Ruthenium Complex Excitation
Ruthenium Complex Excitation - Related Videos
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
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Cited by 4 •
2015
Ruthenium phosphine complexes are widely used for homogeneous catalytic reactions such as hydrogenations. The synthesis of a series of novel tridentate ruthenium complexes bearing the N-triphos ligand N(CH2PPh2)3 is reported. Additionally, the stoichiometric reaction of a dihydride Ru–N-triphos complex with levulinic acid is described.
03:03
Double-Staining Method: A Technique to Visualize Plant-Fungus Interactions Using Ruthenium Red and Lactophenol Cotton Blue
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2025
This video demonstrates a double staining method using ruthenium red and lactophenol cotton blue to visualize pectins and chitins during plant-fungus interactions in a coffee rust plant. The procedure helps understand plant defense mechanisms during fungal infections.
12:33
Corticospinal Excitability Modulation During Action Observation
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Cited by 22 •
2013
Single-pulse transcranial magnetic stimulation over the primary motor cortex, neuronavigation, and registration of electromyographic activity of hand muscles were used in this study to explore corticospinal excitability while participants were observing action sequences.
12:13
Assessing Primary Motor Cortex Excitability and Excitability Modulation by Pairing Transcranial Magnetic Stimulation with Electromyography
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2025
Here, we present a protocol outlining the methodology to assess primary motor cortex excitability and excitability modulation using transcranial magnetic stimulation (TMS) paired with electromyography (EMG).
07:12
Synthesis and Evaluation of a Ruthenium-based Mitochondrial Calcium Uptake Inhibitor
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Cited by 5 •
2017
A protocol for the synthesis, purification, and characterization of a ruthenium-based inhibitor of mitochondrial calcium uptake is presented. A procedure to evaluate its efficacy in permeabilized mammalian cells is demonstrated.
FAQs
After excitation, the complex can remain in a long-lived electronic state rather than relaxing immediately. That persistence creates time for several competing events, including light emission, energy transfer to oxygen, or electron transfer to another molecule. The dominant pathway determines whether the complex functions mainly as a luminescent probe, a photochemical reporter, or a light-activated antimicrobial agent.
Excited-state lifetime controls how long the complex can interact with nearby oxygen, biomolecules, or other reaction partners. A longer-lived state may provide more opportunity for energy or electron transfer before relaxation, while emission can reveal the excited-state behavior. Consequently, lifetime measurements help researchers evaluate and compare complexes for imaging or photochemical applications.
Energy transfer passes excitation energy from the ruthenium complex to oxygen or another acceptor, whereas electron transfer moves an electron between the complex and a reaction partner. These pathways can produce different photochemical effects and experimental readouts. Distinguishing them helps researchers interpret luminescence, oxygen-dependent activity, and light-triggered reactions in biological systems.
The excitation wavelength determines which optical transition is activated and therefore affects how efficiently the complex reaches its useful excited state. Researchers consider this wavelength alongside excited-state lifetime and charge-transfer behavior when designing experiments. Matching excitation conditions to the complex helps support reliable luminescence measurements or controlled photochemical effects in infection-related studies.
A basic evaluation can relate the selected excitation wavelength to the resulting emission, excited-state lifetime, and evidence of oxygen or electron-transfer reactivity. Researchers then determine whether those properties support fluorescence or luminescence tracking, biomolecular interaction studies, or light activation. This connects measurable photophysical behavior with the intended biological application.
Their photochemical properties support probes for tracking immune cells, pathogens, and interactions between biomolecules. In infection studies, luminescence can help visualize or follow relevant biological targets, while oxygen or electron-transfer pathways can support light-activated antimicrobial strategies. These uses connect molecular excitation behavior with imaging infection and examining host-pathogen interactions.