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Artykuły w czasopismach na temat „Sodium nitrate spectral properties”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Padmaningrum, Regina Tutik, Isana Supiah Yosephine Louise, Isti Yunita, and Kristian Handoyo Sugiyarto. "INFRARED SPECTRAL AND MAGNETIC PROPERTIES OF BASIC COPPER(II) NITRATE PRODUCED BY SLOW TITRATION METHOD." Malaysian Journal of Science 41, no. 1 (2022): 106–16. http://dx.doi.org/10.22452/mjs.vol41no1.7.

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The main purposes for this work are to formulate and characterize the infrared (IR) and magnetic moment of the compounds resulted from the slow titration of copper(II) nitrate with sodium hydroxide and in the reverse procedures in an aqueous solution. The titration is carried out with various concentrations and at a constant temperature, ⁓ 19 oC, and monitored using pH meter with the rate of the titration⁓ 1 mL per minute. The corresponding data of change in mole ratio of Cu2+/OH- against pH reveals that the end point of the titration occurs at pH about 8, leading to stoichiometry formula, 3Cu

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2

Prosposito, Paolo, Federico Mochi, Erica Ciotta, et al. "Hydrophilic silver nanoparticles with tunable optical properties: application for the detection of heavy metals in water." Beilstein Journal of Nanotechnology 7 (November 9, 2016): 1654–61. http://dx.doi.org/10.3762/bjnano.7.157.

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Due their excellent chemo-physical properties and ability to exhibit surface plasmon resonance, silver nanoparticles (AgNPs) have become a material of choice in various applications, such as nanosensors, electronic devices, nanobiotechnology and nanomedicine. In particular, from the environmental monitoring perspective, sensors based on silver nanoparticles are in great demand because of their antibacterial and inexpensive synthetic method. In the present study, we synthesized AgNPs in water phase using silver nitrate as precursor molecules, hydrophilic thiol (3-mercapto-1-propanesulfonic acid

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Farasat, Mahshid, M. Maqsood Golzan, Khalil Farhadi, S. H. Reza Shojaei, and Sorayya Gheisvandi. "Preparation, characterization and electrochromic properties of composite thin films incorporation of polyaniline." Modern Physics Letters B 30, no. 15 (2016): 1650175. http://dx.doi.org/10.1142/s021798491650175x.

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Two different electrochromic composite films consisting of aniline/sodium molybdate (S1) and aniline/ferric nitrate (S2) were obtained by electrochemical polymerization method on indium tin oxide (ITO) coated glass substrates in oxalic acid (H2C2O[Formula: see text]2H2O) aqueous solution. The electrochromic properties of the resulting thin films were investigated by spectroelectrochemical measurement and cyclic voltammetry (CV). Under a square electrical potential, they show capacitive current characteristic and represent electrochromic performance, with maximum optical attenuations ([Formula:

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4

Gujarati, Vivek P., M. P. Deshpande, Kamakshi Patel, Kiran N. Patel, and S. H. Chaki. "Thermal and Optical Properties of Glycine Crystals with Additives of Nitrates." Advanced Materials Research 1141 (August 2016): 136–41. http://dx.doi.org/10.4028/www.scientific.net/amr.1141.136.

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Semi-organic crystals of Glycine Sodium nitrate Calcium nitrate (GSC) with two different molar ratios were grown using slow evaporation technique. Crystals of size 22 × 16 mm were obtained within time period of 3-4 weeks at ambient temperature. The compositional study and purity of the crystals were determined using Energy Dispersive X-ray Analysis (EDAX) and CHN Analyzer. Surface of the crystals was studied at micrometer scale with optical microscopy. These crystals were characterized by powder X-ray diffraction and indexing of diffraction pattern was done based on monoclinic system. We also

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5

Hardini, R. D., and T. E. Saraswati. "Concentration dependence of NaBH₄ reductant on the optical properties of colloidal silver nanoparticles synthesized from AgNO₃ solution." Journal of Physics: Conference Series 2556, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2556/1/012013.

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Abstract Synthesis of silver nanoparticles was successfully synthesized by a chemical reduction method using silver nitrate (AgNO3) as a precursor and sodium borohydride (NaBH4) as a reducing agent. The optical properties of silver nanoparticles were studied based on their surface plasmon resonance (SPR) phenomenon using UV-Visible spectrophotometry. The absorbance spectra of colloidal silver nanoparticles show the peak at the wavelength range of 380 nm to 450 nm. Colloidal silver nanoparticles have good stability after storage at room temperature.

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6

Santhaveesuk, Theerapong, Yoottana Keawtoakrue, Kwunta Siwawongkasem, and Supab Choopun. "Size and Shape Tailoring of ZnO Nanoparticles." Key Engineering Materials 675-676 (January 2016): 61–64. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.61.

