Results 11 to 20 of about 31,077 (251)

Polyphosphate Chain Stability in Magnesia-Polyphosphate Cements

MRS Proceedings, 1991
ABSTRACTPolyphosphates of the general formula NanH2PnO3n+1·H2O, n = 6, 15, 70, where n is the average degree of polymerization, have been synthesized and characterized by 31P NMR and HPLC. Aqueous solutions of these polyphosphates react at room temperature with magnesia to form cement pastes that harden to amorphous materials. The compressive strengths
E. D. Dimotakis, W. G. Klemperer, J. F. Young   +2 more
openaire   +2 more sources

Importance of polyphosphate in the Leishmania life cycle [PDF]

Microbial Cell, 2018
Protozoan parasites contain negatively charged polymers of a few up to several hundreds of phosphate residues. In other organisms, these polyphosphate (polyP) chains serve as an energy source and phosphate reservoir, and have been implicated in ...
Kid Kohl, Haroun Zangger, Matteo Rossi, Nathalie Isorce, Lon-Fye Lye, Katherine L. Owens, Stephen M. Beverley, Andreas Mayer, Nicolas Fasel   +8 more
doaj   +2 more sources

Polyphosphate-kinase-1 dependent polyphosphate hyperaccumulation for acclimation to nutrient loss in the cyanobacterium, Synechocystis sp. PCC 6803 [PDF]

Frontiers in Plant Science
Polyphosphate is prevalent in living organisms. To obtain insights into polyphosphate synthesis and its physiological significance in cyanobacteria, we characterize sll0290, a homolog of the polyphosphate-kinase-1 gene, in the freshwater cyanobacterium ...
Norihiro Sato, Mizuki Endo, Hiroki Nishi, Shoko Fujiwara, Mikio Tsuzuki   +4 more
doaj   +2 more sources

Polyphosphate and acidocalcisomes [PDF]

Biochemical Society Transactions, 2016
Inorganic polyphosphate (polyP) accumulates in acidocalcisomes, acidic calcium stores that have been found from bacteria to human cells. Proton pumps, such as the vacuolar proton pyrophosphatase (V-H+-PPase or VP1), the vacuolar proton ATPase (V-H+-ATPase) or both, maintain their acidity.
Noelia, Lander, Ciro, Cordeiro, Guozhong, Huang, Roberto, Docampo   +3 more
openaire   +2 more sources

Bacterial microcompartment-directed polyphosphate kinase promotes stable polyphosphate accumulation in E. coli [PDF]

, 2017
Processes for the biological removal of phosphate from wastewater rely on temporary manipulation of bacterial polyphosphate levels by phased environmental stimuli. In E.
Prentice, Michael B, Michael B. Prentice, Warren, Martin J, Warren, Martin J., Mingzhi Liang, Martin J. Warren, Frank, Stefanie, Heinrich Lünsdorf, Prentice, Michael B., Lünsdorf, Heinrich, Stefanie Frank, Liang, Mingzhi   +11 more
core   +4 more sources

Impacts of orthophosphate-polyphosphate blends on the dissolution and transformation of lead (II) carbonate [PDF]

, 2022
Phosphate addition is a popular strategy to minimize lead release. Despite continuous research on orthophosphate for lead control, studies exploring the complexity of the interaction between lead and orthophosphate-polyphosphate blends in drinking water ...
Aaron, Bleasedale-Pollowy, Benjamin F., Trueman, Graham A., Gagnon, Javier , Locsin, Evelyne, Doré   +4 more
core   +2 more sources

Inorganic polyphosphate enhances radio-sensitivity in a human non–small cell lung cancer cell line, H1299

Tumor Biology, 2017
Inorganic polyphosphate is a linear polymer containing tens to hundreds of orthophosphate residues linked by high-energy phosphoanhydride bonds. Polyphosphate has been recognized as a potent anti-metastasis reagent.
Kaori Tsutsumi, Yusuke Matsuya, Tomoki Sugahara, Manami Tamura, Satoshi Sawada, Sagiri Fukura, Hisashi Nakano, Hiroyuki Date   +7 more
doaj   +1 more source

Acclimation of Nodularia spumigena CCY9414 to inorganic phosphate limitation – Identification of the P-limitation stimulon via RNA-seq

Frontiers in Microbiology, 2023
Nodularia spumigena is a toxic, filamentous cyanobacterium capable of fixing atmospheric N2, which is often dominating cyanobacterial bloom events in the Baltic Sea and other brackish water systems worldwide.
Mariano Santoro, Mariano Santoro, Christiane Hassenrück, Matthias Labrenz, Martin Hagemann   +4 more
doaj   +1 more source

Plasma Gel Made of Platelet-Poor Plasma: In Vitro Verification as a Carrier of Polyphosphate

Biomedicines, 2023
Plasma gel (PG) is a blood-derived biomaterial that can be prepared by heating or chemical cross-linking without the aid of intrinsic coagulation activity and has gradually been applied in the field of esthetic surgery. To explore the applicability of PG
Masayuki Nakamura, Hideo Masuki, Hideo Kawabata, Taisuke Watanabe, Takao Watanabe, Tetsuhiro Tsujino, Kazushige Isobe, Yutaka Kitamura, Carlos Fernando Mourão, Tomoyuki Kawase   +9 more
doaj   +1 more source

Stress Resistance of Saccharomyces cerevisiae Strains Overexpressing Yeast Polyphosphatases

Stresses, 2022
Inorganic polyphosphate (polyP) is an important factor in the stress resistance of microorganisms. The polyphosphate-overexpressing strains of yeast S.
Nadeshda Andreeva, Lubov Ryazanova, Larisa Ledova, Ludmila Trilisenko, Tatiana Kulakovskaya   +4 more
doaj   +1 more source