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Title: Ordering in bio-inorganic hybrid nanomaterials probed by in situ scanning transmission X-ray microscopy

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/C5NR00622H· OSTI ID:1313546
 [1];  [1];  [1];  [2];  [3];  [1];  [1];  [3];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Here, phospholipid bilayer coated Si nanowires are one-dimensional (1D) composites that provide versatile bio-nanoelectronic functionality via incorporation of a wide variety of biomolecules into the phospholipid matrix. The physiochemical behaviour of the phospholipid bilayer is strongly dependent on its structure and, as a consequence, substantial modelling and experimental efforts have been directed at the structural characterization of supported bilayers and unsupported phospholipid vesicles; nonetheless, the experimental studies conducted to date have exclusively involved volume-averaged techniques, which do not allow for the assignment of spatially resolved structural variations that could critically impact the performance of the 1D phospholipid-Si NW composites. In this manuscript, we use scanning transmission X-ray microscopy (STXM) to probe bond orientation and bilayer thickness as a function of position with a spatial resolution of ~30 nm for Δ9-cis 1,2-dioleoyl-sn-glycero-3-phosphocholine layers prepared Si NWs. When coupled with small angle X-ray scattering measurements, the STXM data reveal structural motifs of the Si NWs that give rise to multi-bilayer formation and enable assignment of the orientation of specific bonds known to affect the order and rigidity of phospholipid bilayers.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1313546
Report Number(s):
LLNL-JRNL-663215; NANOHL
Journal Information:
Nanoscale, Vol. 7, Issue 21; ISSN 2040-3364
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

References (49)

Biofabrication: using biological materials and biocatalysts to construct nanostructured assemblies journal November 2004
Bionanoelectronics: Bionanoelectronics (Adv. Mater. 7/2011) journal February 2011
Multiplexed electrical detection of cancer markers with nanowire sensor arrays journal September 2005
Detection, Stimulation, and Inhibition of Neuronal Signals with High-Density Nanowire Transistor Arrays journal August 2006
Functional One-Dimensional Lipid Bilayers on Carbon Nanotube Templates journal May 2005
Formation, Stability, and Mobility of One-Dimensional Lipid Bilayers on Polysilicon Nanowires journal November 2007
Highly Efficient Biocompatible Single Silicon Nanowire Electrodes with Functional Biological Pore Channels journal March 2009
Bioelectronic silicon nanowire devices using functional membrane proteins journal August 2009
Comparison of NEXAFS microscopy and TEM-EELS for studies of soft matter journal April 2008
Scanning Transmission X-Ray, Laser Scanning, and Transmission Electron Microscopy Mapping of the Exopolymeric Matrix of Microbial Biofilms journal September 2003
Quantitative Mapping of the Orientation of Fibroin β-Sheets in B. m ori Cocoon Fibers by Scanning Transmission X-ray Microscopy journal March 2006
In situ azimuthal rotation device for linear dichroism measurements in scanning transmission x-ray microscopy journal March 2007
Nephila clavipes Spider Dragline Silk Microstructure Studied by Scanning Transmission X-ray Microscopy journal April 2007
NEXAFS Spectroscopy book January 1992
Determination of molecular orientations on surfaces from the angular dependence of near-edge x-ray-absorption fine-structure spectra journal November 1987
Molecular Dynamics Simulations of Bilayers Containing Mixtures of Sphingomyelin with Cholesterol and Phosphatidylcholine with Cholesterol journal November 2007
Combined influence of cholesterol and synthetic amphiphillic peptides upon bilayer thickness in model membranes journal May 1992
Update of the CHARMM All-Atom Additive Force Field for Lipids: Validation on Six Lipid Types journal June 2010
Cholesterol Orientation and Tilt Modulus in DMPC Bilayers journal June 2010
How Cholesterol Tilt Modulates the Mechanical Properties of Saturated and Unsaturated Lipid Membranes journal January 2013
An Extension and Further Validation of an All-Atomistic Force Field for Biological Membranes journal July 2012
Molecular origins of bending rigidity in lipids with isolated and conjugated double bonds: The effect of cholesterol journal February 2014
Molecular Dynamics Simulations of Phosphatidylcholine Membranes: A Comparative Force Field Study journal September 2012
Tilt:  Major Factor in Sterols' Ordering Capability in Membranes journal December 2006
Molecular Dynamics Investigation of Bond Ordering of Unsaturated Lipids in Monolayers journal June 1999
Molecular dynamics simulations of hydrated unsaturated lipid bilayers in the liquid-crystal phase and comparison to self-consistent field modeling journal January 2003
Effect of a single cis double bond on the structure of a phospholipid bilayer journal January 1977
Structure of Escherichia coli membranes. Phospholipid conformation in model membranes and cells as studied by deuterium magnetic resonance journal December 1979
Molecular order in cis and trans unsaturated phospholipid bilayers journal August 1978
Order parameters of unsaturated phospholipids in membranes and the effect of cholesterol: a 1H–13C solid-state NMR study at natural abundance journal June 2005
Lipid bilayer structure journal August 2000
Curvature Effect on the Structure of Phospholipid Bilayers journal January 2007
X-Ray Interactions: Photoabsorption, Scattering, Transmission, and Reflection at E = 50-30,000 eV, Z = 1-92 journal July 1993
Atomic form factors, incoherent scattering functions, and photon scattering cross sections journal July 1975
Erratum: Atomic Form Factors, Incoherent Scattering Functions, and Photon Scattering Cross Sections journal April 1977
Solid supported multicomponent lipid membranes studied by x-ray spectromicroscopy journal June 2008
Imaging interactions of cationic antimicrobial peptides with model lipid monolayers using X-ray spectromicroscopy journal March 2011
STXM and NanoSIMS Investigations on EPS Fractions before and after Adsorption to Goethite journal March 2013
Using Intrinsic X-ray Absorption Spectral Differences To Identify and Map Peptides and Proteins journal July 2007
Quantitative mapping of chlorhexidine in natural river biofilms journal October 2006
A simple method for determining linear polarization and energy calibration of focused soft X-ray beams journal February 2008
Structural Development of Mercaptophenol Self-Assembled Monolayers and the Overlying Mineral Phase during Templated CaCO 3 Crystallization from a Transient Amorphous Film journal August 2007
Determining orientational structure of diamondoid thiols attached to silver using near-edge X-ray absorption fine structure spectroscopy journal May 2009
Quantitative Evaluation of Radiation Damage to Polyethylene Terephthalate by Soft X-rays and High-energy Electrons journal February 2009
Radiation damage in soft X-ray microscopy journal March 2009
Adsorbed monolayers versus Langmuir-Blodgett monolayers—why and how? II: Characterization of built-up films constructed by stepwise adsorption of individual monolayers journal February 1983
X-ray Absorption Spectroscopy Characterization of Cu Underpotential Deposition on Au(111) and Organothiol-Self-Assembled-Monolayer-Modified Au(111) Electrodes from Sulfate Supporting Electrolyte journal June 2009
Underpotential deposition behavior of metals onto gold electrodes coated with self-assembled monolayers of alkanethiols journal September 1999
An integrated high-throughput data acquisition system for biological solution X-ray scattering studies journal March 2012