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ZnO nanoparticles were successfully synthesized via the co-precipitation method using zinc nitrate and sodium hydroxide as raw materials. Size and shape of ZnO nanoparticles were well controlled by varying the ratio of sodium hydroxide solutions (0.5-0.9 mole) and the synthesized temperatures (65, 75 and 85 °C). ZnO nanoparticles exhibited a high degree crystallinity with wurtzite hexagonal structure for all conditions carried out using SEM, XRD, EDS and Raman. It was clearly observed that both sodium hydroxide solution and synthesized temperatures strongly affected on the size and shape of Zn

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7

Karankova, S. Y., I. A. Tikhonov, and E. B. Chubenko. "Synthesis and properties of composite materials based on zinc oxide nanoparticles in an insulating matrix." Doklady BGUIR 18, no. 6 (2020): 25–32. http://dx.doi.org/10.35596/1729-7648-2020-18-6-25-32.

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A composite material based on zinc oxide nanoparticles synthesized by the chemical hydrothermal method and a polymer insulated matrix of sodium silicate was obtained. Free zinc oxide nanoparticles were formed by heating an equimolar solution of zinc nitrate and hexamethylenetetramine with different pH values (3–5). Nanoparticles were introduced into an aqueous sodium silicate solution and applied on a silicon substrate by centrifugation. Using scanning electron microscopy, we studied the structure and morphology of zinc oxide nanoparticles on a silicon substrate in unbound state and after thei

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8

Sarath, Menon, Kumar Manu Shiv, Noyel Victoria S., and Manivannan R. "Influence of pH and calcination temperature on the properties of synthesized ceria." Journal of Indian Chemical Society Vol. 97, Jul 2020 (2020): 979–82. https://doi.org/10.5281/zenodo.5665538.

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Department of Chemical Engineering, National Institute of Technology Raipur, Raipur-492 010, Chhattisgarh, India <em>E-mail</em>: rmani.che@nitrr.ac.in <em>Manuscript received online 20 April 2020, accepted 01 June 2020</em> Ceria particles are now extensively used in chemical mechanical polishing of glass, which makes them a promising material for semiconductor industry. In this work, a facile co-precipitation route was adopted to synthesis ceria particles. Cerium nitrate hexahydrate and sodium carbonate were used as the precursors. Study of the effect of pH and calcination temperature on syn

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9

Godfrey, C., A. Coddington, C. Greenwood, A. J. Thomson, and P. M. A. Gadsby. "Purification and properties of formate dehydrogenase from Pseudomonas aeruginosa. Characterization of haem and iron-sulphur centres by magnetic-circular-dichroism and electron-paramagnetic-resonance spectroscopy." Biochemical Journal 243, no. 1 (1987): 225–33. http://dx.doi.org/10.1042/bj2430225.

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The purification of formate dehydrogenase (FDH) from Pseudomonas aeruginosa after anaerobic growth on nitrate-containing medium was carried out. The separation of the FDH enzyme from nitrate reductase (NiR), which are found together in a particle fraction and constitute the short respiratory chain of this bacterium, has been followed by optical, magnetic c.d. (m.c.d.) and e.p.r. spectroscopy. These techniques have allowed the haem, iron-sulphur clusters and molybdenum components to be detected and, in part, their nature to be determined. Attempts to extract FDH anaerobically in the absence of

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10

Pessanha, Natália F. N., and Gerson L. V. Coelho. "Study on the Production of Silver/Modified Clay Nanocomposites." MRS Proceedings 1547 (2013): 167–72. http://dx.doi.org/10.1557/opl.2013.565.

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ABSTRACTThe aim of this study was to investigate the application of modified clay as a support in the synthesis of silver nanoparticles. Silver nitrate (AgNO3) was used as the silver precursor in several concentrations (0.005 M, 0.01 M, 0.02 M, 0.05 M, and 0.1 M) to obtain Ag-MMT purified and modified clay nanocomposites. The properties of nanocomposites were also studied as a function of the concentration of the reducing agent, sodium borohydride (NaBH4). It was observed through X-ray Diffraction that the MMT purified structure was gradually exfoliated with increased concentrations of AgNO3,

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11

Nguyen, Kim Van, Hoa Thanh Dong, Thanh Thi Ho, Lieu Thanh Thi Le, Thanh Minh Thi Huynh, and Nga Viet Thi Nguyen. "Preparation, characterization, and photocatalytic activity of g-C3N4/SrTiO3 composite." Vietnam Journal of Catalysis and Adsorption 12, no. 1 (2023): 29–34. http://dx.doi.org/10.51316/jca.2023.005.

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The g-C3N4/SrTiO3 composite was hydrothermally synthesized at 150 oC for 12 hours from a dispersed mixture of g-C3N4 and SrTiO3 in water, in which SrTiO3 was hydrothermally synthesized at 150 oC for 12 hours using strontium nitrate, propan-2-ol, titanium tetrachloride and sodium hydroxide as precursors without assistance of any surfactant; and g-C3N4 was prepared by pyrolysis of melamine at 520 oC. The properties of materials were characterized by various techniques such as X-ray diffraction (XRD), infrared spectra (IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy

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12

Deshpande, M. P., Kiran N. Patel, Vivek P. Gujarati, Kamakshi Patel, and S. H. Chaki. "Structural, Thermal and Optical Properties of Nickel Oxide (NiO) Nanoparticles Synthesized by Chemical Precipitation Method." Advanced Materials Research 1141 (August 2016): 65–71. http://dx.doi.org/10.4028/www.scientific.net/amr.1141.65.

