Interactions at the lipid–water interface

Hübner, Wigand; Blume, Alfred

doi:10.1016/s0009-3084(98)00083-8

Cited by 205 publications

(217 citation statements)

References 82 publications

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“…Although, characterization of in situ soil bacteria is not possible, knowledge regarding the IR spectra of bacteria is very important for understanding processes of bacterial adhesion to mineral surfaces. A number of studies have used FTIR to characterize and study interactions of specific bacterial components including extracellular polymeric substances (EPS) (Badireddy et al, 2008;Beech et al, 1999;Eboigbodin and Biggs, 2008;Chorover, 2004, 2006;Wingender et al, 2001), lipopolysaccharides (LPS) (Brandenburg, 1993;Brandenburg et al, 2001Brandenburg et al, , 1997Brandenburg and Seydel, 1990;Kamnev et al, 1999;Chorover, 2007, 2008), phospholipids (Brandenburg et al, 1999;Brandenburg and Seydel, 1986;Cagnasso et al, 2010;Hübner and Blume, 1998), and DNA (Brewer et al, 2002;Falk et al, 1963;Mao et al, 1994;Pershina et al, 2009;Tsuboi, 1961;Zhou and Li, 2004). In addition, ATR-FTIR has emerged as a powerful tool for studying biofilm formation, composition, and structure (Beech et al, 2000;Cheung et al, 2000;Schmitt and Flemming, 1999;Spath et al, 1998).…”

Section: Bacteria and Biomoleculesmentioning

confidence: 99%

Soil Chemical Insights Provided through Vibrational Spectroscopy

Parikh

Goyne

Margenot

et al. 2014

Advances in Agronomy

202

163

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Section: Bacteria and Biomoleculesmentioning

confidence: 99%

Soil Chemical Insights Provided through Vibrational Spectroscopy

Parikh

Goyne

Margenot

et al. 2014

Advances in Agronomy

202

163

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“…Thus, water plays a key role in the structural organization of proteins and small peptides. [10][11][12][13][14][15] The lipid bilayer defects could be ascribed to local changes in the packing of the polar head group, because of the difference in hydration of lipids in the gel and in the liquid crystalline state. [16] In this regard, it is important to bear in mind that the changes of water organization at the lipid interphase could affect activity of some proteins.…”

Section: Introductionmentioning

confidence: 99%

FTIR and Raman analysis ofl-cysteine ethyl ester HCl interaction with dipalmitoylphosphatidylcholine in anhydrous and hydrated states

Arias

Tuttolomondo

Díaz

et al. 2015

J. Raman Spectrosc.

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Interactions of L-cysteine ethyl ester hydrochloride (CE), a bioactive cysteine derivative, with dipalmitoylphosphatidylcholine (DPPC) were investigated. To gain a deeper insight into analyzing L-cysteine ethyl ester HCl interaction with liposomes of DPPC in anhydrous and hydrated states, we performed experimental studies by infrared (Fourier transform infrared spectroscopy) and Raman spectroscopies. The results revealed that the interaction of CE with the phospholipid head groups was the same in absence or presence of water. In both states, the wavenumber of the PO 2 À group and C-N bond of the choline group decreased. This behavior can be ascribed to the replacement of hydration water and binding to the phosphate group. In the Raman spectrum results for the anhydrous and gel states, the S-H stretching band of the CE shifted to lower frequencies with a decrease in its force constant. Biologically active lipophilic molecules such as CE should be studied in terms of their interaction with lipid bilayers prior to the development of advanced lipid carrier systems such as liposomes. The results of these studies provide information on membrane integrity and physicochemical properties that are essential for the rational design of lipidic drug delivery systems.

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“…Additionally, the polarized dipoles of hydration water, which can be ordered and oriented perpendicular to the bilayer plane (7,10,13), may also contribute to ⌿ d generation. The presence of these highly polarized and hydrogen-bonded water molecules on the level of phosphate and even ester groups has been inferred by different methods (14,15), but the connection between the dipole potential and bilayer hydration is still unclear.…”

mentioning

confidence: 99%

Ultrasensitive two-color fluorescence probes for dipole potential in phospholipid membranes

Klymchenko

Duportail

Mély

et al. 2003

Proc. Natl. Acad. Sci. U.S.A.

138

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The principle of electrochromic modulation of excited-state intramolecular proton-transfer reaction was applied for the design of fluorescence probes with high two-color sensitivity to dipole potential, ⌿ d, in phospholipid bilayers. We report on the effect of ⌿ d variation on excitation and fluorescence spectra of two new 3-hydroxyflavone probes, which possess opposite orientations of the fluorescent moiety in the lipid bilayer. The dipole potential in the bilayer was modulated by the addition of 6-ketocholestanol or phloretin and by substitution of dimyristoyl phosphatidylcholine lipid with its ether analog 1,2-di-o-tetradecylsn-glycero-3-phosphocholine, and its value was estimated by the reference styryl dye 1-(3-sulfonatopropyl)-4-{␤[2-(di-noctylamino)-6-naphthyl]vinyl}pyridinium betaine. We demonstrate that after ⌿ d changes, the probe orienting in the bilayer similarly to the reference dye shows similar shifts in the excitation spectra, whereas the probe with the opposite orientation shows the opposite shifts. The new observation is that the response of 3-hydroxyflavone probes to ⌿ d in excitation spectra is accompanied by and quantitatively correlated with dramatic changes of relative intensities of the two well separated emission bands that belong to the initial normal and the product tautomer forms of the excited-state intramolecular proton-transfer reaction. This provides a strong response to ⌿ d by change in emission color.3-hydroxyflavone dyes ͉ two-color ratiometric probes

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Interactions at the lipid–water interface

Cited by 205 publications

References 82 publications

Soil Chemical Insights Provided through Vibrational Spectroscopy

Soil Chemical Insights Provided through Vibrational Spectroscopy

FTIR and Raman analysis ofl-cysteine ethyl ester HCl interaction with dipalmitoylphosphatidylcholine in anhydrous and hydrated states

Ultrasensitive two-color fluorescence probes for dipole potential in phospholipid membranes

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