A new interpretation of the glass‐coupling agent surface through use of electron microscopy

Sterman, S.; Bradley, H. B.

doi:10.1002/pen.760010413

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…The APS deposition step of our OPSPPA films was done in a solution with 5% water, as is more typical for technological applications. Under these conditions it has been observed that multilayers and/or “mounds” of polymerized APS can form. − We made measurements on several batches of OPSPPA films, prepared at different times under similar conditions. In some cases we did indeed observe polymerized mounds resting on an underlying smooth self-assembled film, while in other cases, under particularly rigorous deposition conditions, such mounds were less evident.…”

Section: Introductionmentioning

confidence: 99%

Structure and Growth of Chromophore-Functionalized (3-Aminopropyl)triethoxysilane Self-Assembled on Silicon

Heiney¹,

Grüneberg²,

Fang³

et al. 2000

Langmuir

121

101

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We have used X-ray reflectivity, ellipsometry, and X-ray photoelectron spectroscopy to characterize self-assembled films of (3-aminopropyl)triethoxysilane (APS) functionalized with a photosensitive chromophore. Using the evolution of film thickness with time devoted to initial APS adsorption on the surface, we obtain a model for the structure and growth dynamics of the film. LA990557W(43) Dulcey, C.; Gru ¨neberg, K. Unpublished results.

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Section: Introductionmentioning

confidence: 99%

Structure and Growth of Chromophore-Functionalized (3-Aminopropyl)triethoxysilane Self-Assembled on Silicon

Heiney¹,

Grüneberg²,

Fang³

et al. 2000

Langmuir

121

101

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“…The method used to clean the glass surface will alter the joint strength for surfaces with and without a coupling agent applied. 6. The cure history of the polymer will greatly affect the joint strength due to creation of residual pressures normal and parallel to glass surface.…”

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confidence: 99%

Glass‐resin joint strength and their effect on failure mechanisms in reinforced plastics

Broutman¹

1966

Polymer Engineering & Sci

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The various methods which have been used to measure the joint strength of a glass‐polymer interface have been reviewed and the results compared. Conclusions have been made regarding the strength of polyester and epoxy joints and the role of the coupling agent in enhancing this strength. Bond strength methods discussed include the flat plate test as well as the single filament techniques. The stresses which exist at the interface in an actual comosite are calculated. The relation of the glass‐polymer joint strength to the final strength to the final strength of a glass reinforced plastic composite is dissussed. The interaction of the interface with an advancing crack is also considered.

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“…Spatial characteristics such as film uniformity and film thickness are also important for biosensing and biosensor fabrication. For example, the uncontrolled deposition of silanes onto silicon and glass surfaces can result in films with a loose network structure, and the final morphology and thickness (typically 1 to 8 molecular layers) are sensitive to water content, pH, and temperature. − To reveal more information about the thickness and uniformity of adsorbed TMS-EDTA layer(s) on Au, atomic force microscopy (AFM) was used. Topography (Figure A) and lateral friction (Figure B) measurements from AFM contact mode imaging of a clean Au substrate and TMS-EDTA-modified Au are shown.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of a Carboxylated Silane on Gold: Characterization for Its Rational Use in Hybrid Glass/Gold Substrates

et al. 2016

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Integrated sensing and biosensing microfluidic systems often require sealing between polysiloxane, glass, and gold interfaces, while maintaining functional support on the gold surface within the cell chamber (e.g., biomolecular interaction analysis). A carboxylated trimethoxysilane (TMS-EDTA) coating has been shown to facilitate the bonding of polydimethylsiloxane (PDMS) to gold and glass slides. In this work, the adsorption of TMS-EDTA onto Au is characterized in order to enable its rational use in hybrid glass/gold substrates. Surface plasmon resonance results suggest that carboxylates are available for streptavidin immobilization. Atomic force microscopy studies indicate that a uniform surface coverage with monolayer thickness is formed. Infrared spectroscopy studies confirm that the carboxyl groups are present. Moreover, there is little evidence of siloxane cross-linking. Electrochemical differential capacitance measurements reveal that the potential-dependent free energies of adsorption are ∼−20 to–30 kJ/mol (for potentials between −0.5 and 0.2 V) in the complex electrolyte solution used. Furthermore, at highly negative potentials (∼−1.1 V), TMS-EDTA desorbs from the Au surface. The fundamental knowledge obtained about TMS-EDTA adsorption on Au can be applied to construct robust PDMS-based systems with hybrid glass/gold substrates.

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A new interpretation of the glass‐coupling agent surface through use of electron microscopy

Cited by 13 publications

References 11 publications

Structure and Growth of Chromophore-Functionalized (3-Aminopropyl)triethoxysilane Self-Assembled on Silicon

Structure and Growth of Chromophore-Functionalized (3-Aminopropyl)triethoxysilane Self-Assembled on Silicon

Glass‐resin joint strength and their effect on failure mechanisms in reinforced plastics

Adsorption of a Carboxylated Silane on Gold: Characterization for Its Rational Use in Hybrid Glass/Gold Substrates

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