Relevant bibliographies by topics / Copper polyphosphates

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Academic literature on the topic 'Copper polyphosphates'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Copper polyphosphates"

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Acevedo-López, José, Gabriela González-Madrid, Claudio A. Navarro, and Carlos A. Jerez. "Role of Polyphosphate as an Inorganic Chaperone to Prevent Protein Aggregation Under Copper Stress in Saccharolobus solfataricus." Microorganisms 12, no. 12 (2024): 2627. https://doi.org/10.3390/microorganisms12122627.

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Polyphosphates are biopolymers composed of phosphate monomers linked by high-energy phosphoanhydride bonds. They are present across all life domains, serving as a source of energy, metal chelators, and playing a crucial role in stress defense. In Escherichia coli, polyphosphates also function as inorganic molecular chaperones. The present study aims to investigate whether polyphosphate serves a similar chaperone function in archaea, using Saccharolobus solfataricus as a model organism. To this end, polyphosphate was extracted and quantified, the ADP/ATP ratio was determined, insoluble protein
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Alvarez, Sergio, and Carlos A. Jerez. "Copper Ions Stimulate Polyphosphate Degradation and Phosphate Efflux in Acidithiobacillus ferrooxidans." Applied and Environmental Microbiology 70, no. 9 (2004): 5177–82. http://dx.doi.org/10.1128/aem.70.9.5177-5182.2004.

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ABSTRACT For some bacteria and algae, it has been proposed that inorganic polyphosphates and transport of metal-phosphate complexes could participate in heavy metal tolerance. To test for this possibility in Acidithiobacillus ferrooxidans, a microorganism with a high level of resistance to heavy metals, the polyphosphate levels were determined when the bacterium was grown in or shifted to the presence of a high copper concentration (100 mM). Under these conditions, cells showed a rapid decrease in polyphosphate levels with a concomitant increase in exopolyphosphatase activity and a stimulation
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Vojvodić, Snežana, Marina Stanić, Bernd Zechmann, et al. "Mechanisms of detoxification of high copper concentrations by the microalga Chlorella sorokiniana." Biochemical Journal 477, no. 19 (2020): 3729–41. http://dx.doi.org/10.1042/bcj20200600.

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Microalgae have evolved mechanisms to respond to changes in copper ion availability, which are very important for normal cellular function, to tolerate metal pollution of aquatic ecosystems, and for modulation of copper bioavailability and toxicity to other organisms. Knowledge and application of these mechanisms will benefit the use of microalgae in wastewater processing and biomass production, and the use of copper compounds in the suppression of harmful algal blooms. Here, using electron microscopy, synchrotron radiation-based Fourier transform infrared spectroscopy, electron paramagnetic r
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Horbatiuk, N. "ASSESSMENT OF THE CHEMICAL CONDITION OF DRINKING WATER IN UKRAINE DURING THE WAR." Sciences of Europe, no. 123 (August 21, 2023): 6–8. https://doi.org/10.5281/zenodo.8266044.

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In March 2022, during the Russian aggression, shelling and shells hit water pumping stations, water pipes, and sewage treatment plants, which led to accidents and changes in the quality of drinking water. To determine the condition and safety of drinking water, we conducted a study of its chemical composition. The content of: total iron, manganese, copper, polyphosphates, chlorides, zinc, mercury, lead and dry residue was determined in drinking water according to standard methods.
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Rivero, Matías, Constanza Torres-Paris, Rodrigo Muñoz, Ricardo Cabrera, Claudio A. Navarro, and Carlos A. Jerez. "Inorganic Polyphosphate, Exopolyphosphatase, andPho84-Like Transporters May Be Involved in Copper Resistance inMetallosphaera sedulaDSM 5348T." Archaea 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/5251061.