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Nanocrystalline NiO has been prepared successfully by chemical precipitation route using nickel nitrate hexahydrate (Ni (NO3)2·6H2O) and sodium hydroxide (NaOH) aqueous solution at a temperature of 60 ̊C. Their compositional, structural, morphological, thermal and optical properties were studied using energy dispersive analysis of X-rays (EDAX), X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), ultraviolet-visible (UV-Vis) spectroscopy, photoluminescence (PL) spectroscopy and Raman spectroscopy. From XRD pattern we confirmed the face centered cu

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13

Lee, Wei-Fang, Lu-Ying Wang, Ting-Yi Renn, et al. "Characterization and Antibacterial Properties of Polyetherketoneketone Coated with a Silver Nanoparticle-in-Epoxy Lining." Polymers 14, no. 14 (2022): 2906. http://dx.doi.org/10.3390/polym14142906.

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Polyetherketoneketone (PEKK) is an alternative material for use in removable partial denture frameworks; these frameworks must exhibit antibacterial properties to reduce the risk of periodontal disease. In the present study, silver nanoparticles (AgNPs) were synthesized via the reduction of silver nitrate with sodium borohydride in a solution containing polyvinyl pyrrolidone (PVP). Transmission electron microscope images and dynamic light scattering confirmed that metallic nanoparticles had been created with an average size of 32 nm. Furthermore, the coating of the PEKK polymeric substrate wit

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14

Kareem, Shaima'a J. "STUDYING THE EFFECT OF POLYVINYLPYRROLIDONE (PVP) ON CHARACTERIZATION OF ZNO NANOPARTICLES SYNTHESIZED BY SOL – GEL METHOD." IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING 18, no. 3 (2018): 460–69. http://dx.doi.org/10.32852/iqjfmme.v18i3.181.

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In this paper, studying synthesis zinc oxide nanoparticles (ZnO NPs) via sol - gel methodand effect of adding polymer in preparation its solution. Zinc nitrate hexahydrate,Polyvinylpyrrolidone PVP, distilled water and sodium hydroxide (NaOH) were used asprecursor materials. Crystallization behavior of the ZnO was studied by X-ray diffraction(XRD). Nanoparticles phases can change from amorphous to wurtzite structure at thecalcination temperature (500 °C) and crystallite size by Scherrer’s formula about (21.131)nm for samples prepared with distilled water and (20.035)nm for samples prepared with

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15

Rini, Ari Sulistyo, Yolanda Rati, Miranti Agustin, Yanuar Hamzah, and Akrajas Ali Umar. "Seed-Mediated Synthesis and Photoelectric Properties of Selenium Doped Zinc Oxide Nanorods." Sains Malaysiana 49, no. 12 (2020): 3009–17. http://dx.doi.org/10.17576/jsm-2020-4912-13.

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Pristine ZnO and selenium doped ZnO (Se-ZnO) nanorods were successfully synthesized using seed-mediated hydrothermal method. The growth solution of both pure and Se-doped ZnO nanorods employed zinc nitrate hexahydrate (ZNH) and hexamethylenetetramine (HMT) as a precursor and surfactant, respectively. As a dopant source, selenium salt solution was obtained by reacting selenium powder with sodium borohydride at low temperature. The as-prepared pure ZnO and Se-doped ZnO nanorods were characterized using field effect scanning electron microscopy (FESEM), X-ray diffraction (XRD), UV-Visible spectro

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16

Жуков, Н. Д., А. Г. Роках та М. И. Шишкин. "Свойства наночастиц сульфида свинца в мультизеренной структуре". Физика и техника полупроводников 52, № 6 (2018): 608. http://dx.doi.org/10.21883/ftp.2018.06.45924.8686.

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AbstractThe structural and electrical properties of PbS nanoparticles (40–70 nm), produced by a chemical reaction of sodium hydroxide with lead nitrate and electrophoretically deposited onto a conductive substrate, are investigated. The composition and structure of the nanoparticles are identified by X-ray analysis as pure PbS phase with a face-centered cubic lattice. Several minima, related to plasma-resonance absorption at 10–17 μm, are observed in the frustrated total internal reflection (FTIR) spectra. The layer morphology and the nanoparticle shape and sizes are determined by scanning ele

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17

Merz, C., and J. Steidl. "Data on geochemical and hydraulic properties of a characteristic confined/unconfined aquifer system of the younger Pleistocene in northeast Germany." Earth System Science Data 7, no. 1 (2015): 109–16. http://dx.doi.org/10.5194/essd-7-109-2015.

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Abstract. The paper presents a database of hydrochemical and hydraulic groundwater measurements of a younger Pleistocene multilayered, unconfined/confined aquifer system in NE Germany. The Institute of Landscape Hydrology of the Leibniz Centre for Agricultural Landscape Research (ZALF) operates seven groundwater monitoring wells in the Quillow catchment located in the Uckermark region (federal state of Brandenburg, Germany). From July 2000 to March 2014, water samples were collected periodically on different days of the year and at depths between 3 and 5 m (shallow wells) and 16 and 24 m (deep

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18

Pal Singh, Raminder Preet, I. S. Hudiara, and Shashi Bhushan Rana. "Effect of calcination temperature on the structural, optical and magnetic properties of pure and Fe-doped ZnO nanoparticles." Materials Science-Poland 34, no. 2 (2016): 451–59. http://dx.doi.org/10.1515/msp-2016-0059.

