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Showing 1 to 12 of 238 entries
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Thermally highly stable amorphous zinc phosphate intermediates during the formation of zinc phosphate hydrate.

Journal of the American Chemical Society

Bach S, Celinski VR, Dietzsch M, Panthöfer M, Bienert R, Emmerling F, Schmedt auf der Günne J, Tremel W.
PMID: 25602353
J Am Chem Soc. 2015 Feb 18;137(6):2285-94. doi: 10.1021/ja5103663. Epub 2015 Feb 05.

The mechanisms by which amorphous intermediates transform into crystalline materials are still poorly understood. Here we attempt to illuminate the formation of an amorphous precursor by investigating the crystallization process of zinc phosphate hydrate. This work shows that amorphous...

Inorganic Janus particles for biomedical applications.

Beilstein journal of nanotechnology

Schick I, Lorenz S, Gehrig D, Tenzer S, Storck W, Fischer K, Strand D, Laquai F, Tremel W.
PMID: 25551063
Beilstein J Nanotechnol. 2014 Dec 05;5:2346-62. doi: 10.3762/bjnano.5.244. eCollection 2014.

Based on recent developments regarding the synthesis and design of Janus nanoparticles, they have attracted increased scientific interest due to their outstanding properties. There are several combinations of multicomponent hetero-nanostructures including either purely organic or inorganic, as well as...

Vanadia supported on nickel manganese oxide nanocatalysts for the catalytic oxidation of aromatic alcohols.

Nanoscale research letters

Adil SF, Alabbad S, Kuniyil M, Khan M, Alwarthan A, Mohri N, Tremel W, Tahir MN, Siddiqui MR.
PMID: 25852349
Nanoscale Res Lett. 2015 Feb 06;10:52. doi: 10.1186/s11671-015-0750-5. eCollection 2015.

Vanadia nanoparticles supported on nickel manganese mixed oxides were synthesized by co-precipitation method. The catalytic properties of these materials were investigated for the oxidation of benzyl alcohol using molecular oxygen as oxidant. It was observed that the calcination temperature...

Facile hybridization of Ni@Fe2O3 superparticles with functionalized reduced graphene oxide and its application as anode material in lithium-ion batteries.

Journal of colloid and interface science

Backert G, Oschmann B, Tahir MN, Mueller F, Lieberwirth I, Balke B, Tremel W, Passerini S, Zentel R.
PMID: 27295319
J Colloid Interface Sci. 2016 Sep 15;478:155-63. doi: 10.1016/j.jcis.2016.06.011. Epub 2016 Jun 06.

In our present work we developed a novel graphene wrapping approach of Ni@Fe2O3 superparticles, which can be extended as a concept approach for other nanomaterials as well. It uses sulfonated reduced graphene oxide, but avoids thermal treatments and use...

On the True Indium Content of In-Filled Skutterudites.

Inorganic chemistry

Visnow E, Heinrich CP, Schmitz A, de Boor J, Leidich P, Klobes B, Hermann RP, Müller WE, Tremel W.
PMID: 26213290
Inorg Chem. 2015 Aug 17;54(16):7818-27. doi: 10.1021/acs.inorgchem.5b00799. Epub 2015 Jul 27.

The incongruently melting single-filled skutterudite InxCo4Sb12 is known as a promising bulk thermoelectric material. However, the products of current bulk syntheses contain always impurities of InSb, Sb, CoSb, or CoSb2, which prevent an unbiased determination of its thermoelectric properties....

Two-dimensional NMR spectroscopy with temperature-sweep.

Chemphyschem : a European journal of chemical physics and physical chemistry

Bermel W, Dass R, Neidig KP, Kazimierczuk K.
PMID: 24863674
Chemphyschem. 2014 Aug 04;15(11):2217-20. doi: 10.1002/cphc.201402191. Epub 2014 May 26.

Two-dimensional nuclear magnetic resonance (NMR) spectroscopy is useful for studying temperature-dependent effects on molecular structure. However, experimental time is usually long, because sampling is repeated at several temperatures. A novel solution to the problem is proposed, in which signal...

Long-Term Clinical Remission in a Patient with Metastatic Gastric Cancer after Palliative Chemotherapy.

Onkologie

Teufel A, Lehnert T, Stremmel W, Rudi J.
PMID: 11441242
Onkologie. 2000 Oct;23(5):464-466. doi: 10.1159/000027217.

BACKGROUND: More than 50% of patients with gastric cancer initially present with locally advanced or metastatic disease. In general, gastric cancer in an advanced or metastatic stage is regarded as incurable. Despite treatment with palliative chemotherapy, the median survival...

Alkaloids of Erythroxylum (Erythroxylaceae) species from Southern Brazil.

Biochemical systematics and ecology

Zuanazzi JA, Tremea V, Limberger RP, Sobral M, Henriques AT.
PMID: 11412954
Biochem Syst Ecol. 2001 Aug;29(8):819-825. doi: 10.1016/s0305-1978(01)00022-9.

A new alkaloid identified as 3beta,6beta-ditigloyloxynortropane as 3beta,7beta-ditigloyloxynortropane, 4-hydroxyhygrinic acid, methylecgonidine and tropacocaine have been isolated from the leaves of Erythroxylum argentinum. The new structure was established by means of spectroscopic techniques. Four other species E. deciduum, E. microphyllum,...

Radial Fourier multipliers of L(R).

Proceedings of the National Academy of Sciences of the United States of America

Carbery A, Gasper G, Trebels W.
PMID: 16593468
Proc Natl Acad Sci U S A. 1984 May;81(10):3254-5. doi: 10.1073/pnas.81.10.3254.

We give sufficient conditions (in terms of differentiability and growth properties) for a radial function to be an L(p)(R(2)) Fourier multiplier. These conditions are in the nature of best possible.

Probing cooperative interactions of tailor-made nucleation surfaces and macromolecules: a bioinspired route to hollow micrometer-sized calcium carbonate particles.

Langmuir : the ACS journal of surfaces and colloids

Loges N, Graf K, Nasdala L, Tremel W.
PMID: 16548560
Langmuir. 2006 Mar 28;22(7):3073-80. doi: 10.1021/la0528596.

It is well known that the formation of biominerals by living organisms is governed by the cooperation of soluble and insoluble macromolecules with peculiar interfacial properties. To date, most of the studies on mineralization processes involve model systems that...

Optimizing sensitivity and resolution in time-shared NMR experiments.

Magnetic resonance in chemistry : MRC

Pérez-Trujillo M, Nolis P, Bermel W, Parella T.
PMID: 17351972
Magn Reson Chem. 2007 Apr;45(4):325-9. doi: 10.1002/mrc.1973.

An improved approach to optimize the overall sensitivity and the resolution requirements in the indirect dimension of (13)C/(15)N time-shared (TS) NMR experiments is presented. A different data sampling acquisition procedure is applied for (13)C and (15)N in the indirect...

[Small hints for the practitioner].

Hippokrates

TIEGEL W.
PMID: 13574711
Hippokrates. 1958 Jul 31;29(14):452-7.

No abstract available.

Showing 1 to 12 of 238 entries