Silicones on glass surfaces

Bennett, D. R.; Matisons, Janis G.; Netting, Angus K. O.; Smart, Roger St. C.; Swincer, A. Geoffrey

doi:10.1002/pi.4990270209

Cited by 11 publications

(4 citation statements)

References 25 publications

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“…Poly(dimethylsiloxane)s, physisorbed onto glass surfaces, are readily removed by washing with excess solvent, in agreement with our earlier observations on the adsorption of various functionalized siloxanes to glass fiber surfaces …”

Section: Xps Analysissupporting

confidence: 91%

“…The use of DRIFT, XPS, and SEM techniques has now allowed for ready characterization of siloxane polymers on glass surfaces. , DRIFT was used as an initial qualitative check to determine if adsorption between the α-amino acid−β-hydroxysiloxanes and the glass fibers has occurred. The glass fibers were then analyzed by XPS to determine the elemental composition of the α-amino−β-hydroxysiloxanes on the glass, and their surface coverage.…”

Section: Introductionmentioning

confidence: 99%

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α-Amino Acid−β-Hydroxysiloxanes on E-Glass Fibers

1998

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α-Amino acid−β-hydroxysiloxanes prepared previously by our group were coupled to E-glass fibers to gain a better understanding of the surface processes at the polymer−glass interface of composite materials. Use of DRIFT (diffuse reflectance infrared Fourier transform spectroscopy), XPS (X-ray photoelectron spectroscopy), and SEM techniques allowed for the qualitative and quantitative determination of such processes. Our studies indicate that binding to the E-glass is occurring through different mechanisms, primarily hydrogen bonding, as evidenced by DRIFT and SEM. XPS studies confirm that the amino group is binding to the surface, as evidenced by the formation of two amino states, a covalent nonprotonated and an ionic protonated form. A theoretical model depicting the binding of polymer to E-glass fibers has also been proposed.

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Section: Xps Analysissupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

α-Amino Acid−β-Hydroxysiloxanes on E-Glass Fibers

1998

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“…13 shows the evidence of the Si-C bond of VTES. These results confirm the coating of the RO membrane with silane compounds [16,27].…”

Section: Chemical Structure Of the Silane-coated Membranes By Xps Studysupporting

confidence: 87%

Modification to the polyamide TFC RO membranes for improvement of chlorine-resistance

Shin

Kim

Lee

2011

Journal of Membrane Science

101

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“…Silanation. The silanation process has already been described. − Briefly, silicon oxide wafers were immersed in sulfochromic acid for 1 h at 70 °C, to ensure the elimination of carbon contamination. Then, they were dried by a pure nitrogen stream and immediately immersed in the silane solution (2% v/v of methyl- n -octadecyldiethoxysilane (MODES) in anhydrous toluene).…”

Section: Methodsmentioning

confidence: 99%

Quantification of Specific Immunological Reactions by Atomic Force Microscopy

1997

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The aim of this work is to demonstrate the ability of atomic force microscopy (AFM) to detect and to quantify specific immunological reactions between antibodies and antigens, with a view to creating a very sensitive biosensor. A monolayer of antiferritin antibodies was adsorbed onto alkyl silane modified silicon oxide substrates, which were characterized by X-ray photoelectron spectroscopy (XPS) and contact angle measurements. The sensitivity limit for antibody detection was quantified by radioimmunoassay (RIA) and compared to that obtained by enzyme linked immuno sorbent assay (ELISA) and by AFM after antibody binding with colloidal gold labeled conjugates. In this latter case, substrate modification after reaction was checked by measuring the surface roughness (R rms) variations. AFM was found to be more sensitive than RIA, with a detection limit of 0.3 × 10-3 ng of antibodies per mm2. Then, the biosensor performance was investigated using ferritin solutions of various concentrations: the antibody/antigen reaction was quantified by directly detecting the antigen and measuring surface roughness modifications. Results were compared to sandwich immunoassay techniques. Up to now, AFM has detected a minimum ferritin concentration of 0.06 μg/mL.

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Silicones on glass surfaces

Cited by 11 publications

References 25 publications

α-Amino Acid−β-Hydroxysiloxanes on E-Glass Fibers

α-Amino Acid−β-Hydroxysiloxanes on E-Glass Fibers

Modification to the polyamide TFC RO membranes for improvement of chlorine-resistance

Quantification of Specific Immunological Reactions by Atomic Force Microscopy

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