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AbstractIn the present study, pure ZnO and Fe-doped ZnO (Zn0.97Fe0.03O) nanoparticles were synthesized by simple coprecipitation method with zinc acetate, ferric nitrate and sodium hydroxide precursors. Pure ZnO and Fe-doped ZnO were further calcined at 450 °C, 600 °C and 750 °C for 2 h. The structural, morphological and optical properties of the samples were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and UV-Vis absorption spectroscopy. The X-ray diffraction studies revealed that the as-synthesized pure and doped ZnO na

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19

Feng, Xiaoyu, Kashif Ameer, Karna Ramachandraiah, and Guihun Jiang. "Extraction Method Effects on Structural Properties and Functional Characteristics of Dietary Fiber Extracted from Ginseng Residue." Molecules 29, no. 20 (2024): 4875. http://dx.doi.org/10.3390/molecules29204875.

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In this research, the dietary fibers (DFs) from ginseng residue were extracted by employing three different extraction methods (alkaline: AL, acidic: AC, enzymatic: EN). The extracted DFs were characterized in terms of their structural and functional properties. The results clearly showed that, regardless of the extraction methods, all DF samples exhibited representative infrared spectral features. The DF extracted by AC (citric acid) had more porous structures with a looser configuration, in conjunction with high apparent viscosity, whereas the DF extracted by EN (α-amylase and protease) exhi

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Babakhani, Samaneh, Zainal Abidin Talib, Mohd Zobir Hussein, and Abdullah Ahmed Ali Ahmed. "Synthesis and Characterization of Zn-Al Layered Double Hydroxide (LDH) Nanocomposite Intercalated with Sodium Dodecyl Sulfate (SDS)." Advanced Materials Research 1024 (August 2014): 52–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1024.52.

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The co-precipitation method was employed to fabricate Zn/AlNO3LDH in molar ratio, Zn2+/Al3+= 2 at PH=7. The sodium dodecyl sulfate (SDS) was intercalated to Zn/Al-LDH using coprecipitation method to form a new organicinorganic nanocomposite (LDH-SDS) with different concentration of SDS solution (0.2M, 0.4M and 0.8M). The structural properties of the resultant nanocomposites were perused using powder X-ray diffraction (PXRD). The shifting in the basal spacing for LDHSDS samples (2.562.60nm) with respect to Zn/AlNO3(0.890 nm) indicated SDS intercalation within the galleries. The UVVIS NIR Diffus

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21

Gaffer, H. E., S. Shaaban, N. A. Abed, and E. Abdel-latif. "Synthesis of some new symmetrical diselenide dyestuffs for dyeing polyester fabrics." Pigment & Resin Technology 45, no. 6 (2016): 431–38. http://dx.doi.org/10.1108/prt-06-2015-0053.

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Purpose This paper aimed to synthesise some new selenium-containing pyrazole, thiazole and thiophene dyestuffs and investigate their application in dyeing polyester fabrics. Design/methodology/approach 4,4′-Diselanediyl-bis-(2-methoxyaniline) was diazotized by acetic acid/sodium nitrite and coupled with active methylene components such as malononitrile, ethyl cyanoacetate and ethyl acetoacetate, and their corresponding hydrazono products were cyclised with hydrazine or phenyl hydrazine to obtain a series of arylazo-pyrazole dyestuffs. Furthermore, diazo-coupling reactions of the diazotized 4,4

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22

Brozek-Pluska, Beata, Monika Kopec, and Jakub Surmacki. "Surface-Enhanced Raman Spectroscopy Analysis of Human Breast Cancer via Silver Nanoparticles: An Examination of Fabrication Methods." Journal of Spectroscopy 2018 (July 15, 2018): 1–8. http://dx.doi.org/10.1155/2018/4893274.

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Breast cancer in a traditional way is diagnosed using mammography, computer tomography, ultrasounds, biopsy, and finally, histopathological analysis. Histopathological analysis is a gold standard in breast cancer diagnostics; however, it is time consuming and prone to the human interpretations. That is why new methods based on optical properties of analyzed human tissue samples are needed to be introduced to the clinical practice objective, costless and fast diagnostic protocols. Nowadays, Raman spectroscopy-based methods are gaining more and more importance. Raman spectroscopy and imaging all

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23

Li, Xiaohong, Xiaozhen Zhang, Yongzhi Yu, et al. "Sheaf-like Manganese-Doped Zinc Silicate with Enhanced Photoluminescence Performance." Inorganics 11, no. 10 (2023): 407. http://dx.doi.org/10.3390/inorganics11100407.

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Sheaf-like manganese-doped zinc silicate (Mn-doped Zn2SiO4) was successfully synthesized without surfactant by hydrothermal route using manganese acetate, zinc nitrate, and sodium silicate as precursors. The structure, morphology, and optical properties were well investigated by various analytical techniques, such as X-ray diffraction (XRD), a scanning electron microscope (SEM), a transmission electron microscope (TEM), and photoluminescence (PL). The results showed the enhancement of crystallinity and an increase in the length of the as-prepared sample, which was achieved by prolonging the hy

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Sharma, Gaurav, Amit Kumar, Inamuddin, Mansi Sood, and Abdullah M. Asiri. "Fabrication and Characterization of Polysorbate/Ironmolybdophosphate Nanocomposite: Ion Exchange Properties and pH-responsive Drug Carrier System for Methylcobalamin." Current Analytical Chemistry 16, no. 2 (2020): 138–48. http://dx.doi.org/10.2174/1573411014666180727144746.

