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Merck

FD70

Sigma-Aldrich

Fluoreszeinisothiocyanat–Dextran

average Mw 59,000-77,000

Synonym(e):

FITC–Dextran

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About This Item

CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352201
NACRES:
NA.25

Biologische Quelle

bacterial (Leuconostoc mesenteroides)

Qualitätsniveau

Konjugat

FITC conjugate

Form

powder

Mol-Gew.

average Mw 59,000-77,000

Kennzeichnungsgrad

0.001-0.020 mol FITC per mol glucose

Farbe

light yellow to dark orange

Löslichkeit

water: 25 mg/mL

Lagertemp.

2-8°C

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Allgemeine Beschreibung

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran. Conflicting data on the branch lengths implies that the average branch length is less than three glucose units. However, other methods indicate branches of greater than 50 glucose units exist. Native dextran has been found to have a molecular weight (MW) in the range of 9 million to 500 million. Lower MW dextrans will exhibit slightly less branching and have a more narrow range of MW distribution. Dextrans with MW greater than 10,000 behave as if they are highly branched. As the MW increases, dextran molecules attain greater symmetry. Dextrans with MW of 2,000 to 10,000, exhibit the properties of an expandable coil. At MW below 2,000, dextran is more rod-like. The MW of dextran is measured by one or more of the following methods: low angle laser light scattering, size exclusion chromatography, copper-complexation and anthrone reagent colorometric reducing-end sugar determination and viscosity.

Anwendung

Dextran markiert mit Fluoresceinisothiocyanat für eine mögliche Verwendung in Perfusionstudien an Tieren.
FITC-dextran is used extensively in microcirculation and cell permeability research utilizing microfluorimetry. FITC-dextran has been used to study plant cell wall porosity and capillary permeability. Plasma proteins have been shown not to bind to FITC-dextran.
FITC-dextran is used in cardiovascular, microcirculation, perfusion, cell monolayer and cell membrane permeability research as fluorescent flux tracer compound that supports the measurement of processes such as blood flow, membrane damage, vascular drainage and renal elimination. Small FITC-dextrans are also used to measure processes such as endocytosis and cell junction permeability. FITC-dextran 70kDa (FD-70) may be used as a model compound for development of methods to deliver molecules into protoplasts and to study drug release from structures such as hydrogels and liposomes. It may be used in microvascular and cell monolayer permeability studies.

Verpackung

Bottomless glass bottle. Contents are inside inserted fused cone.

Angaben zur Herstellung

Sigma typically tests the solubility of FITC dextrans in water at concentrations at or above 25 mg/ml. Solutions should be protected from light. In vivo, FITC-dextran is stable for more than 24 hours.

Sonstige Hinweise

To gain a comprehensive understanding of our extensive range of Dextrans for your research, we encourage you to visit our Carbohydrates Category page.

Piktogramme

Exclamation mark

Signalwort

Warning

Gefahreneinstufungen

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


Analysenzertifikate (COA)

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Die Dokumentenbibliothek aufrufen

Chengyun Yan et al.
Drug delivery and translational research, 7(3), 408-415 (2017-03-18)
In search of an effective and less toxic absorption enhancer, we synthesized primary amine acetylation of generation 2 polyamidoamine (G2 PAMAM) dendrimer (Ac-G2) by the reaction of G2 PAMAM dendrimer with acetic anhydride, and evaluated the effects of Ac-G2 on
Mahmoud Soliman et al.
Scientific reports, 8(1), 13931-13931 (2018-09-19)
Intestinal epithelial tight junctions (TJ) are a major barrier restricting the entry of various harmful factors including pathogens; however, they also represent an important entry portal for pathogens. Although the rotavirus-induced early disruption of TJ integrity and targeting of TJ
Rodrigo Aviles-Espinosa et al.
Biomedical optics express, 2(4), 739-747 (2011-04-13)
We present a portable ultrafast Semiconductor Disk Laser (SDL) (or vertical extended cavity surface emitting laser-VECSELs), to be used for nonlinear microscopy. The SDL is modelocked using a quantum-dot semiconductor saturable absorber mirror (SESAM), delivering an average output power of
Jia Wei et al.
Pediatric research, 78(1), 29-37 (2015-03-26)
Necrotizing enterocolitis (NEC) is associated with loss of neurons and glial cells in the enteric nervous system (ENS). Our goal was to determine whether enteric neural stem cell (NSC) transplantation, in conjunction with heparin-binding epidermal growth factor-like growth factor (HB-EGF)
Raymond L. Kao et al.
Canadian journal of surgery. Journal canadien de chirurgie, 61(6), S208-S218 (2018-11-13)
Acute lung contusion from blunt chest trauma (BCT) is characterized by an intense inflammatory response in the pulmonary parenchyma, which is associated with acute lung injury (ALI), acute respiratory distress syndrome and ventilator-associated pneumonia. We hypothesized that aerosolized indomethacin may

Artikel

Additional information about FITC-labelled polysaccarides including FITC-Dextran, FITC-DEAE-dextran (FDD), FITC-carboxymethyl-dextran (FCM-Dextran). This page discusses the impact of weight-average molecular weight on the respective molecule dimensions and other physical properties

Verwandter Inhalt

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran.

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