Stability of monomolecular films of archaebacterial tetraether lipids on silicon wafers: A comparison of physisorbed and chemisorbed monolayers

Vidawati, Sri; Sitterberg, Johannes; Rothe, Ulrich; Bakowsky, Udo

doi:10.1016/j.colsurfb.2011.05.005

Cited by 12 publications

(13 citation statements)

References 31 publications

(38 reference statements)

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“…Compression-decompression hysteresis cycles performed, and resulting compression-decompression curves showing the thermodynamic stability of the tetraether lipids GDNT monolayers [10].…”

Section: Resultsmentioning

confidence: 99%

“…Compression-decompression cycles performed hysteresis and compression-decompression so that the curves show thermodynamic stability of the Langmuir monolayer films of GDNT. Hysteresis curves were observed for the stable films [9,10]. Figure 2(a) shows the Langmuir films of 30 µl of 1 mmol/l of the asymmetric GDNT tetraether lipids 1 hour after spreading at the air-water interface.…”

Section: S Vidawati Et Al / Advances In Biological Chemistrymentioning

confidence: 96%

“…Floating monolayer stability is an important parameter in obtaining very high-quality Langmuir-Blodgett films. Although, efforts were made to obtain high-quality Langmuir-Blodget films of tetraether lipids [7,[9][10][11][13][14][15][16]. Langmuir-Blodget of tetraether lipid films depends on many parameters such as substrate surface properties (hydrophobic, hydrophilic, aminosilanised) [10], temperature, sub-phase, etc.…”

Section: S Vidawati Et Al / Advances In Biological Chemistrymentioning

confidence: 99%

“…At this point the molecules lie flat on the subphase forming float-like domains which later after compressing begin to elevate and adopt a horseshoe conformation which at the end flip up into an upright conformation [9]. Stability of tetraether lipids monolayer films on solid substrates also depends on the properties of the substrates surface [10].…”

Section: Introductionmentioning

confidence: 99%

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Langmuir films stability phenomenon of glycerol dialkyl nonitol tetraether at the air-water interface for variations spreading time

Vidawati

Bakowsky²,

Rothe³

2012

ABC

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Langmuir films behavior of asymmetric glycerol dialkyl nonitol tetraether (GDNT) lipids at the air-water interface (temperature 19˚C ± 1˚C) investigated the stability of the mean ratio of Langmuir films for different spreading time prior to the transfer film. Floating monolayer films stability is an important parameter to obtain high-quality Langmuir-Blodgett films for their aplications. Hysteresis loop of the compression-decompression (μ-A) isotherms of Langmuir film GDNT used to analyze the thermodynamic stability of the monolayer films and its features. Langmuir films stability of tetraether lipid GDNT shown more stable at the time of spreading longer than a short time.

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“…Compression-decompression hysteresis cycles performed, and resulting compression-decompression curves showing the thermodynamic stability of the tetraether lipids GDNT monolayers [10].…”

Section: Resultsmentioning

confidence: 99%

Section: S Vidawati Et Al / Advances In Biological Chemistrymentioning

confidence: 96%

Section: S Vidawati Et Al / Advances In Biological Chemistrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Langmuir films stability phenomenon of glycerol dialkyl nonitol tetraether at the air-water interface for variations spreading time

Vidawati

Bakowsky²,

Rothe³

2012

ABC

Self Cite

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“…The stability of the TEL coatings is expected to exceed the stability of surface supported TEL layers prepared by other approaches such as LB films 27,35 and S-layer supported TEL films (recently reviewed in Ref. 36).…”

Section: Monolayer Formation and Thicknessmentioning

confidence: 99%

Biomimetic surface modification with bolaamphiphilic archaeal tetraether lipids via liposome spreading

et al. 2014

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Through investigations of the self-assembly behavior of three different tetraether lipids, the authors successfully established a solid supported, biomimetic tetraether lipid membrane via liposome spreading. These bolaamphiphilic lipids are the main compound in membranes of archaea, extremophile microorganisms, which underwent an enormous adaptation to extreme conditions in their natural environment with regard to temperature, pH, and high salt concentrations. Starting from a mathematical point of view, the authors calculated hydrophilic–lipophilic balance values for each lipid and recognized a wide difference in self-assembly potentials relying on size and hydrophilic properties of the lipid head groups. These results were in good accordance with data generated by lipid experiments at the air–water interface applying a Langmuir–Blodgett film balance so that the self-assembly potential of two different tetraether lipids was found to be sufficient to form stable liposomes in aqueous media. Liposomes composed of the main phospholipid of the archaea strain Sulfolobus acidocaldarius fused covalently on silanized glass substrates and formed a monomolecular lipid layer with upright standing molecules at film consistent thicknesses of approximately 5 nm determined by ellipsometry and atomic force microscopy. This work can be considered as a basic strategy to find optimized lipid properties in terms of liposome formation and spreading in water, and it is the first report about archaeal liposome fusing on surfaces to establish a solid supported lipid monolayer.

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Modification of bipolar lipid conformation at the air/water interface by a single stereochemical variation

Terme

Jacquemet

Benvegnu

et al. 2014

Chemistry and Physics of Lipids

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Stability of monomolecular films of archaebacterial tetraether lipids on silicon wafers: A comparison of physisorbed and chemisorbed monolayers

Cited by 12 publications

References 31 publications

Langmuir films stability phenomenon of glycerol dialkyl nonitol tetraether at the air-water interface for variations spreading time

Langmuir films stability phenomenon of glycerol dialkyl nonitol tetraether at the air-water interface for variations spreading time

Biomimetic surface modification with bolaamphiphilic archaeal tetraether lipids via liposome spreading

Modification of bipolar lipid conformation at the air/water interface by a single stereochemical variation

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