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Journal articles on the topic 'Strontium'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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1

Tomczyk-Warunek, Agnieszka, Karolina Turżańska, Agnieszka Posturzyńska, Filip Kowal, Tomasz Blicharski, Inés Torné Pano, Anna Winiarska-Mieczan, et al. "Influence of Various Strontium Formulations (Ranelate, Citrate, and Chloride) on Bone Mineral Density, Morphology, and Microarchitecture: A Comparative Study in an Ovariectomized Female Mouse Model of Osteoporosis." International Journal of Molecular Sciences 25, no. 7 (April 6, 2024): 4075. http://dx.doi.org/10.3390/ijms25074075.

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Osteoporosis stands out as a prevalent skeletal ailment, prompting exploration into potential treatments, including dietary strontium ion supplements. This study assessed the efficacy of supplementation of three strontium forms—strontium citrate (SrC), strontium ranelate (SrR), and strontium chloride (SrCl)—for enhancing bone structure in 50 female SWISS mice, aged seven weeks. In total, 40 mice underwent ovariectomy, while 10 underwent sham ovariectomy. Ovariectomized (OVX) mice were randomly assigned to the following groups: OVX (no supplementation), OVX + SrR, OVX + SrC, and OVX + SrCl, at concentrations equivalent to the molar amount of strontium. After 16 weeks, micro-CT examined trabeculae and cortical bones, and whole-bone strontium content was determined. Results confirm strontium administration increased bone tissue mineral density (TMD) and Sr content, with SrC exhibiting the weakest effect. Femur morphometry showed limited Sr impact, especially in the OVX + SrC group. This research highlights strontium’s potential in bone health, emphasizing variations in efficacy among its forms.

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2

Murray, T. "Elementary Scots the Discovery of Strontium." Scottish Medical Journal 38, no. 6 (December 1993): 188–89. http://dx.doi.org/10.1177/003693309303800611.

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The element Strontium takes its name from the village of Strontian in Argyll. It was in ore samples taken from lead mines near the village that Strontium was first identified as a new element in 1790. A radioactive form of the element has reached medical prominence through its use in the palliation of pain in patients with painful skeletal metastases.

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3

Christgau, Stephan, Jette Odderhede, Kenny Stahl, and Jens E. T. Andersen. "StrontiumD-glutamate hexahydrate and strontium di(hydrogenL-glutamate) pentahydrate." Acta Crystallographica Section C Crystal Structure Communications 61, no. 6 (May 13, 2005): m259—m262. http://dx.doi.org/10.1107/s0108270105011820.

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4

MAKHIJANI, ARJUN. "STRONTIUM." Chemical & Engineering News 81, no. 36 (September 8, 2003): 100. http://dx.doi.org/10.1021/cen-v081n036.p100.

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5

Stahl, Kenny, Jens E. T. Andersen, and Stephan Christgau. "Strontium diibuprofenate dihydrate, strontium malonate sesquihydrate, strontium diascorbate dihydrate and strontium 2-oxidobenzoate hydrate at 120 K." Acta Crystallographica Section C Crystal Structure Communications 62, no. 4 (March 18, 2006): m144—m149. http://dx.doi.org/10.1107/s0108270106005464.

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6

Li, Duo, Shuang Gan, Junfeng Li, Zihan Dong, Qi Long, Shuwei Qiu, Yahong Zhou, and Changyu Lu. "Hydrochemical Characteristics and Formation Mechanism of Strontium-Rich Groundwater in Shijiazhuang, North China Plain." Journal of Chemistry 2021 (March 24, 2021): 1–10. http://dx.doi.org/10.1155/2021/5547924.

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Strontium is a kind of trace element. Groundwater containing strontium is called mineral water when its content reaches a level that is beneficial for human physiology. Some groundwater resources in Shijiazhuang are rich in strontium. In this study, groundwater samples collected from 103 sites were studied for the hydrochemical characteristics of strontium and its formation mechanism in the groundwater system in Shijiazhuang City. The methods of source provenance analysis, factor correlation analysis, and runoff condition analysis were carried out in the study. The results showed that the content of strontium in eastern Shijiazhuang is higher than 0.229 mg/L, with a maximum content of 1.942 mg/L. The source of strontium is the dissolution of strontium-containing minerals in carbonate rock, sheet hemp rock, clastic rock, and granite in the Taihang Mountain area of the Hutuo River Basin. Strontium is positively correlated with total dissolved solids, bicarbonate, calcium magnesium, and free carbon dioxide. The erosion ability of groundwater strengthens the dissolution of strontium, and the geochemical action is mainly due to the dissolution. The enrichment and distribution of strontium are related to the conditions of groundwater runoff. Areas with good runoff conditions and strong mining are low in strontium, while areas with poor runoff conditions have high strontium content.

