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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
8 Results for "
excited-state charge transfer
" in MedChemExpress (MCE) Product Catalog:
Products (8)
8 Results for "excited-state 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-D3090
CAS No.: 2757682-04-3
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NRLD is a lipid droplet-targeting solvatochromic fluorescent probe developed based on Nile Red (HY-D0718), which can target lipid droplets and sense the non-polar lipid microenvironment inside lipid droplets. NRLD exhibits superior lipid droplet-targeting selectivity compared to the parent Nile Red dye in HeLa cell imaging. NRLD achieves detection relying on the solvatochromic effect generated by excited-state charge transfer, and its emission wavelength shifts according to the local polarity changes of the microenvironment it locates in: the more compact and ordered the lipid packing and the lower the environmental polarity, the more blue-shifted the emission; the looser the lipid packing or the stronger the hydration and the higher the environmental polarity, the more red-shifted the emission. NRLD shows blue shift in the non-polar oil core of lipid droplets and red shift in high-polarity environments such as phosphate buffer .
Cat. No.: HY-D3093
CAS No.: 2757682-02-1
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NRERcl is a Golgi-targeting lipid order probe. NRERcl can be used for imaging the lipid order and polarity of the endoplasmic reticulum. NRERcl carries a propyl chloride targeting group that directs it to the endoplasmic reticulum, and it functions via excited-state charge transfer, emitting colors according to local polarity changes associated with lipid order. NRERcl partitions into lipid membranes, with a higher fluorescence quantum yield in membrane environments than in aqueous buffers; its excitation wavelength is 520 nm, and the emission maximum varies with the environment (Ex/Em = 520/584-653 nm) .
Cat. No.: HY-D3092
CAS No.: 2757682-01-0
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NRERf is an endoplasmic reticulum (ER)-targeted solvatochromic fluorescent probe based on Nile Red (HY-D0718). It possesses ER-targeting capability and can sense changes in local polarity and lipid order of biological membranes. NRERf undergoes excited-state charge transfer, with its emission color changing according to local polarity: the tightly packed, low-polarity liquid-ordered phase (Lo) induces a blue-shifted emission, while the high-polarity liquid-disordered phase (Ld) induces a red-shifted emission. The emission wavelength of NRERf varies with the environment. NRERf can be used to detect changes in lipid order and polarity induced in the ER by cholesterol extraction/enrichment, oxidative stress, and hyperosmotic shock .
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
