Results 131 to 140 of about 58,890 (308)

Towards the sequence-specific multivalent molecular recognition of cyclodextrin oligomers

open access: yesBeilstein Journal of Organic Chemistry, 2014
Sequence-specific multivalent molecular recognition has been recognized to play a major role in biological processes. Furthermore, sequence-specific recognition motifs have been used in various artificial systems in the last years, e.g., to emulate ...
Michael Kurlemann, Bart Jan Ravoo
doaj   +1 more source

Cooperativity effect in metal-ligand and macromolecule-ligand equilibria

open access: yes, 1986
An evaluation of the cooperativity effect in metal-ligand and protein-ligand complexes can be made by using dimensionless parameters Kγ (homotropic), and Kγ' (heterotropic). Starting from the relation ̅n = .vdelta. ln ΣM/.vdelta.
FISICARO, Emilia   +3 more
core   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

Enhancing cooperativity of molecular J-aggregates by resonantly coupled dielectric metasurfaces

open access: yesNanophotonics
J-aggregates are supramolecular assemblies of dyes exhibiting strong absorption and fluorescence with narrow linewidths, as well as large optical nonlinearities, induced by the formation of largely delocalized molecular excitons.
Marangi Marco   +6 more
doaj   +1 more source

Relative Cooperative Effects of Non-Covalent Interactions on Hydrogen Bonds in Model Y…HCN/HNC…XF Trimers (Y = FB, OC, N2, CO, BF; XF = HF, LiF, BeF2, BF3, ClF, PH2F, SF2, SiH3F)

open access: yesCrystals
A computational study of model Y…HCN/HNC (Y = FB, OC, N2, CO, BF) dimers was undertaken to assess the effect on the Y…H hydrogen bond when the Lewis base Y is systematically varied, while another model study of HCN/HNC…XF (XF = HF, LiF, BeF2, BF3, ClF ...
Sean A. C. McDowell, Kodi A. Edwards
doaj   +1 more source

Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow   +9 more
wiley   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

From Weak to Functional: Network Cooperativity and Anti-Cooperativity in Cyclic Neutral (HF)m(NH3)n Hydrogen Bonded Clusters

open access: yes
Individual hydrogen bond (HB) energies and cooperativity contributions were characterized across 66 HBs in twelve cyclic neutral (HF)m(NH3)n clusters (m + n = 3–7) using a molecular tailoring approach (MTA)-based fragmentation method at the MP2/aug-cc ...
Deepak Patkar
core   +1 more source

Cooperativity reduces the sequence specificity of p53 DNA binding.

open access: yes, 2013
(A) Classification of genomic regions. (B) Distribution of p53 binding sites across the genome on the basis of the classification depicted in (A). (C) Motif analysis within low (first column), high (second column) and highest cooperativity p53 binding ...
Florian Finkernagel (166825)   +9 more
core   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

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