1
|
Kitt JP, Harris JM. Confocal Raman Microscopy of Hybrid-Supported Phospholipid Bilayers within Individual C18-Functionalized Chromatographic Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9033-9044. [PMID: 27493032 DOI: 10.1021/acs.langmuir.6b02309] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Measuring lipid-membrane partitioning of small molecules is critical to predicting bioavailability and investigating molecule-membrane interactions. A stable model membrane for such studies has been developed through assembly of a phospholipid monolayer on n-alkane-modified surfaces. These hybrid bilayers have recently been generated within n-alkyl-chain (C18)-modified porous silica and used in chromatographic retention studies of small molecules. Despite their successful application, determining the structure of hybrid bilayers within chromatographic silica is challenging because they reside at buried interfaces within the porous structure. In this work, we employ confocal Raman microscopy to investigate the formation and temperature-dependent structure of hybrid-phospholipid bilayers in C18-modified, porous-silica chromatographic particles. Porous silica provides sufficient surface area within a confocal probe volume centered in an individual particle to readily measure, with Raman microscopy, the formation of an ordered hybrid bilayer of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) with the surface C18 chains. The DMPC surface density was quantified from the relative Raman scattering intensities of C18 and phospholipid acyl chains and found to be ∼40% of a DMPC vesicle membrane. By monitoring Raman spectra acquired versus temperature, the bilayer main phase transition was observed to be broadened and shifted to higher temperature compared to a DMPC vesicle, in agreement with differential scanning calorimetry (DSC) results. Raman scattering of deuterated phospholipid was resolved from protonated C18 chain scattering, showing that the lipid acyl and C18 chains melt simultaneously in a single phase transition. The surface density of lipid in the hybrid bilayer, the ordering of both C18 and lipid acyl chains upon bilayer formation, and decoupling of C18 methylene C-H vibrations by deuterated lipid acyl chains all suggest an interdigitated acyl chain structure. The simultaneous melting of both layers is also consistent with an interdigitated structure, where immobility of surface-grafted C18 chains decreases the cooperativity and increases the melting temperature compared to a vesicle bilayer.
Collapse
Affiliation(s)
- Jay P Kitt
- Department of Chemistry, University of Utah , 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Joel M Harris
- Department of Chemistry, University of Utah , 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| |
Collapse
|
2
|
Vojta D, Horvat T, Miljanić S, Vazdar M. Unraveling the weak hydrogen bonds of ethynylpyridines and ethynylbenzene with trimethylphosphate — A combined FT-Raman spectroscopic and quantum-chemical study. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
3
|
Banno M, Ohta K, Tominaga K. Vibrational dynamics of acetate in D2O studied by infrared pump-probe spectroscopy. Phys Chem Chem Phys 2012; 14:6359-66. [PMID: 22358129 DOI: 10.1039/c2cp23647h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solute-solvent interactions between acetate and D(2)O were investigated by vibrational spectroscopic methods. The vibrational dynamics of the COO asymmetric stretching mode in D(2)O was observed by time-resolved infrared (IR) pump-probe spectroscopy. The pump-probe signal contained both decay and oscillatory components. The time dependence of the decay component could be explained by a double exponential function with time constants of 200 fs and 2.6 ps, which are the same for both the COO asymmetric and symmetric stretching modes. The Fourier spectrum of the oscillatory component contained a band around 80 cm(-1), which suggests that the COO asymmetric stretching mode couples to a low-frequency vibrational mode with a wavenumber of 80 cm(-1). Based on quantum chemistry calculations, we propose that a bridged complex comprising an acetate ion and one D(2)O molecule, in which the two oxygen atoms in the acetate anion form hydrogen bonds with the two deuterium atoms in D(2)O, is the most stable structure. The 80 cm(-1) low-frequency mode was assigned to the asymmetric stretching vibration of the hydrogen bond in the bridged complex.
