Results 61 to 70 of about 21,741,580 (297)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

DFT calculations of quadrupolar solid-state NMR properties: Some examples in solid-state inorganic chemistry.

open access: yes, 2008
International audienceThis article presents results of first-principles calculations of quadrupolar parameters measured by solid-state nuclear magnetic measurement (NMR) spectroscopy.
Eric Le Fur   +20 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

In-situ modification of nanostructured hydroxyapatite by CdS particles

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The article discusses the possibility of obtaining functional composite materials with pronounced photocatalytic properties. A hybrid composite material has been developed by in-situ modification of nanostructured hydroxyapatite obtained by precipitation
N.S. Kozhevnikova   +6 more
doaj   +1 more source

Diffuzionno-hardening solders based alloy gallium-indium-tin and powder of metal PCTSP5 reinforced with titanium [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The paper considers a new composition of diffusion-hardening solder based on a low-melting gallium alloy and copper-tin spherical powder (PCTSP5). The influence of the powder filler – titanium composition on the structure and properties of solder for ...
V.М. Skachkov   +3 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Transport and structural properties of (CH3)4NBF4 with nanodiamonds filler

open access: yesChimica Techno Acta
Composite solid electrolytes are promising materials for electrochemical devices. The most interesting ionic components for them are salts of substituted ammonium due to their high thermal and electrochemical stability, but the properties of composites ...
Ivan Stebnitskii   +2 more
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Assembled molecular face-rotating polyhedra to transfer chirality from two to three dimensions

open access: yesNature Communications, 2016
Protein subunits on the capsids of icosahedral viruses can form patterns with rotational symmetry, which are difficult to recreate in the laboratory. Here the authors report a strategy to construct 3D chiral polyhedra with rotational faces from 2D chiral
Xinchang Wang   +10 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

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