Results 91 to 100 of about 3,837,484 (289)

Structural and Optical Properties of Sr-Modified Bismuth Silicate Nanostructured Films Synthesized by Sol Gel Method [PDF]

Journal of Nanostructures, 2017
In this work, the effects of strontium addition on the structure and optical properties of nanostructured bismuth silicate (Bi4Si3O12) thin films prepared via sol-gel were studied.
Saeid Hajijafari Bidgoli, Abbas Sadeghzadeh Attar, Mohammad Reza Bafandeh   +2 more
doaj   +1 more source

Tunable dynamic response of magnetic gels: impact of structural properties and magnetic fields

, 2014
Ferrogels and magnetic elastomers feature mechanical properties that can be reversibly tuned from outside through magnetic fields. Here we concentrate on the question how their dynamic response can be adjusted.
Borin, Dmitry Y., Cremer, Peet, Löwen, Hartmut, Menzel, Andreas M., Odenbach, Stefan, Tarama, Mitsusuke   +5 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Structural and electronic properties of MgO nanotube clusters

, 2004
Finite magnesium oxide nanotubes are investigated. Stacks of four parallel squares, hexagons, octagons, and decagons are constructed and studied by the pseudopotential density functional theory within the local-density approximation. Optimized structures
G. Bilalbegović, M. Wilson, T. M. Köhler   +2 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Development of Branched ZnO Microrods: A Comprehensive Structural and Optical Characterization [PDF]

Iranian Journal of Materials Science and Engineering
In this study, a novel three-step method for the synthesis of ZnO and branched ZnO microrods was developed. Numerous techniques were used to analyze the obtained samples: photoluminescence (PL) spectroscopy, raman spectroscopy, fourier transform infrared
ines dhifallah, faten rhouma, imen saafi, jamila bennaceur, wafa selmi, wissem dimessi, Radhouane Chtourou   +6 more
doaj  

On micro-structural effects in dielectric mixtures

, 2004
The paper presents numerical simulations performed on dielectric properties of two-dimensional binary composites on eleven regular space filling tessellations.
Bergman D J, Bergman D J, Bergman D J, Breiman L, Butkov E, Day A R, Day A R, Debye P, Dissado L A, Enis Tuncer, Feller W, Garnett J C M, Ghosh K, Golden K, Goncharenko A V, Goncharenko A V, Havriliak S, Ishida M, Jonscher A K, Landauer R J C Garland D B Tanner, Levy O, Levy O, Loéve M, Macdonald J R, Maxwell J C, McPhedran R C, McPhedran R C, Milton G W, Ngai K L, Perrins W T, Priou A, Ramakarishnan T V, Sahimi M, Sahimi M, Sihvola A, Sillars R, Stroud D, Torquato S, Tuncer E, Tuncer E, Tuncer E, Tuncer E, Tuncer E, Tuncer E, Tuncer E, Tuncer E Macdonald J R, Tuncer E Serdyuk Y V Guba?ski S M, Wagner K W, Wiener O, Williams R   +49 more
core   +2 more sources

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

Molecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak, Karolina Pytlak, Sandra Jaworowska, Bogusz Kulawiak, Piotr Bednarczyk   +4 more
wiley   +1 more source