox-active catecholate and amidophenolate ligands are shown to effect clean bimetallic cleavage of O(2) to give dioxorhenium(VII) products. A structural homologue with redox-inert oxalate ligands does not react with O(2). Redox-active ligands lower the kinetic barrier
M-S Miao et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 24(21), 215503-215503 (2012-05-01)
Despite the wide-ranging applications of binary Rh and Ir oxides, their stability and trends in Rh and Ir oxidation states are not fully understood. Using first-principles electronic structure calculations, we demonstrate that the origin of the categorical stability of Ir(4+)
Mark J Bailey et al.
Advanced healthcare materials, 1(4), 437-442 (2012-11-28)
Configuring RE(2) O(3) nanocrystals with pseudo-2D morphologies confers substantive gains in relaxivities over equivalent spherical counterparts. The most promising arises from Gd(2) O(3) whose ionic transverse and longitudinal relaxivities were as high as r(1) = 12.7 mM(-1) s(-1) and r(2)
Martin Steinborn et al.
Dalton transactions (Cambridge, England : 2003), 42(16), 5749-5754 (2013-03-02)
Sugar phosphates provide metal-binding sites both at their sugar core and at their phosphate group(s). Mixed sugar-core-phosphate chelation has been considered as a typical bonding mode within the physiological pH range for the central metabolite D-fructose 1,6-bisphosphate. The Re(V)O(tmen) metal
Jong Kwon Choe et al.
Environmental science & technology, 44(12), 4716-4721 (2010-05-21)
Recent work demonstrates reduction of aqueous perchlorate by hydrogen at ambient temperatures and pressures using a novel rhenium-palladium bimetal catalyst immobilized on activated carbon (Re/Pd-AC). This study examines the influence of Re speciation on catalyst activity and stability. Rates of
J Tyler French et al.
Journal of vascular and interventional radiology : JVIR, 21(8), 1271-1279 (2010-05-19)
Minimally invasive interventional cancer therapy with drug-carrying lipid nanoparticles (ie, liposomes) via convection-enhanced delivery by an infusion pump can increase intratumoral drug concentration and retention while facilitating broad distribution throughout solid tumors. The authors investigated the utility of liposome-carrying beta-emitting
Michael J Booth et al.
Science (New York, N.Y.), 336(6083), 934-937 (2012-04-28)
5-Methylcytosine can be converted to 5-hydroxymethylcytosine (5hmC) in mammalian DNA by the ten-eleven translocation (TET) enzymes. We introduce oxidative bisulfite sequencing (oxBS-Seq), the first method for quantitative mapping of 5hmC in genomic DNA at single-nucleotide resolution. Selective chemical oxidation of
Spradau, T.W. Katzenellenbogen, J.A.
Organometallics, 17, 2009-2009 (1998)
Grigory V Kolesnikov et al.
Organic & biomolecular chemistry, 9(21), 7358-7364 (2011-09-07)
The design and synthesis of a neutral macrocyclic host that is capable of perrhenate and pertechnetate recognition is described. The anion affinities and underlying coordination modes were estimated by several experimental and theoretical methods including a new technique--reverse (99)Tc NMR
Julie Di Bernardo et al.
Analytical biochemistry, 415(1), 32-38 (2011-05-07)
The sodium/iodide symporter (NIS) is primarily responsible for iodide accumulation in the thyroid gland for the synthesis of thyroid hormones; however, it can also transport other lyotropic anions in the thyroid gland and nonthyroid tissues. Some NIS substrates have important
Yasushi Amada et al.
ChemSusChem, 5(10), 1991-1999 (2012-08-07)
The hydrogenolysis of erythritol using an Ir-ReO(x)/SiO(2) catalyst was performed for the production of butanediols, which are widely used as a raw material of polymers. The activity and selectivity to butanediols on Ir-ReO(x)/SiO(2) was much higher than that on conventional
New sequencing technique produces high-resolution map of 5-hydroxymethylcytosine.
Jonathan Wilkinson
Epigenomics, 4(3), 249-249 (2012-08-10)
David P Cormode et al.
Dalton transactions (Cambridge, England : 2003), 39(28), 6532-6541 (2010-06-17)
A disulfide functionalized bis-ferrocene urea acyclic receptor and disulfide functionalized mono- and bis-ferrocene amide and urea appended upper rim calix[4]arene receptors were prepared for the fabrication of SAM redox-active anion sensors. 1H NMR and diffusive voltammetric anion recognition investigations revealed
Julien Le Gal et al.
