Research Abstracts

A new approach of selective membrane-based separation has been developed by coating molecularly imprinted nanoparticles onto the surface of a membrane disc whereby a selective composite membrane shall be realized. The imprints at the surface of the nanoparticles are comparable to footprints of speci

To be able to concentrate or selectively separate small molecules using chemical energy alone would be of considerable interest. In nature, biomembranes are capable of doing just this. The new concept of artificial enzymatic pumps has allowed the development of artificial biomimetic membranes capabl

Surface modifying macromolecules (SMMs) were synthesized and blended into the casting solution of polyethersulfone (PES) membranes. The solution was cast to films on the glass plate. The cast films were placed in a temperature-controlled oven with forced air circulation to remove the solvent, before

For affinity separation filtration we developed a tailored membrane based on covalently bound receptors such as proteins like recombinant Protein A (rPA). Microfiltration membrane pores were grafted with thin layers containing epoxy groups using photopolymerization. We compared two types of membrane

Molecular imprinting of polymers, a cross-linking polymerization of functional monomers in presence of a template, yields synthetic materials mimicking the function of biological receptors [1]. The controlled photoinitiated synthesis of thin layers of molecularly imprinted polymers (MIPs) [2] offers

Molecularly imprinted polymeric membranes were prepared from various oligopeptide tweezers by adopting Boc-D-Trp as a print molecule. Molecularly imprinted membranes recognized the D-isomer of Ac-Trp, of which absolute configuration was the same as that of the print molecule, from racemic Ac-Trp mix

Continuous enzymatic reaction has been proven as an efficient technique for several industrial applications. In this study, a type of hollow fiber membrane bioreactor where penicillin acylase entrapped within membrane pores was applied to continuously hydrolyze Penicillin G. The influences of variou

The application of laccase and manganese-dependant peroxidase (MnP) from Trametes versicolor to facilitate removal of aromatic hydrocarbons from a petrochemical industrial effluent was investigated. The enzymes were immobilised onto polysulphone ultrafiltration membranes thus facilitating enzyme-sub

An enzymatic reaction in ionic liquids was studied with a special attention to the water content. Water, as a byproduct of the esterification by lipase should be removed to enhance the synthesis. Pervaporation was studied for water removal in integrated system.

Fermentations, utilizing a membrane bioreactor (MBR) can be advantageous as cells are retained in the vessel while soluble products are continuously withdrawn. It can be operated at high cell density, which allows increased productivity. Since hydraulic and solids residence times are independent of