Collapse
Affiliation(s)
- Motohiro Banno
- Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan
| | | | | |
Collapse
|
4
|
|
5
|
Vibrational and rotational relaxation of hexafluorobenzene studied by Raman scattering in the supercritical domain. J Mol Liq 2006. [DOI: 10.1016/j.molliq.2005.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
6
|
The structure and dynamics of crystalline durene by neutron scattering and numerical modelling using density functional methods. Chem Phys 2000. [DOI: 10.1016/s0301-0104(00)00229-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
7
|
Kirkwood JC, Ulness DJ, Albrecht AC. Electronically nonresonant coherent Raman scattering using incoherent light: Two Brownian oscillator approaches. J Chem Phys 1998. [DOI: 10.1063/1.476393] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
8
|
Bout DV, Freitas JE, Berg M. Rapid, homogeneous vibrational dephasing in ethanol at low temperatures determined by Raman echo measurements. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)01013-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
9
|
Picosecond structural relaxation of S1 trans-stilbene in solution as revealed by time-resolved Raman spectroscopy. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85721-l] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
10
|
Besnard M, Del Campo N, Yarwood J. Molecular relaxation processes in liquid mixtures containing iodine complexes. J Mol Liq 1991. [DOI: 10.1016/0167-7322(91)80008-r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Vibrational relaxation and frequencies of liquid molecules. I. Theoretical expressions for practical calculation. Chem Phys 1989. [DOI: 10.1016/0301-0104(89)80106-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
12
|
|
13
|
Perrin B. Singular behavior of phonon-phonon interactions in molecular crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 36:4706-4714. [PMID: 9943483 DOI: 10.1103/physrevb.36.4706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
14
|
Richter W, Schiel D, Wöger W. Line merging in the OH and SH stretching vibrational Raman profiles of ethanol and ethanethiol in the liquid state due to conformational dynamics. Mol Phys 1987. [DOI: 10.1080/00268978700100471] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
15
|
Stryczek B, Bródka A. Raman band shapes of a three-level vibrational system for a bath represented by a two-state stochastic process. Mol Phys 1986. [DOI: 10.1080/00268978600102221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
16
|
Allavena M, Seiti K. Indirect dephasing model and librovibrational spectra of diatomics trapped in rare gas matrices. Application to the case of CO/Ar. J Chem Phys 1986. [DOI: 10.1063/1.451782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
17
|
|
18
|
MacPhail RA, Strauss HL. Can the Bloch equations describe the vibrational spectra of a reacting molecule? J Chem Phys 1985. [DOI: 10.1063/1.448964] [Citation(s) in RCA: 71] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
A study of interference contributions to vibrational population relaxation in fluids by impulsive mechanisms. Chem Phys 1984. [DOI: 10.1016/0301-0104(84)80043-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
20
|
Schosser CL, Dlott DD. A picosecond CARS study of vibron dynamics in molecular crystals: Temperature dependence of homogeneous and inhomogeneous linewidths. J Chem Phys 1984. [DOI: 10.1063/1.446889] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
21
|
|
22
|
Watanesk R, Wilson RS. New approach to single-particle time-correlation function theory: Application to intramolecular dephasing in the condensed phase. Chem Phys 1984. [DOI: 10.1016/0301-0104(84)80028-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
23
|
Duppen K, Weitekamp DP, Wiersma DA. Vibrational dephasing in molecular mixed crystals: A picosecond time domain CARS study of pentacene in naphthalene and benzoic acid. J Chem Phys 1983. [DOI: 10.1063/1.445753] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
24
|
Hiroike E. Indirect dephasing model with many hot modes for a vibrating molecule in a dense medium. Chem Phys Lett 1983. [DOI: 10.1016/0009-2614(83)87071-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
25
|
Corn RM, Strauss HL. Ammonium ion rotation in ammonium perchlorate as studied by infrared spectroscopy. J Chem Phys 1983. [DOI: 10.1063/1.446160] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
26
|
Jones LH, Swanson BI. Orientational ordering, site structure, and dynamics for octahedral molecules in low temperature matrices: SF6 and SeF6 in rare gas solids. J Chem Phys 1983. [DOI: 10.1063/1.445943] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
27
|
Wong PT, Mantsch HH. A low-temperature structural phase transition of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine bilayers in the gel phase. BIOCHIMICA ET BIOPHYSICA ACTA 1983; 732:92-8. [PMID: 6688187 DOI: 10.1016/0005-2736(83)90190-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new thermotropic phase transition, at -30 degrees C and atmospheric pressure, was found to occur in the gel phase of aqueous DPPC dispersions. The Raman spectral changes at this phase transition are similar to those observed in the gel phase of DMPC dispersions at -60 degrees C. The thermotropic phase transition at -30 degrees C is equivalent to the barotropic GII to GIII phase transition observed in DPPC at 1.7 kbar and 30 degrees C. It is shown that the rate of the large angle interchain reorientational fluctuations decreases gradually with decreasing temperature, and that the orientationally disordered acyl chain structure of the GII phase is extended into the GIII phase of DPPC. The interchain interaction, arising from the damping of the reorientational fluctuations, increases with decreasing temperature in the GII gel phase as well as in the GIII gel phase.