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7

Goblet, C., and Y. Mounier. "Activation of skinned muscle fibers by calcium and strontium ions." Canadian Journal of Physiology and Pharmacology 65, no. 4 (April 1, 1987): 642–47. http://dx.doi.org/10.1139/y87-107.

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Intact and mechanically skinned skeletal muscle fibers of the crab Carcinus maenas have been used. The aim of the experiments was to determine the origin of the mechanical activity recorded in intact crab muscle fibers exhibiting an inward strontium current in strontium solution without calcium. To do so, the effect of strontium ions in inducing activation of contractile proteins and calcium release from the sarcoplasmic reticulum has been studied. The properties of the sarcoplasmic reticulum membrane towards strontium ions, i.e., the efficiency of the calcium ATPase towards strontium ions and the capability to release strontium ions have been investigated. Results show that the contractile proteins have a lower affinity for strontium than for calcium ions. However, the maximum bound strontium is identical to the maximum bound calcium. As for the sarcoplasmic reticulum, strontium ions can induce a calcium release and also can be taken up by the calcium ATPase and be released. We concluded that the mechanical activity in intact fibers bathed in a strontium medium has two origins: first, a direct and partial activation of the contractile proteins by strontium ions flowing through the calcium channel; second, a contractile proteins activation of calcium ions released by the sarcoplasmic reticulum by a "strontium-induced calcium release" mechanism.

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8

Liu, Chenglun, Longjun Xu, Xueyan Yang, Tiefeng Peng, and Jianjun Ren. "Preparation of strontium ferrite from strontium residue." Chinese Journal of Geochemistry 31, no. 1 (January 5, 2012): 74–77. http://dx.doi.org/10.1007/s11631-012-0551-9.

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9

Li, Gui Qiang, Shou De Wang, Chao Nan Yin, and Ling Chao Lu. "Influence of Strontium Doping on Sintering and Performance of Alite-Rich Cement Clinker." Advanced Materials Research 168-170 (December 2010): 482–87. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.482.

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The synthesis conditions and mechanical performance of alite-rich cement clinker were investigated by the orthogonal test method. Sintering temperature, sintering time and contents of strontium oxide or strontium sulfate were taken as the influencing factors for the orthogonal test. The experimental results show that the optimal sintering temperature and sintering time are 1450 °C and 60 min, and the best strontium oxide or strontium sulfate content in the clinker is 1.5% and 0.5%, respectively. The doping of strontium oxide or strontium sulfate can promote the formation of alite mineral. That is beneficial to the increase of cement strength. The early strength of cement can be improved by addition of strontium oxide, and the long strength of cement can be increased through adding a little of strontium sulfate.

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10

Turżańska, Karolina, Agnieszka Tomczyk-Warunek, Maciej Dobrzyński, Maciej Jarzębski, Rafał Patryn, Joanna Niezbecka-Zając, Monika Wojciechowska, Aneta Mela, and Aneta Zarębska-Mróz. "Strontium Ranelate and Strontium Chloride Supplementation Influence on Bone Microarchitecture and Bone Turnover Markers—A Preliminary Study." Nutrients 16, no. 1 (December 27, 2023): 91. http://dx.doi.org/10.3390/nu16010091.

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Despite strontium ranelate use in osteoporosis management being one of the promising concepts in disease treatment, there is no clear evidence that strontium organic compounds are more effective than inorganic ones. The aim of this study was to compare strontium chlorate and strontium ranelate influence on the mice bone microarchitecture. We investigated whether strontium chlorate (7.532 mmol/L) and strontium ranelate (7.78 mmol/L) solutions fed to healthy SWISS growing mice (n = 42) had an influence on the percent of bone volume (BV/TV), trabecular thickness (Tb.Th), number of trabeculae (Tb.N), and separation between each trabecula (Tb.Sp) in the chosen ROI (region of interest) in the distal metaphysis of the left femurs. The cortical bone surface was examined close to the ROI proximal scan. There was an increase in each examined parameter compared with the control group. There were no statistical differences between strontium ranelate and strontium chlorate parameters. Our study indicates that organic and inorganic strontium compounds similarly affect the bone microarchitecture and strength.

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11

Wang, Teng, Qiulin Tao, and Zhaoxing Xie. "Performance and Environmental Evaluation of Stabilized Base Material with Strontium Slag in Low-Volume Road in China." Advances in Civil Engineering 2019 (February 14, 2019): 1–11. http://dx.doi.org/10.1155/2019/6958926.

