The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Chino Kagawa - One of the best experts on this subject based on the ideXlab platform.
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uniformly sized molecularly imprinted polymers for d chlorPheniramine influence of a porogen on their morphology and enantioselectivity
Journal of Pharmaceutical and Biomedical Analysis, 2008Co-Authors: Jun Haginaka, Hiromi Tabo, Chino KagawaAbstract:Uniformly sized molecularly imprinted polymers (MIPs) for d-chlorPheniramine have been prepared by a multi-step swelling and polymerization method using methacrylic acid (MAA) or 2-(trifluoromethyl)acrylic acid (TFMAA) as a functional monomer and toluene, phenylacetonitrile, benzylacetonitrile or chloroform as a porogen. From measurement of their scanning electron microscopy images and physical properties in the dry state, the MIP prepared using TFMAA and chloroform as the functional monomer and porogen, respectively, seemed to be non-porous and had extremely low specific surface areas and pore volumes, while the other MIPs were porous beads with high specific surface areas and pore volumes. All the MIPs prepared were evaluated using hydro-organic mobile phases in HPLC. As a result, they showed the similar retentive and enantioselective properties for chlorPheniramine, bromPheniramine and Pheniramine. This result suggests the presence of enantioselective binding sites in the swollen state for all the MIPs.
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uniformly sized molecularly imprinted polymer for d chlorPheniramine evaluation of retention and molecular recognition properties in an aqueous mobile phase
Journal of Chromatography A, 2002Co-Authors: Chino KagawaAbstract:A uniformly sized molecularly imprinted polymer (MIP) for d-chlorPheniramine has been prepared by a multi-step swelling and polymerization method using methacrylic acid and ethylene glycol dimethacrylate as a functional monomer and cross-linker, respectively. The retentive and enantioselective properties of chlorPheniramine and its structurally related compounds on the MIP were evaluated using an aqueous mobile phase. Electrostatic and hydrophobic interactions could mainly work for the retention and enantioseparation of chlorPheniramine in aqueous mobile phase. Further, the MIP showed the highest recognition for chlorPheniramine and slight recognition for its structurally related compounds, and enantioseparation of Pheniramine was attained.
Jun Haginaka - One of the best experts on this subject based on the ideXlab platform.
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uniformly sized molecularly imprinted polymers for d chlorPheniramine influence of a porogen on their morphology and enantioselectivity
Journal of Pharmaceutical and Biomedical Analysis, 2008Co-Authors: Jun Haginaka, Hiromi Tabo, Chino KagawaAbstract:Uniformly sized molecularly imprinted polymers (MIPs) for d-chlorPheniramine have been prepared by a multi-step swelling and polymerization method using methacrylic acid (MAA) or 2-(trifluoromethyl)acrylic acid (TFMAA) as a functional monomer and toluene, phenylacetonitrile, benzylacetonitrile or chloroform as a porogen. From measurement of their scanning electron microscopy images and physical properties in the dry state, the MIP prepared using TFMAA and chloroform as the functional monomer and porogen, respectively, seemed to be non-porous and had extremely low specific surface areas and pore volumes, while the other MIPs were porous beads with high specific surface areas and pore volumes. All the MIPs prepared were evaluated using hydro-organic mobile phases in HPLC. As a result, they showed the similar retentive and enantioselective properties for chlorPheniramine, bromPheniramine and Pheniramine. This result suggests the presence of enantioselective binding sites in the swollen state for all the MIPs.
Mumtaz A. Quraishi - One of the best experts on this subject based on the ideXlab platform.
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inhibition of mild steel corrosion in acid solution by Pheniramine drug experimental and theoretical study
Corrosion Science, 2010Co-Authors: Ishtiaque Ahamad, Rajendra Prasad, Mumtaz A. QuraishiAbstract:Inhibition of mild steel corrosion in 1 M HCl solution by Pheniramine drug was studied using weight loss, electrochemical impedance spectroscopy, linear polarization resistance, and potentiodynamic polarization measurements. The values of activation energy (Ea) and different thermodynamic parameters such as adsorption equilibrium constant (Kads), free energy of adsorption (ΔGads°), adsorption enthalpy (ΔHads°) and adsorption entropy (ΔSads°) were calculated and discussed. The adsorption process of studied drug on mild steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization measurements showed that Pheniramine is mixed-type inhibitor. Further, theoretical calculations were carried out and relations between computed parameters and experimental inhibition efficiency were discussed.