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Polyphosphates (PolyP) are linear polymers of orthophosphate residues that have been proposed to participate in metal resistance in bacteria and archaea. In addition of having a CopA/CopB copper efflux system, the thermoacidophilic archaeonMetallosphaera sedulacontains electron-dense PolyP-like granules and a putative exopolyphosphatase (PPXMsed,Msed_0891) and four presumedpho84-like phosphate transporters (Msed_0846,Msed_0866,Msed_1094, andMsed_1512) encoded in its genome. In the present report, the existence of a possible PolyP-based copper-resistance mechanism inM. sedulaDSM 5348Twas evalua
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Puziy, Alexander M., Olga I. Poddubnaya, Barbara Gawdzik, Magdalena Sobiesiak, and Myroslav Sprynskyy. "Structural Evolution of Polyimide-Derived Carbon during Phosphoric Acid Activation." C 8, no. 3 (2022): 47. http://dx.doi.org/10.3390/c8030047.

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Carbon adsorbents were obtained by carbonization of polyimide polymer with and without the presence of phosphoric acid at temperatures in the range of 400–1000 °C. Carbons produced in the presence of phosphoric acid have been demonstrated to contain up to 13.2% phosphorus. The structure of phosphorus-containing compounds was investigated by XPS and 31P MAS NMR methods. Deconvolution of the P 2p peak with variable binding energy showed the presence of only phosphates/polyphosphates. However, a low value of the O/P ratio is an indirect indication of the possible presence of phosphonates. A 31P M
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Bobtelsky, M., and S. Kertes. "The polyphosphates of manganese, cobalt, nickel and copper: Their complex character, composition and behaviour." Journal of Applied Chemistry 5, no. 12 (2007): 675–86. http://dx.doi.org/10.1002/jctb.5010051206.

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Flores-García, Mirthala, Juan Manuel Fernández-G., Cristina Busqueta-Griera, et al. "New Copper Compounds with Antiplatelet Aggregation Activity." Medicinal Chemistry 15, no. 8 (2019): 850–62. http://dx.doi.org/10.2174/1573406415666190222123207.

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Background: Ischemic heart disease, cerebrovascular accident, and venous thromboembolism have the presence of a thrombotic event in common and represent the most common causes of death within the population. Objective: Since Schiff base copper(II) complexes are able to interact with polyphosphates (PolyP), a procoagulant and potentially prothrombotic platelet agent, we investigated the antiplatelet aggregating properties of two novel tridentate Schiff base ligands and their corresponding copper( II) complexes. Methods: The Schiff base ligands (L1) and (L2), as well as their corresponding coppe
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Liu, J., R. M. Friedman, E. Cortez, F. Pacholec, and S. M. Vesecky. "Investigation of film formation in water-distribution systems by field emission sem and spectroscopy techniques." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 212–13. http://dx.doi.org/10.1017/s0424820100163526.

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EPA has set limits on the concentration of heavy metals in drinking water supplies to protect the public health. Furthermore, the failure of pipes in the water distribution system from corrosion represents a massive investment in rebuilding its infrastructure. We have initiated a program to study the formation of corrosion-inhibition films formed in potable water delivery systems using various chemical phosphate treatments. In particular, blends of ortho- and polyphosphates have recently been used to reduce both lead and copper leaching. Several factors are important to the successful implemen
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Li, Yanhong, Jing Wang, Yuliang Wang, Wenjia Du, and Shuanke Wang. "Transplantation of copper-doped calcium polyphosphate scaffolds combined with copper (II) preconditioned bone marrow mesenchymal stem cells for bone defect repair." Journal of Biomaterials Applications 32, no. 6 (2018): 738–53. http://dx.doi.org/10.1177/0885328217739456.

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Calcium polyphosphate is a bioactive ceramic that possesses similar mineral components to bone and possess good physicochemical properties. However, pure calcium polyphosphate scaffold is brittle, and it is insufficient in promoting vascularization and osteoinductivity. This study was conducted to assess whether copper (Cu) incorporated into calcium polyphosphate could improve the scaffolds’ inherent shortcomings. In the experiments, Cu-calcium polyphosphate scaffolds’ mechanical strength, biocompatibility, and biodegradability were researched primarily. And then, hypoxia-inducible factor 1-al
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Dissertations / Theses on the topic "Copper polyphosphates"

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Ayala, Mariscal Sara Maria. "Modulation of Alzheimer's disease amyloid beta peptide aggregation by molecular chaperones, polyphosphates and metal ions, and their interplay." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30108.

