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Showing 1 to 12 of 27 entries
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Electronic and molecular structure relations in diiron compounds mimicking the [FeFe]-hydrogenase active site studied by X-ray spectroscopy and quantum chemistry.

Dalton transactions (Cambridge, England : 2003)

Kositzki R, Mebs S, Schuth N, Leidel N, Schwartz L, Karnahl M, Wittkamp F, Daunke D, Grohmann A, Apfel UP, Gloaguen F, Ott S, Haumann M.
PMID: 28905949
Dalton Trans. 2017 Sep 26;46(37):12544-12557. doi: 10.1039/c7dt02720f.

Synthetic diiron compounds of the general formula Fe

Abrupt versus Gradual Spin-Crossover in Fe(II)(phen)2(NCS)2 and Fe(III)(dedtc)3 Compared by X-ray Absorption and Emission Spectroscopy and Quantum-Chemical Calculations.

Inorganic chemistry

Mebs S, Braun B, Kositzki R, Limberg C, Haumann M.
PMID: 26624918
Inorg Chem. 2015 Dec 21;54(24):11606-24. doi: 10.1021/acs.inorgchem.5b01822. Epub 2015 Dec 01.

Molecular spin-crossover (SCO) compounds are attractive for information storage and photovoltaic technologies. We compared two prototypic SCO compounds with Fe(II)N6 (1, [Fe(phen)2(NCS)2], with phen = 1,10-phenanthroline) or Fe(III)S6 (2, [Fe(dedtc)3], with dedtc = N,N'-diethyldithiocarbamate) centers, which show abrupt (1)...

Nucleation-Controlled Plasticity of Metallic Nanowires and Nanoparticles.

Advanced materials (Deerfield Beach, Fla.)

Mordehai D, David O, Kositski R.
PMID: 29962014
Adv Mater. 2018 Oct;30(41):e1706710. doi: 10.1002/adma.201706710. Epub 2018 Jul 01.

Nanowires and nanoparticles are envisioned as important elements of future technology and devices, owing to their unique mechanical properties. Metallic nanowires and nanoparticles demonstrate outstanding size-dependent strength since their deformation is dislocation nucleation-controlled. In this context, the recent experimental...

Poly(Lactic Acid)-Poly(Butylene Succinate)-Sugar Beet Pulp Composites; Part I: Mechanics of Composites with Fine and Coarse Sugar Beet Pulp Particles.

Polymers

Kopitzky R.
PMID: 34372134
Polymers (Basel). 2021 Jul 30;13(15). doi: 10.3390/polym13152531.

Sugar beet pulp (SBP) is a residue available in large quantities from the sugar industry, and can serve as a cost-effective bio-based and biodegradable filler for fully bio-based compounds based on bio-based polyesters. The heterogeneous cell structure of sugar...

Thermal and Morphological Properties of Poly(L-Lactic Acid)/Poly(D-Lactic Acid)-B-Polycaprolactone Diblock Copolymer Blends.

Materials (Basel, Switzerland)

Weidner E, Kabasci S, Kopitzky R, Mörbitz P.
PMID: 32503268
Materials (Basel). 2020 Jun 03;13(11). doi: 10.3390/ma13112550.

Due to the brittle nature of poly(lactic acid) many attempts have been made to flexibilize this polyester for applications such as thin films and foils. However, due to complex phase behavior, many drawbacks for plasticizer and blend components are...

Chlorine oxide radicals ClOx (x = 1-4) studied by matrix isolation spectroscopy.

Chemistry (Weinheim an der Bergstrasse, Germany)

Kopitzky R, Grothe H, Willner H.
PMID: 12693042
Chemistry. 2002 Dec 16;8(24):5601-21. doi: 10.1002/1521-3765(20021216)8:24<5601::AID-CHEM5601>3.0.CO;2-Z.

Low pressure flash thermolysis of different precursor molecules containing-ClO, -ClO3 or -OClO3 yield, when highly diluted in Ne or O2 and subsequent quenching of the products in a matrix at 5 or 15 K, ClOx (x = 1, 3,...

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review.

Polymers

Su S, Kopitzky R, Tolga S, Kabasci S.
PMID: 31319454
Polymers (Basel). 2019 Jul 17;11(7). doi: 10.3390/polym11071193.

Polylactide (PLA), poly(butylene succinate) (PBS) and blends thereof have been researched in the last two decades due to their commercial availability and the upcoming requirements for using bio-based chemical building blocks. Blends consisting of PLA and PBS offer specific...

Cross-Split of Dislocations: An Athermal and Rapid Plasticity Mechanism.

Scientific reports

Kositski R, Kovalenko O, Lee SW, Greer JR, Rabkin E, Mordehai D.
PMID: 27185327
Sci Rep. 2016 May 17;6:25966. doi: 10.1038/srep25966.

The pathways by which dislocations, line defects within the lattice structure, overcome microstructural obstacles represent a key aspect in understanding the main mechanisms that control mechanical properties of ductile crystalline materials. While edge dislocations were believed to change their...

Chemotactic tube-foot responses of a spongivorous sea starPerknaster fuscus to organic extracts from antarctic sponges.

Journal of chemical ecology

McClintock JB, Baker BJ, Slattery M, Hamann M, Kopitzke R, Heine J.
PMID: 24242201
J Chem Ecol. 1994 Apr;20(4):859-70. doi: 10.1007/BF02059583.

Hexane, chloroform, and methanol extracts of 18 species of antarctic sponges were tested for their ability to induce sustained tube-foot retraction in the antarctic spongivorous sea starPerknaster fuscus. Extracts were imbedded in silicone and used to coat the tip...

Clinical, neuropsychological, and pre-stimulus dorsomedial thalamic nucleus electrophysiological data in deep brain stimulation patients.

Data in brief

Sweeney-Reed CM, Zaehle T, Voges J, Schmitt FC, Buentjen L, Kopitzki K, Richardson-Klavehn A, Hinrichs H, Heinze HJ, Knight RT, Rugg MD.
PMID: 27508216
Data Brief. 2016 Jun 15;8:557-61. doi: 10.1016/j.dib.2016.06.008. eCollection 2016 Sep.

The data presented here comprise clinical, neuropsychological, and intrathalamic electrophysiological data from 7 patients with pharmacoresistant focal epilepsy and are related to the article "Pre-stimulus thalamic theta power predicts human memory formation" C.M. Sweeney-Reed, T. Zaehle, J. Voges, F.C....

Dietary Supplements Based on Red Yeast Rice-A Source of Citrinin?.

Toxins

Twarużek M, Ałtyn I, Kosicki R.
PMID: 34357969
Toxins (Basel). 2021 Jul 17;13(7). doi: 10.3390/toxins13070497.

Citrinin (CIT) is secondary metabolite of filamentous molds. This mycotoxin has nephrotoxic, hepatotoxic, embryocidal, and fetotoxic properties. It is also produced by several species of the three genera

The role of DNA nanostructures in the catalytic properties of an allosterically regulated protease.

Science advances

Kosinski R, Perez JM, Schöneweiß EC, Ruiz-Blanco YB, Ponzo I, Bravo-Rodriguez K, Erkelenz M, Schlücker S, Uhlenbrock G, Sanchez-Garcia E, Saccà B.
PMID: 34985948
Sci Adv. 2022 Jan 07;8(1):eabk0425. doi: 10.1126/sciadv.abk0425. Epub 2022 Jan 05.

[Figure: see text].

Showing 1 to 12 of 27 entries