Water shortage has risen severely in recent years, confronting mankind with a worldwide challenge, especially as the accessible water resources are further limited by diverse contamination. The most widespread industrial process for treatment is activated sludge process, which, however, excessive production become an enormous environmental problem worldwide. To overcome this problem, hydrogels ...

Development of efficient antibacterial agents is critical for human health. In the present study, we investigated the antibacterial activity of polyethyleneimine (PEI)-capped silver nanoclusters (PEI-AgNCs), based on the fact that nanoclusters normally have higher surface-to-volume ratios than traditional nanomaterials and PEI itself has a strong antimicrobial capacity. We synthesized stable si...

Sir, A bone cement mantle is commonly used in orthopaedic surgery, and creates an ideal environment for bacterial growth. Bacterial infection following joint replacement surgery is a catastrophic complication. It is estimated that infections occur in up to about 2% of primary hip and knee replacements, whereas revision surgery carries a 2–3-fold higher risk. The most common bacteria isolated fr...

Three subspecies of RNA polymerase II, designated IIO, IIA, and IIB, have been described in calf thymus and shown to differ in the apparent molecular weight of their largest subunits, designated IIo, IIa, and IIb, respectively. The objective of this study was to develop a procedure for the purification of RNA polymerase IIO. This form of the enzyme predominates in vivo and is responsible for th...

The efficient delivery of therapeutic genes into cells of interest is a critical challenge to broad application of non-viral vector systems. In this research, a novel TPGS-b-(PCL-ran-PGA) nanoparticle modified with polyethyleneimine was applied to be a vector of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and endostatin for cervical cancer gene therapy. Firstly, a novel biod...

Lecitase Ultra® solutions are mainly composed of bimolecular aggregates two open structures the enzyme. The immobilization and fixation these onto support surfaces is here proposed as a novel protocol for stabilization Lecitase. resulting derivatives were much more stable than diluted most them was obtained by covalent aggregate: 300-fold enzyme 75-fold adsorbed hydrophobic supports. aggregate ...