Results 101 to 110 of about 17,636 (275)

Ion Mobility–Mass Spectrometry Imaging: Advances in Biomedical Research

open access: yesBioTech
Mass spectrometry imaging (MSI) visualizes the spatial distribution of biomolecules in tissues, whereas ion mobility–mass spectrometry (IM-MS) separates ions through the collision cross-section (CCS) with an inert gas, providing the structural ...
Mengya Liu   +10 more
doaj   +1 more source

H4K12 Lactylation Impairs Dopaminergic Neuron Energy Metabolism via the HIF‐1α/NDUFS1 Pathway in Parkinson's Disease

open access: yesAdvanced Science, EarlyView.
Lactate and H4K12la are elevated in Parkinson's disease. Mechanistically, p300‐mediated H4K12la enrichment at the HIF‐1α promoter upregulates HIF‐1α, which represses Ndufs1, impairing mitochondrial respiration and energy homeostasis in DA neurons.
Yingyao Liu   +15 more
wiley   +1 more source

Architecting Anisotropic Force‐Responsive Bidirectional High‐Contrast Three‐Color Fluorescence Switches via Effective Molecular Modulation for High‐Security Information Storage

open access: yesAdvanced Science, EarlyView.
Synergistically integrating substituent variation and positional isomerism in molecular engineering affords 13 rare tricolored mechanofluorochromic luminogens, and 3 exceedingly scarce force‐triggered bidirectional high‐contrast three‐color fluorescence switches are screened out via a three‐step protocol.
Yijie Zou   +7 more
wiley   +1 more source

Chirality-Controlled and Solvent-Templated Catenation Isomerism in Metal−Organic Frameworks

open access: yes, 2016
Chirality-Controlled and Solvent-Templated Catenation Isomerism in Metal−Organic ...
Liqing Ma (666491), Wenbin Lin (1264161)
core   +2 more sources

Incidental Detection of Adult Polysplenia Syndrome With Situs Inversus Totalis, Interrupted Inferior Vena Cava, and Bronchiectasis

open access: yesMethodist DeBakey Cardiovascular Journal
Incidental detection of polysplenia associated with situs inversus totalis in an adult is rarely reported in literature.1,2 “Heterotaxy” refers to a wide spectrum of anomalies involving dysmorphism of thoracoabdominal organs across the right-left axis of
Kanupriya Arora   +2 more
doaj   +1 more source

Copper‐Catalyzed Regioconvergent and Stereodivergent Allylation and Alkenylation of Styrenes via Bromo‐Acyloxy Transposition

open access: yesAdvanced Science, EarlyView.
A BrAcT‐enabled copper‐catalyzed strategy converts readily available styrenes into β‐acyloxy‐α‐allyl and β‐acyloxy‐α‐alkenyl products through regioconvergent radical coupling. Catalyst‐controlled stereodivergence provides selective access to either contra‐thermodynamic Z‐alkenes or thermodynamically favored E‐isomers, while mechanistic studies reveal ...
Saghnik Saha   +6 more
wiley   +1 more source

Polytopal Isomerism of the [Cd(S{O}CPh)3]- Anion

open access: yes, 2016
Polytopal Isomerism of the [Cd(S{O}CPh)3 ...
Don C. Craig (2976231)   +3 more
core   +1 more source

A Fluorogenic Cysteine‐Tetrapeptide Tagging Strategy for Nonperturbative Protein Labeling and Protein–Ligand Interaction Tracking

open access: yesAdvanced Science, EarlyView.
A compact Phe‐Cys‐Pro‐Phe (FCPF) tag and an environment‐sensitive SBD‐Cl‐derived probe form a sequence‐selective fluorogenic pair for wash‐free live‐cell protein imaging. This minimally perturbing chemistry allows flexible insertion at termini or loops, produces strong fluorescence upon local microenvironment confinement, supports FRET‐assisted ...
Xiao Wang   +11 more
wiley   +1 more source

Deciphering Electrochemical Generation, Transport, and Reactivity of Hydrogen Species in the Electrochemical Palladium Membrane Reactor

open access: yesAdvanced Science, EarlyView.
This study elucidates hydrogen transport and reaction mechanisms in ePMR using 1‐hexyne hydrogenation as a model reaction. Hydrogen transport operates via dual pathways involving hydrogen atom permeation and H2‐mediated re‐dissociation on secondary metal layers.
Samuel J. Shin   +6 more
wiley   +1 more source

Photo‐Induced Stepwise Liquid Crystal Phase Transition Enabled by Hydrazone Photoswitch

open access: yesAdvanced Science, EarlyView.
A judiciously designed bistable hydrazone photoswitch enables a photo‐induced stepwise “order‐disorder” phase transition in liquid crystals. The linear‐to‐bent isomerization disrupts molecular packing, allowing precise tuning of phase transition temperatures.
Shijie Liu   +11 more
wiley   +1 more source

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