The Experts below are selected from a list of 174 Experts worldwide ranked by ideXlab platform
Rafael Cela - One of the best experts on this subject based on the ideXlab platform.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating–water distribution coefficients for brominated flame retardants
Journal of Chromatography A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:Abstract A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating–water distribution constants ( K fs ) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture “Pentamix”, and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 °C were performed. K fs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol–water partition coefficients ( K ow ) values found in literature. A linear log–log relationship between K ow with K fs was found. To the best of our knowledge, this is the first study where brominated flame retardants K fs values are estimated.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating-water distribution coefficients for brominated flame retardants.
Journal of chromatography. A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating-water distribution constants (Kfs) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture "Pentamix", and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 degrees C were performed. Kfs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol-water partition coefficients (Kow) values found in literature. A linear log-log relationship between Kow with Kfs was found. To the best of our knowledge, this is the first study where brominated flame retardants Kfs values are estimated.
Maria Polo - One of the best experts on this subject based on the ideXlab platform.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating–water distribution coefficients for brominated flame retardants
Journal of Chromatography A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:Abstract A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating–water distribution constants ( K fs ) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture “Pentamix”, and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 °C were performed. K fs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol–water partition coefficients ( K ow ) values found in literature. A linear log–log relationship between K ow with K fs was found. To the best of our knowledge, this is the first study where brominated flame retardants K fs values are estimated.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating-water distribution coefficients for brominated flame retardants.
Journal of chromatography. A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating-water distribution constants (Kfs) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture "Pentamix", and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 degrees C were performed. Kfs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol-water partition coefficients (Kow) values found in literature. A linear log-log relationship between Kow with Kfs was found. To the best of our knowledge, this is the first study where brominated flame retardants Kfs values are estimated.
Susumu Kudo - One of the best experts on this subject based on the ideXlab platform.
-
adhesion and alignment of nonparenchymal cells onto a patterned surface with a two step plasma polymerization process
Plasma Processes and Polymers, 2015Co-Authors: Hitoshi Muguruma, Tatsuya Hoshino, Ryosuke Fujita, Takeki Sumii, Susumu KudoAbstract:The precise control for the micropatterning of nonparenchymal cells (endothelial cells; ECs and hepatic stellate cells; HSCs) is useful for regenerative medicine, artificial organs, and cell-based biodevice. The adhesion and alignment of nonparenchymal cells on a micro-patterned surface fabricated by two-step plasma polymerization process were investigated. The first functionalization step involves the deposition of a nitrogen-rich plasma-polymerized film to render the entire surface a cell-adherent region. Following this, a hydrophobic plasma-polymerized film is formed through a grid metal mask (Hundred-Micrometer-sized openings) to renders these areas cell repellent. Imaging ellipsometry showed that groove and ridge patterns 100 μm wide and steps with heights on the scale of tens of nanometers were obtained. EC and HSC culture experiments were conducted on the patterned surfaces. EC rapidly adhered and aligned along the cell-adherent groove of the patterned surface, while it did not adhere to the cell-repellent ridge. HSC patterning succeeded only when the height of the cell-repellent ridge was 20 nm, whereas the patterning failed when the ridge height was 10 nm. This indicates that EC patterning is possible with only a chemical effect, whereas HSC patterning required both a chemical effect and the topological constraints of the patterned surface.
-
Adhesion and Alignment of Nonparenchymal Cells onto a Patterned Surface with a Two‐Step Plasma Polymerization Process
Plasma Processes and Polymers, 2015Co-Authors: Hitoshi Muguruma, Tatsuya Hoshino, Ryosuke Fujita, Takeki Sumii, Susumu KudoAbstract:The precise control for the micropatterning of nonparenchymal cells (endothelial cells; ECs and hepatic stellate cells; HSCs) is useful for regenerative medicine, artificial organs, and cell-based biodevice. The adhesion and alignment of nonparenchymal cells on a micro-patterned surface fabricated by two-step plasma polymerization process were investigated. The first functionalization step involves the deposition of a nitrogen-rich plasma-polymerized film to render the entire surface a cell-adherent region. Following this, a hydrophobic plasma-polymerized film is formed through a grid metal mask (Hundred-Micrometer-sized openings) to renders these areas cell repellent. Imaging ellipsometry showed that groove and ridge patterns 100 μm wide and steps with heights on the scale of tens of nanometers were obtained. EC and HSC culture experiments were conducted on the patterned surfaces. EC rapidly adhered and aligned along the cell-adherent groove of the patterned surface, while it did not adhere to the cell-repellent ridge. HSC patterning succeeded only when the height of the cell-repellent ridge was 20 nm, whereas the patterning failed when the ridge height was 10 nm. This indicates that EC patterning is possible with only a chemical effect, whereas HSC patterning required both a chemical effect and the topological constraints of the patterned surface.
Maria Llompart - One of the best experts on this subject based on the ideXlab platform.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating–water distribution coefficients for brominated flame retardants
Journal of Chromatography A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:Abstract A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating–water distribution constants ( K fs ) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture “Pentamix”, and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 °C were performed. K fs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol–water partition coefficients ( K ow ) values found in literature. A linear log–log relationship between K ow with K fs was found. To the best of our knowledge, this is the first study where brominated flame retardants K fs values are estimated.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating-water distribution coefficients for brominated flame retardants.
Journal of chromatography. A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating-water distribution constants (Kfs) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture "Pentamix", and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 degrees C were performed. Kfs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol-water partition coefficients (Kow) values found in literature. A linear log-log relationship between Kow with Kfs was found. To the best of our knowledge, this is the first study where brominated flame retardants Kfs values are estimated.
Vanessa Casas - One of the best experts on this subject based on the ideXlab platform.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating–water distribution coefficients for brominated flame retardants
Journal of Chromatography A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:Abstract A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating–water distribution constants ( K fs ) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture “Pentamix”, and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 °C were performed. K fs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol–water partition coefficients ( K ow ) values found in literature. A linear log–log relationship between K ow with K fs was found. To the best of our knowledge, this is the first study where brominated flame retardants K fs values are estimated.
-
New approach based on solid-phase microextraction to estimate polydimethylsiloxane fibre coating-water distribution coefficients for brominated flame retardants.
Journal of chromatography. A, 2006Co-Authors: Maria Polo, Vanessa Casas, Maria Llompart, Carmen Garcia-jares, Rafael CelaAbstract:A depletion solid-phase microextraction (SPME) method based on multiple SPME extraction was applied to estimate fibre coating-water distribution constants (Kfs) of brominated flame retardants. Several polybrominated diphenyl ethers (PBDEs) including compounds present in the commercial mixture "Pentamix", and two polybrominated biphenyls (PBBs) were considered as target analytes. One Hundred-Micrometer poly(dimethylsiloxane) (PDMS) coating fibre was selected to estimate partition coefficients. SPME kinetics studies at 25 and 100 degrees C were performed. Kfs values obtained at both temperatures for brominated flame retardants were compared with the corresponding octanol-water partition coefficients (Kow) values found in literature. A linear log-log relationship between Kow with Kfs was found. To the best of our knowledge, this is the first study where brominated flame retardants Kfs values are estimated.