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Strontium slag, a by-product of the strontium carbonate refining industry, has been produced at million tons per year in China. The use of strontium slag in the roads could reduce the demand of virgin materials and help solve the environmental problems caused by strontium slag. However, it is necessary to evaluate its environmental effect and the performance of the pavement with strontium slag before it could be used in roads. In this study, two test sections with strontium slag base layer were paved in low-volume roads in China to investigate its performance and environmental impact: (1) cement-treated base (CTB) section (5 cm asphalt surface over 20 cm CTB containing strontium slag) and (2) lime-treated base (LTB) section (3 cm asphalt surface over 20 cm LTB with strontium slag). The performance of the test sections was evaluated through laboratory and field experiments. The cost and environmental effect of strontium slag were investigated using production cost analysis and life-cycle assessment, respectively. Results of this study indicate that the CTB section exhibited a better performance compared to the LTB section, and the strontium slag decreased the material cost and the emissions during production.

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12

Yakout, Sobhy M., Mohamed R. Hassan, and Mohamed I. Aly. "Synthesis of magnetic alginate beads based on magnesium ferrite (MgFe2O4) nanoparticles for removal of Sr (II) from aqueous solution: kinetic, equilibrium and thermodynamic studies." Water Science and Technology 77, no. 11 (May 17, 2018): 2714–22. http://dx.doi.org/10.2166/wst.2018.228.

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Abstract Novel magnetic alginate beads (MagAlgbeads) have been developed by incorporation of magnesium ferrite (MgFe2O4) in alginate beads with the aim of using them in the removal of strontium from aqueous solution. MagAlgbeads were characterized by transmission electron microscopy, scanning electron microscopy, X-ray fluorescence and Fourier transform infrared spectroscopy. The adsorption of strontium onto MagAlgbeads were found to depend on pH and strontium removal increases with increasing pH until pH is 6. Strontium adsorption kinetics run through pseudo-second-order model. Thermodynamically, strontium adsorption was endothermic and spontaneous. Langmuir isotherm gave good fitting for strontium removal with adsorption capacity of 505.5 mg/g. These results proved that the prepared MagAlgbeads are very efficient material for strontium adsorption.

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13

Zhao, Xin Yi, Feng Li, and Shi Bao Li. "Degradation Characteristic of Strontium-Containing Calcium Phosphate Cement In Vivo." Advanced Materials Research 105-106 (April 2010): 553–56. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.553.

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The objective of this study is to compare the degradation of three strontium-containing calcium phosphate cement (Sr-CPC) and one calcium phosphate cement without strontium (CPC) in vivo. Three Sr-CPCs, containing 1%, 5%, 10% strontium respectively, and a CPC without strontium were tested in this study. The specimens in rod-shape (2 mm  6 mm) were prepared, and were implanted in the erector spine muscle of 15 New Zealand rabbits. After 4, 8 and 12 weeks, 5 rabbits were sacrificed respectively and the specimens were taken out, cleaned, dryed and weighed. The weight losses of the specimens were calculated and the data were analyzed by ANOVA. The results showed that the CPC containing 5%, 10% strontium showed obviously higher degradation rates at the three observation periods than that containing 1% strontium and that without strontium (P<0.05). Addition of 1% strontium into CPC did not increase degradation rate (P>0.05), and the CPC containing 5% and 10% strontium showed no difference in degradation rate at the three observation periods (P>0.05).

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14

Ben Salem, Issam, Haïtham Sghaier, Pieter Monsieurs, Hugo Moors, Rob Van Houdt, Sami Fattouch, Mouldi Saidi, Ahmed Landolsi, and Natalie Leys. "Strontium-induced genomic responses of Cupriavidus metallidurans and strontium bioprecipitation as strontium carbonate." Annals of Microbiology 63, no. 3 (May 8, 2012): 833–44. http://dx.doi.org/10.1007/s13213-012-0462-3.

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15

Qiu, Nianwei, Li Tian, Xifeng Yan, Haoyu Dong, Mengyu Zhang, Guoliang Han, and Feng Zhou. "The Interplay between Calcium and Strontium in Chinese Cabbage under Normal and Low Calcium Conditions." HortScience 56, no. 8 (August 2021): 875–80. http://dx.doi.org/10.21273/hortsci15867-21.

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The structure and chemical properties of strontium and calcium are similar. To study the interplay between calcium and strontium in plants, different concentrations of SrCl2 (0, 1, 4, and 10 mmol·L−1) were added to the Hoagland nutrient solution with 4 mmol·L−1 Ca2+ (normal level Ca2+) or 0.4 mmol·L−1 Ca2+ (low-level Ca2+), which were used to cultivate Chinese cabbage seedlings. Under the low-level calcium condition, strontium not only did not promote the growth of Chinese cabbage but showed more severe toxicity compared with that under the normal calcium condition. Under normal calcium condition, although the growth of Chinese cabbage was significantly inhibited by 4 mmol·L−1 strontium, strontium did not show significant toxicity. However, under the low-level calcium condition, 1 mmol·L−1 strontium caused a significant decline of plant biomass and photosynthetic activity. Sr2+ showed a competitive inhibitory effect on the absorption of Ca2+, and strontium was more easily absorbed by Chinese cabbage. Under the low-level calcium condition, strontium aggravated the inhibition of calcium absorption. The inhibitory effect of strontium on plant growth was significantly related to the calcium content in Chinese cabbage. Strontium cannot replace the function of calcium in plants under calcium-deficient conditions.

