This work aimed to overcome the main drawbacks of some essential anticancer drugs as 5-Fluorouracil (5-FU) by controlled loading with novel drug carriers. By a differential microemulsion technique, nanosized particles derived from copolymer poly(methyl methacrylate (MMA) and 2-hydroxyethyl (HEMA)) different monomer ratios have been synthesized used carrier. Poly(MMA-co-HEMA)/MWCNT nanocomposite...

The expressions of the isofunctional genes ubiD and ubiX of the ubiquinone biosynthetic pathway of Escherichia coli were compared under a variety of growth conditions and in several genetic backgrounds. LacZ operon fusions were constructed and were inserted in single copies into strain MC4100 and into its fnr, arcA or hemA carrying derivatives. During aerobic growth the expressions of both ubiD...

Managingin tersc hema knowledge isan essen tial taskwhen dealing withcoopera-tiv e information systems. W e prop osea logical approac h totheproblem ofboth expressing in tersc hema knowledge, and reasoning aboutit. Inparticular, we set up a logical language forexpressing seman tic in terdep endencies bet weenclasses belonging todifieren t database sc hemas,and sho w thatreasoning oversuc h in-t...

To improve biocompatibility of hydrophobic polymethyl methacrylate intraocular lens (PMMA IOL), 2-hydroxyethyl methacrylate (HEMA) was immobilized by UV-induced graft copolymerization method. The hydrophilicity and chemical composition of the PMMA IOL surface after each step of surfaces modification were analyzed by contact angle (CA) and X-ray photoelectron spectroscopy (XPS). The morphology o...

Growth of Bartonella henselae is strongly heme dependent, and B. henselae is unable to synthesize heme itself. At least five outer membrane-associated proteins from B. henselae bind hemin, including the 31-kDa protein designated Pap31. The gene of this protein was heterologously expressed in Escherichia coli M15(pREP4) and detected with monoclonal antibodies in the outer membrane fraction. Comp...

In this research, selective adsorption of U(VI) in aqueous solutionsin the presence of various lanthanide ions by using U(VI)-imprinted cryogel polymer was conducted. For this purpose, the prepared pHEMA-(MAH)3-U(VI) cryogel polymer by free radical polymerization method. U(VI) was desorbed with 5.0 mol/L HNO3 and thus U(VI)-imprinted were created onto p-HEMA-(...

In this study, the adsorption of tetracycline (TC) onto polymeric microbeads was investigated. For purpose, suspension polymerization used to synthesize poly(2-hydroxyethyl methacrylate) [poly(HEMA)] microbeads. Cibacron Blue F3GA (CB) covalently attached poly(HEMA) and were tested as an adsorbent for subsequent TC adsorption. The effects various parameters, such pH value, initial concentration...

This study analyzed the bond strength (BS) of HEMA versus HEMA-free self-etch adhesive systems to dentin. The occlusal surface of 20 third molars was removed and the dentin was abraded with 600-grit silicon carbide paper. The teeth were randomly assigned to 4 groups (n = 5) and restored with GO, Adper SE Plus, OptiBond All-In-One, and Clearfil 3S Bond adhesive systems and Filtek Z350 composite....

BACKGROUND Continuous glucose monitoring is crucial to developing a successful artificial pancreas. However, biofouling and host response make in vivo sensor performance difficult to predict. We investigated changes in glucose diffusivity and sensor response of optical enzymatic glucose sensors due to biological exposure. METHOD Three hydrogel materials, poly(2-hydroxyethyl methacrylate) (pHE...