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Showing 25 to 36 of 541 entries
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In situ observation of gamma-Fe2O3 nanoparticle adsorption under different monolayers at the air/water interface.

Langmuir : the ACS journal of surfaces and colloids

Degen P, Paulus M, Maas M, Kahner R, Schmacke S, Struth B, Tolan M, Rehage H.
PMID: 18850729
Langmuir. 2008 Nov 18;24(22):12958-62. doi: 10.1021/la802394a. Epub 2008 Oct 14.

We studied the adsorption of gamma-Fe 2O 3 nanoparticles from an aqueous solution under different charged Langmuir monolayers (stearic acid, stearyl alcohol, and stearyl amine). The aqueous subphase was composed of a colloidal suspension of gamma-Fe 2O 3 nanoparticles....

Thin film formation of silica nanoparticle/lipid composite films at the fluid-fluid interface.

Langmuir : the ACS journal of surfaces and colloids

Maas M, Ooi CC, Fuller GG.
PMID: 21067193
Langmuir. 2010 Dec 07;26(23):17867-73. doi: 10.1021/la103492a. Epub 2010 Nov 10.

We report a new and simple method for the formation of thin films at the interface between aqueous silica Ludox dispersions and lipid solutions in decane. The lipids used are stearic acid, stearyl amine, and stearyl alcohol alongside silica...

New syntheses of diazo compounds.

Angewandte Chemie (International ed. in English)

Maas G.
PMID: 19790217
Angew Chem Int Ed Engl. 2009;48(44):8186-95. doi: 10.1002/anie.200902785.

Diazo compounds (R1R2C=N2) are known as versatile and useful substrates for an array of chemical transformations and, therefore, diazo chemistry is still far from losing anything of its long-standing fascination. In addition to many studies on the subsequent chemistry...

Dystrophia Myotonia associated with Hemi-analgesia.

Proceedings of the Royal Society of Medicine

Maas O, Critchley M.
PMID: 19990204
Proc R Soc Med. 1935 Mar;28(5):522.

No abstract available.

Conjugate additions of cyclic oxygen-bound nickel enolates to alpha,beta-unsaturated ketones.

Chemistry (Weinheim an der Bergstrasse, Germany)

Maya CM, Cámpora J, Carmona E, Matas I, Palma P, Gutiérrez-Puebla E, Monge A.
PMID: 17253649
Chemistry. 2007;13(13):3675-87. doi: 10.1002/chem.200601357.

The reaction of nickel enolates displaying a metallacyclic structure with the alpha,beta-unsaturated ketones methyl vinyl ketone (MVK) or methyl propenyl ketone (MPK) takes place in two stages, affording initially bicyclic adducts, which subsequently isomerize to the corresponding open-chain products....

Intramolecular carbenoid ylide forming reactions of 2-diazo-3-keto-4-phthalimidocarboxylic esters derived from methionine and cysteine.

Beilstein journal of organic chemistry

Enßle M, Buck S, Werz R, Maas G.
PMID: 22509214
Beilstein J Org Chem. 2012;8:433-40. doi: 10.3762/bjoc.8.49. Epub 2012 Mar 22.

Methionine, S-benzylcysteine and S-allylcysteine were converted into 2-diazo-3-oxo-4-phthalimidocarboxylic esters 8a-c in three steps. Upon rhodium-catalysed dediazoniation, two intramolecular carbenoid reactions competed, namely the formation of a cyclic sulfonium ylide and that of a six-ring carbonyl ylide. The S-methyl and...

A highly efficient titanium catalyst for the synthesis of ultrahigh-molecular-weight polyethylene (UHMWPE).

Chemistry (Weinheim an der Bergstrasse, Germany)

Haas I, Hübner C, Kretschmer WP, Kempe R.
PMID: 23716345
Chemistry. 2013 Jul 08;19(28):9132-6. doi: 10.1002/chem.201301176. Epub 2013 May 28.

No abstract available.

Air transported pediatric rescue extracorporeal membrane oxygenation: a single institutional review.

World journal for pediatric & congenital heart surgery

Horne D, Lee JJ, Maas M, Divekar A, Kesselman M, Drews T, Veroukis S, Hancock BJ, Hiebert B, Cronin G, Soni R.
PMID: 23804780
World J Pediatr Congenit Heart Surg. 2012 Apr 01;3(2):236-40. doi: 10.1177/2150135111428627.

BACKGROUND: Pediatric extracorporeal membrane oxygenation (ECMO) programs are sophisticated endeavors usually found only in high-volume cardiac surgical programs. Worldwide, many cardiology programs do not have on-site pediatric cardiac surgery expertise. Our single-center experience shows that an organized multidisciplinary rescue-ECMO...

Bismuth-dispersed xerogel-based composite films for trace Pb(II) and Cd(II) voltammetric determination.

Analytica chimica acta

Dimovasilis PA, Prodromidis MI.
PMID: 23498120
Anal Chim Acta. 2013 Mar 26;769:49-55. doi: 10.1016/j.aca.2013.01.040. Epub 2013 Jan 28.

We report for the first time the synthesis of bismuth-modified (3-mercaptopropyl) trimethoxysilane (MPTMS) and its application for the determination of lead and cadmium by anodic stripping voltammetry. Xerogels made from bismuth-modified MPTMS and mixtures of it with tetraethoxysilane, under...

Social support and the working hours of employed mothers in Europe: The relevance of the state, the workplace, and the family.

Social science research

Abendroth AK, van der Lippe T, Maas I.
PMID: 23017794
Soc Sci Res. 2012 May;41(3):581-97. doi: 10.1016/j.ssresearch.2011.12.008. Epub 2012 Jan 02.

This paper studies the influence of state, workplace, and family support on the working hours of employed mothers and how these different support sources interact. Data taken from the European Social Survey 2004/2005 as well as country-specific information were...

Irreconcilable differences? Ethnic intermarriage and divorce in the Netherlands, 1995-2008.

Social science research

Smith S, Maas I, van Tubergen F.
PMID: 23017922
Soc Sci Res. 2012 Sep;41(5):1126-37. doi: 10.1016/j.ssresearch.2012.02.004. Epub 2012 Feb 27.

This study uses population data of the Netherlands (municipality registers) between 1995 and 2008 to describe and explain the occurrence of divorce among recently newlywed interethnic and mono-ethnic couples (N=116,745). In line with homogamy theory, divorce risks are higher...

Migratory insertion reactions of nickel and palladium σ-alkyl complexes with a phosphinito-imine ligand.

Dalton transactions (Cambridge, England : 2003)

Ortiz de la Tabla L, Matas I, Álvarez E, Palma P, Cámpora J.
PMID: 22936300
Dalton Trans. 2012 Dec 28;41(48):14524-39. doi: 10.1039/c2dt31334k.

Ligand exchange reactions have been used for the synthesis of metallacyclic complexes of Ni and Pd of the type [M[upper bond 1 start](CH(2)CMe(2)-o-C(6)[upper bond 1 end]H(4))(P-N)], where P-N is the phosphinito-imine ligand P(iPr)(2)OC(Me)[double bond, length as m-dash]N(2,6-C(6)H(3)(iPr)(2). The protic...

Showing 25 to 36 of 541 entries