Results 41 to 50 of about 422,636 (257)

Structural response to O*-O' and magnetic transitions in orthorhombic perovskites [PDF]

, 2002
We present a temperature dependent single crystal x-ray diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal structure from the ferromagnetic insulating state to the ...
A. von Hippel, Auke Meetsma, B. Dabrowski, B. Dabrowski, Bas B. Van Aken, C. Williams, E. Liarokapis, G.A. de Wijs, J. Alonso, J. Kanamori, J. Rodríguez-Carvajal, J.B. Goodenough, J.B. Goodenough, J.B.A.A. Elemans, M. Dechamps, M. Marezio, N.D. Mathur, P.G. Radaelli, Q. Huang, R.D. Shannon, S.J. Hibble, S.J.L. Billinge, T. Mizokawa, Thomas T. M. Palstra, V.M. Goldschmidt, Y. Murakami, Y. Tokura, Y. Tomioka, Y. Yamada   +28 more
core   +4 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Crystal chemistry and photomechanical behavior of 3,4-dimethoxycinnamic acid: correlation between maximum yield in the solid-state topochemical reaction and cooperative molecular motion

IUCrJ, 2015
A new monoclinic polymorph, form II (P21/c, Z = 4), has been isolated for 3,4-dimethoxycinnamic acid (DMCA). Its solid-state 2 + 2 photoreaction to the corresponding α-truxillic acid is different from that of the first polymorph, the triclinic form I (P ...
Manish Kumar Mishra, Arijit Mukherjee, Upadrasta Ramamurty, Gautam R. Desiraju   +3 more
doaj   +1 more source

Synthesis and coordination chemistry of 2-(di-2-pyridylamino)pyrimidine; structural aspects of spin crossover in an Fe(II) complex [PDF]

, 2012
This paper was accepted on February 26 20122-(Di-2-pyridylamino)pyrimidine (L), a potentially ditopic tetradentate ligand, was synthesized from commercially available di-2-pyridylamine and 2-chloropyrimidine.
Addison, Amoore, Amoore, Antonioli, Atmani, Balzani, Barbour, Bloch, Boujemma Moubaraki, Brooker, Christopher J. Sumby, Domaga?a, Halcrow, Halcrow, Hayami, Janiak, Kaes, Keith S. Murray, Kharasch, Martin, Mosny, Murray, Murray, Neville, Neville, Olguin, Quesada, Quesada, Quesada, Rachel S. Crees, Real, Real, Ross, Ross, Sheldrick, Sumby, Sumby, Sumby, Sumby   +38 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Correction: Mishra, S.K. and Suryaprakash, N. Intramolecular Hydrogen Bonding Involving Organic Fluorine: NMR Investigations Corroborated by DFT-Based Theoretical Calculations: Molecules 2017, 22, 423

Molecules, 2019
The authors wish to make the following corrections to their paper [...]
Sandeep Kumar Mishra, N. Suryaprakash
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Intramolecular Hydrogen Bonding Involving Organic Fluorine: NMR Investigations Corroborated by DFT-Based Theoretical Calculations

Molecules, 2017
The combined utility of many one and two dimensional NMR methodologies and DFT-based theoretical calculations have been exploited to detect the intramolecular hydrogen bond (HB) in number of different organic fluorine-containing derivatives of molecules,
Sandeep Kumar Mishra, N. Suryaprakash
doaj   +1 more source

Structure and electronic structure of Metal-Organic Frameworks within the Density-Functional based Tight-Binding method

, 2011
Density-functional based tight-binding is a powerful method to describe large molecules and materials. Metal-Organic Frameworks (MOFs), materials with interesting catalytic properties and with very large surface areas have been developed and have become ...
Frenzel, Johannes, Heine, Thomas, Kuc, Agnieszka B., Lukose, Binit, Petkov, Petko St., Seifert, Gotthard, Supronowicz, Barbara, Vayssilov, Georgi N.   +7 more
core   +1 more source