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inhibition of mild steel corrosion in acid solution by Pheniramine drug experimental and theoretical study
Corrosion Science, 2010Co-Authors: Ishtiaque Ahamad, Rajendra Prasad, Mumtaz A. QuraishiAbstract:Inhibition of mild steel corrosion in 1 M HCl solution by Pheniramine drug was studied using weight loss, electrochemical impedance spectroscopy, linear polarization resistance, and potentiodynamic polarization measurements. The values of activation energy (Ea) and different thermodynamic parameters such as adsorption equilibrium constant (Kads), free energy of adsorption (ΔGads°), adsorption enthalpy (ΔHads°) and adsorption entropy (ΔSads°) were calculated and discussed. The adsorption process of studied drug on mild steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization measurements showed that Pheniramine is mixed-type inhibitor. Further, theoretical calculations were carried out and relations between computed parameters and experimental inhibition efficiency were discussed.
Hiromi Tabo - One of the best experts on this subject based on the ideXlab platform.
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uniformly sized molecularly imprinted polymers for d chlorPheniramine influence of a porogen on their morphology and enantioselectivity
Journal of Pharmaceutical and Biomedical Analysis, 2008Co-Authors: Jun Haginaka, Hiromi Tabo, Chino KagawaAbstract:Uniformly sized molecularly imprinted polymers (MIPs) for d-chlorPheniramine have been prepared by a multi-step swelling and polymerization method using methacrylic acid (MAA) or 2-(trifluoromethyl)acrylic acid (TFMAA) as a functional monomer and toluene, phenylacetonitrile, benzylacetonitrile or chloroform as a porogen. From measurement of their scanning electron microscopy images and physical properties in the dry state, the MIP prepared using TFMAA and chloroform as the functional monomer and porogen, respectively, seemed to be non-porous and had extremely low specific surface areas and pore volumes, while the other MIPs were porous beads with high specific surface areas and pore volumes. All the MIPs prepared were evaluated using hydro-organic mobile phases in HPLC. As a result, they showed the similar retentive and enantioselective properties for chlorPheniramine, bromPheniramine and Pheniramine. This result suggests the presence of enantioselective binding sites in the swollen state for all the MIPs.
Ishtiaque Ahamad - One of the best experts on this subject based on the ideXlab platform.
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inhibition of mild steel corrosion in acid solution by Pheniramine drug experimental and theoretical study
Corrosion Science, 2010Co-Authors: Ishtiaque Ahamad, Rajendra Prasad, Mumtaz A. QuraishiAbstract:Inhibition of mild steel corrosion in 1 M HCl solution by Pheniramine drug was studied using weight loss, electrochemical impedance spectroscopy, linear polarization resistance, and potentiodynamic polarization measurements. The values of activation energy (Ea) and different thermodynamic parameters such as adsorption equilibrium constant (Kads), free energy of adsorption (ΔGads°), adsorption enthalpy (ΔHads°) and adsorption entropy (ΔSads°) were calculated and discussed. The adsorption process of studied drug on mild steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization measurements showed that Pheniramine is mixed-type inhibitor. Further, theoretical calculations were carried out and relations between computed parameters and experimental inhibition efficiency were discussed.
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inhibition of mild steel corrosion in acid solution by Pheniramine drug experimental and theoretical study
Corrosion Science, 2010Co-Authors: Ishtiaque Ahamad, Rajendra Prasad, Mumtaz A. QuraishiAbstract:Inhibition of mild steel corrosion in 1 M HCl solution by Pheniramine drug was studied using weight loss, electrochemical impedance spectroscopy, linear polarization resistance, and potentiodynamic polarization measurements. The values of activation energy (Ea) and different thermodynamic parameters such as adsorption equilibrium constant (Kads), free energy of adsorption (ΔGads°), adsorption enthalpy (ΔHads°) and adsorption entropy (ΔSads°) were calculated and discussed. The adsorption process of studied drug on mild steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization measurements showed that Pheniramine is mixed-type inhibitor. Further, theoretical calculations were carried out and relations between computed parameters and experimental inhibition efficiency were discussed.