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Showing 1 to 12 of 123 entries
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Photoisomerization of the cyanoacrylic acid acceptor group--a potential problem for organic dyes in solar cells.

Physical chemistry chemical physics : PCCP

Zietz B, Gabrielsson E, Johansson V, El-Zohry AM, Sun L, Kloo L.
PMID: 24382585
Phys Chem Chem Phys. 2014 Feb 14;16(6):2251-5. doi: 10.1039/c3cp54048k.

Organic solar cell dyes containing the most common anchoring group, cyanoacrylic acid, are shown to be photolabile and undergo photoisomerization. This may have significant consequences for dye-sensitized solar cells, as isomerisation competes with electron injection and leads to modifications...

Electronic plants.

Science advances

Stavrinidou E, Gabrielsson R, Gomez E, Crispin X, Nilsson O, Simon DT, Berggren M.
PMID: 26702448
Sci Adv. 2015 Nov 20;1(10):e1501136. doi: 10.1126/sciadv.1501136. eCollection 2015 Nov.

The roots, stems, leaves, and vascular circuitry of higher plants are responsible for conveying the chemical signals that regulate growth and functions. From a certain perspective, these features are analogous to the contacts, interconnections, devices, and wires of discrete...

Breast Milk and Solid Food Shaping Intestinal Immunity.

Frontiers in immunology

Parigi SM, Eldh M, Larssen P, Gabrielsson S, Villablanca EJ.
PMID: 26347740
Front Immunol. 2015 Aug 19;6:415. doi: 10.3389/fimmu.2015.00415. eCollection 2015.

After birth, the intestinal immune system enters a critical developmental stage, in which tolerogenic and pro-inflammatory cells emerge to contribute to the overall health of the host. The neonatal health is continuously challenged by microbial colonization and food intake,...

Thermoelectric Polymers and their Elastic Aerogels.

Advanced materials (Deerfield Beach, Fla.)

Khan ZU, Edberg J, Hamedi MM, Gabrielsson R, Granberg H, Wågberg L, Engquist I, Berggren M, Crispin X.
PMID: 26836440
Adv Mater. 2016 Jun;28(22):4556-62. doi: 10.1002/adma.201505364. Epub 2016 Feb 02.

Electronically conducting polymers constitute an emerging class of materials for novel electronics, such as printed electronics and flexible electronics. Their properties have been further diversified to introduce elasticity, which has opened new possibility for "stretchable" electronics. Recent discoveries demonstrate...

The anti-inflammatory compound palmitoylethanolamide inhibits prostaglandin and hydroxyeicosatetraenoic acid production by a macrophage cell line.

Pharmacology research & perspectives

Gabrielsson L, Gouveia-Figueira S, Häggström J, Alhouayek M, Fowler CJ.
PMID: 28357126
Pharmacol Res Perspect. 2017 Feb 27;5(2):e00300. doi: 10.1002/prp2.300. eCollection 2017 Apr.

The anti-inflammatory agent palmitoylethanolamide (PEA) reduces cyclooxygenase (COX) activity in vivo in a model of inflammatory pain. It is not known whether the compound reduces prostaglandin production in RAW264.7 cells, whether such an action is affected by compounds preventing...

Electronic structure and excited states of rhenium(I) amido and phosphido carbonyl-bipyridine complexes studied by picosecond time-resolved IR spectroscopy and DFT calculations.

Inorganic chemistry

Gabrielsson A, Busby M, Matousek P, Towrie M, Hevia E, Cuesta L, Perez J, Zális S, Vlcek A.
PMID: 17112276
Inorg Chem. 2006 Nov 27;45(24):9789-97. doi: 10.1021/ic0614768.

UV-vis absorption and picosecond time-resolved IR (TRIR) spectra of amido and phosphido complexes fac-[Re(ER2)(CO)3(bpy)] (ER2 = NHPh, NTol2, PPh2, bpy = 2,2'-bipyridine, Tol = 4-methylphenyl) were investigated in conjunction with DFT and TD-DFT calculations in order to understand their...

Excited states of nitro-polypyridine metal complexes and their ultrafast decay. Time-resolved IR Absorption, spectroelectrochemistry, and TD-DFT calculations of fac-[Re(Cl)(CO)3(5-nitro-1,10-phenanthroline)].

