@misc{garidel_structural_polymorphism_2008, 
author={Garidel, P.,Howe, J.,Milkereit, G.,Roessle, M.,Linser, S.,Gerber, S.,Willumeit, R.,Gutsmann, T.,Vill, V.,Brandenburg, K.},
title={Structural polymorphism of hydrated ether-linked dimyristyl maltoside and melibioside},
year={2008},
howpublished = {journal article},
doi = {https://doi.org/10.1016/j.chemphyslip.2007.09.004},
abstract = {The structural polymorphism of two selected disaccharide glycolipids with a maltose (DMMA) and a melibiose (DMME) carbohydrate headgroup linked to dimyristyl alkyl chains were investigated by FTIR-spectroscopy, differential scanning calorimetry (DSC), small-angle X-ray scattering (SAXS) and film-balance measurements. The compounds displayed thermotropic multilamellar phases. In the gel phase, DMMA formed also a crystalline phase of orthorhombic symmetry, and DMME an interdigitated phase. The gel to liquid crystalline phase transition temperature Tc of DMMA depended on the storage and hydration conditions, a precooled sample having a Tc around 45 °C, and a freshly prepared sample around 33 °C. In contrast, the phase transition temperature for the gel to liquid crystalline phase of DMME was always found at 24 °C. Surface pressure isotherms of the lipids on water and buffer showed that DMMA covers only a small surface area (not, vert, similar35 Å2) whereas DMME requires 50 Å2 of space on the surface. Films of DMMA can be compressed up to a maximum compressibility Πmax of 54 mN m−1 whereas the tilted DMME forms less stable films with Πmax of 34 mN m−1. These different structural characteristics reflect the different conformations of the disaccharide head groups. The presence of the α1 → 4 linked maltose head group in DMMA and an α1 → 6 linked melibiose head group in DMME induces geometrical structures ranging from a slightly wedge-shaped towards a more tilted structure, and as a consequence of Israelachvilis packing model, to the formation of different phases. In addition, the structural constraints of DMME allow the formation of a phase with interdigitated hydrocarbon chains.},
note = {Online available at: \url{https://doi.org/10.1016/j.chemphyslip.2007.09.004} (DOI). Garidel, P.; Howe, J.; Milkereit, G.; Roessle, M.; Linser, S.; Gerber, S.; Willumeit, R.; Gutsmann, T.; Vill, V.; Brandenburg, K.: Structural polymorphism of hydrated ether-linked dimyristyl maltoside and melibioside. Chemistry and Physics of Lipids. 2008. vol. 151, no. 1, 18-29. DOI: 10.1016/j.chemphyslip.2007.09.004}}