Results 131 to 140 of about 244,622 (256)

Eustachian and Aortic Valve Endocarditis: A Rare Case of Concomitant Right- and Left-Sided Endocarditis. [PDF]

open access: yesCureus
Riveros Neira N   +5 more
europepmc   +1 more source

Protonation‐Gated Orthogonal Control of Highly Efficient Molecular Motors With Broad Visible‐Light Responsiveness

open access: yesAngewandte Chemie, EarlyView.
Reversible protonation gates coumarin‐based overcrowded‐alkene molecular motors by dynamically reshaping their conjugation topology. This strategy enables efficient, near‐quantitative unidirectional photoisomerization from blue–green to red‐shifted visible light up to 600 nm, while preserving motor function and allowing orthogonal light, heat, and acid/
Jinghao Wang   +2 more
wiley   +2 more sources

First National Expanded Genomic Newborn Screening Program in Qatar; A Pilot Study, Doha‐Heidelberg Collaboration

open access: yes
American Journal of Medical Genetics Part A, EarlyView.
Reem Alsulaiman   +18 more
wiley   +1 more source

Tunable Regional Targeting of Self‐Assembling Peptide Nanomaterials in Acute Myocardial Infarction

open access: yesAdvanced NanoBiomed Research, EarlyView.
In a rat model of acute myocardial infarction, intravascular delivery of peptide nanofibers with a collagen‐targeting peptide bound to the infarct vasculature while globular peptide nanoparticles penetrated into the infarct area. This study demonstrated that size, shape, and surface chemistry of nanomaterials control the delivery location within the ...
Alexander Chen   +14 more
wiley   +1 more source

Mapping Proton‐Coupled Electron Transfer With Real Space Coordinates

open access: yesAngewandte Chemie, EarlyView.
We explore how proton‐coupled electron transfer (PCET) proceeds on a potential energy surface defined by two coordinates for proton and electron transfer that are obtained from quantum chemical calculations. The two‐dimensional maps for PCET show distinct characteristics for concerted proton–electron transfer and hydrogen atom transfer.
Adam Šrut   +4 more
wiley   +2 more sources

Light‐Driven Out‐of‐Equilibrium Helicity Control in a Diarylethene–Helicene Photosystem

open access: yesAngewandte Chemie, EarlyView.
Distinct energy landscapes of different helicities in the open and closed states of a diarylethene–helicene photoswitch enable a light‐driven energy ratchet. Helix inversion occurs selectively in the closed form, and the resulting helicity is transferred and kinetically trapped upon ring opening, generating a persistent out‐of‐equilibrium chiral state ...
Eric Sidler   +3 more
wiley   +2 more sources

Biosynthesis and Genetic Tuning of Guanine Crystals via Metabolic Engineering of Yeast

open access: yesAngewandte Chemie, EarlyView.
We demonstrate how yeast cells can be harnessed as cellular factories for the synthesis of optically functional guanine crystals, where genetic editing is used to tune crystal size, order and optical properties. This demonstrates a powerful new biosynthetic approach for the development of sustainable and biocompatible optical pigments, which utilizes ...
Jerome N. Janssen   +11 more
wiley   +2 more sources

Correction: Pneumococcal vaccination at 65 years and vaccination coverage in at-risk adults: A retrospective population-based study in France. [PDF]

open access: yesPLoS One
Wyplosz B   +12 more
europepmc   +1 more source

Kinetically Stable Boron‐Heteroatom Bonds

open access: yesAngewandte Chemie, EarlyView.
This study investigates the kinetic stability of boron‐heteroatom bonds in N‐methyliminodiacetic acid (MIDA) boronates. The hemilabile nature of the ligand enables the synthesis of molecules that would otherwise be considered too hydrolytically labile. Depending on the structure, acid‐promoted migration of the boryl group was found to produce compounds
Alina Trofimova   +8 more
wiley   +2 more sources

Fluorescent cAMP Analogs: Enzymatic Synthesis, Unexpected Photophysical Behavior and Protein Kinase A Recognition

open access: yesAngewandte Chemie, EarlyView.
Cyclic adenosine monophosphate (cAMP) is a key cellular second messenger. Adenylyl cyclase converts emissive isomorphic nucleoside triphosphates into fluorescent cAMPs. cthAMP displays unusually high brightness compared to thATP, its precursor, enabling real‐time monitoring of enzymatic reactions.
Deyuan Cong   +3 more
wiley   +2 more sources

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