63 Results for "

quenched probe

" in MedChemExpress (MCE) Product Catalog:
Products (63)

63 Results for "quenched probe" in MCE Product Catalog:

17
17 Publications Verification
Cat. No.: HY-126823
CAS No.: 234075-45-7
Purity:  95.33%
Synonyms: PGSK diacetate (5/6-mixture)
Target:  

Fluorescent Dye

Research Areas:  

Others

Phen green SK (PGSK) diacetate (PGSK diacetate (5/6-mixture)) is a metal ion-sensitive fluorescent probe that can penetrate cell membranes. Phen green SK (PGSK) diacetate can react with a variety of metal ions, including Fe 2+, Cd 2+, Co 2+, Ni 2+, Zn 2+, etc. Phen green SK (PGSK) diacetate chelates Fe 2+, resulting in fluorescence quenching, which can be restored when a membrane-permeable chelator is added, thereby reflecting the changes in the intracellular chelatable iron pool. The excitation/emission maxima of Phen green SK diacetate are 507/532 nm, respectively .
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15
15 Cited Publications
Cat. No.: HY-D0040
CAS No.: 1461-15-0
Synonyms: Fluorexon
Calcein is a fluorescent dye and self-quenching probe, used as an indicator of lipid vesicle leakage, and also as a complexometric indicator for titration of calcium ions with EDTA, and for fluorometric determination of calcium. Calcein cannot directly cross the intact cell membrane of a living cell, unlike Calcein-AM (HY-D0041) which is cell-permeable. Calcein can also be used as a model drug for evaluating efficiency and bioavailability of drug delivery systems .
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11
11 Cited Publications
Cat. No.: HY-W074143
CAS No.: 36309-88-3
Synonyms: [Ru(DPP)3]Cl2
Tris(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 (S2O8 2-) 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 .
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8
8 Cited Publications
Cat. No.: HY-D0720
CAS No.: 2315-97-1
Synonyms: NSC-151912; L-6868
Lucigenin is a chemiluminescence probe. Lucigenin can be used to detect the production of endogenous superoxide anion radical (O 2-). Lucigenin is extremely sensitive to chloride ions, while it combined with chloride ions, the fluorescence will be quenched. Lucigenin also can be used as a chloride indicator. Ex/Em=455/505 nm .
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1
1 Cited Publications
Cat. No.: HY-W127703
CAS No.: 65603-19-2
Octadecyl Rhodamine B chloride is an amphiphilic fluorescent probe with both membrane-binding ability and fluorescent properties, which easily forms aggregates in aqueous phase leading to self-quenching. Octadecyl Rhodamine B chloride can be used for cell membrane staining and further applied in membrane biology research. The maximum absorption/emission wavelengths of Octadecyl Rhodamine B chloride monomer in Triton X-100 are 565 nm/585 nm; the absorption peaks of aggregates in water are blue-shifted to 524 nm and 574 nm, with significantly quenched fluorescence .
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1
1 Cited Publications
Cat. No.: HY-W127716
CAS No.: 136724-73-7
Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 is a potent ruthenium-based dye. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can bu used as an effective quencher of quantum dots (QDs) fluorescence and the capture probe of virus antigen EV71. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can be used sensitive electrogenerated chemiluminescence (ECL) labels for detection of matrix metalloproteinases (MMPs) .
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1
1 Cited Publications
Cat. No.: HY-D1050
CAS No.: 82321-04-8
Synonyms: 6-(2,4-Dinitrophenyl)aminohexanoic acid, succinimidyl ester
DNP-X, SE (6-(2,4-Dinitrophenyl)aminohexanoic acid, succinimidyl ester), the DNP-X acid modified by succinimidyl ester, is an amine-reactive building block for developing a probe, which can be recognized by anti-DNP antibodies. DNP-X, SE (6-(2,4-Dinitrophenyl)aminohexanoic acid, succinimidyl ester) is also an excellent amine-reactive FRET quencher paired with Trp or Tyr.
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1
1 Cited Publications
Cat. No.: HY-W007671
CAS No.: 1080-06-4
H-Tyr-OMe is an amino acid derivative and also a coordinating ligand for Cu II ions. H-Tyr-OMe can serve as a surface functionalization reagent for carbon dots, and is used to prepare fluorescent probes for biothiol sensing. H-Tyr-OMe is oxidized to quinone under the catalysis of Tyrosinase via its phenolic hydroxyl group, which quenches the fluorescence of carbon dots. H-Tyr-OMe contains potential coordination sites, including carboxyl, amino and phenolic hydroxyl groups .
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1
1 Cited Publications
Cat. No.: HY-W012228
CAS No.: 3417-91-2
Research Areas:  

