Open-framework zinc phosphates with one-dimensional ladder structures are shown to transform, under simple reaction conditions, to twoand three-dimensional structures. Thus, the one-dimensional ladder, [C6N4H22]0.5[Zn(HPO4)2], I, on heating with piperazine in aqueous solution gives a layer phosphate, [C4N2H12][Zn2(PO4)2], III, and the three-dimensional phosphates [C2N2H10]0.5[Zn(PO4)], IV, [C6N...

Microalgae play an important role in arsenic (As) biogeochemical cycles as they are capable of accumulating and metabolizing this metalloid efficiently. This study aimed to investigate the toxicity, accumulation and transformation of arsenate (As(v)) in Dunaliella salina, an exceptionally halotolerant microalga, under various phosphate (PO4(3-)) regimes. The results of the 72-h toxicity test sh...

There are many biological contexts in which DNA damage generates "dirty" breaks with 3'-PO4 (or cyclic-PO4) and 5'-OH ends that cannot be sealed by DNA ligases. Here we show that the Escherichia coli RNA ligase RtcB can splice these dirty DNA ends via a unique chemical mechanism. RtcB transfers GMP from a covalent RtcB-GMP intermediate to a DNA 3'-PO4 to form a "capped" 3' end structure, DNA3'p...

The title compound, CaNi2Fe(PO4)3, was synthesized by solid-state reactions. Its structure is closely related to that of α-CrPO4 in the space group Imma. Except for two O atoms in general positions, all atoms are located in special positions. The three-dimensional framework is built up from two types of sheets extending parallel to (100). The first sheet is made up from two edge-sharing [NiO6] ...

Radioisotopes that emit electrons (beta particles), such as radioiodine, can effectively kill target cells, including cancer cells. Aqueous 32P[PO4] is a pure beta-emitter that has been used for several decades to treat non-malignant human myeloproliferative diseases. 32P[PO4] was directly compared to a more powerful pure beta-emitter, the clinically important 90Y isotope. In vitro, 32P[PO4] wa...

Biological, physical and chemical characteristics of the water column of a shallow (Zmax = 9.2 m), small (surface area 3.8 km2) residential and recreational lake near Prince George, British Columbia, indicated that the system was being loaded internally with phosphorus (P) from the sediments. The abundance of P released from the fine glaciolacustrine, and organic rich sediments was resulting in...

The use of cardioplegia during surgically induced ischemia greatly reduces myocardial metabolic requirements. However, adenosine triphosphate (ATP) depletion may occur, resulting in poor functional recovery after ischemia. This study investigated if augmentation of intracellular ATP could be achieved by delivering known ATP synthesis promoters (adenosine and/or phosphate) during cardioplegic ar...

A novel deoxyribose nucleic acid (DNA)-based photoelectrode consisting of DNA@Mn3(PO4)2 nanoparticles on graphene oxide (GO) sheets was successfully fabricated for photoelectrocatalysis. DNA served as a soft template to guide the nucleation and growth of Mn3(PO4)2 nanoparticles in the synthesis of Mn3(PO4)2 nanoparticles. More importantly, the DNA also serves as semiconductor materials to adjus...

Abstract. In this paper we present a Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (IMA-CNMNC)-accepted scheme for classification nomenclature triphylite group minerals. The general formula those minerals is M1M2TO4, where M1 M2 refer to cations in an octahedral coordination: = □, Na, Li; Mn2+, Fe2+, Mg, Fe3+, Mn3+, T tetrahedrally co...

An ionophore-doped sensing membrane phosphate (PO4) microsensor based on bis(dibromophenylstannyl)methane (Bis microsensor) is described. The Bis microsensor showed a Nernstian response. The response of the Bis microsensor was log-linear down to a monohydrogen phosphate ion (HPO42-) concentration of 0.5 μM (corresponding to 1.0 μM of orthophosphate at pH 7.2), whereas the detection limit of PO4...