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16

Dresler, Sławomir, Magdalena Wójciak-Kosior, Ireneusz Sowa, Maciej Strzemski, Jan Sawicki, Jozef Kováčik, and Tomasz Blicharski. "Effect of Long-Term Strontium Exposure on the Content of Phytoestrogens and Allantoin in Soybean." International Journal of Molecular Sciences 19, no. 12 (December 4, 2018): 3864. http://dx.doi.org/10.3390/ijms19123864.

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Abiotic stress, including metal excess, can modify plant metabolism. Here we investigated the influence of long-term strontium exposure (12 weeks, 0.5–4.0 mM Sr) on the content of phytoestrogens and allantoin as well as the mineral composition in soybean. Seven phytoestrogens were identified in the soybean: daidzin, glycitin, genistin, malonyldaidzin, malonylgenistin, daidzein, and coumestrol. The results showed that both malonyldaidzin and malonylgenistin were dominant phytoestrogens; however, the roots contained a relatively high amount of daidzein. It was found that strontium reduced the phytoestrogen content and decreased the antioxidant capacity. Strontium evoked depletion of the sum of all phytoestrogens by 40–70% in the leaves, 25–50% in the stems and in the seeds, depending on the strontium concentration. In the roots, 0.5 and 4.0 mM of strontium decreased the total phytoestrogen content by 25 and 55%, respectively, while 2.0 mM of strontium did not exert an effect on their accumulation. On the other hand, strontium ions induced allantoin accumulation mainly in the roots. Strontium was preferentially accumulated in the leaves, with a slight impact on macro- and micro-nutrients. Our research showed strontium-secondary metabolites interaction in the soybean, which can be useful for obtaining a natural pharmaceutical product containing both strontium and phytoestrogens for remediation of postmenopausal osteoporosis.

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17

Zhang, Zheng Quan, Yu Ling Wang, Xiao An Yue, En Ze Wang, and Li Zhen Zou. "Synthesis and Characterization of SrSiO₃ by Chemical Deposition Method." Applied Mechanics and Materials 204-208 (October 2012): 3952–55. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3952.

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Nitric acid strontium and potassium silicate as raw material, the strontium silicate was synthesized preparation the strontium silicate was synthesized by chemical deposition method， and the strontium silicate was sintered for three hours in 850 °C, 1000 °C and 1150 °C. The effect of sintering temperature on phase composition, microstructure and the influence of purity of strontium silicate was studied using X-ray diffraction and electron scanning electron microscope and differential thermal-hot heavy analyzer. The formation mechanism of strontium silicate by chemical deposition method was analyzed. The results show that: the sintering temperature is effect on phase composition and microstructure of the strontium silicate, Compared with traditional high temperature solid reaction process, the chemical deposition method could greatly reduce the sintering temperature, and improve the powder purity.

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18

Browning, L. C., and A. J. Cowieson. "Effect of vitamin D3 and strontium on performance, nutrient retention, and bone mineral composition in broiler chickens." Animal Production Science 54, no. 7 (2014): 942. http://dx.doi.org/10.1071/an13091.

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The therapeutic use of vitamin D3 and strontium has been successful for the treatment of osteoporosis in humans; however, the value of similar strategies in poultry is not clear. Male Ross broiler chicks (n = 216) were used in a 28-day broiler trial to assess effects of vitamin D3 and strontium supplementation on performance, nutrient retention, bone composition, and bone mass. Treatments included an industry-standard control diet and five additional diets where vitamin D3 was added at 5000, 20 000, or 35 000 IU/kg and strontium was added at 0 or 1200 mg/kg in a 3 × 2 factorial design. Broiler chickens supplemented with strontium and additional vitamin D3 did not increase bodyweight; however, there was a significant improvement in feed efficiency at medium levels of vitamin D3, and although not statistically significant, there was also an improvement in feed conversion ratio with strontium supplementation at normal vitamin D3 concentrations. Strontium supplementation at normal levels of vitamin D3 significantly (P < 0.01) increased calcium, phosphorus, sodium, potassium, and magnesium retention. A high concentration of vitamin D3 produced a significant improvement in apparent metabolisable energy, protein, and dry matter utilisation in the broiler chicken. Paradoxically, however, there was a detrimental effect of high vitamin D3 on bodyweight and feed efficiency, which was partially ameliorated by strontium supplementation. Strontium addition did not change bone mass but did change bone composition. High levels of vitamin D3 significantly (P < 0.01) reduced bone ash content and increased strontium content of bone. In conclusion, both vitamin D3 and strontium have the potential to positively influence the performance, mineral retention, and bone characteristics of broiler chicks. However, as with calcium and phosphorus, vitamin D3 and strontium interact and so more research is required with strontium on the optimum dose rate and its relationship with vitamin D3, calcium, phosphorus, and IGF-1 in broiler nutrition.