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Background: Nanocomposites are of great interest due to their competency to show multifunctional properties. They have been recently given much attention due to their credibility to offer the synergistic feature of organic material with those of inorganic constituents. Different types of nanocomposites have been prepared to date and are being used for different applications. The delivery of drugs in the human body at a particular site was one of the major problems in the medicinal field. The nanocomposite formulations can be used to provide controlled release and they can be combined with liga

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Ali, Ibrahim Abdulkareem. "Characterization of Zinc oxide Nanostructures prepared by hydrothermal method with Antibacterial property." Iraqi Journal of Physics (IJP) 17, no. 42 (2019): 108–24. http://dx.doi.org/10.30723/ijp.v17i42.448.

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In this study, Zinc oxide nanostructures were synthesized via a hydrothermal method by using zinc nitrate hexahydrate and sodium hydroxide as a precursor. Three different annealing temperatures were used to study their effect on ZnO NSs properties. The synthesized nanostructure was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Atomic force microscope (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). Their optical properties were studied by using UV -visible spectroscopy. The XRD analysis confirms that all ZnO nanostructures have the hex

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Elekalachi, Chukwuemeka, I. A. Ezenwa, N. A. Okereke, N. L. OKoli, and A. N. Nwori. "Thermal Annealing Impact on the Properties of CdSe/PbSe Superlattice Thin Films." OAJ Materials and Devices 8 (November 16, 2024): 0211–1. http://dx.doi.org/10.23647/ca.md20240211.

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Superlattice thin films of CdSe/PbSe were successfully deposited on glass substrate using successive ionic layer adsorption reaction (SILAR) method to study their properties for possible semiconductor device applications. Cadmium (II) chloride hemi (pentahydrate), lead nitrate and sodium hydrogen selenide were the precursor for Cd2+, Pb2+ and Se2- ions sources respectively. The SILAR process involved a total cycle time of 100 seconds for a complete SILAR cycle with a total of six cycles made as one layer of CdSe used as a substrate for PbSe to form CdSe/PbSe superlattice films. The deposited t

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Sahu, Balakrushna, and G. Pugazhenthi. "Characterization of Polystyrene (PS)/Organomodified Layered Double Hydroxide (OLDH) Nanocomposites Prepared by In Situ Polymerization." Advanced Materials Research 410 (November 2011): 164–67. http://dx.doi.org/10.4028/www.scientific.net/amr.410.164.

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PS/LDH nanocomposites were synthesized via in-situ polymerization technique using styrene monomer with toluene as a solvent. A series of LDHs (Mg-Al, Co-Al, Ni-Al, Cu-Al, Cu-Fe and Cu-Cr LDHs) was first prepared from their nitrate salts by co-precipitation method. The above prepared, pristine LDHs were organically modified using sodium dodecyl sulfate (SDS) to obtain organomodified LDHs (OLDH). Then, PS nanocomposites containing 5 wt.% OLDHs were prepared by in-situ polymerization method. The structural and thermal properties of LDHs and corresponding nanocomposites were characterized by X-Ray

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Necula, Marian, Iris Maria Tușa, Manuela Elisabeta Sidoroff, et al. "How accurate is the remote sensing based estimate of water physico-chemical parameters in the Danube Delta (Romania)?" Annals of Forest Research 65, no. 2 (2022): 103–14. http://dx.doi.org/10.15287/afr.2022.2682.

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The current paper estimated the physico-chemical properties of water in the Danube Delta (Romania), based on Sentinel 2 remote sensing data. Eleven sites from the Danube Delta were sampled in spring and autumn for three years (2018-2020) and 21 water physico-chemical parameters were measured in laboratory. Several families of machine learning algorithms, translated into hundreds of models with different parameterizations for each machine learning algorithm, based on remote sensing data input from Sentinel 2 spectral bands, were employed to find the best models that predicted the values measure

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Wei, Xiuli, Haosheng Dai, Huaqiao Gui, et al. "Technical note: Real-time diagnosis of the hygroscopic growth micro-dynamics of nanoparticles with Fourier transform infrared spectroscopy." Atmospheric Chemistry and Physics 22, no. 5 (2022): 3097–109. http://dx.doi.org/10.5194/acp-22-3097-2022.

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Abstract. Nanoparticles can absorb water to grow, and this process will affect the light-scattering behavior, cloud condensation nuclei properties, lifetime, and chemical reactivity of these particles. Current techniques for calculation of aerosol liquid water content (ALWC) usually restrict the size of particles to be within a certain range, which may result in a large uncertainty when the particle size is beyond the specified range. Furthermore, current techniques are difficult to use to identify the intermolecular interactions of phase transition micro-dynamics during particles' hygroscopic

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Khan, Ayad Kareem. "Facile Synthesis, Characterization of New Quinazolinones with Different Azo Compounds, 1,2,3-Triazole Moieties and Evaluation Their Anti-bacterial Activity." Al-Mustansiriyah Journal of Science 28, no. 3 (2018): 122. http://dx.doi.org/10.23851/mjs.v28i3.180.

