The Experts below are selected from a list of 243 Experts worldwide ranked by ideXlab platform
Preeti Droliya - One of the best experts on this subject based on the ideXlab platform.
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study of solute solute and solute solvent interactions of homologous series of some α amino acids in aqueous Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
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Study of (solute + solute) and (solute + solvent) interactions of homologous series of some α-amino acids in aqueous-Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
Anil Kumar Nain - One of the best experts on this subject based on the ideXlab platform.
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study of solute solute and solute solvent interactions of homologous series of some α amino acids in aqueous Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
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Study of (solute + solute) and (solute + solvent) interactions of homologous series of some α-amino acids in aqueous-Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
Xuefei Yang - One of the best experts on this subject based on the ideXlab platform.
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synergistic antibacterial activity of Streptomycin Sulfate loaded peg mos2 rgo nanoflakes assisted with near infrared
Materials Science and Engineering: C, 2020Co-Authors: Xingyu Zhao, Minmin Chen, Hualin Wang, Li Xia, Min Guo, Suwei Jiang, Qian Wang, Xuefei YangAbstract:Abstract Synergistic antibacterial strategies have received growing attention due to their significantly enhanced antibacterial activity. Herein, we demonstrated a synergistic antibacterial strategy based on Streptomycin Sulfate (SS) loaded polyethylene glycol-MoS2/reduced graphene oxide (PEG-MoS2/rGO) nanoflakes assisted with near-infrared (NIR). The nanoflakes of PEG-MoS2/rGO were ultrasonically exfoliated well from the nanoflowers of PEG-MoS2/rGO fabricated by hydrothermal method, which was of antibacterial activity against Staphylococcus aureus and Escherichia coli after loading of SS. Under the irradiation of NIR, the antibacterial activity was significantly enhanced by the synergistic effects of physical damage, protein synthesis inhibition, thermal injury and oxidative stress. Moreover, the cytotoxicity of the nanoflakes was very low. The results suggest the great potential of PEG-MoS2/rGO-SS as a photothermal antibacterial agent.
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Synergistic antibacterial activity of Streptomycin Sulfate loaded PEG-MoS2/rGO nanoflakes assisted with near-infrared.
Materials science & engineering. C Materials for biological applications, 2020Co-Authors: Xingyu Zhao, Minmin Chen, Hualin Wang, Li Xia, Min Guo, Suwei Jiang, Qian Wang, Xuefei YangAbstract:Abstract Synergistic antibacterial strategies have received growing attention due to their significantly enhanced antibacterial activity. Herein, we demonstrated a synergistic antibacterial strategy based on Streptomycin Sulfate (SS) loaded polyethylene glycol-MoS2/reduced graphene oxide (PEG-MoS2/rGO) nanoflakes assisted with near-infrared (NIR). The nanoflakes of PEG-MoS2/rGO were ultrasonically exfoliated well from the nanoflowers of PEG-MoS2/rGO fabricated by hydrothermal method, which was of antibacterial activity against Staphylococcus aureus and Escherichia coli after loading of SS. Under the irradiation of NIR, the antibacterial activity was significantly enhanced by the synergistic effects of physical damage, protein synthesis inhibition, thermal injury and oxidative stress. Moreover, the cytotoxicity of the nanoflakes was very low. The results suggest the great potential of PEG-MoS2/rGO-SS as a photothermal antibacterial agent.
Renu Pal - One of the best experts on this subject based on the ideXlab platform.
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study of solute solute and solute solvent interactions of homologous series of some α amino acids in aqueous Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
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Study of (solute + solute) and (solute + solvent) interactions of homologous series of some α-amino acids in aqueous-Streptomycin Sulfate solutions at different temperatures by using physicochemical methods
The Journal of Chemical Thermodynamics, 2016Co-Authors: Anil Kumar Nain, Renu Pal, Preeti DroliyaAbstract:Abstract Densities, ρ, ultrasonic speeds, u, and viscosities, η of solutions of glycine/l-alanine/l-valine/l-isoleucine in water and aqueous-Streptomycin Sulfate {1% (0.0069 mol · kg−1) and 2% (0.0137 mol · kg−1) Streptomycin Sulfate in water} mixed solvents were measured at T (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From these experimental results, the apparent molar volume, V ϕ , limiting apparent molar volume, V ϕ ° and the slope, Sv, apparent molar compressibility, K s , ϕ , limiting apparent molar compressibility, K s , ϕ ° and the slope, Sk, transfer volume, V ϕ , tr ° , transfer compressibility, K s , ϕ , tr ° , limiting apparent molar expansivity, E ϕ ° , Falkenhagen Coefficient, A, Jones–Dole coefficient, B, hydration number, n H , and temperature derivative of B-coefficient, dB/dT were calculated. Also, the activation parameters such as the free energies of activation of viscous flow per mole of solvent, Δ μ 1 ° # and per mole of solute, Δ μ 2 ° # , were calculated and discussed in terms of transition state theory. The results are interpreted in terms of (solute + solvent) and (solute + solute) interactions in these systems. It has been observed that all these amino acids act as structure-breaker in aqueous-Streptomycin Sulfate solvents. In addition to this, V ϕ ° , K s , ϕ ° , B and Δ μ 2 ° # have been split into group contributions of the amino acids using linear correlation with number of carbon atoms in the alkyl chain of the amino acids.
Huang Hua - One of the best experts on this subject based on the ideXlab platform.
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Study of superparamagnetic Streptomycin Sulfate PLA-PEG block polymer microspheres in vivo release
Journal of Chongqing Medical University, 2011Co-Authors: Huang HuaAbstract:Objective:To study in vivo release of superparamagnetic Streptomycin Sulfate PLA-PEG copolymer microsphere(block spSPM).Methods:Superparamagnetic magnetic nanoparticles Fe3O4 sodium oleate were prepared with chemical deposition;spSPM was prepared with complex emulsification(W/O/W).10 rabbits were randomly divided into spSPM experimental group and Streptomycin control group.After gluteal injection respectively,animal peripheral venous blood was drawn in fixed time for the determination of the blood concentration of sulfuric acid Streptomycin by using high performance liquid chromatography(HPLC).The medicine release in the animal body was compared.Results:Findings demonstrated significant difference between the experimental group and the control group in the in vivo release of the medicine(P0.05).Conclusion:Superparamagnetic Streptomycin Sulfate PLA-PEG block polymer microspheres show a delayed release in vivo.
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Oscillating magnetic field promotes Streptomycin in vivo release from magnetic microsphere
Chinese Journal of New Drugs, 2011Co-Authors: Huang HuaAbstract:Objective: To investigate the in vivo release of Streptomycin Sulfate from superparamagnetic PLA-PEG copolymer microsphere(superparamagnetic Streptomycin Sulfate PLA-PEG polymer microspheres,spSPM) in an oscillating magnetic field.Methods: The spSPM was prepared with complex emulsification(W/O/W).New Zealand rabbits(n=15) were randomized into 3 groups and treated with spSPM in an oscillating magnetic field,or with spSPM,or Streptomycin alone,respectively.After intramuscular injection of spSPM,venous blood was taken to determine Streptomycin concentration by high performance liquid chromatography(HPLC).The release of Streptomycin from spSPM with or without magnetic oscillations was compared.Results: The release of Streptomycin from spSPM was increased in the oscillating magnetic field.Conclusion: The magnetic field can promote Streptomycin release from spSPM.