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19

Fu, Senlin, Di Liu, Yanjiao Tian, Xiaofeng Xu, and Zhaoyong Shi. "Foliar Application of Strontium for the Identification of Roots from Specific Wheat Plants." Agriculture 14, no. 6 (May 31, 2024): 877. http://dx.doi.org/10.3390/agriculture14060877.

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In the field of crop research, the study of roots involves many challenges, particularly the lack of effective methods for identifying crop roots. To deal with this problem, this study proposes a solution strategy: in applying strontium to crop leaves, the roots of different crops are distinguished. In this study, we applied strontium ions to the leaves of hydroponically grown wheat, and these strontium ions were partially absorbed by the leaves and transported to the roots. Therefore, the strontium concentration of roots was significantly increased through the foliar application of strontium. After mixing the treated wheat with the untreated wheat root, the greater the biomass of the wheat root applied with strontium ions, the higher the strontium concentration in the mixed root. Based on this phenomenon, we can establish the relationship between wheat root biomass and strontium concentration in mixed roots through linear fitting. Furthermore, we can also use the relationship between root biomass and root length to establish the correlation between strontium concentration in mixed roots and the root length of wheat with strontium ions. After measuring the strontium concentration of the mixed roots to be distinguished, the root biomass and root length of wheat applied with strontium ions can be calculated according to the equation obtained through linear fitting. The accuracy of this method was verified through a comparison with the actual value and the existing root staining method. The results show that the coefficient of determination (R2) of the root biomass estimation equation obtained through linear fitting reached 0.83, which is statistically significant (p < 0.01). The Pearson correlation coefficient with the measured value was more than 0.9, showing a very high correlation and significance. The root length estimation equation derived from the relationship between the root biomass, strontium concentration and root length was compared with the real root length value and the root length value obtained using the staining method. The Pearson correlation coefficient also exceeded 0.8 and reached a statistically significant level (p < 0.01). This study confirms that strontium ions can be absorbed and transported to roots through wheat leaves and successfully developed a new method for predicting the length of wheat roots, providing an effective new tool for wheat root research.

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20

Imrie, Flora E., Valentina Aina, Gigliola Lusvardi, Gianluca Malavasi, Iain R. Gibson, Giuseppina Cerrato, and Basil Annaz. "Synthesis and Characterisation of Strontium and Magnesium Co-Substituted Biphasic Calcium Phosphates." Key Engineering Materials 529-530 (November 2012): 88–93. http://dx.doi.org/10.4028/www.scientific.net/kem.529-530.88.

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Magnesium and strontium both play important roles in the growth of bone and so are desirable ions for substitution into hydroxyapatite (HA) intended for use as bioinstructive bone substitutes. A range of compositions were prepared by a solid state method based on the nominal composition of HA (Ca10(PO4)6(OH)2), with various levels of strontium and/or magnesium substitution: strontium-substituted HA (Ca8Sr2(PO4)6(OH)2), magnesium-substituted HA (Ca9.8Mg0.2(PO4)6(OH)2 and Ca9Mg (PO4)6(OH)2), and strontium and magnesium co-substituted HA (Ca7.8Sr2Mg0.2(PO4)6(OH)2 and Ca7Sr2Mg (PO4)6(OH)2). Materials were characterised by powder X-ray diffraction, Fourier-transform infrared spectroscopy and Raman spectroscopy. These analyses indicated that the co-substituted materials were composed of mixtures of strontium-substituted hydroxyapatite and magnesium and strontium co-substituted β-tricalcium phosphate. In the magnesium-substituted materials, increased magnesium content was related to increased proportion of β-tricalcium phosphate phase, both with and without strontium co-substitution. The unsubstituted and strontium mono-substituted materials, however, were pure apatite phase, suggesting that magnesium was the destabilising factor in the phase compositions of the magnesium mono-substituted and magnesium and strontium co-substituted materials.

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Nashchochin, Egor Olegovich, Dmitry Sergeevich Shtarev, Anna Vladimirovna Shtareva, and Alexander Vjacheslavovich Syuy. "Strontium Bismuthates Sr₂Bi₂O₅ and Sr₆Bi₂O₁₁: Temperature Dependencies of Urbach Energy and Location of «Urbach Focus»." Defect and Diffusion Forum 386 (September 2018): 181–85. http://dx.doi.org/10.4028/www.scientific.net/ddf.386.181.