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In the present research, a series of some azo compounds (5-9) and 1,2,3-triazoles derived from 2-methyl quinazolin-4(3H)-one were synthesized successfully by stepwise routes includes the following: 3-amino-2-methylquinazolin-4(3H)-one (3) prepared firstly by conversion of 2-aminobenzoic acid into methyl 2-aminobenzoate (1) followed by reaction with acetic anhydride to form methyl -2-acetamidobenzoate (2). The amide then allowed reacting with hydrazine hydrate to give compound (3). Diazotization reaction with sodium nitrite in the presence of hydrochloric acid yield the 3-(chlorodiazenyl)-2-met

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Gu, Xiangming, Richard Hickey, Antara Rath, and Andre F. Palmer. "Scalable manufacturing platform for the production of methemoglobin as a non-oxygen carrying control material in studies of cell-free hemoglobin solutions." PLOS ONE 17, no. 2 (2022): e0263782. http://dx.doi.org/10.1371/journal.pone.0263782.

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Methemoglobin (metHb) arises from the oxidation of ferrous hemoglobin (HbFe2+, Hb) to ferric hemoglobin (HbFe3+, metHb), which is unable to bind gaseous ligands such as oxygen (O2) and carbon monoxide (CO), and binds to nitric oxide (NO) significantly slower compared to Hb. Therefore, metHb does not elicit vasoconstriction and systemic hypertension in vivo due to its extremely slow NO scavenging rate in comparison to cell-free Hb, but will induce oxidative tissue injury, demonstrating the potential of using metHb as a control material when studying the toxicity of cell-free Hb. Hence, the goal

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S., Ambikavathy, Madhurambal G., Ravindran B., Menaka N., Malini S., and Kamali S. "Synthesis and characterization of L-Cystine Sodium Nitrate." RESEARCH REVIEW International Journal of Multidisciplinary 03, no. 07 (2018): 146–50. https://doi.org/10.5281/zenodo.1307453.

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In the present work, L-Cystine Sodium nitrate has been grown by a slow evaporation method. The Powder X-ray diffraction analysis was confirmed the crystalline nature. The FT-IR spectral analysis confirmed the various functional groups present in the grown crystal. The good optical property of a crystal was determined by UV-Vis transmittance spectrum. The TGA –DSC analysis confirmed that the crystal was stable up to 231.21oC. NLO studies of the grown L-Cystine Sodium nitrate crystals was determined using Kurtz Powder technique; which is 0.65 times that of KDP.

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Dhaningtyas, Shalihat Afifah. "Waste Reduction Based on Adsorption Aqueous Lead Nitrate by Chicken Feather." PROSIDING SEMINAR KESEHATAN MASYARAKAT 2, October (2024): 69–77. https://doi.org/10.26714/prosidingfkm.v2ioctober.644.

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Background: Chicken feathers can be used as an alternative treatment for metal ions in wastewater with a concentration of lead nitrate. This paper will describe the ability of chicken feathers that were activated by only Sodium hydroxide and by Sodium hydroxide with Hydrochloric acid based on some variation of the weight of chicken feathers to reduce the concentration of lead nitrate and subsequently, characterizing the spectral outcomes. Method: A quasi-experimental research with pre-test post-tests equivalent control groups design will be done. The purposive sampling consists of aqueous Pb(N

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Wang, Hsiaoling, Charles K. Mann, and Thomas J. Vickers. "Effect of Powder Properties on the Intensity of Raman Scattering by Crystalline Solids." Applied Spectroscopy 56, no. 12 (2002): 1538–44. http://dx.doi.org/10.1366/000370202321115779.

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The effect of particle size on Raman intensity has been measured for a number of crystalline solids with a fiber-optic-based Raman spectrometer. Particle sizes ranged from 76 to 605 μm. Materials examined were sodium nitrate, sodium chlorate, sodium bromate, potassium ferrocyanide, potassium ferricyanide, and copper(II) sulfate. Raman intensity was found to decrease with increasing particle size. The factors responsible for this trend are discussed. We conclude that the major factor is diffuse reflectance that enhances the overlap between the excitation and collection beams. The depth of sampl

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Zhang, Hong Tao, You Jing Zhao, Jing Li Li, Li Jie Shi, and Min Wang. "Preparation and Heat Transfer/Thermal Storage Properties of High-Temperature Molten Nitrate Salts." Materials Science Forum 814 (March 2015): 60–64. http://dx.doi.org/10.4028/www.scientific.net/msf.814.60.

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The thermal stability of molten salts, operating temperature range and latent heat of melting for the molten salts at high temperature have been studied in the present investigation. The multi-component molten salts composed of purified potassium nitrate, purified sodium nitrate were prepared by statical mixing method [1]. The stability experiments were carried out at 500 to 600°C, and the experimental result showed that the purified nitrate molten salts performed better high-temperature thermal stability and its optimum operating temperature was increased from 500°C to 550°C. DSC analysis ind

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Velumani, Mathivanan, Prince Makarios Paul, Muthiah Haris, Muthuswamy Senthilkumar, Abiram Angamuthu, and Chandrasekaran Joseph. "Characterization of Pure and L-Proline Doped Potassium Nitrate and Sodium Nitrate Crystals." Trends in Sciences 19, no. 19 (2022): 6181. http://dx.doi.org/10.48048/tis.2022.6181.

