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Dive into the research topics where Ellen Schmidt Baker is active.

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Featured researches published by Ellen Schmidt Baker.


Langmuir | 2013

Self-assembly of palmitoyl lipopeptides used in skin care products.

Valeria Castelletto; Ian W. Hamley; Conor David Whitehouse; Paul J. Matts; Rosemarie Osborne; Ellen Schmidt Baker

The self-assembly of three cosmetically active peptide amphiphiles C16-GHK, C16-KT, and C16-KTTKS (C16 denotes a hexadecyl, palmitoyl chain) used in commercial skin care products is examined. A range of spectroscopic, microscopic, and X-ray scattering methods is used to probe the secondary structure, aggregate morphology, and the nanostructure. Peptide amphiphile (PA) C16-KTTKS forms flat tapes and extended fibrillar structures with high β-sheet content. In contrast, C16-KT and C16-GHK exhibit crystal-like aggregates with, in the case of the latter PA, lower β-sheet content. All three PA samples show spacings from bilayer structures in small-angle X-ray scattering profiles, and all three have similar critical aggregation concentrations, this being governed by the lipid chain length. However, only C16-KTTKS is stained by Congo red, a diagnostic dye used to detect amyloid formation, and this PA also shows a highly aligned cross-β X-ray diffraction pattern consistent with the high β-sheet content in the self-assembled aggregates. These findings may provide important insights relevant to the role of self-assembled aggregates on the reported collagen-stimulating properties of these PAs.


Archive | 2006

Laundry System Having Unitized Dosing

Debra Sue Caswell; Robert Gary Welch; Mark William Ridyard; Edward Sayers; David William York; Daniel James Dufton; Simon Howe; Johan Eshuis; Angelina Pena-Romero; Christophe Laudamiel-Pellet; Wundriari Hoffmann; George Endel Deckner; Errol Hoffman Wahl; Ruth Anne Murphy; Toan Trinh; Jiten Odhavji Dihora; Ellen Schmidt Baker; Janet Sue Littig; Timothy James Schroeder; Steven Louis Diersing; Malcolm Mcclaren Dodd; Lois Sara Gallon; Charles Albert Hensley


Archive | 1995

Concentrated biodegradable quaternary ammonium fabric softener compositions and compounds containing intermediate iodine value unsaturated fatty acid chains

Errol Hoffman Wahl; Dennis Ray Bacon; Ellen Schmidt Baker; Jean-Francois Bodet; Michael Eugene Burns; Hugo Jean Marie Demeyere; Charles Albert Hensley; Robert Mermelstein; John Cort Severns; John Henry Shaw; Michael Peter Siklosi; Alice Marie Vogel; Jeffrey Wayne Watson


Archive | 1987

Ion-pair complex conditioning agent and compositions containing same

Mark Hsiang K. Mao; Robert Mermelstein; Debra Sue Caswell; Ellen Schmidt Baker


Archive | 1993

Concentrated fabric softener compositions containing biodegradable fabric softeners

Ellen Schmidt Baker; Jean-Francois Bodet; Hugo Jean Marie Demeyere; Frederick Anthony Hartman; Bruno Albert Jean Hubesch; Robert Mermelstein; Lucille Florence Taylor; Errol Hoffman Wahl


The Journal of Physical Chemistry | 1985

Transport and relaxation properties of dimethyl sulfoxide-water mixtures at high pressure

Ellen Schmidt Baker; J. Jonas


Archive | 2003

Perfume polymeric particles

Glenn Thomas Jordan; Bernard William Kluesener; Mark Robert Sivik; Vicente Santamarina; Robert Richard Dykstra; Nathalia Lebedev; Lois Sara Gallon; Ellen Schmidt Baker; Patrick Amrhein; Dieter Boeckh; Stefan Frenzel; Ekkehard Jahns; Volker Schwendemann


The Journal of Physical Chemistry | 1984

Self-diffusion in compressed supercritical ethylene

Ellen Schmidt Baker; D. R. Brown; J. Jonas


Archive | 2004

Conditioning composition comprising aminosilicone

Ellen Schmidt Baker; Nobuaki Uehara; Robert Lee Wells; Kendrick Jon Hughes


Archive | 1996

Chelating agents for improved color fidelity

John Robert Rusche; Ellen Schmidt Baker; Axel Masschelein

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