The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Klaus Huber - One of the best experts on this subject based on the ideXlab platform.

  • Interactions in mixed interfaces of binary surfactant solutions
    Journal of Colloid and Interface Science, 1991
    Co-Authors: Klaus Huber
    Abstract:

    A regular solution model is used to interpret the behavior of binary surfactant mixtures at the liquid/vapor and the solid/liquid interface. Two nonionic surfactants with the general formula H(CH2)n(OCH2CH2)mOH, wherem is 4 and 8, are used in three different types of binary surfactant combinations: mixtures of two nonionic surfactants, mixtures of Tetradecyl Sulfate Sodium salt with both nonionic surfactants, and mixtures of dodecyl sulfonate Sodium salt with both nonionic surfactants. Two anionic/nonionic mixtures each have the same anionic component, thus giving evidence for correlations between the structure of the nonionic surfactant and the interaction with an anionic component. It can be shown that at the solid/liquid interface, the interaction between the anionic surfactant and the nonionic surfactant with the smaller hydrophilic headgroup is always significantly lower than that between the same anionic component and the nonionic surfactant with the larger hydrophilic headgroup.

Jiyu Fang - One of the best experts on this subject based on the ideXlab platform.

  • Surface modified liquid crystal droplets as an optical probe for the detection of bile acids in microfluidic channels
    Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018
    Co-Authors: Jinan Deng, Xiaochen Wang, Wenlang Liang, David Richardson, Jiyu Fang
    Abstract:

    Abstract We report the surface modification of 4-n-pentyl-4’-cyanobiphenyl (5CB) droplets in aqueous solution by the adsorption of Sulfated β-CD/Tetradecyl Sulfate Sodium (SC14S) complexes at the 5CB-aqueous interface, followed by the coating of poly(diallyldimethylammonium chloride) (PDADMAC) through electrostatic interaction. The PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets are highly stable in aqueous solution. We show that bile acids are able to penetrate into the PDADMAC coating and displace the SC14S from the cavity of the β-CD immobilized at the surface of the 5CB droplets through the competitive host-guest recognition, consequently inducing the radial-to-bipolar configuration transition of the 5CB droplets. The integration of PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets in microfluidic channels allows the selective detection of bile acids in a small sample volume (1 μL) in the presence of ascorbic acid, uric acid, creatinine and urea by observing the configuration transition of the 5CB droplets. The detection limit of the miniaturized 5CB droplet-based sensor platform for bile acids can be tuned by the number density of 5CB droplets.

Jinan Deng - One of the best experts on this subject based on the ideXlab platform.

  • Surface modified liquid crystal droplets as an optical probe for the detection of bile acids in microfluidic channels
    Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018
    Co-Authors: Jinan Deng, Xiaochen Wang, Wenlang Liang, David Richardson, Jiyu Fang
    Abstract:

    Abstract We report the surface modification of 4-n-pentyl-4’-cyanobiphenyl (5CB) droplets in aqueous solution by the adsorption of Sulfated β-CD/Tetradecyl Sulfate Sodium (SC14S) complexes at the 5CB-aqueous interface, followed by the coating of poly(diallyldimethylammonium chloride) (PDADMAC) through electrostatic interaction. The PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets are highly stable in aqueous solution. We show that bile acids are able to penetrate into the PDADMAC coating and displace the SC14S from the cavity of the β-CD immobilized at the surface of the 5CB droplets through the competitive host-guest recognition, consequently inducing the radial-to-bipolar configuration transition of the 5CB droplets. The integration of PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets in microfluidic channels allows the selective detection of bile acids in a small sample volume (1 μL) in the presence of ascorbic acid, uric acid, creatinine and urea by observing the configuration transition of the 5CB droplets. The detection limit of the miniaturized 5CB droplet-based sensor platform for bile acids can be tuned by the number density of 5CB droplets.

Wenlang Liang - One of the best experts on this subject based on the ideXlab platform.

  • Surface modified liquid crystal droplets as an optical probe for the detection of bile acids in microfluidic channels
    Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018
    Co-Authors: Jinan Deng, Xiaochen Wang, Wenlang Liang, David Richardson, Jiyu Fang
    Abstract:

    Abstract We report the surface modification of 4-n-pentyl-4’-cyanobiphenyl (5CB) droplets in aqueous solution by the adsorption of Sulfated β-CD/Tetradecyl Sulfate Sodium (SC14S) complexes at the 5CB-aqueous interface, followed by the coating of poly(diallyldimethylammonium chloride) (PDADMAC) through electrostatic interaction. The PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets are highly stable in aqueous solution. We show that bile acids are able to penetrate into the PDADMAC coating and displace the SC14S from the cavity of the β-CD immobilized at the surface of the 5CB droplets through the competitive host-guest recognition, consequently inducing the radial-to-bipolar configuration transition of the 5CB droplets. The integration of PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets in microfluidic channels allows the selective detection of bile acids in a small sample volume (1 μL) in the presence of ascorbic acid, uric acid, creatinine and urea by observing the configuration transition of the 5CB droplets. The detection limit of the miniaturized 5CB droplet-based sensor platform for bile acids can be tuned by the number density of 5CB droplets.

David Richardson - One of the best experts on this subject based on the ideXlab platform.

  • Surface modified liquid crystal droplets as an optical probe for the detection of bile acids in microfluidic channels
    Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018
    Co-Authors: Jinan Deng, Xiaochen Wang, Wenlang Liang, David Richardson, Jiyu Fang
    Abstract:

    Abstract We report the surface modification of 4-n-pentyl-4’-cyanobiphenyl (5CB) droplets in aqueous solution by the adsorption of Sulfated β-CD/Tetradecyl Sulfate Sodium (SC14S) complexes at the 5CB-aqueous interface, followed by the coating of poly(diallyldimethylammonium chloride) (PDADMAC) through electrostatic interaction. The PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets are highly stable in aqueous solution. We show that bile acids are able to penetrate into the PDADMAC coating and displace the SC14S from the cavity of the β-CD immobilized at the surface of the 5CB droplets through the competitive host-guest recognition, consequently inducing the radial-to-bipolar configuration transition of the 5CB droplets. The integration of PDADMAC/Sulfate β-CD/SC14S complex-coated 5CB droplets in microfluidic channels allows the selective detection of bile acids in a small sample volume (1 μL) in the presence of ascorbic acid, uric acid, creatinine and urea by observing the configuration transition of the 5CB droplets. The detection limit of the miniaturized 5CB droplet-based sensor platform for bile acids can be tuned by the number density of 5CB droplets.