Journal of inorganic biochemistry, 105(6), 880-886 (2011-04-23)
Assembly of independent chemical modules through oxorhenium coordination by a NS(2)+S chelation motif was applied to the synthesis of RGD (Arg-Gly-Asp) analogs. Modules were assembled through oxorhenium chelation to give a series of 18 metal complexes in good yields and
Rui Cao et al.
Inorganic chemistry, 50(19), 9499-9507 (2011-08-30)
We describe a multidentate tripodal ligand in which three pendant arms carrying di(2-picolyl)amine units are linked to the ortho positions of a tris(o-xylyl) scaffold, providing N(CH(2)-o-C(6)H(4)CH(2)N(CH(2)py)(2))(3) (L). Reaction of L with CuCl(2) in the presence of hexafluorophosphate anion afforded blue
Marie Aufort et al.
Chembiochem : a European journal of chemical biology, 12(4), 583-592 (2011-02-10)
The parallel oxorhenium-mediated assembly of 288 noncyclic RGD analogues is reported. All complexes contain a NS(2) +S chelating motif that enables the unambiguous coordination of the oxorhenium and oxotechnetium cores. In this study, "modules S" contain a variety of pending
Amanda J Weeks et al.
Nuclear medicine communications, 32(2), 98-105 (2010-11-19)
Accumulation of iodide and other substrates via the human sodium/iodide symporter (hNIS) is fundamental to imaging and therapy of thyroid disease, hNIS reporter gene imaging and hNIS-mediated gene therapy. There is no readily available positron emission tomography (PET) tracer for
Sandra Dorbes et al.
European journal of medicinal chemistry, 45(2), 423-429 (2009-10-27)
The goal of this study is to design new (99m)Tc-radiolabelled shortened CCK derivatives that might be suitable for the molecular imaging of cholecystokinin-2 receptors (CCK2-R), these receptors being over-expressed in a number of neuroendocrine tumors such as medullary thyroid cancer
Olesya A Nikonova et al.
Langmuir : the ACS journal of surfaces and colloids, 27(18), 11622-11628 (2011-08-13)
The use of an inorganic perrhenate ligand in the structure of early-transition-metal alkoxide precursors permits to achieve uniform self-assembly of the primary nanoparticles produced by their hydrolysis. The latter has been carried out in a hydrocarbon reaction medium by the
Baikuntha P Aryal et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 17(1), 97-106 (2011-08-24)
Radiolabeled biomolecules are routinely used for clinical diagnostics. (99m)Tc is the most commonly used radioactive tracer in radiopharmaceuticals. (188)Re and (186)Re are also commonly used as radioactive tracers in medicine. However, currently available methods for radiolabeling are lengthy and involve
Marie Aufort et al.
European journal of medicinal chemistry, 46(5), 1779-1788 (2011-03-12)
A library of RGD tripeptide analogs cyclized through oxorhenium coordination by an NS2/S chelation motif was synthesized. Screening towards integrins αVβ3, αIIbβ3 and αVβ5 led to the identification of 6 oxorhenium complexes that bind to integrin αVβ3 in the submicromolar
Yuee Feng et al.
Inorganic chemistry, 48(23), 11058-11066 (2009-11-06)
The detailed syntheses of complexes of the form [Re(O)(X)(RNCH(2)CH(2))(2)N(Me)] (X = Me, Cl, I, R = mesityl, C(6)F(5)), 1-3, incorporating diamidoamine ancillary ligands are described. X-ray crystal structures for the complexes [Re(O)(Me)((C(6)F(5))NCH(2)CH(2))(2)N(Me)], 1a, [Re(O)(I)((C(6)F(5))N CH(2)CH(2))(2)N(Me)], 3a, and [Re(O)(I)((Mes)NCH(2))(2)N(Me)], 3b, are
Guo-Cang Wang et al.
Inorganic chemistry, 52(5), 2556-2563 (2013-02-15)
Heterometallic cerium(IV) perrhenate, permanganate, and molybdate complexes containing the imidodiphosphinate ligand [N(i-Pr2PO)2](-) have been synthesized, and their reactivity was investigated. Treatment of Ce[N(i-Pr2PO)2]3Cl (1) with AgMO4 (M = Re, Mn) afforded Ce[N(i-Pr2PO)2]3(ReO4) (2) or Ce2[N(i-Pr2PO)2]6(MnO4)2 (3). In the solid state
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