The Experts below are selected from a list of 734772 Experts worldwide ranked by ideXlab platform
Ian M. White - One of the best experts on this subject based on the ideXlab platform.
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optofluidic microsystems for chemical and Biological Analysis
Nature Photonics, 2011Co-Authors: Ian M. WhiteAbstract:Optofluidics — the synergistic integration of photonics and microfluidics — is a new analytical field that provides a number of unique characteristics for enhancing the sensing performance and simplifying the design of microsystems. This Review describes various optofluidic architectures developed over the past five years, emphasizes the mechanisms by which optofluidics enhances Biological/chemical analytic capabilities, including sensing and the precise control of Biological micro- and nanoparticles, and also highlights new research directions to which the field of optofluidics may lead.
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Optofluidic microsystems for chemical and Biological Analysis
Nature Photonics, 2011Co-Authors: Xudong Fan, Ian M. WhiteAbstract:Optofluidics - the synergistic integration of photonics and microfluidics - has recently emerged as a new analytical field that provides a number of unique characteristics for enhanced sensing performance and simplification of microsystems. In this review, we describe various optofluidic architectures developed in the past five years, emphasize the mechanisms by which optofluidics enhances bio/chemical Analysis capabilities, including sensing and the precise control of Biological micro/nanoparticles, and envision new research directions to which optofluidics leads.
Jeanphilippe Delgenes - One of the best experts on this subject based on the ideXlab platform.
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Chemical and Biological Analysis of endocrine‐disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental toxicology and chemistry, 2008Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Miren Lopez De Alda, Marina Kuster, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E1), 17β-estradiol (E2), estriol (E3), 17α-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E1 and E3. The estrogenic activity was between 25 and 130 ng/L of E2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
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Chemical and Biological Analysis of endocrine-disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental Toxicology and Chemistry, 2008Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Marina Kuster, Miren Lopez De Alda, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E-1), 17 beta-estradiol (E-2), estriol (E-3), 17 alpha-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E-1 and E-3. The estrogenic activity was between 25 and 130 ng/L of E-2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E-2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
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chemical and Biological Analysis of endocrine disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental Toxicology and Chemistry, 2007Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Miren Lopez De Alda, Marina Kuster, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E1), 17β-estradiol (E2), estriol (E3), 17α-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E1 and E3. The estrogenic activity was between 25 and 130 ng/L of E2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
Xudong Fan - One of the best experts on this subject based on the ideXlab platform.
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Optofluidics in chemical and Biological Analysis
Frontiers in Optics 2012 Laser Science XXVIII, 2012Co-Authors: Yuze Sun, Xudong FanAbstract:The paper highlights the recent research progress in the thin-walled capillary optofluidic ring resonator and nanohole array capillary sensing platforms developed in our lab. Sensing performance in both gas detection and biomolecular detection is presented.
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Optofluidic microsystems for chemical and Biological Analysis
Nature Photonics, 2011Co-Authors: Xudong Fan, Ian M. WhiteAbstract:Optofluidics - the synergistic integration of photonics and microfluidics - has recently emerged as a new analytical field that provides a number of unique characteristics for enhanced sensing performance and simplification of microsystems. In this review, we describe various optofluidic architectures developed in the past five years, emphasize the mechanisms by which optofluidics enhances bio/chemical Analysis capabilities, including sensing and the precise control of Biological micro/nanoparticles, and envision new research directions to which optofluidics leads.
Mathieu Muller - One of the best experts on this subject based on the ideXlab platform.