Others

H-Tyr-OMe.HCl is an amino acid derivative and also a coordinating ligand for Cu II ions. H-Tyr-OMe.HCl can serve as a surface functionalization reagent for carbon dots, and is used to prepare fluorescent probes for biothiol sensing. H-Tyr-OMe.HCl is oxidized to quinone under the catalysis of Tyrosinase via its phenolic hydroxyl group, which quenches the fluorescence of carbon dots. H-Tyr-OMe.HCl contains potential coordination sites, including carboxyl, amino and phenolic hydroxyl groups .
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Cat. No.: HY-43520
CAS No.: 165599-63-3
BODIPY-FL is a green fluorescent dye that can be used to label probes or primers. BODIPY-FL fluorescence can be quenched after interacting with uniquely positioned guanine, making it useful for quantifying specific DNA or RNA molecules. The maximum absorption wavelength of BODIPY-FL is 505 nm, and the maximum emission wavelength is 513 nm .
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Cat. No.: HY-W012642
CAS No.: 452-06-2
2-Aminopurine, a fluorescent analog of guanosine and adenosine, is a widely used fluorescence-decay-based probe of DNA structure. When 2-Aminopurine is inserted in anoligonucleotide, its fluorescence is highly quenched by stacking with the natural bases. 2-Aminopurine has been used to probe nucleic acid structure and dynamics .
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Cat. No.: HY-D1045
CAS No.: 6268-49-1
Synonyms: DABCYL; Para-methyl red
Dabcyl acid (Dabcyl) is a nonfluorescent chromophore and a quencher. Dabcyl acid can be used as molecular beacon nucleic acid probes to recognize and report the presence of specific nucleic acids in homogeneous solutions .
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Cat. No.: HY-162543
CAS No.: 384833-00-5
Synonyms: 18:1 Lissamine rhodamine PE
Target:  

Fluorescent Dye

Research Areas:  

Others

18:1 Liss Rhod (18:1 Lissamine rhodamine) PE is a fluorescent phospholipid and fluorescent probe.18:1 Liss Rhod PE admixes into phospholipid inks for large-scale monitoring of dip-pen nanolithography-generated lithographic structures via fluorescence microscopy.18:1 Liss Rhod PE undergoes phase separation or self-quenching under certain conditions in thin lipid membrane stacks .
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Cat. No.: HY-D2365
CAS No.: 304014-13-9
QSY 21 NHS is a dark quencher and an efficient energy transfer acceptor for far-red and near-infrared fluorescent probes. QSY 21 NHS operates at a wavelength range of 540-750 nm and is commonly used in FRET applications. QSY 21 NHS does not fluoresce under normal conditions. The NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides and other amine-containing molecules. QSY 21 NHS can be conjugated with dendritic poly-L-lysine to achieve intramolecular quenching of Cy5 fluorescence .
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Cat. No.: HY-149931
CAS No.: 1458731-58-2
Target:  

Fluorescent Dye

Research Areas:  

Cancer

BMV109 is a quenched probe that becomes fluorescent when cleaved and covalently bound by active cathepsin proteases. BMV109 can be exploited for tumor imaging .
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Cat. No.: HY-D1590
CAS No.: 929679-22-1
Target:  

Fluorescent Dye

Research Areas:  

Others

ODIPY Green 8-P2M is a novel thiol-reactive fluorescence probe based on the BODIPY fluorophore, the fluorescence is strongly quenched by d-PeT and then can be restored after reaction with thiol, resulting in an extremely high signal-to-noise ratio. ODIPY Green 8-P2M can be useful for detecting extremely low concentrations of protein in the gel after SDS-PAGE .
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Cat. No.: HY-D2864
Aza-CyBz is a NaCl-responsive near-infrared heptamethine cyanine fluorescent probe. Aza-CyBz has an excitation wavelength of 740 nm and detects signals in the range of 760-900 nm. NaCl induces Aza-CyBz to form ordered aggregates, resulting in fluorescence quenching. Aza-CyBz shows no obvious response to interfering substances such as plant carbohydrates, hormones, PEG and ROS. Aza-CyBz can enter plant mitochondria and reflect changes in their salt concentration, and can be used for visual imaging of salt stress in Arabidopsis thaliana root tips and living plants .
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Cat. No.: HY-W001952
CAS No.: 15231-91-1
6-Bromo-2-naphthol is an RTP (real-time polymerase chain reaction) probe that forms a 1:1 or 2:1 complex with β-cyclodextrin (β-CD). 6-Bromo-2-naphthol is capable of real-time monitoring of PCR reactions and quantification of specific nucleic acid sequences. RTP probes are a class of small DNA or RNA sequences labeled with fluorescent dyes and quencher molecules, which can be widely used in gene expression analysis, SNP genotyping, and pathogen detection. 6-Bromo-2-naphthol embeds into the cyclodextrin cavity through hydrophobic interactions, inhibits the oxygen quenching effect, and emits a phosphorescent signal at room temperature. 6-Bromo-2-naphthol can also be used as an intermediate for the synthesis of antibacterial azo dyes, and its derivatives show antibacterial activity against Staphylococcus aureus, Escherichia coli and other bacteria .
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Cat. No.: HY-D1450
CAS No.: 155613-98-2
Synonyms: S01448
Target:  

Fluorescent Dye

Research Areas:  

Cancer

IR-1048 is a nitroreductase (NTR)-responsive near-infrared fluorescence (NIR)/photoacoustic (PA) imaging probe and photothermal agent. IR-1048 is coupled with a nitroimidazole group to form IR-1048-MZ. IR-1048-MZ is catalytically reduced by NTR in a hypoxic environment, restoring strong near-infrared absorption and fluorescence emission (NIR II window), while activating the photothermal effect. IR-1048 relies on NTR-mediated electron transfer to relieve intramolecular fluorescence quenching, achieving specific imaging and photothermal ablation of tumor hypoxic areas. IR-1048 is mainly used for high-contrast NIR II/photoacoustic imaging and photothermal therapy research and tumor diagnosis of the tumor hypoxic microenvironment .
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Cat. No.: HY-D1045A
CAS No.: 845-46-5
Synonyms: DABCYL sodium; Para-methyl red sodium
Dabcyl acid sodium (DABCYL sodium) is a nonfluorescent chromophore and a quencher. Dabcyl acid sodium can be used as molecular beacon nucleic acid probes to recognize and report the presence of specific nucleic acids in homogeneous solutions .
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