The Experts below are selected from a list of 240 Experts worldwide ranked by ideXlab platform
Renata Corrêa Pascotto - One of the best experts on this subject based on the ideXlab platform.
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fourier transform infrared photoacoustic spectroscopy study of Physicochemical Interaction between human dentin and etch rinse adhesives in a simulated moist bond technique
Journal of Biomedical Optics, 2012Co-Authors: Adriana Lemos Mori Ubaldini, Mauro Luciano Baesso, Elizandra Sehn, Francielle Sato, Ana Raquel Benetti, Renata Corrêa PascottoAbstract:The purpose of this study was to provide the Physicochemical Interactions at the interfaces between two commercial etch-&-rinse adhesives and human dentin in a simulated moist bond technique. Six dentin specimens were divided into two groups (n ¼ 3) according to the use of two different adhesive systems: (a) 2-hydroxyethyl- methacrylate (HEMA) and 4-methacryloxyethyl trimellitate anhydrate (4-META), and (b) HEMA. The Fourier trans- form infrared photoacoustic spectroscopy was performed before and after dentin treatment with 37% phosphoric acid, with adhesive systems and also for the adhesive systems alone. Acid-conditioning resulted in a decalcification pattern. Adhesive treated spectra subtraction suggested the occurrence of chemical bonding to dentin expressed through modifications of the OH stretching peak (3340 cm −1 ) and symmetric CH stretching (2900 cm −1 ) for both adhesives spectra; a decrease of orthophosphate absorption band (1040 to 970 cm −1 ) for adhesive A and a better resolved complex band formation (1270 to 970 cm −1 ) for adhesive B were observed. These results suggested the occurrence of chemical bonding between sound human dentin and etch-&-rinse adhesives through a clinical
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Fourier transform infrared photoacoustic spectroscopy study of Physicochemical Interaction between human dentin and etch-&-rinse adhesives in a simulated moist bond technique
Journal of biomedical optics, 2012Co-Authors: Adriana Lemos Mori Ubaldini, Mauro Luciano Baesso, Elizandra Sehn, Francielle Sato, Ana Raquel Benetti, Renata Corrêa PascottoAbstract:The purpose of this study was to provide the Physicochemical Interactions at the interfaces between two commercial etch-&-rinse adhesives and human dentin in a simulated moist bond technique. Six dentin specimens were divided into two groups (n ¼ 3) according to the use of two different adhesive systems: (a) 2-hydroxyethyl- methacrylate (HEMA) and 4-methacryloxyethyl trimellitate anhydrate (4-META), and (b) HEMA. The Fourier trans- form infrared photoacoustic spectroscopy was performed before and after dentin treatment with 37% phosphoric acid, with adhesive systems and also for the adhesive systems alone. Acid-conditioning resulted in a decalcification pattern. Adhesive treated spectra subtraction suggested the occurrence of chemical bonding to dentin expressed through modifications of the OH stretching peak (3340 cm −1 ) and symmetric CH stretching (2900 cm −1 ) for both adhesives spectra; a decrease of orthophosphate absorption band (1040 to 970 cm −1 ) for adhesive A and a better resolved complex band formation (1270 to 970 cm −1 ) for adhesive B were observed. These results suggested the occurrence of chemical bonding between sound human dentin and etch-&-rinse adhesives through a clinical
Lei Yuan - One of the best experts on this subject based on the ideXlab platform.
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dual functionalized protic ionic liquids for efficient absorption of nh3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai GaoAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry
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Dual‐functionalized protic ionic liquids for efficient absorption of NH3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai Gao, Shaojuan ZengAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry
Adriana Lemos Mori Ubaldini - One of the best experts on this subject based on the ideXlab platform.
