Fluorescent Dye
Fluorescence is a phenomenon of photoluminescence in luminescence. When an atom is irradiated by light, some electrons around the nucleus jump from their original orbitals to higher energy orbitals under the influence of light energy, i.e., from the ground state to the first or second excited single-line state, etc. Due to the instability of the first or second excited singlet state, the electron returns from the excited singlet state to the ground state accompanied by released energy, resulting in fluorescence.
Fluorescent dyes can be covalently bound or physically adsorbed in the structure of the substance. The fluorescence properties allow for the characterization, localization and quantitative analysis of the labeled object. Fluorescent dyes have shown great potential for the detection of proteins, nucleic acids, cells, and immunoassays, attributed to the advantages in non-radioactive contamination, simple experimental operation and easy observation.
Fluorescent dyes have penetrated many fields such as pharmacology, physiology, environmental science, and information science, as well as functional studies of proteins and drug screening.
All Product Categories
-
Fluorescent Dye Related Products (4851)
Related Products (4851)
-
Antibodies (4)
-
Fe2Orange
0 ImagesCat. No.: HY-D1913Purity: 98.0%Fe2Orange is a Fe2+ selective probe with an excitation wavelength of 543 nm and an emission wavelength of 580 nm. Fe2Orange emits fluorescence after binding to intracellular Fe2+, thereby achieving specific labeling of Fe2+. Fe2Orange is used to detect the content and distribution of Fe2+ in cells.
-
Biotin-4-aminophenol
0 ImagesBiotin-4-aminophenol is a biotin-phenol analog. Biotin-4-aminophenol generates free radicals and conjugates to tyrosine residues in proteins more efficiently and selectively than the previously reported BP1.
-
FITC-Dextran (MW 150000)
0 ImagesCat. No.: HY-128868GCAS No.: 60842-46-8FITC-Dextran (MW 150000) is a fluorescent probe for fluorescein isothiocyanate (FITC) dextran (Ex=491 nm; Em=518 nm). FITC-Dextran (MW 150000) can be used as a marker to reveal heat shock-induced cell damage and to study the early and late stages of apoptosis. FITC-Dextran (MW 150000) can be used in perfusion studies in animals or in fluorescence microlymphography, to study processes that affect the permeability of the blood brain barrier (BBB). FITC-Dextran (MW 150000) can be used as fluorescent probe to study cell permeability.
-
WST-8
0 ImagesWST-8 is a water-soluble tetrazolium dye, WST-8 enhances sensitivity of the WST-8-based assay over the conventional MTS-based assay.
-
Dansyl chloride
0 ImagesDansyl chloride is a reagent that produces stable blue or blue-green fluorescent sulfonamide adducts in the reaction of aliphatic and aromatic amines with primary amino groups, and is widely used for modified amino acids, protein sequencing and amino acid analysis.
-
WSP-5
0 ImagesWSP-5 is a H2S-selective fluorescent probe (Ex/Em = 502/525 nm). WSP-5 enables visual monitoring of H2S released and accumulated from peptide-H2S donor conjugates in glioma cells. WSP-5 is applicable to glioma research.
-
TAMRA azide, 5-isomer
0 ImagesTAMRA azide, 5-isomer is a click chemical containing azide groups that can be used as a linker for TAMRA. The azide group of TAMRA Azide, 5-isomer enables copper-catalyzed click chemical reactions with alkynes, DBCO, and BCN. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups (Ex/Em = 555/580 nm).
-
Luc Yellow CH dilithium
0 ImagesLuc Yellow CH dilithium is a high-intensity fluorescent probe containing free hydrazyl groups. Luc Yellow CH can react with fatty aldehydes at room temperature. Luc Yellow CH serves as a biological tracer to monitor neuronal branching, regeneration, gap junction detection and characterization, and selective ablation of cells after aldehyde fixation. Luc Yellow CH displays the maximum excitation/emission of 430 nm/540 nm, respectively.
-
Oil Red O
0 ImagesOil Red O is a fat-soluble diazol dye, with a maximum absorption at 518 nm. Oil Red O stains neutral lipids and cholesteryl esters but not biological membranes. Oil Red O can be used for detecting and quantifying hepatic steatosis in mouse liver biopsies. Oil Red O staining efficiently helps to visualize the radical changes that occur in tissues as metabolic disease occurs and progresses.
