Hybrid Sol-Gel-Derived Films That Spontaneously Form Complex Surface Topographies

Joel F. Destino, Zachary R. Jones, Caitlyn M. Gatley, Yi Zhang, Andrew K. Craft, Michael R. Detty, Frank V. Bright

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Surface patterns over multiple length scales are known to influence various biological processes. Here we report the synthesis and characterization of new, two-component xerogel thin films derived from carboxyethylsilanetriol (COE) and tetraethoxysilane (TEOS). Atomic force microscopy (AFM) reveals films surface with branched and hyper branched architectures that are ∼2 to 30 μm in diameter, that extend ∼3 to 1300 nm above the film base plane with surface densities that range from 2 to 77% surface area coverage. Colocalized AFM and Raman spectroscopy show that these branched structures are COE-rich domains, which are slightly stiffer (as shown from phase AFM imaging) and exhibit lower capacitive force in comparison with film base plane. Raman mapping reveals there are also discrete domains (≤300 nm in diameter) that are rich in COE dimers and densified TEOS, which do not appear to correspond with any surface structure seen by AFM.

Original languageEnglish (US)
Pages (from-to)10113-10119
Number of pages7
JournalLangmuir
Volume32
Issue number39
DOIs
StatePublished - Oct 4 2016
Externally publishedYes

Fingerprint

Surface topography
Sol-gels
Atomic force microscopy
topography
gels
atomic force microscopy
Xerogels
Polymers
Surface structure
xerogels
Dimers
Raman spectroscopy
Imaging techniques
Thin films
dimers
synthesis
thin films
tetraethoxysilane

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Destino, J. F., Jones, Z. R., Gatley, C. M., Zhang, Y., Craft, A. K., Detty, M. R., & Bright, F. V. (2016). Hybrid Sol-Gel-Derived Films That Spontaneously Form Complex Surface Topographies. Langmuir, 32(39), 10113-10119. https://doi.org/10.1021/acs.langmuir.6b02664

Hybrid Sol-Gel-Derived Films That Spontaneously Form Complex Surface Topographies. / Destino, Joel F.; Jones, Zachary R.; Gatley, Caitlyn M.; Zhang, Yi; Craft, Andrew K.; Detty, Michael R.; Bright, Frank V.

In: Langmuir, Vol. 32, No. 39, 04.10.2016, p. 10113-10119.

Research output: Contribution to journalArticle

Destino, JF, Jones, ZR, Gatley, CM, Zhang, Y, Craft, AK, Detty, MR & Bright, FV 2016, 'Hybrid Sol-Gel-Derived Films That Spontaneously Form Complex Surface Topographies', Langmuir, vol. 32, no. 39, pp. 10113-10119. https://doi.org/10.1021/acs.langmuir.6b02664
Destino, Joel F. ; Jones, Zachary R. ; Gatley, Caitlyn M. ; Zhang, Yi ; Craft, Andrew K. ; Detty, Michael R. ; Bright, Frank V. / Hybrid Sol-Gel-Derived Films That Spontaneously Form Complex Surface Topographies. In: Langmuir. 2016 ; Vol. 32, No. 39. pp. 10113-10119.
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