publication . Article . 2016

Enzymatically activated emulsions stabilised by interfacial nanofibre networks

Moreira, Inês P.; Ramos Sasselli, Ivan; Cannon, Daniel A.; Hughes, Meghan; Lamprou, Dimitrios A.; Tuttle, Tell; Ulijn, Rein V.;
Open Access
  • Published: 07 Mar 2016 Journal: Soft Matter, volume 12, pages 2,623-2,631 (issn: 1744-683X, eissn: 1744-6848, Copyright policy)
  • Publisher: Royal Society of Chemistry (RSC)
  • Country: United Kingdom
Abstract
We report on-demand formation of emulsions stabilised by interfacial nanoscale networks. These are formed through biocatalytic dephosphorylation and self-assembly of Fmoc(9-fluorenylmethoxycarbonyl)-dipeptide amphiphiles in aqueous/organic mixtures. This is achieved by using alkaline phosphatase which transforms surfactant-like phosphorylated precursors into self-assembling aromatic peptide amphiphiles (Fmoc-tyrosine-leucine, Fmoc-YL) that form nanofibrous networks. In biphasic organic/aqueous systems, these networks form preferentially at the interface thus providing a means of emulsion stabilisation. We demonstrate on-demand emulsification by enzyme addition, ...
Subjects
free text keywords: General Chemistry, Condensed Matter Physics, Fluorescence microscope, Nanofiber, Emulsion, Organic chemistry, Molecular dynamics, Amphiphile, Dipeptide, chemistry.chemical_compound, chemistry, Fourier transform infrared spectroscopy, Aqueous solution, R, QD
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