Water-based flow assurance issues include corrosion, scale, and gas hydrate formation. Chemical solutions to mitigate these usually require separate inhibitors, which sometimes can lead compatibility difficulties. Herein, we report studies on maleic-based copolymers combat corrosion with a view optimizing for scale inhibition also. The product of maleic anhydride:N-vinyl caprolactam copolymer r...

Multichain amide-bonded anionic amphiphilic oligomers consisting of dodecyl acrylamide and sodium acrylate (i.e., xC₁₂AAm-yAA, where x and y represent the number of dodecyl acrylamide (C₁₂AAm) and sodium acrylate (AA) units, respectively) were synthesized via the radical oligomerization of two monomers in the presence of 2-aminoethanethiol hydrochloride. Equilibrium and dynamic surface tension,...

Objective: To design and evaluate efficient lipid-aminoglycoside conjugates for the delivery of genes for gene therapy, and also for the delivery of siRNA molecules to knock down gene expression in mammalian cells Methods: 3β-[5”-(aminoethanethiol)-neomycin B] carbamoyl cholesterol (NeoChol) was synthesized. The abilities of this novel compound to condense DNA and to form nanoparticles were stu...

Amphiphilic telomers with multiple sugar chains and a terminal undecyl or heptadecyl chain (i.e., C(n)Am-mGEMA, where n and m represent alkyl chain lengths of 11 or 17 with a degree of polymerization of 2.0 or 3.0 for glucosyloxyethyl methacrylate (GEMA) units, respectively) were synthesized via monomeric radical telomerization in the presence of 2-aminoethanethiol hydrochloride. Surface tensio...

The development of an imaging probe targeting b-amyloid (Ab) plaques in Alzheimer's disease labeled with technetium-99m, the most commonly used radioisotope for clinical diagnoses, has been strongly anticipated. In this study, we synthesized three novel Tc complexes with the phenylquinoxaline scaffold and evaluated their properties for imaging Ab plaques. The Tc and corresponding Re complexes w...

Memory devices play an important role in electronics market leading to a growing research interest in the next generation of non-volatile memory cells. Numerous groups [1,2] work on top-down memory cells based on fullerenes C60 that are generally embedded in insulating polymers where they act as storage sites. Beside these studies, a reaction path between amines and fullerenes [3] may be used t...

Many efforts in the development of platinum complexes as anticancer drugs have been contemplated in order to reduce the cytotoxicity and to improve the platin drug-resistance.1 Since sulfur-containing compounds such as glutathione and metallothioneins are rich in cells, the formation of the S–Pt bond is generally believed to be one of the major mechanisms in the resistance to cis-platin drugs i...

we give the concept of ‘braiding’ for 2-groupoids, and we show that this structure is equivalent tobraided regular, crossed modules.