Results 41 to 50 of about 4,496,883 (327)
Thinning CsPb2Br5 Perovskite Down to Monolayers: Cs-dependent Stability [PDF]
, 2017 Using first-principles density functional theory calculations, we systematically investigate the structural, electronic and vibrational properties of bulk and potential single-layer structures of perovskite-like CsPb2Br5 crystal.
Iyikanat, Fadil +2 more
core +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Flotation Separation of Cu-Pb-Zn Polymetallic Ore Based on Sulfuric Acid as Regulator
Kuangchan zonghe liyong, 2022 The main valuable elements of a Cu-Pb-Zn polymetallic ore in Laos are Cu, Pb, Zn and associated Ag. Aiming at the characteristics of the close association and fine dissemination of the valuable minerals, on the basis of exploratory experiments, the ...
Zhanghong Chen +3 more
doaj +1 more source
, 2019 We consider the Br vacancy in CsPbBr3 as a prototype for the impact of structural dynamics on defect energetics in halide perovskites (HaPs). Using first-principles molecular dynamics based on density functional theory, we find that the static picture of
Cohen, Ayala V. +3 more
core +1 more source
Photoreversible interconversion of a phytochrome photosensory module in the crystalline state. [PDF]
, 2020 A major barrier to defining the structural intermediates that arise during the reversible photointerconversion of phytochromes between their biologically inactive and active states has been the lack of crystals that faithfully undergo this transition ...
Aller, Pierre +26 more
core
Highly responsive ground state of PbTaSe$_2$: structural phase transition and evolution of superconductivity under pressure [PDF]
, 2017 Transport and magnetic studies of PbTaSe$_2$ under pressure suggest existence of two superconducting phases with the low temperature phase boundary at $\sim 0.25$ GPa that is defined by a very sharp, first order, phase transition.
Besser, Matthew +15 more
core +5 more sources
Molecules, 2021 Despite the progressive enhancement in the flexibility of Pb-based perovskites for optoelectronic applications, regrettably, they are facing two main challenges; (1) instability, which originates from using organic components in the perovskite structure,
Fatemeh Heidari Gourji +1 more
semanticscholar +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Locating the binding sites of Pb(II) ion with human and bovine serum albumins. [PDF]
PLoS ONE, 2012 Lead is a potent environmental toxin that has accumulated above its natural level as a result of human activity. Pb cation shows major affinity towards protein complexation and it has been used as modulator of protein-membrane interactions.
Ahmed Belatik +3 more
doaj +1 more source
Z$_2$ topology and superconductivity from symmetry lowering of a 3D Dirac Metal Au$_2$Pb
, 2014 3D Dirac semi-metals (DSMs) are materials that have massless Dirac electrons and exhibit exotic physical properties It has been suggested that structurally distorting a DSM can create a Topological Insulator (TI), but this has not yet been experimentally
Ali, Mazhar N. +14 more
core +1 more source