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Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!2025-02-06
5 Results for "
excited-state intramolecular charge transfer
" in MedChemExpress (MCE) Product Catalog:
Products (5)
5 Results for "excited-state intramolecular charge transfer" in MCE Product Catalog:
Cat. No.: HY-D1470
CAS No.: 210832-86-3
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BADAN is a thiol-reactive, environment-sensitive fluorescent probe used for site-specific labeling of protein cysteine residues to detect protein topology, local polarity, protein-lipid interactions, and conformational changes. The bromoacetyl group of BADAN covalently binds to cysteine thiols, and its fluorescence originates from the intramolecular charge transfer (ICT) excited state. The emission peak position varies with the polarity of the surrounding medium: it blue-shifts to approximately 488 nm in nonpolar environments (such as the hydrophobic core of lipid bilayers) and red-shifts to approximately 496-507 nm in polar environments (such as aqueous phases), independent of enzymes, pH, or membrane potential. Ex = 380-402 nm; Em = 400-600 nm .
Cat. No.: HY-149203
Cat. No.: HY-149203A
Purity: 97.36%
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MQA-P is a multifunctional near-infrared (NIR) fluorescent probe that simultaneously detects ONOO -, viscosity, and polarity within mitochondria. MQA-P exhibits significant response to ONOO -, λem=645 nm; and NIR channel at λem>704 nm Medium is highly sensitive to viscosity/polarity. MQA-P possesses excited-state intramolecular charge transfer (ESICT) properties that are highly sensitive to polarity by designing the N,N-dimethylamino group as the electron donor and the quinoline cation unit as the electron acceptor. MQA-P is used for ferroptosis or cancer diagnosis in vitro and in vivo via dual-channel images .
Cat. No.: HY-D3150
CAS No.: 905306-19-6
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di-SFA is a fluorescent probe used to measure transmembrane potential (Vm) across the plasma membrane. di-SFA contains a 3-hydroxychromone fluorophore that undergoes excited-state intramolecular proton transfer (ESIPT), producing dual emission from the normal (N*) and tautomeric (T*) states. di-SFA inserts deeply into the hydrophobic region of lipid bilayers. The sulfonate groups give di-SFA a double negative charge in aqueous media. Ratiometric measurements are performed in lipid vesicles using Ex/Em = 450/527 nm and Ex/Em = 450/605 nm.
Cat. No.: HY-D3101
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Nile-TPA is a fluorescent probe for polarity detection, which can be used for lipid droplet targeting, cell polarity analysis, in vivo polarity imaging, and blood polarity monitoring in circulating tumor mouse models. The detection mechanism of Nile-TPA relies on the dual intramolecular charge transfer (ICT) effect generated by the electron-donating triphenylamine and Nile Red moieties and the electron-withdrawing carbonyl group; this probe emits strong red fluorescence in a low-polarity environment, and as polarity increases, the fluorescence intensity decreases and a red shift occurs due to changes in the excited-state dipole moment. In spectral tests, its excitation wavelength is 540 nm, and the emission wavelength varies in the range of 550-800 nm depending on solvent polarity; for cell, zebrafish and mouse imaging, Ex/Em = 561/570-620 nm, and for in vivo mouse imaging, Ex/Em = 560/620 nm .
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Protocols
Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!A suitable model is crucial in drug screening experiments. Organs can mimic the three-dimensional functional structure of internal organs, have similar spatial organization to corresponding organs, maintain some key characteristics, and reproduce some physiological functions. They are widely used for modeling and personalized drug screening physiological functions.2025-02-06