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Chemical and Biological Analysis of endocrine‐disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental toxicology and chemistry, 2008Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Miren Lopez De Alda, Marina Kuster, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E1), 17β-estradiol (E2), estriol (E3), 17α-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E1 and E3. The estrogenic activity was between 25 and 130 ng/L of E2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
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Chemical and Biological Analysis of endocrine-disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental Toxicology and Chemistry, 2008Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Marina Kuster, Miren Lopez De Alda, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E-1), 17 beta-estradiol (E-2), estriol (E-3), 17 alpha-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E-1 and E-3. The estrogenic activity was between 25 and 130 ng/L of E-2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E-2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
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chemical and Biological Analysis of endocrine disrupting hormones and estrogenic activity in an advanced sewage treatment plant
Environmental Toxicology and Chemistry, 2007Co-Authors: Mathieu Muller, Fanja Rabenoelina, Patrick Balaguer, Dominique Patureau, Karin Lemenach, Helene Budzinski, Damia Barcelo, Miren Lopez De Alda, Marina Kuster, Jeanphilippe DelgenesAbstract:The steroid hormones estrone (E1), 17β-estradiol (E2), estriol (E3), 17α-ethinylestradiol (EE2), and their conjugated forms were surveyed throughout an advanced sewage treatment plant (STP). The estrogen concentrations in water and sludge samples, collected in October 2004 and April 2005, were determined by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry. Simultaneously, the estrogenic activity was quantified using estrogen-responsive reporter cell lines (MELN) to investigate the behavior of overall estrogenic compounds. The estrogen concentrations in the inlet ranged from 200 to 500 ng/L, with the contribution of conjugated forms being higher than 50%. The major estrogens in influent were E1 and E3. The estrogenic activity was between 25 and 130 ng/L of E2 equivalents (EEQs). Estrogen concentrations and estrogenicity measured in the inlet and in primary treated sewage were similar, showing a weak impact of primary treatment on hormone removal. In contrast, both estrogen concentration and estrogenicity decreased during Biological treatment, with high removal efficiencies (>90%). Estrone, E2, and EE2 persisted in the treated water below 10 ng/L, whereas the estrogenicity was lower than 5 ng/L of EEQs. Estrogen mass flux in the effluent and sludge represented less than 2 and 4%, respectively, of the inlet. Consequently, the fraction of estrogens sorbed into the sludge was very small, and biodegradation was the main vehicle for estrogen elimination. This dual approach, comparing chemical and Biological Analysis, allowed us to confirm that most of the estrogenic activity occurring in this STP, which receives mainly domestic sewage, resulted from sex hormones.
Miguel Ángel Rodríguez-delgado - One of the best experts on this subject based on the ideXlab platform.
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Current trends in QuEChERS method. A versatile procedure for food, environmental and Biological Analysis
TrAC Trends in Analytical Chemistry, 2019Co-Authors: Álvaro Santana-mayor, Bárbara Socas-rodríguez, Antonio V. Herrera-herrera, Miguel Ángel Rodríguez-delgadoAbstract:Abstract QuEChERS (quick, easy, cheap, effective, rugged, and safe) method was initially developed by Anastassiades and coworkers as an interesting alternative based on the main principles of the Green Chemistry to the determination of pesticides in fruits and vegetables. However, the great versatility of the procedure has allowed its application in other types of matrices and analytes with excellent results. In fact, nowadays the main advantages of QuEChERS such as the effective elimination of matrix effect as well as obtain a high recovery of target analytes are extensively known in diverse fields such as food, environmental and Biological Analysis. This review article pretends to provide an overview of the most relevant applications of the QuEChERS method in the last five years in these three different areas as well as the main trends regarding of the development and evolution of this sample preparation protocol.
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Current trends in QuEChERS method. A versatile procedure for food, environmental and Biological Analysis TrAC- Special Issue “Green Extraction Techniques”
Trends in Analytical Chemistry, 2019Co-Authors: Álvaro Santana-mayor, Bárbara Socas-rodríguez, Antonio V. Herrera-herrera, Miguel Ángel Rodríguez-delgadoAbstract:QuEChERS (quick, easy, cheap, effective, rugged, and safe) method was initially developed by Anastassiades and coworkers as an interesting alternative based on the main principles of the Green Chemistry to the determination of pesticides in fruit and vegetables. However, the great versatility of the procedure has allowed its application in other types of matrices and analytes with excellent results. In fact, nowadays the main advantages of QuEChERS such as the effective elimination of matrix effect as well as obtain a high recovery of target analytes are extensively known in diverse fields such as food, environmental and Biological Analysis. This review article pretends to provide an overview of the most relevant applications of the QuEChERS method in the last five years in these three different areas as well as the main trends regarding of the development and evolution of this sample preparation protocol.