Results 61 to 70 of about 1,830,967 (340)

Dynamical T-matrix theory for high-density excitons in coupled quantum wells

, 2006
Excitons in coupled quantum wells open the possibility to reach high densities close to equilibrium. In a recent experiment employing a lateral trap potential, a blue shift and a broadening of the exciton emission line has been seen (Snoke, SSC 134). The
Ben-Tabou de-Leon, Butov, Griffin, Keeling, Snoke, Snoke, Zimmermann   +6 more
core   +1 more source

An improved synthesis, crystal structures, and metallochromism of salts of [Ru(tolyl-terpy)(CN)(3)](-) [PDF]

, 2010
The previously reported complex [Ru(ttpy)(CN)(3)] [ttpy = 4'(p-tolyl)-2,2':6',2"-terpyridine] is conveniently synthesised by reaction of ttpy with Ru(dmso)(4)Cl-2 to give [Ru(ttpy)(dmso)Cl-2], which reacts in turn with KCN in aqueous ethanol to afford ...
Adams, Argazzi, Baca, Baca, Baca, Bergamini, Canard, Christopher A. Hunter, Davies, Derossi, Derossi, Derossi, Evju, Franco, Habib Jiwan, Herrera, Herrera, Howell, Indelli, Kovács, Lazarides, Li, Megyes, Michael D. Ward, Norrby, Pina, Tessore, Timpson, Voirrey L. Robinson, Ward, Ziessel   +30 more
core   +1 more source

The [2Fe‐2S] cluster of mitochondrial outer membrane protein mitoNEET has an O2‐regulated nitric oxide access tunnel

FEBS Letters, Volume 599, Issue 7, Page 952-970, April 2025.
The mitochondrial outer membrane iron–sulphur ([Fe‐S]) protein mitoNEET is a target of the type‐2 diabetes drug pioglitazone. Its unknown molecular function is linked to respiratory complex activity and mitochondrial function. We discovered that O2 protects the mitoNEET [2Fe‐2S] cluster against NO oxidation and desensitization towards reduction by H2S.
Thao Nghi Hoang, Meritxell Wu‐Lu, Alberto Collauto, Peter‐Leon Hagedoorn, Madalina Alexandru, Maike Henschel, Shahram Kordasti, Maria Andrea Mroginski, Maxie M. Roessler, Kourosh H. Ebrahimi   +9 more
wiley   +1 more source

Temporal variations of the CaXIX spectra in solar flares [PDF]

Astronomy and Astrophysics, Volume 508, Issue 2, 2009, pp.971-978, 2009
Standard model of solar flares comprises a bulk expansion and rise of abruptly heated plasma (the chromospheric evaporation). Emission from plasma ascending along loops rooted on the visible solar disk should be often dominated, at least temporally, by a blue-shifted emission.
arxiv   +1 more source

Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β‐carbonic anhydrase

FEBS Letters, Volume 599, Issue 8, Page 1146-1158, April 2025.
Here, we performed a functional analysis of the fungal enzymes belonging to clade D of the β‐class carbonic anhydrase family (β‐D‐CA). The β‐D‐CAs in the basidiomycete Gloeophyllum trabeum and the ascomycete Trichoderma harzianum showed very low activity in the hydration of CO2 but exhibited high activity in the hydrolysis of carbonyl sulfide (COS ...
Ryuka Iizuka, Takahiro Ogawa, Rikako Tsukida, Keiichi Noguchi, David Hibbett, Yoko Katayama, Makoto Yoshida   +6 more
wiley   +1 more source

Molecular insights into the modulation of the 5HT2A receptor by serotonin, psilocin, and the G protein subunit Gqα

FEBS Letters, Volume 599, Issue 6, Page 876-891, March 2025.
We explore 5HT2A receptor activation, a key target for psychedelic drugs, using molecular dynamics simulations. Without Gqα, the active receptor collapses to an inactive conformation, underscoring the G‐protein's role. Discovery of an intermediate “partially‐open” state and the higher affinity of ligands to the orthosteric binding site provides ...
Niklas Viohl, Ali Asghar Hakami Zanjani, Himanshu Khandelia   +2 more
wiley   +1 more source

Synthesis and Luminescence Modulation of Pyrazine-Based Gold(III) Pincer Complexes [PDF]

, 2015
The first examples of pyrazine-based gold(III) pincer complexes have been synthesized; their intense photoemissions can be modified by interactions with the non-coordinating pyrazine-N atom.
Au, Benoît Bertrand, Bronner, Cheng, Coles, Culham, Garth A. Jones, Julio Fernandez-Cestau, Kozhevnikov, Krylova, Lancaster, Lanë, Leitl, Manfred Bochmann, Maria Blaya, Marion, Roşca, Roşca, Roşca, Roşca, Savjani, Soscún Machado, Tang, Tao, Thomas J. Penfold, To, To, Walker, Walker, Wong, Wu, Yam, Yersin   +32 more
core   +1 more source

Interaction between bacterial phytochromes Agp1 and Agp2 of Agrobacterium fabrum by fluorescence resonance energy transfer and docking studies

FEBS Letters, Volume 599, Issue 6, Page 848-865, March 2025.
The interaction between Agrobacterium fabrum phytochromes Agp1 and Agp2 was studied using FRET. Full‐length and truncated proteins with varied label positions provided spatial insights, narrowing down from many docking models to three. These models explain Agp2's reduction in Agp1 autophosphorylation, with Arg83 of Agp2 specifically evolved to interact
Afaf El Kurdi, Gero Kaeser, Patrick Scheerer, David Hoffmann, Ebru Akkus, Marcus Elstner, Norbert Krauß, Tilman Lamparter   +7 more
wiley   +1 more source

Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions

FEBS Letters, Volume 599, Issue 9, Page 1317-1336, May 2025.
This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten, Lorenz Schwaiger, Zarah Forsberg, Kelsi R. Hall, Anton A. Stepnov, Tom Z. Emrich‐Mills, Iván Ayuso‐Fernández, Morten Sørlie, Roland Ludwig, Åsmund Kjendseth Røhr, Vincent G. H. Eijsink   +10 more
wiley   +1 more source

Macroscopic effects in generation of attosecond XUV pulses via high-order frequency mixing in gases and plasma

New Journal of Physics
We theoretically study the generation of attosecond XUV pulses via high-order frequency mixing (HFM) of two intense generating fields, and compare this process with the more common high-order harmonic generation (HHG) process.
V A Birulia, M A Khokhlova, V V Strelkov
doaj   +1 more source