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We present information about temperature dependence of optical properties of two different strontium bismuthates. We demonstrate that temperature dependencies of Urbach energy of two strontium bismuthates differ radically. Abnormal behavior of Urbach focus of strontium bismuthate Sr2Bi2O5 is observed. We assume existence of phase transit in strontium bismuthate Sr2Bi2O5 at the temperature around 305 K.

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22

Chen, Lifang, Xiaokai Bian, and Xiaofeng Lu. "Removal of strontium from simulated low-level radioactive wastewater by nanofiltration." Water Science and Technology 78, no. 8 (October 29, 2018): 1733–40. http://dx.doi.org/10.2166/wst.2018.455.

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Abstract The performance of different nanofiltration (NF) membranes for the treatment of strontium-containing radioactive wastewater was investigated. The effects of the initial strontium concentration, solution pH and complexation phenomena on strontium removal were described. For all the three membranes, the strontium rejection increased with decreasing initial strontium concentration. Meanwhile, the strontium rejection was minimum at the membrane isoelectric point (pH 5) primarily due to decreased co-ion electrostatic repulsion. In the presence of a complexing agent (polyacrylic acid or ethylenediamine tetraacetic acid disodium salt), the strontium rejection was generally higher than those obtained without a complexing agent for NF 270 and XN 45. Membrane cleaning experiments were also conducted to recover the performance of the membranes, which exhibited degradation during long-time filtration. The performance of the membranes after cleaning was close to that of the virgin membranes, especially for XN 45, whose recovery percentage was nearly 100%.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1391 (March 2012): 38. http://dx.doi.org/10.2165/00128415-201213910-00143.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1191 (March 2008): 21. http://dx.doi.org/10.2165/00128415-200811910-00068.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1359 (July 2011): 34. http://dx.doi.org/10.2165/00128415-201113590-00131.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1401 (May 2012): 35. http://dx.doi.org/10.2165/00128415-201214010-00133.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1205 (June 2008): 26. http://dx.doi.org/10.2165/00128415-200812050-00078.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1276 (October 2009): 27–28. http://dx.doi.org/10.2165/00128415-200912760-00083.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1282 (December 2009): 34. http://dx.doi.org/10.2165/00128415-200912820-00113.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1235 (January 2009): 32. http://dx.doi.org/10.2165/00128415-200912350-00098.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1249 (April 2009): 41. http://dx.doi.org/10.2165/00128415-200912490-00126.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1250 (May 2009): 35. http://dx.doi.org/10.2165/00128415-200912500-00106.

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&NA;. "Strontium-89." Reactions Weekly &NA;, no. 1256 (June 2009): 32. http://dx.doi.org/10.2165/00128415-200912560-00102.

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Deeks, Emma D., and Sohita Dhillon. "Strontium Ranelate." Drugs 70, no. 6 (April 2010): 733–59. http://dx.doi.org/10.2165/10481900-000000000-00000.

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&NA;. "Strontium-89." Reactions Weekly &NA;, no. 985 (January 2004): 16–17. http://dx.doi.org/10.2165/00128415-200409850-00053.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1295-1296 (April 2010): 34. http://dx.doi.org/10.2165/00128415-201012950-00110.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1307 (June 2010): 41. http://dx.doi.org/10.2165/00128415-201013070-00133.

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&NA;. "Strontium ranelate." Reactions Weekly &NA;, no. 1330 (December 2010): 32. http://dx.doi.org/10.2165/00128415-201013300-00109.

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Ouarsal, Rachid, Aziz Alaoui Tahiri, Brahim El Bali, Mohammed Lachkar, and Michael Bolte. "Strontium dihydrogenphosphite." Acta Crystallographica Section E Structure Reports Online 58, no. 2 (January 25, 2002): i19—i20. http://dx.doi.org/10.1107/s1600536802000806.

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Burlet, Nansa, and Jean-Yves Reginster. "Strontium Ranelate." Clinical Orthopaedics and Related Research 443, : (February 2006): 55–60. http://dx.doi.org/10.1097/01.blo.0000200247.27253.e9.

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Tobash, Paul H., Yuki Yamasaki, and Svilen Bobev. "Strontium tetragallide." Acta Crystallographica Section E Structure Reports Online 61, no. 8 (July 16, 2005): i174—i176. http://dx.doi.org/10.1107/s1600536805022439.

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Sorbera, L. A., J. Castañer, P. A. Leeson, and M. Bayés. "Strontium Ranelate." Drugs of the Future 28, no. 4 (2003): 328. http://dx.doi.org/10.1358/dof.2003.028.04.726503.

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43

Bergin, Enda. "Stable strontium." Nature Catalysis 2, no. 3 (March 2019): 177. http://dx.doi.org/10.1038/s41929-019-0261-3.