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fourier transform infrared photoacoustic spectroscopy study of Physicochemical Interaction between human dentin and etch rinse adhesives in a simulated moist bond technique
Journal of Biomedical Optics, 2012Co-Authors: Adriana Lemos Mori Ubaldini, Mauro Luciano Baesso, Elizandra Sehn, Francielle Sato, Ana Raquel Benetti, Renata Corrêa PascottoAbstract:The purpose of this study was to provide the Physicochemical Interactions at the interfaces between two commercial etch-&-rinse adhesives and human dentin in a simulated moist bond technique. Six dentin specimens were divided into two groups (n ¼ 3) according to the use of two different adhesive systems: (a) 2-hydroxyethyl- methacrylate (HEMA) and 4-methacryloxyethyl trimellitate anhydrate (4-META), and (b) HEMA. The Fourier trans- form infrared photoacoustic spectroscopy was performed before and after dentin treatment with 37% phosphoric acid, with adhesive systems and also for the adhesive systems alone. Acid-conditioning resulted in a decalcification pattern. Adhesive treated spectra subtraction suggested the occurrence of chemical bonding to dentin expressed through modifications of the OH stretching peak (3340 cm −1 ) and symmetric CH stretching (2900 cm −1 ) for both adhesives spectra; a decrease of orthophosphate absorption band (1040 to 970 cm −1 ) for adhesive A and a better resolved complex band formation (1270 to 970 cm −1 ) for adhesive B were observed. These results suggested the occurrence of chemical bonding between sound human dentin and etch-&-rinse adhesives through a clinical
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Fourier transform infrared photoacoustic spectroscopy study of Physicochemical Interaction between human dentin and etch-&-rinse adhesives in a simulated moist bond technique
Journal of biomedical optics, 2012Co-Authors: Adriana Lemos Mori Ubaldini, Mauro Luciano Baesso, Elizandra Sehn, Francielle Sato, Ana Raquel Benetti, Renata Corrêa PascottoAbstract:The purpose of this study was to provide the Physicochemical Interactions at the interfaces between two commercial etch-&-rinse adhesives and human dentin in a simulated moist bond technique. Six dentin specimens were divided into two groups (n ¼ 3) according to the use of two different adhesive systems: (a) 2-hydroxyethyl- methacrylate (HEMA) and 4-methacryloxyethyl trimellitate anhydrate (4-META), and (b) HEMA. The Fourier trans- form infrared photoacoustic spectroscopy was performed before and after dentin treatment with 37% phosphoric acid, with adhesive systems and also for the adhesive systems alone. Acid-conditioning resulted in a decalcification pattern. Adhesive treated spectra subtraction suggested the occurrence of chemical bonding to dentin expressed through modifications of the OH stretching peak (3340 cm −1 ) and symmetric CH stretching (2900 cm −1 ) for both adhesives spectra; a decrease of orthophosphate absorption band (1040 to 970 cm −1 ) for adhesive A and a better resolved complex band formation (1270 to 970 cm −1 ) for adhesive B were observed. These results suggested the occurrence of chemical bonding between sound human dentin and etch-&-rinse adhesives through a clinical
Hongshuai Gao - One of the best experts on this subject based on the ideXlab platform.
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dual functionalized protic ionic liquids for efficient absorption of nh3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai GaoAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry
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Dual‐functionalized protic ionic liquids for efficient absorption of NH3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai Gao, Shaojuan ZengAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry
Xiangping Zhang - One of the best experts on this subject based on the ideXlab platform.
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dual functionalized protic ionic liquids for efficient absorption of nh3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai GaoAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry
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Dual‐functionalized protic ionic liquids for efficient absorption of NH3 through synergistically Physicochemical Interaction
Journal of Chemical Technology & Biotechnology, 2020Co-Authors: Lei Yuan, Xiangping Zhang, Baozeng Ren, Yingliang Yang, Yinge Bai, Lu Bai, Hongshuai Gao, Shaojuan ZengAbstract:BACKGROUND: Ionic liquids have become promising media for the treatment of tail gases containing ammonia (NH₃), which causes serious environmental problems and threatens human health. RESULTS: In this work, four dual‐functionalized protic ionic liquids (DPILs) [CₙOHim]X (n = 1, 2; X = [NTf₂]⁻, [BF₄]⁻, [SCN]⁻) with both weak acidity proton and hydroxyl group were designed and synthesized for enhanced NH₃ separation. Among them, the maximum NH₃ molar solubility of 3.11 mol NH₃ mol–¹ IL was achieved in [EtOHim][NTf₂] at 40 °C and atmospheric pressure, and the highest mass solubility of NH₃ could be 0.221 g NH₃ g–¹ IL in [EtOHim][SCN]; this is the highest value of any absorbent ever reported under the same conditions. Not only superior NH₃ solubility, along with excellent selectivity of NH₃/CO₂ (65) and NH₃/N₂ (104), but also outstanding recyclability was exhibited in DPILs. CONCLUSIONS: The highly efficient performance of NH₃ absorption by DPILs was ascribed to the synergistically Physicochemical Interaction between weak acidity proton, hydroxyl group and NH₃, which was confirmed through both spectrum analysis and quantum chemical calculations. This work implied that DPILs have great potentials in NH₃ separation and recovery of NH₃‐containing tail gases. © 2020 Society of Chemical Industry