Surfactant modified

Crocker FH, WA Guerin, SA Boyd (1995) Bioavailability of naphthalene sorbed to cationic surfactant-modified smectite clay. Environ Sci Technol 29 2953-2958. 

The electrochemical response of analytes at the CNT-modified electrodes is influenced by the surfactants which are used as dispersants. CNT-modified electrodes using cationic surfactant CTAB as a dispersant showed an improved catalytic effect for negatively charged small molecular analytes, such as potassium ferricyanide and ascorbic acid, whereas anionic surfactants such as SDS showed a better catalytic activity for a positively charged analyte such as dopamine. This effect, which is ascribed mainly to the electrostatic interactions, is also observed for the electrochemical response of a negatively charged macromolecule such as DNA on the CNT (surfactant)-modified electrodes (see Fig. 15.12). An oxidation peak current near +1.0 V was observed only at the CNT/CTAB-modified electrode in the DNA solution (curve (ii) in Fig. 15.12a). The differential pulse voltammetry of DNA at the CNT/CTAB-modified electrode also showed a sharp peak current, which is due to the oxidation of the adenine residue in DNA (curve (ii) in Fig. 15.12b). The different effects of surfactants for CNTs to promote the electron transfer of DNA are in agreement with the electrostatic interactions... 

Kassis, C.M. DeSimone, J.M. Linton, R.W. Lange, G.W. Friedman, R.M. An Investigation into the Importance of Polymer-Matrix Miscibility Using Surfactant Modified MALDI-MS. Rapid Commun. Mass Spectrom. 1997, 77, 1462-1466. 

T0554 New Mexico Institute of Mining and Technology, Surfactant—Modified Zeolite T0588 Pacific Northwest National Laboratory, Self-Assembled Mesoporous Support (SAMMS) Technology... 

T0554 New Mexico Institute of Mining and Technology Surfactant-Modified Zeolite... 

The New Mexico Institnte of Mining and Technology has developed surfactant-modified zeolite (SMZ) technology for nse as an in sitn permeable barrier to remove organic and inorganic... 

I 26.2, II 26.7, III 27.4 and IV 26.4mm. The heats- of expln and the extents of det on were consistently higher for surfactant-modified todanits than for the control. The amt of CO was lower for the modified expls than for the nonmodified used for the control. 

Li, Z., Beachner, R., McManama, Z. and Hanlie, H. (2007) Sorption of arsenic by surfactant-modified zeolite and kaolinite. Microporous and Me soporous Materials, 105(3), 291-97. 

Sullivan, E.J., Bowman, R.S. and Legiec, I.A. (2003) Sorption of arsenic from soil-washing leachate by surfactant-modified zeolite. Journal of Environmental Quality, 32(6), 2387-91. 

Large Experimental Aquifer Program test site Surfactant- modified zeolite Bowman (this book) Pilot test in 1997... 

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