Thermal Transformations of Self-Assembled Gold Glyconanoparticles Probed by Combined Nanocalorimetry and X-ray Nanobeam Scattering

Langmuir ◽  
2014 ◽  
Vol 31 (1) ◽  
pp. 529-534 ◽  
Author(s):  
Christian Riekel ◽  
Emanuela Di Cola ◽  
Michael Reynolds ◽  
Manfred Burghammer ◽  
Martin Rosenthal ◽  
...  
Keyword(s):  
Thermal Transformations ◽  
X Ray ◽  
Gold Glyconanoparticles ◽  
Self Assembled

Interaction of nitric oxide with Ru(II) complexes of deuteroporphyrindimethylester derivatives

2009 ◽  
Vol 13 (01) ◽  
pp. 35-40 ◽  
Author(s):  
Rudy Martin ◽  
Roberto Cao ◽  
Ana M. Esteva ◽  
Franz-Peter Montforts
Keyword(s):  
Nitric Oxide ◽  
Photoelectron Spectroscopy ◽  
Gold Electrode ◽  
Charge Transfer Band ◽  
Bathochromic Shift ◽  
Considerable Change ◽  
Cathodic Peak ◽  
X Ray ◽  
Polycrystalline Gold ◽  
Self Assembled

A new ruthenium(II) porphyrin disulphide derivative, [ Ru ( Pds )( CO )], was obtained from ruthenium(II)(carbonyl)deuteroporphyrin(IX), [ Ru ( DPdc )( CO )] and cystamine. The interaction of this complex with nitric oxide was studied spectrophotometrically and a bathochromic shift of the charge transfer band and considerable change in the α and β bands of the complex were observed. According to the IR spectrum, the product of this interaction is [ Ru ( DmDP )( NO +)( NO 2-)]. [ Ru ( Pds )( CO )] was then self-assembled on polycrystalline gold and characterized by X-ray photoelectron spectroscopy. [ Ru ( Pds )( CO )] was also self-assembled on gold electrode beads and its interaction with nitric oxide in aqueous solution was studied by cyclic voltammetry. A shift in the ruthenium redox process and a new irreversible cathodic peak at -0.59 V were observed, both indicating coordination of NO .

scholarly journals Structural characterization of self-assembled quantum dot structures by X-ray diffraction techniques

1997 ◽  
Vol 306 (2) ◽  
pp. 198-204 ◽  
Author(s):  
A.A. Darhuber ◽  
J. Stangl ◽  
V. Holy ◽  
G. Bauer ◽  
A. Krost ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Structural Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Self Assembled

scholarly journals Neutron and X-ray scattering for biophysics and biotechnology: examples of self-assembled lipid systems

Soft Matter ◽  
2009 ◽  
Vol 5 (14) ◽  
pp. 2694 ◽  
Author(s):  
Thad A. Harroun ◽  
Norbert Kučerka ◽  
Mu-Ping Nieh ◽  
John Katsaras
Keyword(s):  
X Ray ◽  
X Ray Scattering ◽  
Self Assembled ◽  
Ray Scattering

scholarly journals X-ray spectroscopy characterization of self-assembled monolayers of nitrile-substituted oligo(phenylene ethynylene)s with variable chain length

2012 ◽  
Vol 3 ◽  
pp. 12-24 ◽  
Author(s):  
Hicham Hamoudi ◽  
Ping Kao ◽  
Alexei Nefedov ◽  
David L Allara ◽  
Michael Zharnikov
Keyword(s):  
Chain Length ◽  
Photoelectron Spectroscopy ◽  
Self Assembled Monolayers ◽  
Phenylene Ethynylene ◽  
X Ray ◽  
Molecular Length ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Gold Thiolate

Self-assembled monolayers (SAMs) of nitrile-substituted oligo(phenylene ethynylene) thiols (NC-OPEn) with a variable chain length n (n ranging from one to three structural units) on Au(111) were studied by synchrotron-based high-resolution X-ray photoelectron spectroscopy and near-edge absorption fine-structure spectroscopy. The experimental data suggest that the NC-OPEn molecules form well-defined SAMs on Au(111), with all the molecules bound to the substrate through the gold–thiolate anchor and the nitrile tail groups located at the SAM–ambient interface. The packing density in these SAMs was found to be close to that of alkanethiolate monolayers on Au(111), independent of the chain length. Similar behavior was found for the molecular inclination, with an average tilt angle of ~33–36° for all the target systems. In contrast, the average twist of the OPEn backbone (planar conformation) was found to depend on the molecular length, being close to 45° for the films comprising the short OPE chains and ~53.5° for the long chains. Analysis of the data suggests that the attachment of the nitrile moiety, which served as a spectroscopic marker group, to the OPEn backbone did not significantly affect the molecular orientation in the SAMs.

Exploring the 3D Structure and Defects of a Self-Assembled Gold Mesocrystal by Coherent X-ray Diffraction Imaging

Nanoscale ◽  
2021 ◽  
Author(s):  
Jerome Carnis ◽  
Felizitas Kirner ◽  
Dmitry Lapkin ◽  
Sebastian Sturm ◽  
Young Yong Kim ◽  
...  
Keyword(s):  
Nanostructured Materials ◽  
Crystallographic Orientation ◽  
3D Structure ◽  
Structural Heterogeneity ◽  
X Ray Diffraction ◽  
Length Scales ◽  
X Ray ◽  
Diffraction Imaging ◽  
Self Assembled

Mesocrystals are nanostructured materials consisting of individual nanocrystals having a preferred crystallographic orientation. On mesoscopic length scales, the properties of mesocrystals are strongly affected by structural heterogeneity. Here, we report...

Orientation in Methyl- and Hydroxyl-Terminated Self-Assembled Alkanephosphate Monolayers on Titanium Oxide Surfaces Investigated with Soft X-ray Absorption

Langmuir ◽  
2002 ◽  
Vol 18 (10) ◽  
pp. 3957-3962 ◽  
Author(s):  
Mathias Zwahlen ◽  
Samuele Tosatti ◽  
Marcus Textor ◽  
Georg Hähner
Keyword(s):  
Titanium Oxide ◽  
Oxide Surfaces ◽  
X Ray ◽  
Self Assembled ◽  
X Ray Absorption

A Near Edge X-ray Absorption Fine Structure Spectroscopy Investigation of the Structure of Self-Assembled Films of Octadecyltrichlorosilane

Langmuir ◽  
2002 ◽  
Vol 18 (4) ◽  
pp. 1250-1256 ◽  
Author(s):  
Richard D. Peters ◽  
Paul F. Nealey ◽  
Jason N. Crain ◽  
Franz J. Himpsel
Keyword(s):  
Fine Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Self Assembled ◽  
X Ray Absorption

Pattern formation using polystyrene benzaldimine self-assembled monolayer by soft X-ray

2018 ◽  
Vol 51 (4) ◽  
pp. 408-412
Author(s):  
Chandrashekhar Channapura Halappa ◽  
So-Jin Park
Keyword(s):  
Pattern Formation ◽  
Self Assembled Monolayer ◽  
X Ray ◽  
Self Assembled
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