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Showing 25 to 36 of 824 entries
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Incorporation of fatty acids into cuticular hydrocarbons of male and female Drosophila melanogaster.

Journal of insect physiology

Jallon J, Kunesch G, Bricard L, Pennanec'h M.
PMID: 12770483
J Insect Physiol. 1997 Nov;43(12):1111-1116. doi: 10.1016/s0022-1910(97)00082-6.

The biosynthesis of cuticular hydrocarbons was investigated in male and female Drosophila melanogaster (Canton-S strain), especially in those with a pheromonal role i.e. male 7-tricosene and female 7, 11- heptacosadiene. The incorporation of radioactivity was followed after topical application...

Photocatalytic efficiencies of self-cleaning glasses. Influence of physical factors.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

Peruchon L, Puzenat E, Herrmann JM, Guillard C.
PMID: 19582281
Photochem Photobiol Sci. 2009 Jul;8(7):1040-6. doi: 10.1039/b902139f. Epub 2009 Jun 08.

Two commercial types of self-cleaning glass (SCG) have been tested to confirm the real photocatalytic nature of their properties. This was done by using four photocatalytic tests: (i) in the gas phase with the total oxidation of acetylene; (ii)...

Formation of volatile organic compounds in the heterogeneous oxidation of condensed-phase organic films by gas-phase OH.

The journal of physical chemistry. A

Vlasenko A, George IJ, Abbatt JP.
PMID: 18225872
J Phys Chem A. 2008 Feb 21;112(7):1552-60. doi: 10.1021/jp0772979. Epub 2008 Jan 29.

The yield of volatile organic compounds (VOCs) from the heterogeneous oxidation of condensed-phase organic and hydrocarbon soot films by gas-phase OH has been studied in a coated-wall flow tube at room temperature. Simultaneously, OH concentrations are measured using a...

Membrane fluidity changes are associated with the antiarrhythmic effects of docosahexaenoic acid in adult rat cardiomyocytes.

The Journal of nutritional biochemistry

Leifert WR, Jahangiri A, McMurchie EJ.
PMID: 15539341
J Nutr Biochem. 2000 Jan;11(1):38-44. doi: 10.1016/s0955-2863(99)00069-8.

Previous studies using neonatal rat cardiomyocytes have reported antiarrhythmic effects of long-chain polyunsaturated fatty acids (PUFAs). In this study, we examined the effects of the n-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) on the spontaneous contractile activity and membrane...

STM study on 2D molecular assemblies of luminescent quinacridone derivatives: structure fine-tuned by introducing bulky substitutes and co-adsorption with monofunctional/bifunctional acid.

Langmuir : the ACS journal of surfaces and colloids

Yang X, Wang J, Zhang X, Wang Z, Wang Y.
PMID: 17241047
Langmuir. 2007 Jan 30;23(3):1287-91. doi: 10.1021/la0624034.

We describe the 2D assemblies of a series of N,N'-dialkyl-substituted quinacridone derivatives on highly oriented pyrolytic graphite observed by scanning tunneling microscopy. Our experiments have demonstrated that pure quinacridone derivatives take contractive conformations, but quinacridone derivatives take extended conformations...

Domain structures in langmuir-blodgett films investigated by atomic force microscopy.

Science (New York, N.Y.)

Chi LF, Anders M, Fuchs H, Johnston RR, Ringsdorf H.
PMID: 17790988
Science. 1993 Jan 08;259(5092):213-6. doi: 10.1126/science.259.5092.213.

Investigations of phase-separated Langmuir-Blodgett films by atomic force microscopy reveal that on a scale of 30 to 200 micrometers, these images resemble those observed by fluorescence microscopy. Fine structures (less than 1 micrometer) within the stearic acid domains were...

Effect of metal ions on monolayer collapses.

Langmuir : the ACS journal of surfaces and colloids

Kundu S, Datta A, Hazra S.
PMID: 15952839
Langmuir. 2005 Jun 21;21(13):5894-900. doi: 10.1021/la0505770.

A Langmuir monolayer of stearic acid on pure water and in the presence of certain divalent metal ions such as Cd and Pb at pH approximately 6.5 of the subphase water collapses at constant area, while for other divalent...

Selectivity and stability of organic films at the air-aqueous interface.

Journal of colloid and interface science

Gilman JB, Eliason TL, Fast A, Vaida V.
PMID: 15476795
J Colloid Interface Sci. 2004 Dec 01;280(1):234-43. doi: 10.1016/j.jcis.2004.07.019.

It has recently been determined that organic compounds represent a significant percentage of the composition of certain atmospheric aerosols. Amphiphilic organics, such as fatty acids and alcohols, partition to the interface of aqueous aerosols. In this way, the air-aqueous...

In Vitro Fatty Acid Synthesis and Complex Lipid Metabolism in the Cyanobacterium Anabaena variabilis: I. Some Characteristics of Fatty Acid Synthesis.

Plant physiology

Lem NW, Stumpf PK.
PMID: 16663367
Plant Physiol. 1984 Jan;74(1):134-8. doi: 10.1104/pp.74.1.134.

In vitro fatty acid synthesis was examined in crude cell extracts, soluble fractions, and 80% (NH(4))(2)SO(4) fractions from Anabaena variabilis M3. Fatty acid synthesis was absolutely dependent upon acyl carrier protein and required NADPH and NADH. Moreover, fatty acid...

Structure of montmorillonite cointercalated with stearic acid and octadecylamine: modeling, diffraction, IR spectroscopy.

Journal of colloid and interface science

Capková P, Pospísil M, Valásková M, Merínská D, Trchová M, Sedláková Z, Weiss Z, Simoník J.
PMID: 16631185
J Colloid Interface Sci. 2006 Aug 01;300(1):264-9. doi: 10.1016/j.jcis.2006.03.033. Epub 2006 May 02.

Structural analysis of Na-montmorillonite co-intercalated with octadecylamine and stearic acid was carried out using combination of experiment: X-ray powder diffraction and IR spectroscopy with molecular modeling (force field calculations) in Cerius(2) modeling environment. Results of structure analysis revealed the...

Mixed saturated-unsaturated alkyl-chain assemblies: solid solutions of zinc stearate and zinc oleate.

The journal of physical chemistry. B

Barman S, Vasudevan S.
PMID: 17441755
J Phys Chem B. 2007 May 17;111(19):5212-7. doi: 10.1021/jp068675x. Epub 2007 Apr 19.

The linear saturated stearic acid and the bent mono-unsaturated oleic acid do not mix and form solid solutions. However, the zinc salts of these acids can. From X-ray diffraction and DSC measurements we show that the layered zinc stearate...

Infrared imaging of a solid phase surfactant monolayer.

Langmuir : the ACS journal of surfaces and colloids

Conover TA, Saylor JR.
PMID: 16863234
Langmuir. 2006 Aug 01;22(16):6881-6. doi: 10.1021/la060345g.

A new method for visualizing solid phase surfactant monolayers is presented. This method utilizes infrared (IR) imaging of the surface of a warm subphase covered by the monolayer. When the subphase is deep, natural convection occurs, resulting in a...

Showing 25 to 36 of 824 entries