-
Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride
0 ImagesSynonyms: [Ru(DPP)3]Cl2Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride ([Ru(dpp)3]2+) is an electrochemiluminescent (ECL) probe and oxygen-sensitive sensor. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride can be used to modify electrode surfaces for the detection of sulfates (S2O82-) and oxalates, based on electrochemical reactions that generate excited-state species, releasing photons through irreversible redox reactions. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride utilizes the oxygen quenching of fluorescence mechanism, where fluorescence intensity reflects the metabolic rate of living microorganisms or oxygen levels within cells/tumors, allowing for real-time detection. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride's main applications include microbial detection, antibacterial activity studies, and tumor microenvironment research.
-
TMA-DPH
0 ImagesTMA-DPH is a hydrophobic fluorescent membrane probe (Ex=355 nm; Em=430 nm). TMA-DPH is able to anchor on the cell surface and localize to different regions of the phospholipid bilayer. By analyzing the fluorescence polarization values of TMA-DPH in the plasma membrane and membrane substructures, the fluidity of the cell membrane can be determined.
-
Fluorescein-5-maleimide
0 ImagesSynonyms: N-(5-Fluoresceinyl)maleimideFluorescein-5-maleimide (N-(5-Fluoresceinyl)maleimide) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm.
-
Acridine Orange 10-Nonyl Bromide
0 ImagesSynonyms: Nonylacridine orangeAcridine Orange 10-Nonyl Bromide is a fluorescent probe for cardiolipin (λex: 489 nm, λem: 525 nm).
-
Thiazole Orange
0 ImagesThiazole Orange is an asymmetric anthocyanin dye that can be coupled with oligonucleotides (ONs) to prepare fluorescent hybridization probes. Thiazole Orange has been widely used in biomolecular detection and staining of DNA/ RNA in gels and can be used for reticulocyte analysis. Thiazole orange generates a significant fluorescence enhancement and high quantum yield when it binds with nucleic acids, especially RNA. Thiazole orange can permeate living cell membranes. Thiazole orange can use UV light for detection, but can also be detected with blue light. The excitation and emission of Thiazole orange are λex = 510 nm (488 nm and 470 nm also show strong excitation) and λem = 527 nm, respectively.
-
Itaconate-alkyne
0 ImagesSynonyms: ITalkItaconate-alkyne (ITalk) is a specific bioorthogonal probe for quantitative and site-specific chemoproteomic profiling of Itaconation in living cells. Itaconate-alkyne, a functional analogue of Itaconate, exhibits comparable antiinflammatory effect with Itaconate and enables the labeling of bona fide targets of Itaconate. Itaconate-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
-
ER-Tracker Green
0 ImagesER-Tracker dye is a derivative of BODIPY series dyes coupled with Glibenclamide (HY-15206), highly selective binding to the endoplasmic reticulum, non-toxic to cells at low concentrations, this type of dye is an environmentally sensitive probe, and formaldehyde treatment can still retain part of the fluorescence, with high fluorescence life, good extinction coefficient and other characteristics. Glibenclamide is an atp-dependent K+ channel blocker (Kir6, KATP) and CFTR Cl-channel blocker that binds in the endoplasmic reticulum. ER-Tracker is not suitable for staining cells after fixation.
-
Ferrozine
0 ImagesFerrozine is a spectrophotometric reagent for iron ions, can react with divalent Fe to form a stable magenta complex species. The complex has an absorption peak at 562 nm. Ferrozine-based colorimetric assays can quantify iron in cells
-
Ninhydrin
0 ImagesNinhydrin can be used as a chromogenic analytical probe for the quantification of amino acids and proteins.
-
2′,7′-Dichlorofluorescein diacetate
0 Images2′,7′-Dichlorofluorescein diacetate (DCFH2-DA) is a cell-permeable fluorescent probe. 2′,7′-Dichlorofluorescein diacetate can be used to detect the generation of reactive oxygen intermediates and for assessing the overall oxidative stress in toxicological phenomenon.
