Regenerated Cellulose Membranes
Buy Regenerated Cellulose Syringe Filters made up of pure cellulose cuoxam mixed with polyethylene glycol or PEG along with gelatin which acts as the pore former. These types of membranes have great potential for microfiltration processes of aqueous and organic solutions.
These are different from Cellulose Acetate membranes in that they contain purer form of cellulose and possess a lower molecular weight.
Here are some aspects about Regenerated Cellulose filtration membranes and their varied applications.
Characteristics of RC Membranes
RC membranes are hydrophilic in nature and are resistant to solvents as well as aqueous solutions which have pH values ranging between 3 and 12. They possess optimum wetting strength and therefore can be wetted easily, a factor which helps in quick filtration process. They can be sterilized by almost all methods and are have low non-specific adsorption.
RC membranes depict more stability in reaction with organic solvents and possess low protein binding characteristics. They are pre-cut and then rinsed with buffer and deionized water before being ready for using in filtration.
Applications of Regenerated Cellulose
Regenerated Cellulose membranes have widespread usage in the pharmaceutical and medical industries because of their minimal fouling characteristic, biocompatibility and solvent-resistant feature. Since the standard RC membranes are essentially made of purest form of cellulose that is derived from cotton linters the membranes are apt for a wide spectrum of laboratory dialysis applications. The symmetric porosity of the membranes makes them perfect medium for buffer exchanges, desalting, macromolecular purifications and the likes.
Although the usage of RC membranes as microfiltration and ultrafiltration media has been known for years, their avenues of applications are being widened to cover nanofiltration processes as well. In order to prepare RC membranes for such filtration procedures they require possessing high performing capacity along with being composite. To accomplish this attempts have been made the new high potential RC membranes were created by undergoing acidic hydrolysis of films made of trimethylsilyl cellulose that have been dip-coated.
The TMSC was prepared prior to this from exposing microcrystalline cellulose with hexamethyldisilazane under LiCl/DMAC solvent in homogenous conditions. The effects revealed higher values of TMSC and evaporation tended to be favorable in creating membranes with Molecular Weight Cut-Offs because of the selective layer thickness.
Further cross-linking of the newly-prepared membranes with solutions of glyoxal under the catalytic effect of Boric Acid gave the desirable Molecular Weight Cut-Off of less than 250 Daltons.
The membranes thus created have great potential to separate organic solutes from solvent streams used in pharmaceutical and medical industries. Because of the hydrophilicity, these Regenerated Cellulose Membranes also depict higher fluxes and fouling resistance than other nanofiltration membranes in aqueous applications.
Tisch Scientific offers an array of Regenerated Cellulose membranes from one of the top brands of the world Whatman, which is known for optimal performance and reliability.