0000000000121533
AUTHOR
Evamarie Hey-hawkins
showing 9 related works from this author
Polynuclear copper(II) complexes with hexadentate Schiff base directed by the counter ion. Syntheses, crystal structures and magnetic properties
2018
Abstract Four new complexes, [Cu 9 L 6 ( µ 3 -ClO 4 ) 2 ](ClO 4 ) 4 ·4CHCl 3 1 , [Cu 3 L 2 (H 2 O) 2 ](ClO 4 ) 2 ·3H 2 O 2 , [Cu 6 L 4 (N 3 ) 2 ](ClO 4 ) 2 3 and [Cu 2 L(CH 3 COO) 2 ] 4 , where H 2 L stands for the Schiff base N , N ′-bis[(2-hydroxybenzilideneamino)-propyl]-piperazine, were obtained and structurally characterized. Compounds 1 , 2 and 3 contain the Cu 3 L 2 2+ entities in which L 2− acts in an unsymmetrical mode with N 3 O donor set wrapped around marginal copper(II) and with the remained NO sets bound to the central copper ion. The marginal copper(II) ions are in distorted square pyramidal environment, whereas that of the central one is square planar. In 1 , the peripheral …
3D Printed Palladium Catalyst for Suzuki-Miyaura Cross-coupling Reactions
2020
Selective laser sintering (SLS) 3d printing was utilized to manufacture a solid catalyst for Suzuki-Miyaura cross-coupling reactions from polypropylene as a base material and palladium nanoparticles on silica (SilicaCat Pd(0)R815-100 by SiliCycle) as the catalytically active additive. The 3d printed catalyst showed similar activity to that of the pristine powdery commercial catalyst, but with improved practical recoverability and reduced leaching of palladium into solution. Recycling of the printed catalyst led to increase of the induction period of the reactions, attributed to the pseudo-homogeneous catalysis. The reaction is initiated by oxidative addition of aryl iodide to palladium nano…
Selective Laser Sintering of Metal-Organic Frameworks: Production of Highly Porous Filters by 3D Printing onto a Polymeric Matrix.
2019
Metal‐organic frameworks (MOFs) have raised a lot of interest, especially as adsorbing materials, because of their unique and well‐defined pore structures. One of the main challenges in the utilization of MOFs is their crystalline and powdery nature, which makes their use inconvenient in practice. Three‐dimensional printing has been suggested as a potential solution to overcome this problem. We used selective laser sintering (SLS) to print highly porous flow‐through filters containing the MOF copper(II) benzene‐1,3,5‐tricarboxylate (HKUST‐1). These filters were printed simply by mixing HKUST‐1 with an easily printable nylon‐12 polymer matrix. By using the SLS, powdery particles were fused t…
Receptor-mediated uptake of boron-rich neuropeptide y analogues for boron neutron capture therapy.
2014
Peptidic ligands selectively targeting distinct G protein-coupled receptors that are highly expressed in tumor tissue represent a promising approach in drug delivery. Receptor-preferring analogues of neuropeptide Y (NPY) bind and activate the human Y1 receptor subtype (hY1 receptor), which is found in 90% of breast cancer tissue and in all breast-cancer-derived metastases. Herein, novel highly boron-loaded Y1 -receptor-preferring peptide analogues are described as smart shuttle systems for carbaboranes as (10) B-containing moieties. Various positions in the peptide were screened for their susceptibility to carbaborane modification, and the most promising positions were chosen to create a mu…
Synthesis, characterization, and cellular investigations of porphyrin– and chlorin–indomethacin conjugates for photodynamic therapy of cancer
2021
Indomethacin is a potent non-steroidal anti-inflammatory drug (NSAID) with a strong selective inhibitor activity towards cyclooxygenase-2 (COX-2), an enzyme that is highly overexpressed in various tumour cells, being involved in tumourigenesis. Concomitantly, porphyrins have gained much attention as promising photosensitizers (PSs) for the non-invasive photodynamic therapy (PDT) of cancer. Herein, we report the design, and determine the singlet oxygen generation capacity and in vitro cellular toxicity of porphyrin- and chlorin-indomethacin conjugates (P2-Ind and C2-Ind). Both the conjugates were obtained in high yields and were characterized by 1H, 19F and 13C NMR as well as by high resolut…
CCDC 1558560: Experimental Crystal Structure Determination
2017
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558856: Experimental Crystal Structure Determination
2017
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558855: Experimental Crystal Structure Determination
2017
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558561: Experimental Crystal Structure Determination
2017
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024