Results 51 to 60 of about 184,219 (281)

The structure of coordination precursors as an effective tool for governing of size and morphology of ZnS and ZnO nanoparticles

open access: yesJournal of Saudi Chemical Society, 2018
The zinc sulphide and zinc oxide micro- and nanoparticles of different shapes were synthesized from the five zinc coordination precursors, via controlled thermal decomposition process.
Rafal Kruszynski, Marcin Swiatkowski
doaj   +1 more source

Characterisation of very thin epitaxial layers by high resolution x-ray diffraction [PDF]

open access: yes, 1989
X-rays can be used as a sensitive, non-destructive probe for the characterisation of semiconductors. The energy and wavelength of X-rays is such that structural information down to the Ảngstrom level can be yielded with a depth penetration of several ...
Miles, S.J, Miles, Simon Jonathon
core  

A neutron laue diffraction study of endothiapepsin: Implications for the aspartic proteinase mechanism [PDF]

open access: yes, 2001
Current proposals for the catalytic mechanism of aspartic proteinases are largely based on X-ray structures of bound oligopeptide inhibitors possessing nonhydrolyzable analogues of the scissile peptide bond.
Myles, D. A. A.   +13 more
core   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

open access: yesFEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Impact of Homocyclic and Heterocyclic Rings of Chalcones on Charge Transfer Behaviour: A Nonlinear Optical Study

open access: yesChemical Physics Impact
This paper presents the effects of incorporating thienyl and phenyl rings as the terminal ring in the cinnamoyl counterparts of chalcones with donor-acceptor-donor (D-A-D) push-pull setting, on their photophysical responses.
Nur Aisyah Mohamad Daud   +6 more
doaj   +1 more source

Structural Chemistry of Halide including Thallides A8Tl11X1−n (A = K, Rb, Cs; X = Cl, Br; n = 0.1–0.9)

open access: yesCrystals, 2018
A8Tl11 (A = alkali metal) compounds have been known since the investigations of Corbett et al. in 1995 and are still a matter of current discussions as the compound includes one extra electron referred to the charge of the Tl117− cluster.
Stefanie Gärtner   +4 more
doaj   +1 more source

Estudo do cristal líquido 4,4' -Di (n) - Alcoxibenzilazina (n = 5,11) por microscopia ótica, calorimetria diferencial e difração de raios-x [PDF]

open access: yes, 1984
Dissertaçao (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.
Ouriques, Gerson Renzetti
core  

Purification, crystallization and preliminary X-ray diffraction analysis of an archaeal ABC-ATPase [PDF]

open access: yes, 2002
In the archaeon Sulfolobus solfataricus glucose uptake is mediated by an ABC transport system. The ABC-ATPase of this transporter (GlcV) has been overproduced in Escherichia coli and purified.
Andy-Mark W. H. Thunnissen   +20 more
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

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