Observing Self-Assembled Lipid Nanoparticles Building Order and Complexity through Low-Energy Transformation Processes

ACS Nano ◽  
2009 ◽  
Vol 3 (9) ◽  
pp. 2789-2797 ◽  
Author(s):  
Xavier Mulet ◽  
Xiaojuan Gong ◽  
Lynne J. Waddington ◽  
Calum J. Drummond
Keyword(s):  
Lipid Nanoparticles ◽  
Low Energy ◽  
Energy Transformation ◽  
Self Assembled ◽  
Transformation Processes

scholarly journals An estimation on the mechanical stabilities of SAMs by low energy Ar+ cluster ion collision

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Y. Tong ◽  
G. R. Berdiyorov ◽  
A. Sinopoli ◽  
M. E. Madjet ◽  
V. A. Esaulov ◽  
...  
Keyword(s):  
Electron Irradiation ◽  
Photoelectron Spectroscopy ◽  
Density Functional ◽  
Crystal Surface ◽  
Depth Profiling ◽  
Low Energy ◽  
Cross Linking ◽  
Xps Spectra ◽  
Self Assembled ◽  
The Stability

AbstractThe stability of the molecular self-assembled monolayers (SAMs) is of vital importance to the performance of the molecular electronics and their integration to the future electronics devices. Here we study the effect of electron irradiation-induced cross-linking on the stability of self-assembled monolayer of aromatic 5,5′-bis(mercaptomethyl)-2,2′-bipyridine [BPD; HS-CH2-(C5H3N)2-CH2-SH] on Au (111) single crystal surface. As a refence, we also study the properties of SAMs of electron saturated 1-dodecanethiol [C12; CH3-(CH2)11-SH] molecules. The stability of the considered SAMs before and after electron-irradiation is studied using low energy Ar+ cluster depth profiling monitored by recording the X-ray photoelectron spectroscopy (XPS) core level spectra and the UV-photoelectron spectroscopy (UPS) in the valance band range. The results indicate a stronger mechanical stability of BPD SAMs than the C12 SAMs. The stability of BPD SAMs enhances further after electron irradiation due to intermolecular cross-linking, whereas the electron irradiation results in deterioration of C12 molecules due to the saturated nature of the molecules. The depth profiling time of the cross-linked BPD SAM is more than 4 and 8 times longer than the profiling time obtained for pristine and BPD and C12 SAMs, respectively. The UPS results are supported by density functional theory calculations, which show qualitative agreement with the experiment and enable us to interpret the features in the XPS spectra during the etching process for structural characterization. The obtained results offer helpful options to estimate the structural stability of SAMs which is a key factor for the fabrication of molecular devices.

scholarly journals Exploration of Structural and Kinetic Components of Physical Information

Proceedings ◽  
2020 ◽  
Vol 47 (1) ◽  
pp. 16
Author(s):  
Annette Grathoff
Keyword(s):  
Simple Model ◽  
Material Properties ◽  
Evolutionary Perspective ◽  
Energy Transformation ◽  
Physical Information ◽  
Kinetics Of ◽  
Transformation Processes

As Wiener asserted, information is information, not matter, not energy. Physical aspects of information are deeply grounded in energy transformation processes. Adopting an evolutionary perspective, it is demonstrated that there are two complementary informative influences on energy transformation. To do this, we use a simple model of an idealized monochord instrument. This allows modeling information contained in the kinetics of the oscillating string as both (a) generated by the structure of the instrument, and (b) generating non-arbitrary motion structures in sensible receiving configurations that are similar in scale, geometry, and material properties.

Functionalization of a Self-Assembled Monolayer Driven by Low-Energy Electron Exposure

Langmuir ◽  
2011 ◽  
Vol 28 (1) ◽  
pp. 367-376 ◽  
Author(s):  
T. Hamann ◽  
L. Kankate ◽  
E. Böhler ◽  
J. H. Bredehöft ◽  
F. M. Zhang ◽  
...  
Keyword(s):  
Low Energy ◽  
Energy Electron ◽  
Self Assembled Monolayer ◽  
Low Energy Electron ◽  
Self Assembled

scholarly journals Structural lipid nanoparticles self-assembled from electrospun core–shell polymeric nanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9462-9466 ◽  
Author(s):  
Deng-Guang Yu ◽  
Kenneth White ◽  
Nicholas Chatterton ◽  
Ying Li ◽  
Lingling Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Composite Nanofibers ◽  
Lipid Nanoparticles ◽  
Core Shell ◽  
Polymeric Nanocomposites ◽  
Structural Lipid ◽  
Self Assembled

Electrospun core–sheath composite nanofibers are exploited as templates to manipulate molecular self-assembly for generating core–shell lipid nanoparticles.

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