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Citations & References (24)
Invitrogen™
DAF-FM (4-Amino-5-Methylamino-2',7'-Difluorofluorescein)
DAF-FM is a reagent that is used to detect and quantify low concentrations of nitric oxide (NO). It is essentiallyRead more
| Catalog Number | Quantity |
|---|---|
| D23841 | 1 mg |
Catalog number D23841
Price (CNY)
11,936.00
Each
Quantity:
1 mg
Price (CNY)
11,936.00
Each
DAF-FM is a reagent that is used to detect and quantify low concentrations of nitric oxide (NO). It is essentially nonfluorescent until it reacts with NO to form a fluorescent benzotriazole. DAF-FM fluorescence can be detected by any instrument that can detect fluorescein, including flow cytometers, microscopes, fluorescent microplate readers and fluorometers.
DAF-FM Specifications:
- Ex/Em of DAF-FM: ∼495/515 nm
- Lyophilized product should be dissolved using DMSO and then added to an aqueous buffer to create a working solution
- DAF-FM can be introduced into cells by pressure injection or perfusion from a patch-clamp pipette (choose DAF-FM diacetate if you need a cell-permeant version)
- Buffers containing bovine serum albumin (BSA) and phenol red may affect the fluorescence and should be used with caution
- The fluorescence quantum yield of DAF-FM is ∼0.005, but increases about 160-fold, to ∼0.81, after reacting with NO
Applications of DAF-FM:
- Assessment of NO production in transaldolase-deficient lymphoblasts by flow cytometry
- Detection of NO accumulation in embryonic cortical neurons following neurotrophin stimulation
- in vivo imaging of NO in zebrafish
- Intravital microscopic detection of NO generation associated with angiogenesis in mice
- Quantitation of ATP-induced NO release in rabbit platelets
Important Advantages of DAF-FM Over DAF-2
The spectra of the NO adduct of DAF-FM are independent of pH above pH 5.5. Also, the NO adduct of DAF-FM is significantly more photostable than that of DAF-2, which means additional time for image capture. Finally, DAF-FM is a more sensitive reagent for NO than is DAF-2 (NO detection limit for DAF-FM ∼3 nM versus ∼5 nM for DAF-2).
Probes for Nitric Oxide Research
We offer several products for the detection of reactive oxygen species (ROS) and nitric oxide (NO). Review these products in Probes for Nitric Oxide Research—Section 18.3 in the Molecular Probes™ Handbook.
For Research Use Only. Not for human or animal therapeutic or diagnostic use.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Quantity1 mg
Product TypeNO Indicator
Unit SizeEach
Citations & References (24)
Citations & References
Abstract
A stress surveillance system based on calcium and nitric oxide in marine diatoms.
Journal:PLoS Biol
PubMed ID:16475869
'Diatoms are an important group of eukaryotic phytoplankton, responsible for about 20% of global primary productivity. Study of the functional role of chemical signaling within phytoplankton assemblages is still in its infancy although recent reports in diatoms suggest the existence of chemical-based defense strategies. Here, we demonstrate how the accurate
Nitric oxide-dependent mitochondrial biogenesis generates Ca2+ signaling profile of lupus T cells.
Journal:J Immunol
PubMed ID:15356113
'Abnormal T cell activation and cell death underlie the pathology of systemic lupus erythematosus. Although mitochondrial hyperpolarization (MHP) represents an early and reversible checkpoint of T cell activation and apoptosis, lupus T cells exhibit persistent MHP. NO has recently been recognized as a key signal of mitochondrial biogenesis and mediator
Perfusate composition influences nitric oxide homeostasis in rat juxtamedullary afferent arterioles.
Journal:Acta Physiol Scand
PubMed ID:12940942
'AIM: Vascular diameters in isolated juxtamedullary nephron preparations perfused with cell-free solutions differ from those perfused with blood. In the present study, the effects of the albumin content of the perfusate on the afferent arteriolar diameter and endothelial nitric oxide were investigated in the isolated juxtamedullary nephron preparation perfused with
Mitochondrial nitric oxide synthase is not eNOS, nNOS or iNOS.
Journal:Free Radic Biol Med
PubMed ID:14607521
'Recent studies indicated that there is a distinct mitochondrial nitric oxide synthase (mtNOS) enzyme, which may be identical to the other known NOS isoforms. We investigated the possible involvement of the endothelial, the neuronal, and the inducible NOS isoforms (eNOS, nNOS, iNOS, respectively) in mitochondrial NO production. Mouse liver mitochondria
Nitric oxide does not trigger early programmed cell death events but may contribute to cell-to-cell signaling governing progression of the Arabidopsis hypersensitive response.
Journal:Mol Plant Microbe Interact
PubMed ID:14601664
'Nitric oxide (NO) has been suggested to play a role in the hypersensitive response (HR). Single- and double-label fluorescence microscopy experiments were conducted using Arabidopsis leaves infected with Pseudomonas syringae pv. tomato DC3000 carrying either avrB or avrRpt2. Kinetics of NO production were followed by measurement of green 4-amino-5-methylamino-2'',7''-difluorofluorescein (DAF-FM)