• TiO 2 nanoparticles modified by terephthalic acid in a supercritical CO . Effects of modifier ratio, temperature, and pressure were optimized RSM method. Modification is made molecules bonding chemically. rate obtained method was much higher. Modifier on the surface NPs affect their electrical property. This paper presents strategy for modification with carboxylic acids. The reaction between ...

Ghrelin is a peptide hormone that is acylated with a fatty acid, usually n-octanoic acid, at the third amino acid (aa) residue (usually a serine or threonine), and this acylation is known to be essential for ghrelin activity not only in mammals but also in non-mammals, such as fish. However, the modification mechanisms of ghrelin modification in fish are not known. In this study, we elucidated ...

An O-containing structure in coal can affect the pyrolysis process; however, influence of introduced functional groups has rarely been investigated. To study this issue, two kinds representative were selected for superfine pulverization and chemical oxidation. The 13C-NMR FTIR experiments demonstrated that groups, such as carboxyl, could be added into carbon skeleton after 5 wt% peracetic acid ...