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.
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Fluorescent Dye Related Products (4894)
Related Products (4894)
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Antibodies (4)
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Cy3 NHS ester
0 ImagesSynonyms: Cyanine3 NHS esterCy3 NHS ester is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
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Fluorol Yellow 088
0 ImagesFluorol Yellow 088 is a fluorescent dye that can be used as a biological material or an organic compound for life science research. Fluorol Yellow 088 is suitable for lipid staining in plant tissues, particularly for the fluorescence imaging of suberized cell walls and hydrophobic structures, with an excitation wavelength of 365 nm and an emission wavelength of ≥420 nm.
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TMB
0 ImagesSynonyms: BM blue; Sure Blue TMBTMB is a non-toxic, non-mutagenic, colorless dye that is also used as a chromogenic agent in enzyme detection systems based on horseradish peroxidase (HRP). TMB can function as a photoacoustic probe for reactive oxygen and nitrogen species (ROS/RNS), reacting with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce blue oxidation products. TMB can detect the singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.
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Hoechst 33258
0 ImagesSynonyms: bisBenzimide H 33258; H 33258Hoechst 33258 is a blue to blue-green fluorescent live cell dye that can label DNA. Hoechst 33258 can specifically bind to the minor groove of DNA (and tends to bind to A/T-rich DNA), resulting in a significant increase in fluorescence intensity. Hoechst 33258 can cross the cell membrane and cause changes in DNA structure, such as G2/M phase arrest. Hoechst 33258 can bind to live or fixed cells, and the fluorescence intensity increases with increasing solution pH. As a DNA-specific probe, Hoechst 33258 can be used to detect DNA content, analyze cell cycle, etc. The excitation wavelength of Hoechst 33258 is 350-365 nm, and the emission wavelength is 460-490 nm.
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MKT-077
0 ImagesSynonyms: FJ-776MKT-077 (FJ-776), a highly water-soluble mitochondrial dye, has significant antitumor activity. MKT-077 exhibits low cytotoxicity, and inhibits broad-spectrum human cancer cell lines (colon cancer, breast cancer, pancreatic cancer). MKT-077 inhibits the growth of tumor in nude mice enograft tumor model. Ex/Em=488/543 nm.
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Fluorescent Brightener 28
0 ImagesFluorescent brightener 28 is a fluorescent whitening agent commonly used in the padding process of the textile industry. Fluorescent brightener 28 is capable of staining polysaccharides such as cellulose, and when the plasma membrane ruptures, it also weakly stains the cytoplasm and strongly stains the cell nucleus. Additionally, Fluorescent brightener 28 can be utilized to detect intracellular chitin in living cells. Fluorescent Brightener 28 also is a visible light emitting diode (LED)-light sensitive photoinitiator for free radical photopolymerizations.
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Mag-Fluo-4 AM
0 ImagesCat. No.: HY-D1498CAS No.: 1097709-31-3
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HBC
0 ImagesSynonyms: HBC 530HBC (HBC 530) is a GFP fluorophore-like synthetic dye, with a structurally rigid electron acceptor and a strong electron donor. HBC has a low fluorescence background, and when combined with Pepper (RNA aptamer), HBC forms a tight complex and activates and emits bright fluorescence (Kd of ~3.5 nM). HBC emission peaks vary in different complexes and covers the spectrum from cyan to red. HBC can be used in the live cell imaging of RNA (Em/Ex = 530/485 nm).
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BODIPY 505/515
0 ImagesBODIPY505/515 is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells. Maximum excitation/emission wavelength: 505/515 nm.
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Fluorescein Diacetate
0 ImagesSynonyms: 3,6-Diacetoxyfluoran; Di-O-acetylfluoresceinFluorescein diacetate is a cell permeable esterase-substrate. Fluorescein diacetate can be used as a fluorogenic substrate for hGSTP1-1.
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Rhodamine B hydrazide
0 ImagesRhodamine B hydrazide is a fluorescent derivative based on rhodamine B, containing the spirocyclic structure of Rhodamine B (HY-Y0016), which can be used to detect copper ions (Cu2+), mercury ions, peroxynitrite, hydroxyl radicals and nitric oxide (NO).
Excitation/emission wavelength:
Conventional detection: 510/578 nm.
Sulfite detection: 554 nm absorption, 574 nm emission (due to the formation of Rhodamine B fluorescent product).
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Z-Gly-Pro-AMC
0 ImagesZ-Gly-Pro-AMC is a fluorogenic substrate. Z-Gly-Pro-AMC is hydrolyzed by prolyl endopeptidase to generate highly fluorescent 7-Amino-4-methylcoumarin (HY-D0027). (λex=380 nm, λem=465 nm).
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Diphenyl Blue
0 ImagesDiphenyl Blue (Trypan Blue) is a cell active dye, the most commonly used dye for the identification of dead cells, of en used to test cell membrane integrity and cell viability. Diphenyl Blue staining is one of the methods for tissue and cell culture. When cells are deactivated or have incomplete cell membranes, Diphenyl Blue can stain them Blue. Normal living cells with intact cell membranes reject Diphenyl blue and do not stain them blue. However, macrophages are capable of phagocytosis of Diphenyl Blue, so it can be used as a living stain for macrophages.
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Vari Fluor 647-Streptavidin
0 ImagesCat. No.: HY-D1805Vari Fluor 647-Streptavidin is a dye marker of Vari Fluor-streptavidin consisting of labeling streptavidin with a Vari Fluor series of fluorescent probes. Streptavidin is a high-affinity tetramer protein, each tetramer consisting of four identical streptavidin subunits. Streptavidin binds to biotin specifically via a reversible non-covalent effect. Streptavidin can achieve rapid and efficient detection of biotin markers, and is often used in immunofluorescence (IF), enzyme-linked immunosorbent assay (ELISA), immunohistochemical staining (IFH), in situ hybridization (ISH) and other experiments. Ex/Em=650 nm/665 nm.
Product Concentration: 0.8 mg/mL
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Cyanine5.5 amine
0 ImagesSynonyms: Cy 5.5 amine; Lumiprobe Cy 5.5 amineCyanine5.5 amine (Cy 5.5 amine), a Cy5.5 Analogue, is a near-infrared (NIR) fluorescent dye (Ex=648 nm, Em=710 nm). Cyanine5.5 amine can be used in the preparation of Cy5.5-labeled nanoparticles, which can be tracked and imaged with low fluorescence background using confocal microscopy.
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LysoTracker Blue DND-22
0 ImagesLysoTracker blue DND-22 is a blue fluorescent dye (Ex/Em: 373/422 nm). LysoTracker blue DND-22 stains acidic regions in living cells. LysoTracker blue DND-22 is used in the researches of neurodegenerative diseases and leukemia.
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WST-1
0 ImagesCat. No.: HY-136976CAS No.: 150849-52-8WST-1 is a kind of water-soluble tetrazolium salt. WST induces the intracellular mitochondrial dehydrogenase to conduct NADH-dependent enzyme digestion reaction, releasing the water-soluble methyl benzene product. WST-1 can be used for the detection of cell proliferation and cytotoxicity, via the determination of the light absorption value at 450 nm.
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Sulforhodamine B sodium salt
0 ImagesSulforhodamine B sodium salt is a fluorescent dye with uses spanning from laser-induced fluorescence (LIF) to the quantification of cellular proteins of cultured cells.