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The crystals of pure and L-Proline doped Potassium nitrate and Sodium nitrate were grown in solution by slow evaporation technique using supersaturated solution of the salts. Characterization studies of the crystals have been done to find the impact of the L-Proline on the regular lattice arrangement of the pure crystal. The Powder XRD spectrum reveals that the pure and doped KNO3 crystals belong to orthorhombic structure; and pure and doped NaNO3 are rhombohedral in nature. This is a unit cell with parameters a = b = c; α = β = γ ≠ 90°. There are small changes in the unit cell dimensions but

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Nautiyal, Arvind. "Ferroelectric properties of sodium doped cesium nitrate - polymer composite films." Ferroelectrics Letters Section 44, no. 1-3 (2017): 29–34. http://dx.doi.org/10.1080/07315171.2017.1320192.

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Hernández-Paredes, J., Daniel Glossman-Mitnik, O. Hernández-Negrete, et al. "Thermal, mechanical, and electronic properties of glycine-sodium nitrate crystal." Journal of Physics and Chemistry of Solids 69, no. 8 (2008): 1974–79. http://dx.doi.org/10.1016/j.jpcs.2008.02.010.

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Pramanik, Somnath, and Bijan Das. "Thermodynamic Properties of Aqueous Sodium Nitrate Solutions Under Superambient Conditions." Journal of Solution Chemistry 48, no. 2 (2019): 167–79. http://dx.doi.org/10.1007/s10953-019-00852-8.

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Zhang, Xiang, Xin Chen, Ming Hui Feng, Zai Fang Zheng, Gong Pei Pan, and Hui Ping Lv. "Influences of Bulking and Porous Structure on Barium Nitrate as Pyrotechnic Oxidants." Advanced Materials Research 550-553 (July 2012): 27–31. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.27.

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An experimental investigation was carried out to explore the major physical and chemical properties of expanded barium nitrate. Expanded barium nitrate with porous structure was made. The method is as follows: moderately evaporate the solution of barium nitrate and inorganic vesicant; heat the crystallized mixture to decompose the inorganic vesicants. The inorganic vesicants are potassium carbonate, sodium carbonate, ammonium carbonate, ammonium oxalate, potassium acetate, ammonium acetate and ammonium perchlorate. The SEM shows that the modified barium nitrate with potassium carbonate has obv

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Yan, Quanying, Chao Ma, and Wei Wang. "Study on the preparation and thermal properties of binary mixed chloride salts." Journal of Physics: Conference Series 2076, no. 1 (2021): 012040. http://dx.doi.org/10.1088/1742-6596/2076/1/012040.

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Abstract Nitrate phase change materials (PCMs) are the most widely used PCMs in solar thermal power generation technology. The maximum service temperature of Nitrate phase change materials is only 600°C. Therefore, to find a phase change material with large heat capacity, wide temperature range, low heat loss and low price is the focus of current research. According to different mass ratios, nine binary molten salt mixtures were prepared by mixing lithium chloride and sodium chloride. The phase change temperature and latent heat of phase transition of them were studied by differential scanning

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MAGNUSZEWSKA, Paulina, Rafał Bogusz, and Bogdan Florczak. "STUDIES OF THE INFLUENCE OF ENERGETIC ADDITIVES ON SELECTED PROPERTIES OF HETEROGENEOUS SOLID ROCKET PROPELLANT WITH LOW CONTENT OF HCL IN COMBUSTION PRODUCTS." PROBLEMY TECHNIKI UZBROJENIA 144, no. 4 (2018): 15–30. http://dx.doi.org/10.5604/01.3001.0011.5821.

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The paper presents influence of additives like aluminium, magnesium, AMD (aluminium-magnesium dust) and boron on selected properties of heterogeneous solid rocket propellants (HSRP) based on HTPB in which ammonium chlorate was partly replaced by sodium nitrate. The presence of sodium nitrate reduces the content of hydrogen chloride (HCl) in combustion products. Theoretical values of thermochemical and thermodynamical properties like isochoric heat of combustion (Q), specific impulse (Isp) and combustion products in motor chamber and nozzle were identified by ICT-Code program. A laboratory rock

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Krolevets, A. A., N. S. Lyakhovchenko, V. Yu Senchenkov, A. A. Sirotin, K. M. Semichev, and E. M. Mamaeva. "Properties of nanostructured silver nitrate and its use in antimicrobial packaging." Tovaroved prodovolstvennykh tovarov (Commodity specialist of food products), no. 3 (February 25, 2021): 218–23. http://dx.doi.org/10.33920/igt-01-2103-08.

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Data on the study of nanostructured silver nitrate by the NTA and self-organization method are presented. It is shown that silver nitrate nanocapsules are formed due to non-covalent interactions, which is characteristic of self-assembly. The average size of nanocapsules ranges from 117 to 149 nm, and the geometry of nanocapsules depends on the nature of the shell. Thus, in sodium alginate, it approaches a spherical shape, and in guar gum — an ellipsoid.