The journal of physical chemistry. A

Gabrielsson A, Matousek P, Towrie M, Hartl F, Zalis S, Vlcek A.
PMID: 16833954
J Phys Chem A. 2005 Jul 21;109(28):6147-53. doi: 10.1021/jp051677h.

The lowest absorption band of fac-[Re(Cl)(CO)3(5-NO2-phen)] encompasses two close-lying MLCT transitions. The lower one is directed to LUMO, which is heavily localized on the NO2 group. The UV-vis absorption spectrum is well accounted for by TD-DFT (G03/PBEPBE1/CPCM), provided that...

Ultrafast charge separation in a photoreactive rhenium-appended porphyrin assembly monitored by picosecond transient infrared spectroscopy.

Journal of the American Chemical Society

Gabrielsson A, Hartl F, Zhang H, Lindsay Smith JR, Towrie M, Vlcek A, Perutz RN.
PMID: 16569000
J Am Chem Soc. 2006 Apr 05;128(13):4253-66. doi: 10.1021/ja0539802.

Rhenium(bipyridine)(tricarbonyl)(picoline) units have been linked covalently to tetraphenylmetalloporphyrins of magnesium and zinc via an amide bond between the bipyridine and one phenyl substituent of the porphyrin. The resulting complexes, abbreviated as [Re(CO)(3)(Pic)Bpy-MgTPP][OTf] and [Re(CO)(3)(Pic)Bpy-ZnTPP][OTf], exhibit no signs of electronic...

Gene promoter hypermethylation in tumors and plasma of breast cancer patients.

Cancer research and treatment

Bae YK, Shim YR, Choi JH, Kim MJ, Gabrielson E, Lee SJ, Hwang TY, Shin SO.
PMID: 19956520
Cancer Res Treat. 2005 Aug;37(4):233-40. doi: 10.4143/crt.2005.37.4.233. Epub 2005 Aug 31.

PURPOSE: To measure the hypermethylation of four genes in primary tumors and paired plasma samples to determine the feasibility of gene promoter hypermethylation markers for detecting breast cancer in the plasma.MATERIALS AND METHODS: DNA was extracted from the tumor...

Comparing spiro-OMeTAD and P3HT hole conductors in efficient solid state dye-sensitized solar cells.

Physical chemistry chemical physics : PCCP

Yang L, Cappel UB, Unger EL, Karlsson M, Karlsson KM, Gabrielsson E, Sun L, Boschloo G, Hagfeldt A, Johansson EM.
PMID: 22116450
Phys Chem Chem Phys. 2012 Jan 14;14(2):779-89. doi: 10.1039/c1cp23031j. Epub 2011 Nov 25.

Two hole conductor materials, spiro-OMeTAD and P3HT, were compared in solid-state dye-sensitized solar cells. Two organic dyes containing one anchor unit (D35) or two anchor units (M3) were used in the comparison. Absorbed photon to current conversion efficiency close...

Cancer immunotherapy with exosomes requires B-cell activation.

Oncoimmunology

Näslund TI, Gehrmann U, Gabrielsson S.
PMID: 23894715
Oncoimmunology. 2013 Jun 01;2(6):e24533. doi: 10.4161/onci.24533. Epub 2013 Apr 16.

Exosomes derived from dendritic cells (dexosomes) induce potent antitumor immune responses in mice. We have shown that the efficacy of dexosome-elicited antitumor immunity relies on the presence of both T- and B-cell dexosome-associated epitopes. Hence, the inclusion of B-cell...

Design of organic dyes and cobalt polypyridine redox mediators for high-efficiency dye-sensitized solar cells.

Journal of the American Chemical Society

Feldt SM, Gibson EA, Gabrielsson E, Sun L, Boschloo G, Hagfeldt A.
PMID: 21047080
J Am Chem Soc. 2010 Nov 24;132(46):16714-24. doi: 10.1021/ja1088869. Epub 2010 Nov 03.

Dye-sensitized solar cells (DSCs) with cobalt-based mediators with efficiencies surpassing the record for DSCs with iodide-free electrolytes were developed by selecting a suitable combination of a cobalt polypyridine complex and an organic sensitizer. The effect of the steric properties...

Showing 1 to 12 of 123 entries