نتایج جستجو برای: calcium phosphate nanoparticles

تعداد نتایج: 363745  

The paper is focused on the formation of calcium phosphate nanoparticles (CP) in polyelectrolyte-modified microemulsions, in a microemulsion template phase consisting of cyclohexane, water, anionic surfactantant and cosurfactant, in the presence of anionic and cationic polyelectrolyte. It is shown that polyelectrolyte, can be incorporated into the individual inverse microemulsion droplets. The ...

2013
Li Chen Yunfei Ding Yongzhong Wang Xingrong Liu RJ Babu WR Ravis Weili Yan

BACKGROUND Zoledronic acid, an inhibitor of osteoclast-mediated bone resorption, has been shown to have both direct and indirect antitumor activity. However, its use in extraskeletal malignancy is limited due to rapid uptake and accumulation within bone. Polyinosinic acid-polycytidylic acid [poly (I:C)] is a synthetic double-stranded RNA with direct antitumor cytotoxicity if it can be delivered...

Journal: :Journal of water process engineering 2021

Phosphorus removal and recovery from synthetic solutions sewage sludge supernatants by using magnetic nanoparticles (MNP) were investigated through batch adsorption experiments. The kinetics isotherms on the of phosphate have been studied different MNP doses, contact time, pH, initial P concentrations. Reusability enrichment in desorption solution dewatering tested a series adsorption-desorptio...

Journal: :تحقیقات آب و خاک ایران 0
نسیم حیدری دانشجوی سابق کارشناسی ارشد گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز عادل ریحانی تبار استادیار گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز نصرت اله نجفی دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز شاهین اوستان دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز

information about forms of phosphorus (p) is important for the evaluation of p status in soil and also understanding of the soil fertility and plant nutrition. to obtain such information and to determine the relationship between the p forms from soil characteristics, amount of different organic and inorganic p forms of 20 soil composite samples of eastern azerbaijan province, iran were determin...

Journal: :Acta chimica Slovenica 2014
Poornima Budime Santhosh Aljaž Velikonja Ekaterina Gongadze Aleš Iglič Veronika Kralj-Iglič Nataša Poklar Ulrih

The interaction of the divalent calcium ions with the zwitterionic lipid membranes was studied by measuring the lipid order parameter which is inversely proportional to the membrane fluidity. Small unilamellar lipid vesicles were prepared from 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and then treated with different concentrations of divalent calcium ions. An increase in the order parame...

2011
Kenichiro Kawai Barrett J. Larson Hisako Ishise Antoine Lyonel Carre Soh Nishimoto Michael Longaker H. Peter Lorenz

INTRODUCTION Nanoparticles (NPs) are small entities that consist of a hydroxyapatite core, which can bind ions, proteins, and other organic molecules from the surrounding environment. These small conglomerations can influence environmental calcium levels and have the potential to modulate calcium homeostasis in vivo. Nanoparticles have been associated with various calcium-mediated disease proce...

2010
Adam M. Ross Monique N. Williams Daniel R. Talham Jeffrey J. Keaffaber

In aquatic environments, phosphorus is known as the “limiting nutrient.” It combines with nitrogen and photosynthetic processes to produce plant and algal growth. Phosphorus in marine life support systems exists in either a particulate or dissolved phase. While particulate sources may be removed during filtration or fractionation, the dissolved form persists. In a typical marine environment (pH...

Journal: :nephro-urology monthly 0
zohreh rostami nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran mahboobeh sadat hosseini nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran; nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran. tel: +98-2181262073, fax: +98-2181262073 mahboob lessan pezeshki department of nephrology, tehran university of medical sciences, tehran, ir iran farrokh heidari school of medicine, tehran university of medical sciences, tehran, ir iran behzad einollahi nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran

conclusions: in the current study, quality of life was correlated with serum calcium level, calcium-phosphate product, and serum pth level, while hospitalization was correlated only with serum phosphorus level. however, quality of life was inversely correlated with hospitalization. background: significant impairment in health-related quality of life (hrqol) among dialysis patients could be part...

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In the present study, we have evaluated the effects of graphene oxide (GO) addition on the physical-mechanical-biological properties of calcium phosphate cement (CPC). The in vitro cellular responses of MG63 and in vivo tissue responses after the implantation of CPC/GO in parietal bone defects of   wistar rats were also investigated. The brushite calcium phosphate cements were prepared by mixi...

Journal: :Nature nanotechnology 2011
Praveen Kumar Vemula R Rox Anderson Jeffrey M Karp

Approximately 10% of the population in the USA suffer from nickel allergy, and many are unable to wear jewellery or handle coins and other objects that contain nickel. Many agents have been developed to reduce the penetration of nickel through skin, but few formulations are safe and effective. Here, we show that applying a thin layer of glycerine emollient containing nanoparticles of either cal...

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