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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yadav, Amrita R. Sriram, Rashmi Carter, Jared A. Miller, Benjamin L. |
| Description | Country affiliation: United States Author Affiliation: Yadav AR ( Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA.); Sriram R ( Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA.); Carter JA ( Adarza Biosystems, Inc., West Henrietta, NY, USA.); Miller BL ( Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA) |
| Abstract | The uniformity of aminosilane layers typically used for the modification of hydroxyl bearing surfaces such as silicon dioxide is critical for a wide variety of applications, including biosensors. However, in spite of many studies that have been undertaken on surface silanization, there remains a paucity of easy-to-implement deposition methods reproducibly yielding smooth aminosilane monolayers. In this study, solution- and vapor-phase deposition methods for three aminoalkoxysilanes differing in the number of reactive groups (3-aminopropyl triethoxysilane (APTES), 3-aminopropyl methyl diethoxysilane (APMDES) and 3-aminopropyl dimethyl ethoxysilane (APDMES)) were assessed with the aim of identifying methods that yield highly uniform and reproducible silane layers that are resistant to minor procedural variations. Silane film quality was characterized based on measured thickness, hydrophilicity and surface roughness. Additionally, hydrolytic stability of the films was assessed via these thickness and contact angle values following desorption in water. We found that two simple solution-phase methods, an aqueous deposition of APTES and a toluene based deposition of APDMES, yielded high quality silane layers that exhibit comparable characteristics to those deposited via vapor-phase methods. |
| File Format | HTM / HTML |
| ISSN | 09284931 |
| e-ISSN | 18730191 |
| DOI | 10.1016/j.msec.2013.11.017 |
| Journal | Materials Science and Engineering: C |
| Volume Number | 35 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-02-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Discipline Materials Science Coated Materials, Biocompatible Chemical Synthesis Silanes Chemistry Silicon Dioxide Adsorption Gases Hydrophobic And Hydrophilic Interactions Materials Testing Phase Transition Surface Properties Comparative Study Research Support, N.i.h., Extramural |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Biomaterials Condensed Matter Physics Bioengineering Mechanical Engineering |
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