The 5'-nucleotidase of Escherichia coli was shown to be located at the cell wall surface by histochemical techniques utilizing the deposition of inorganic phosphate. Penetration of the 5'-nucleotidase in the periplasmic space was seen only in cells treated with ethylenediaminetetraacetic acid (EDTA)-tris(hydroxymethyl)aminomethane (Tris). The 3'-nucleotidase of E. coli was also found to have a ...

From Figure A, protein bands on SurePAGE were more evenly distributed compared to competitor B’s Tris-Glycine gel, in which proteins in the middle parts of the gel were clustered. In addition, more bands were visualized on SurePAGE compared to both competitor B and homemade Tris-Glycine gels (zoomed panel). Lastly, SurePAGE offers slightly better resolution compared to Competitor T’s Bis-Tris g...

The reaction of TiCl3 ⋅ 3THF with perfluoropinacol (H2fpin), triethylamine and silver nitrite in acetonitrile yielded the formation first tris(perfluoropinacolato) complex a transition metal, (HNEt3)3[TiIV(fpin)3]NO2 (1). compound was fully characterized IR UV-vis spectroscopy as well elemental analysis single crystal X-ray diffraction. structure 1 is compared that known homoleptic titanium(IV)...

BACKGROUND α-Bromination of the side chain of aromatic ketones using NBS in the presence of p-toluenesulfonic acid (p-TsOH) in acetonitrile is very common. However, regioselective bromination of bis and tris(ω-bromoacetophenones) with NBS in the presence of p-TsOH in acetonitrile under microwave irradiation is quite novel. The bis- and tris(ω-bromoacetophenones) are used in synthesis of bis and...

Abstract. This study aims to treat juice industry wastewater and recover resources using purple non-sulfur bacteria (PNSB). Simulated was prepared used as a feedstock for PNSB. Carbon sources, including sucrose, fructose, glucose, tris-Na-citrate, were added different bottles separately inoculated with mixed culture of Tris-Na-citrate showed higher growth biomass production (650±70 mg/L) than t...

Two potentially tripodal ligands, tris(1-phenyl-1H-1,2,3-triazol-4-yl)phosphine oxide (OP(1,2,3Tz1?Ph)3) and tris(1-benzyl-1H-1,2,3-triazol-4-yl)phosphine (OP(1,2,3Tz1?benz)3), were used in reactions with [Re(CO)5Br] (NEt4)2[Tc(CO)3Cl3]. While the formation of rhenium complexes bidentate tridentate coordinated phosphine oxides was observed, for technetium only cationic OP(1,2,3Tz1?R) ligands is...

In the title complex, [Ni(C2N3)2(C9H24N4)], the Ni(II) atom is coordinated in a distorted octa-hedral geometry by one tris-(3-amino-prop-yl)amine (tris-apa) ligand and two dicyanamide (dca) ligands [one of them disordered in a 0.681 (19):0319 (19) ratio]. Inter-molecular N-H⋯N hydrogen bonds involving the N atoms of the dca anions and the tris-apa amine H atoms result in the formation of a thre...

The possibility of using tris(2-chloroethyl) phosphate, tris(1-chloro-2-propyl) phosphate and tris(4-methylphenyl) as effective plasticizers for epoxy polymers has been studied. As a result the research optimum content (40 parts by mass) determined, which best effect on strength fire safety properties composites. Modification polymer with presented influences carbonization process increasing ch...