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La maladie d'Alzheimer est la démence la plus répandue dans le monde. Le nombre de cas augmente de manière exponentielle et il est donc important de comprendre les mécanismes moléculaires donnant lieu à cette terrible maladie. Une des hypothèses les plus supportées est celle suggérant que la production et dégradation déséquilibrées de l'amyloïde-beta (Aß), un peptide de 42 acides aminés trouvé dans tous les individus sains, est un événement clé dans le déroulement de la maladie d'Alzheimer. En effet, une production accrue ou une dégradation faible du peptide ont pour conséquence son agrégation
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Большаніна, Світлана Борисівна, Светлана Борисовна Большанина, Svitlana Borysivna Bolshanina та С. Е. Авраменко. "Гальванические покрытия с антифрикционными свойствами". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/47271.

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Нанесение медных покрытий на металлические изделия используют для придания им противокоррозионных, декоративных качеств, для уменьшения негативного влияния сил трения и восстановления изношенных деталей. Важное значение имеют медные покрытия на металлических изделиях, которое применяют при работе с легко воспламеняющимися и взрывоопасными веществами, так как обладают антифрикционными свойствами. Для нанесения слоя меди на готовое изделие используют гальванические процессы в электролите.
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Басов, Б. С., С. Е. Авраменко, Світлана Борисівна Большаніна, Светлана Борисовна Большанина та Svitlana Borysivna Bolshanina. "Получение качественных медных покрытий на стальных изделиях". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45574.

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Медные покрытия на стальных изделиях имеют не только антикоррозионное, декоративное значение, но и антифрикционные свойства. Для электрохимического осаждения меди разработано большое количество электролитов. Наиболее распространенные, безопасные и простые в эксплуатации – сернокислые электролиты.
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Books on the topic "Copper polyphosphates"

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Mathew, Regi. Polyphosphate and orthophosphate: Influence on the sorption-desorption reactions of copper and its uptake by wheat. 1993.

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Book chapters on the topic "Copper polyphosphates"

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"Minerals." In Food: The Chemistry of its Components, 6th ed. The Royal Society of Chemistry, 2015. http://dx.doi.org/10.1039/bk9781849738804-00496.

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The list of bulk and trace elements required in the diet is a long one but largely restricted to elements of low atomic number. Our diet consists almost exclusively of materials that were once living organisms, which, with the broad similarity of the biochemistry of all animal and plant life, means that we can expect any reasonably mixed diet to supply all our mineral needs in about the right proportions. Sodium is abundant in all diets and is in animal physiology. Excessive consumption is recognised as a cause of hypertension and salt reduction in processed food is being pursued. Dietary pota
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Conference papers on the topic "Copper polyphosphates"

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Boffardi, B. P., and A. M. Sherbondy. "Control of Lead Corrosion by Chemical Treatment." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91445.

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Abstract Laboratory corrosion studies with lead pipe in the presence of orthophosphate or polyphosphate show that orthophosphate ions are most effective in controlling lead leaching. XPS analysis indicates that the mechanism differs for the two phosphate species; orthophosphate interacts directly with the lead surface whereas polyphosphates require calcium ions to develop a self limiting protective barrier. Pilot plant testing using a pipe loop fabricated from lead, soft solder, copper and a brass faucet simulating household water usage with typical on-off cycles, established equilibrium corro
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Schock, Michael R. "Corrosion Inhibitor Applications in Drinking Water Treatment: Conforming to the Lead and Copper Rule." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96231.

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Abstract Corrosion inhibitors for drinking water use must address multiple objectives: control of lead, copper, and undersiable aesthetic or dininfection problems. Only inhibitors based on families of orthophosphate, polyphosphate and silicate chemicals are permitted because of toxicity concerns, and they must meet certain standards for indirect additives to drinking water. Successful application of corroison inhibitors for achieving regulatory objectives requires careful consideration of the background water chemistry, particularly pH and DIC. Inhibitor performance is extremely dependent upon
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