Collapse
|
28
|
Wong PTT, Mantsch HH. Pressure effects on the Raman spectra of micelles: Pressure induced phase transition and structural changes in aqueous sodium oleatea). J Chem Phys 1983. [DOI: 10.1063/1.444727] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
29
|
Hess LA, Prasad PN. Resonance energy transfer, motional narrowing, and vibrational dephasing in molecular crystals: 390 cm−1 internal vibration of naphthalene. J Chem Phys 1983. [DOI: 10.1063/1.444818] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
30
|
Dorsinville R, Franklin W, Ockman N, Alfano R. Effect of hydrogen bonding on the vibrational dephasing time in glycerol. Chem Phys Lett 1982. [DOI: 10.1016/0009-2614(82)83421-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
31
|
Dubost H, Charneau R, Harig M. High-resolution diode laser spectroscopy of CO in solid N2: Effect of dipolar broadening on vibrational transitions. Chem Phys 1982. [DOI: 10.1016/0301-0104(82)88078-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
Dlott DD, Schosser CL, Chronister EL. Temperature-dependent vibrational dephasing in molecular crystals: a picosecond cars study of naphthalene. Chem Phys Lett 1982. [DOI: 10.1016/0009-2614(82)83075-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
33
|
MacPhail RA, Snyder RG, Strauss HL. The motional collapse of the methyl C–H stretching vibration bands. J Chem Phys 1982. [DOI: 10.1063/1.443996] [Citation(s) in RCA: 107] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
34
|
Wong PTT, Murphy WF, Mantsch HH. Pressure effects on the Raman spectra of phospholipid membranes: Pressure induced phase transitions and structural changes in 1,2‐dimyristoyl 3‐sn‐phosphatidylcholine water dispersions. J Chem Phys 1982. [DOI: 10.1063/1.442918] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
35
|
Schweizer KS, Chandler D. Vibrational dephasing and frequency shifts of polyatomic molecules in solution. J Chem Phys 1982. [DOI: 10.1063/1.443302] [Citation(s) in RCA: 357] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
36
|
Wilde RE. Vibrational correlation‐function modeling in the context of the Zwanzig–Mori formalism. Application to liquid ethane. J Chem Phys 1981. [DOI: 10.1063/1.441675] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
Quantum stochastic theory of exchange dephasing model for a vibrating molecule in dense medium. Chem Phys Lett 1981. [DOI: 10.1016/0009-2614(81)80025-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
38
|
Marks S, Cornelius PA, Harris CB. A critical test of vibrational dephasing theories in solids using spontaneous Raman scattering in isotopically mixed crystals. J Chem Phys 1980. [DOI: 10.1063/1.440565] [Citation(s) in RCA: 83] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
39
|
Schindler W, Jonas J. Density and temperature effects on vibrational phase relaxation and frequency shifts in liquid isobutylene. J Chem Phys 1980. [DOI: 10.1063/1.439790] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
40
|
Kosloff R, Rice SA. Comments on a semigroup formalism for the description of phase and population relaxation processes. J Chem Phys 1980. [DOI: 10.1063/1.439701] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
41
|
Abbott RJ, Oxtoby DW. Non‐Markovian effects on vibrational energy relaxation in liquids. J Chem Phys 1980. [DOI: 10.1063/1.439675] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
42
|
Vibrational correlations in dense molecular systems. III. Exchange dephasing of high frequency bands for polyatomic molecules. Chem Phys 1980. [DOI: 10.1016/0301-0104(80)87010-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
43
|
Hess LA, Prasad PN. Vibrational dephasing in organic solids: Temperature dependence of a Raman active localized internal mode of naphthalene. J Chem Phys 1980. [DOI: 10.1063/1.438944] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
44
|
Diestler DJ, Zewail AH. Vibronic dephasing of anharmonic molecules. I. Theory and its application to the separability of intra- and intermolecular processes. J Chem Phys 1979. [DOI: 10.1063/1.438717] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|