The effect of temperature on the ether content of the glycerophospholipids of Tetrahymena pyriformis W was examined. The only ether detected was 1-O-hexadecyl glycerol (alpha-chimyl alcohol). The data provide evidence that the class 1-O-alkyl-2-acyl-sn-glycero-3-(2-aminoethyl)-phosphate (1-alkyl PsE), in addition to the previously reported 1-O-alkyl-2-acyl-sn-glycero-3-(2-aminoethyl)-phosphonat...

Four polymerizable α-phosphonooxy phosphonic acids 7a, 7b, 9 and 16 were synthesized in seven steps. They were characterized by 1H, 13C and 31P NMR spectroscopy and by high-resolution mass spectroscopy. The copolymerization of acidic monomers 7a, 7b, 9 and 16 with 2-hydroxyethyl methacrylate was studied using a differential scanning calorimeter. Due to the presence of two acidic groups, those m...

Magnesium calcium phosphate biocement (MCPB) with rapid-setting characteristics was fabricated by using the mixed powders of magnesium oxide (MgO) and calcium dihydrogen phosphate (Ca(H(2)PO(4))(2).H(2)O). The results revealed that the MCPB hardened after mixing the powders with water for about 7 min, and the compressive strength reached 43 MPa after setting for 1 h, indicating that the MCPB ha...

Ceramics based on rhenanite CaNaPO4 with density of 0.94 g/cm3 and compressive strength 10.3 MPa was obtained via firing at 900 °C composite cement-salt stone prepared from a hardening powder mixture calcium citrate tetrahydrate Ca3(C6H5O7)2∙4H2O sodium dihydrogen phosphate NaH2PO4. The phase composition the samples cement–salt represented by monetite CaHPO4, unreacted tetrahydrate. According t...

The L-alanine family crystals such as pure L-Alanine, hydrochloride (HCl) mixed Lalanine, potassiumchloride (kcl) mixed l-alanine and potassium dihydrogen phosphate (kdp) mixed l-alanine have been successfully grown from the aqueous solution by slow evaporation method at room temperature. The grown crystals FT-IR spectral studies were recorded for each sample and the molecular vibrational frequ...

We report substantially enhanced biological stability of siRNA in a hydrated ionic liquid (IL) based on buffered choline dihydrogen phosphate (CDP). The results show that hydrated CDP IL substantially prolongs the shelf-life of siRNA for up to three months in the presence of RNase A. Remarkably, siRNA stored in the IL remained active and eGFP siRNA exhibited clear gene knockdown effects in eGFP...

A rapid, accurate RP Levocetirizine and phenylephrine separation was achieved on column Luna 5u C18 (20mm X 4mm) using mobile phase of methanol: Pot. Dihydrogen Phosphate Buffer (pH 6.0), (70:30) .The UV detection was performed at 251nm with flow rate of 1.0 mL Phenylephrine hydrochloride was found to be 8.42 min and 2.70 min with mean recovery 100.64 & 100.40% respectively. The proposed method...

Oligonucleotide (2-aminoethyl)phosphonates in which the backbone consisted of isomerically pure, alternating (2-aminoethyl)-phosphonate and phosphodiester linkages have been prepared and characterized. One of these single isomer oligonucleotides (Rp) formed a more stable duplex with DNA or RNA than its corresponding natural counterpart. Hybrid stability was more pH-dependent, but less salt-depe...