Gemini surfactant electrospun membranes

Matthew P. Cashion, Xiaolin Li, Yan Geng, Matthew T. Hunley, Timothy Edward Long

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Our research demonstrates electrospun nonwoven fibrous scaffolds from a low molar mass gemini ammonium surfactant, N,N'-didodecyl-N,N,N',N'-tetramethyl-N, N'-ethanediyldiammonium dibromide (12-2-12). Cryogenic transmission electron microscopy (cryo-TEM) and solution rheological experiments revealed micellar morphological transitions of 12-2-12 in water and watenmethanol (1:1 vol). The microstructure of 12-2-12 in water transitioned from entangled, cylindrical, threadlike micelles to branched threadlike micelles, and a viscoelastic, entangled, highly branched network of threadlike micelles with increasing concentration finally formed. In sharp contrast, the solution behavior of 12-2-12 in watenmethanol produced a drastically different micellar microstructure compared to that in water, and the morphology transitioned from partitioned, globular micelles to overlapped micelles at an overlap concentration (C*) of 11 wt %. Electrospinning 12-2-12 from water did not produce fibers at any concentration; however, electrospinning 122-12 in watenmethanol at concentrations greater than 2C* produced hydrophilic continuous fibers with diameters ranging from 0.9 to 7 μm. High surface area scaffolds with hydrophilic surfaces offer potential as charged controlledrelease membranes, tissue engineering scaffolds, and coatings for biologically compatible devices.

Original languageEnglish
Pages (from-to)678-683
Number of pages6
JournalLangmuir
Volume26
Issue number2
DOIs
Publication statusPublished - 2010 Jan 19
Externally publishedYes

Fingerprint

Micelles
Surface-Active Agents
micelles
Surface active agents
surfactants
membranes
Membranes
Water
Electrospinning
Scaffolds
water
Tissue Scaffolds
dibromides
microstructure
Microstructure
fibers
Fibers
Molar mass
tissue engineering
Surface potential

ASJC Scopus subject areas

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

Cite this

Cashion, M. P., Li, X., Geng, Y., Hunley, M. T., & Long, T. E. (2010). Gemini surfactant electrospun membranes. Langmuir, 26(2), 678-683. https://doi.org/10.1021/la902287b

Gemini surfactant electrospun membranes. / Cashion, Matthew P.; Li, Xiaolin; Geng, Yan; Hunley, Matthew T.; Long, Timothy Edward.

In: Langmuir, Vol. 26, No. 2, 19.01.2010, p. 678-683.

Research output: Contribution to journalArticle

Cashion, MP, Li, X, Geng, Y, Hunley, MT & Long, TE 2010, 'Gemini surfactant electrospun membranes', Langmuir, vol. 26, no. 2, pp. 678-683. https://doi.org/10.1021/la902287b
Cashion MP, Li X, Geng Y, Hunley MT, Long TE. Gemini surfactant electrospun membranes. Langmuir. 2010 Jan 19;26(2):678-683. https://doi.org/10.1021/la902287b
Cashion, Matthew P. ; Li, Xiaolin ; Geng, Yan ; Hunley, Matthew T. ; Long, Timothy Edward. / Gemini surfactant electrospun membranes. In: Langmuir. 2010 ; Vol. 26, No. 2. pp. 678-683.
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