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Yang, Zhan Shou, Mi Xiang Qi, and Shu Ya Wang. "Spherical Nanometer Strontium Carbonate by Ultrasonic Method in the Water Phase." Advanced Materials Research 881-883 (January 2014): 1003–6. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1003.

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strontium carbonate nanopowder materials were synthesized using Sr(OH)2 and Na2CO3 or CO2 as starting materials in the water by ultrasonic irradiation at 3h,and adding suitable amount of EDTA morphology agent.samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) through separating strontium oxide solution slurry through by centrifuge , washing strontium carbonate slurry by ethanol.XRD and SEM showed that These products were found to be orthorhombic and spherical nanometer strontium carbonate and to be explained the growth mechanism of nano strontium carbonate powder.

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Qadeer, Riaz, Javed Hanif, Muhammad Saleem, and Muhammad Afzal. "Selective Adsorption of Strontium on Activated Charcoal from Electrolytic Aqueous Solutions." Collection of Czechoslovak Chemical Communications 57, no. 10 (1992): 2065–72. http://dx.doi.org/10.1135/cccc19922065.

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The adsorption of strontium on activated charcoal has been studied as a function of shaking time, pH, concentration of adsorbate and temperature. Wavelength dispersive X-ray fluorescence spectrometer was used for measuring strontium concentration. The adsorption of strontium obeys Freundlich and Langmuir isotherms. Quantities ∆H0 and ∆S0 were calculated from the slope and intercept of plot ln KD vs 1/T. The influence of different cations and anions on strontium adsorption has been examined. The adsorption of other metal ions on activated charcoal has been studied under specific conditions to check its selectivity. Consequently, strontium was removed from Rh, Pr, Rb and Cs. More than 95% adsorbed strontium on activated charcoal can be recovered with 65 ml 3M HNO3 solution.

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Huang, Shi Feng, Xue Li, Fu Tian Liu, Ya Mei Liu, Xin Cheng, and Zong Jin Li. "Influence of Strontium Ferrite on Properties of 0-3 Cement-Based Piezoelectric Composites." Key Engineering Materials 400-402 (October 2008): 125–29. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.125.

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0-3 cement based piezoelectric composites were fabricated using sulphoaluminate cement as matrix by compressing technique method. The effects of strontium ferrite content on the piezoelectric properties, dielectric properties and acoustic impedance of the composites were studied. The results show that the piezoelectric strain constant d33 and piezoelectric voltage constant g33 of the composites increase gradually with increaing strontium ferrite content. When the strontium ferrite mass fraction is 0.4%, both of the piezoelectric strain constant d33 and piezoelectric voltage constant g33 of the composite have the maximum value, and the values are 16.6pC•N-1 and 31.4mV•m•N-1, which are 35% and 19% larger than that of the composite without strontium ferrite doped, respectively. With the strontium ferrite content increase, both of the dielectric constant εr and the dielectric loss tanδ of the composites increase. With the addition of strontium ferrite the acoustic impedance Z increases, but there is no obvious relation between the strontium ferrite content and Z.

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Fernandes, Gabriela, Stephen T. Vanyo, Shahad Bakheet Atiano Alsharif, Sebastiano Andreana, Michelle B. Visser, and Rosemary Dziak. "Strontium Effects on Human Gingival Fibroblasts." Journal of Oral Implantology 45, no. 4 (August 1, 2019): 274–80. http://dx.doi.org/10.1563/aaid-joi-d-18-00253.

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Strontium is a naturally occurring alkaline earth metal that has been shown to be useful not only in the treatment and prevention of osteoporosis but also in the treatment of dentinal hypersensitivity in the oral cavity; strontium is also an effective cariostatic, antiplaque, antigingivitis agent. Relatively little is known, however, about the effects of strontium on gingival fibroblasts. The purpose of the present investigation was to conduct in vitro studies on the potential for strontium to positively affect the activity of these cells such that it might be effective in the enhancement of gingival attachment to surfaces, such as healing abutments in implants in the oral cavity. The results indicate that strontium added as strontium citrate (0.5–1.0 mM), both in the absence and presence of a healing abutment, increases human gingival cell activity and decreases apoptosis in these cells. Scanning electron microscopy studies also reveal that the addition of strontium increases attachment of gingival fibroblasts to the surfaces of healing abutments. These studies provide the basis for further investigations on the use of strontium in the prevention and treatment of peri-implantitis by maximizing the formation of a peri-implant soft-tissue barrier.

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Alishahi, Ardalan, Mohammad Noaparast, Ali Rezaei Ashani, and Marzieh Hosseini Nasab. "THE OPTIMIZATION OF THE STRONTIUM COMPOUNDS PRODUCTION, USING A CELESTINE ORE SAMPLE." Rudarsko-geološko-naftni zbornik 38, no. 4 (2023): 53–62. http://dx.doi.org/10.17794/rgn.2023.4.5.

