by TdB Labs
Please send an e-mail to firstname.lastname@example.org if you would like to receive a quote, place a bulk order or if you wish to place your order manually.
FITC-CM-polysucroses are standard FITC-polysucroses carrying carboxymethyl-substituents. Polysucrose (renamed from Ficoll™) is a polymer which displays excellent biocompatibility. The CM (carboxymethyl) group gives the product anionic (negative) charge. All batches are checked for molecular weight, degree of substitution, loss on drying and free FITC. TdB Labs produces FITC-CM-polysucroses with a molecular weight of 70 kDa and 400 kDa and it is supplied as a yellow powder.
Can’t find what you are looking for? We can always produce a customised product for you.
Polysucrose is a polymer synthesised by cross-linking sucrose with epichlorohydrin. FITC-CM-polysucroses are manufactured by reacting selected polysucrose fractions with an activated carboxymethyl derivative in alkali whereby O-carboxymethyl groups are introduced along the polysucrose chain. The carboxyl content is approximately 5% which is equivalent to about one CM group for every five glucose units. Thereafter, fluorescein (FITC) groups are introduced by reaction with fluorescein isothiocyanate. Polysucrose has a more spherical structure and is less flexible compared to dextran.
FITC-CM-polysucrose has an excitation maximum of 490 – 495 nm and an emission maximum of 520 ± 5 nm at pH 9.
Storage and stability
FITC-CM-polysucrose is stable for more than 6 years when stored dry in well-sealed containers at ambient temperature.
FITC-CM-polysucrose dissolves readily in water.
FITC-CM-polysucroses are mostly used for studies of permeability and microcirculation. The carboxyl groups will impart an overall negative charge to the molecule, which may be valuable in gaining information on the permeability characteristics of cell membranes and tissues. FITC-CM-polysucrose has played an interesting role in elucidating the properties of the glomerular membrane.
If you need larger quantities please contact us for a bulk quotation.