Nanocommunication System with a Laser Activated Molecular Film

2018 ◽  
pp. 649-655 ◽  
Author(s):  
Elena Velichko ◽  
Ekaterina Savchenko ◽  
Elina Nepomnyashchaya ◽  
Dmitrii Dyubo ◽  
Oleg Tsybin
Keyword(s):  
Molecular Film

An Analysis of Dissociation of Molecules in a High Resolution Electron Microscope

1973 ◽  
Vol 31 ◽  
pp. 486-487
Author(s):  
Mihir Parikh
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Cross Sections ◽  
Resolving Power ◽  
Peak Intensity ◽  
Molecular Film ◽  
Resolution Electron ◽  
Dissociation Cross Section ◽  
High Resolution Electron Microscope ◽  
The Stability

It is well known that the resolution of bio-molecules in a high resolution electron microscope depends not just on the physical resolving power of the instrument, but also on the stability of these molecules under the electron beam. Experimentally, the damage to the bio-molecules is commo ly monitored by the decrease in the intensity of the diffraction pattern, or more quantitatively by the decrease in the peaks of an energy loss spectrum. In the latter case the exposure, EC, to decrease the peak intensity from IO to I’O can be related to the molecular dissociation cross-section, σD, by EC = ℓn(IO /I’O) /ℓD. Qu ntitative data on damage cross-sections are just being reported, However, the microscopist needs to know the explicit dependence of damage on: (1) the molecular properties, (2) the density and characteristics of the molecular film and that of the support film, if any, (3) the temperature of the molecular film and (4) certain characteristics of the electron microscope used

Study on the Mechanism of Enhancing Oil Recovery by Molecular Film Displacement

2011 ◽  
Vol 236-238 ◽  
pp. 2135-2141
Author(s):  
Qi Cheng Liu ◽  
Yong Jian Liu
Keyword(s):  
Oil Recovery ◽  
Electrostatic Interaction ◽  
Ultrathin Films ◽  
Water Solution ◽  
Wettability Alteration ◽  
Nanometer Scale ◽  
Rock Surface ◽  
Capillary Imbibition ◽  
Molecular Film ◽  
Polymer Surfactant

Molecular film displacement is a new nanofilm EOR technique. A large number of experiments show that the mechanism of molecular film displacement is different from conventional chemical displacement (polymer, surfactant, alkali and ASP displacement etc). With water solution acting as transfer medium, molecules of the filming agent develop the force to form films through electrostatic interaction, with efficient molecules deposited on the negatively charged rock surface to form ultrathin films at nanometer scale. This change the properties of reservoir surface and the interaction condition with crude oil, making the oil easily be displaced as the pores swept by the injected fluid. Thus oil recovery is enhanced. The mechanism of molecular filming agent mainly includes absorption, wettability alteration, diffusion and capillary imbibition etc.

Formation and Structure of Inhibitive Molecular Film of Oxadiazole on Iron Surface

2017 ◽  
Vol 121 (39) ◽  
pp. 21420-21429 ◽  
Author(s):  
Qi Zheng ◽  
Jinyang Jiang ◽  
Dongshuai Hou ◽  
Shengping Wu ◽  
Fengjuan Wang ◽  
...  
Keyword(s):  
Iron Surface ◽  
Molecular Film

Molecular dynamics method in studies of molecular film growth processes

2006 ◽  
Vol 47 (3) ◽  
pp. 532-548 ◽  
Author(s):  
I. F. Golovnev ◽  
T. V. Basova ◽  
E. K. Koltsov ◽  
I. K. Igumenov
Keyword(s):  
Molecular Dynamics ◽  
Film Growth ◽  
Molecular Dynamics Method ◽  
Growth Processes ◽  
Molecular Film ◽  
Dynamics Method

Pressure-Sensitive Molecular Film

2015 ◽  
pp. 2871-2879
Author(s):  
Yu Matsuda ◽  
Hiroki Yamaguchi ◽  
Tomohide Niimi
Keyword(s):  
Pressure Sensitive ◽  
Molecular Film

scholarly journals Molecular layers in thin supported films exhibit the same scaling as the bulk between slow relaxation and vibrational dynamics

Soft Matter ◽  
2018 ◽  
Vol 14 (43) ◽  
pp. 8814-8820 ◽  
Author(s):  
Matteo Becchi ◽  
Andrea Giuntoli ◽  
Dino Leporini
Keyword(s):  
Scaling Law ◽  
Slow Relaxation ◽  
Slow Dynamics ◽  
Vibrational Dynamics ◽  
Molecular Film ◽  
Molecular Layers

The vibrational and the slow dynamics of a thin molecular film comply with the same scaling law observed in the bulk.

Interfacial Design of Silicon/Polypyrrole Junctions

1999 ◽  
Vol 598 ◽  
Author(s):  
Namyong Y. Kim ◽  
Inge E. Vermeir ◽  
Paul E. Laibinis
Keyword(s):  
Electrochemical Polymerization ◽  
Silicon Surfaces ◽  
Polymerization Process ◽  
Phase Reaction ◽  
Chemically Modified ◽  
Polypyrrole Films ◽  
Molecular Film ◽  
Electrochemical Control ◽  
Current Densities ◽  
Organolithium Reagent

ABSTRACTHydrogen-terminated silicon surfaces exposing a molecular film of covalently grafted pyrrole units were formed by a solution-phase reaction using the organolithium reagent 5-(N-pyrrolyl)pentyllithium. Electrochemical polymerization of pyrrole onto native hydrogen-terminated silicon surfaces and these chemically modified supports produced silicon/polypyrrole junctions that showed diode-like characteristics, with those formed on the latter substrate exhibiting higher current densities and better ideality factors. The presence of the grafted pyrrole films on silicon provided a better electrochemical control over the polymerization process and yielded smoother polypyrrole films than on the native hydrogen-terminated silicon supports. Impedance measurements revealed that the electrical improvements to the silicon/polypyrrole junctions were a consequence of incorporating sites on the silicon surface for direct contact between the conducting polymer and the semiconductor, as the barrier height of the junction appeared to be unaffected by the chemical modification.

Sign in / Sign up

Export Citation Format

Share Document