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Afshar, Sepideh, Eric Johnson, Simon de Vries, and Imke Schröder. "Properties of a Thermostable Nitrate Reductase from the Hyperthermophilic Archaeon Pyrobaculum aerophilum." Journal of Bacteriology 183, no. 19 (2001): 5491–95. http://dx.doi.org/10.1128/jb.183.19.5491-5495.2001.

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ABSTRACT The nitrate reductase of the hyperthermophilic archaeonPyrobaculum aerophilum was purified 137-fold from the cytoplasmic membrane. Based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis, the enzyme complex consists of three subunits with apparent molecular weights of 130,000, 52,000, and 32,000. The enzyme contained molybdenum (0.8-mol/mol complex), iron (15.4-mol/mol complex) and cytochrome b (0.49-mol/mol complex) as cofactors. The P. aerophilum nitrate reductase distinguishes itself from nitrate reductases of mesophilic bacteria and archaea by its very high spe

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Liang, Zhancong, Zhihao Cheng, Ruifeng Zhang, Yiming Qin, and Chak K. Chan. "Distinct photochemistry in glycine particles mixed with different atmospheric nitrate salts." Atmospheric Chemistry and Physics 23, no. 16 (2023): 9585–95. http://dx.doi.org/10.5194/acp-23-9585-2023.

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Abstract. Particulate free amino acids (FAAs) are essential components of organonitrogen that have critical climate impacts, and they are usually considered stable end-products from protein degradation. In this work, we investigated the decay of glycine (GC) as a model FAA under the photolysis of different particulate nitrate salts using an in situ Micro-Raman system. Upon cycling the relative humidity (RH) between 3 % and 80 % RH, ammonium nitrate (AN) and GC mixed particles did not exhibit any phase change, whereas sodium nitrate (SN) and GC mixed particles crystallized at 60 % and deliquesc

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Ulas, A., G. A. Risha, and K. K. Kuo. "Ballistic properties and burning behaviour of an ammonium perchlorate/guanidine nitrate/sodium nitrate airbag solid propellant." Fuel 85, no. 14-15 (2006): 1979–86. http://dx.doi.org/10.1016/j.fuel.2006.03.026.

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Wang, Chenge, Yan Li, Gouyou You, and Qunzhi Zhu. "The promotional effect of sodium chloride on thermophysical properties of nitrate." IOP Conference Series: Materials Science and Engineering 772 (March 31, 2020): 012033. http://dx.doi.org/10.1088/1757-899x/772/1/012033.

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Karwowska, Małgorzata, Joanna Stadnik, and Karolina Wójciak. "The Effect of Different Levels of Sodium Nitrate on the Physicochemical Parameters and Nutritional Value of Traditionally Produced Fermented Loins." Applied Sciences 11, no. 7 (2021): 2983. http://dx.doi.org/10.3390/app11072983.

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This study evaluated the effect of sodium nitrate reduction on the following parameters: thiobarbituric acid reactive substances, the color parameters (CIE L* a* b*), total heme pigments, heme iron content and nutritional value related to N-nitrosamines content as well as nitrate and nitrite residues of traditionally produced fermented loins. Raw loins (m. longissimus thoracis et lumborum) and fermented products with different levels of nitrate added (0, 50, 100, 150 mg kg−1) were tested during six months of vacuum storage. The reduction of nitrate did not lead to statistically significant cha

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Umoh, Akaninyene A., and Anthony O. Ujene. "Improving the strength performance of high volume periwinkle shell ash blended cement concrete with sodium nitrate as accelerator." Journal of Civil Engineering, Science and Technology 6, no. 2 (2015): 18–22. http://dx.doi.org/10.33736/jcest.147.2015.

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The objective of this study is to examine the effect of accelerator (NaNO3) on the strength properties of High volume Periwinkle shell ash blended cement concrete. A mix ratio and water-binder ratio of 1:2:4 (cement: sand: gravel) and 0.60, respectively was used as the reference. The cement was then replaced with 30% Periwinkle Shell Ash (PSA) by weight of cement. Sodium nitrate in the dosages of 1, 2, and 3% by weight of cement was added to the blended mixture of cement and PSA. The strength properties investigated were compressive and splitting tensile strength tested at 7, 14 and 28 days hy

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Al-Aubody, Nehaya M. "The Role of Lepidium Sativum as Free Radical Scavenger in Laboratory Mice." Karbala Journal of Pharmaceutical Sciences 14, no. 23 (2024): 125–31. http://dx.doi.org/10.62472/kjps.v14.i23.125-131.

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Background: Lepidium sativum is a by-product remaining after the oil is extracted from Garden cress seeds. This herb is considered one of the popular medicinal herbs used in Arabian countries and has traditionally been used to control many clinical problems. The present study aims to uncover these seeds' free radical-scavenging properties and their Role in improving the testicular tissues and seminal properties. Material and Methods: Thirty-two sexually mature mice were used, and the treated groups were divided into three groups; the first one (G1) was treated with 0.1 ml of GC seed extraction

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