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The direct conversion of celestine (SrSO4) to strontium carbonate as well as its enrichment by hydrometallurgy were investigated. A study was also conducted to investigate whether acid concentration affected the quality of strontium sulfate in celestine concentrates. Based on the results of a laboratory assay, it was determined that 98.04% SrSO4 was leached optimally under agitation. The ground sample of celestine concentrate was then leached by agitation for three hours after the dimensional analysis had determined the appropriate grinding time. To determine the optimal approach for the agitated leaching of strontium carbonate, different approaches were tested. Various factors, including temperature, return water, solid percentage, and sodium carbonate to strontium sulfate ratio, were studied. At 90°C, celestine completely converts into strontium carbonate with a solid percentage of 20% and a sodium carbonate to strontium sulfate ratio of 4:5. As part of the investigation into the possibility of producing strontium oxide, samples of celestine concentrate and strontium carbonate produced under optimal conditions were heated at 500 and 1000°C to determine which phase would form the oxidized phase. An X-ray analysis indicates that the oxidation phase forms at a temperature of more than 750°C.

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Loren, Jean, and Orly Lacham-Kaplan. "The employment of strontium to activate mouse oocytes: effects on spermatid-injection outcome." Reproduction 131, no. 2 (February 2006): 259–67. http://dx.doi.org/10.1530/rep.1.00894.

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The present research investigated the effects of various strontium concentrations, in combination with different incubation periods, on mouse parthenogentic oocyte activation and blastocyst development. The results for blastocyst development showed a trend indicating that 10 mM strontium for 3 h was the optimal strontium protocol. Ethanol, an agent that incites oocyte activation via a monotonic rise in calcium, was employed as a control. The outcome of blastocyst formation arising from parthenogenic ethanol activation was significantly less (P < 0.001) than that achieved by the optimal strontium protocol. To assess the impact of strontium oocyte activation on embryo viability following fertilization with immature germ cells, the protocol of 10 mM strontium for 3 h was applied to oocytes injected with round spermatids and then compared with other protocols. The results indicate that following round-spermatid injection the benefits derived from strontium artificial oocyte activation are evident during both pre- and post-implantation development. However, in order to adjust the protocol to the most effective round-spermatid injection in relation to the oocyte cell cycle, injection was done 1.5 h after strontium activation followed by another 1.5 h activation in strontium. The implementation of round-spermatid injection in combination with this oocyte-activation protocol led to live-birth outcomes not significantly different to those outcomes obtained by mature spermatozoa.

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Pompeu, Danielle da Silva, Brennda Lucy Freitas de Paula, Antônia Patricia Oliveira Barros, Samir Costa Nunes, Alexandra Melo Pingarilho Carneiro, Jesuína Lamartine Nogueira Araújo, and Cecy Martins Silva. "Combination of strontium chloride and photobiomodulation in the control of tooth sensitivity post-bleaching: A split-mouth randomized clinical trial." PLOS ONE 16, no. 4 (April 28, 2021): e0250501. http://dx.doi.org/10.1371/journal.pone.0250501.

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Objective This split-mouth randomized controlled clinical trial assessed the effect of 10% strontium chloride in combination with photobiomodulation (PBM) for the control of tooth sensitivity (TS) post-bleaching. Methods The upper/lower, right and left quadrants of fifty volunteers were randomized and allocated to four groups (n = 25): PLACEBO—placebo gel + simulation of PBM; Placebo + PBM; STRONTIUM—10% strontium chloride + simulation of PBM; and PBM + STRONTIUM—10% strontium chloride + PBM. All groups received tooth bleaching treatment with 35% hydrogen peroxide. For the PBM treatment, the laser tip was positioned in the apical and cervical regions of the teeth bleached in the respective hemi-arch. The laser system was operated in continuous mode, using 1.7 J of energy. A dose of 60 J/cm2 was applied to each point for 16 seconds under 808 nm near-infrared light (100mW of power), with a point area of 0.028 cm2. TS was assessed during a 21-day follow-up, using the modified visual analogue scale. Results In the intragroup assessment, the Friedman test indicated that PBM + STRONTIUM promoted the greatest reduction in TS after the second week of treatment (p ≤ 0.05). The Wilcoxon-Mann-Whitney test indicated that the groups Placebo + PBM, STRONTIUM, and STRONTIUM + PBM did not differ statistically (p ≥ 0.05) in the first and third weeks of treatment The group PLACEBO exhibited the greatest TS in the first three days after each bleaching session. Conclusion The combination of 10% strontium chloride with PBM was effective in reducing post-bleaching TS; however, the combination of 10% strontium chloride with PBM was effective in reducing post-bleaching TS; however, it did not differ from the individual use of Placebo + PBM or STRONTIUM groups assessed after 21 days of follow-up.

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