Metal deposition onto a thiol-covered gold surface: A new approach

2005 ◽  
Vol 50 (21) ◽  
pp. 4283-4288 ◽  
Author(s):  
Valentina Ivanova ◽  
Thorsten Baunach ◽  
Dieter M. Kolb
Keyword(s):  
Gold Surface ◽  
Metal Deposition ◽  
New Approach

scholarly journals Fullerenes as adhesive layers for mechanical peeling of metallic, molecular and polymer thin films

2014 ◽  
Vol 5 ◽  
pp. 394-401 ◽  
Author(s):  
Maria B Wieland ◽  
Anna G Slater ◽  
Barry Mangham ◽  
Neil R Champness ◽  
Peter H Beton
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Adhesive Layer ◽  
Gold Surface ◽  
Dielectric Surface ◽  
Organic Monolayers ◽  
New Approach ◽  
Adhesive Layers ◽  
Molecular Adhesion ◽  
Gold Thin Film

We show that thin films of C60 with a thickness ranging from 10 to 100 nm can promote adhesion between a Au thin film deposited on mica and a solution-deposited layer of the elastomer polymethyldisolaxane (PDMS). This molecular adhesion facilitates the removal of the gold film from the mica support by peeling and provides a new approach to template stripping which avoids the use of conventional adhesive layers. The fullerene adhesion layers may also be used to remove organic monolayers and thin films as well as two-dimensional polymers which are pre-formed on the gold surface and have monolayer thickness. Following the removal from the mica support the monolayers may be isolated and transferred to a dielectric surface by etching of the gold thin film, mechanical transfer and removal of the fullerene layer by annealing/dissolution. The use of this molecular adhesive layer provides a new route to transfer polymeric films from metal substrates to other surfaces as we demonstrate for an assembly of covalently-coupled porphyrins.

scholarly journals Are Two Better Than One? A New Approach for Multidentate Grafting of Peptides to a Gold Substrate

2016 ◽  
Vol 230 (9) ◽  
Author(s):  
Mario Caruso ◽  
Emanuela Gatto ◽  
Antonio Palleschi ◽  
Manuela Scarselli ◽  
Maurizio De Crescenzi ◽  
...  
Keyword(s):  
Amino Acid ◽  
Carboxylic Acid ◽  
Gold Surface ◽  
Peptide Chain ◽  
Gold Substrate ◽  
New Approach ◽  
Better Than

AbstractMultidentate binding of two helical hexapeptides to a gold surface was obtained by introducing in the peptide chain a non ribosomial amino acid, i.e. the 4-amino-1,2-dithiolane-4-carboxylic acid (Adt) residue, a C

scholarly journals Non-Fourier Estimate of Electron Temperature in Case of Femtosecond Laser Pulses Interaction with Metals

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 606 ◽  
Author(s):  
Anca M. Bucă ◽  
Mihai Oane ◽  
Muhammad Arif Mahmood ◽  
Ion N. Mihăilescu ◽  
Andrei C. Popescu ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Electron Temperature ◽  
Relaxation Times ◽  
Gold Surface ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
New Approach ◽  
Thermal Fields ◽  
Coupling Factors

This work is devoted to the electron temperature variation in metals through interaction with femtosecond laser pulses. Our study was inspired by the last mathematical breakthroughs regarding the exact analytical solutions of the heat equation in the case of flash laser-matter interaction. To this purpose, the classical Anisimov’s two temperature model was extended via the 3D telegraph Zhukovsky equation. Based upon this new approach, the computational plots of electron thermal fields during the first laser pulse interaction with a gold surface were inferred. It is shown that relaxation times and coupling factors over electron thermal conductivities (g/K) govern the interaction between the laser pulse and metal sample during the first picoseconds. The lower the factor g/K, the higher the electron temperature becomes. In contrast, the lower the relaxation time, the lower the electron temperature.

The O–C diagrams of minor planets − a new approach to modelling the rotation

1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss
Keyword(s):  
Error Analysis ◽  
Time Dependence ◽  
Theoretical Work ◽  
Minor Planet ◽  
Minor Planets ◽  
New Approach ◽  
Preliminary Results ◽  
Ccd Observations

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.

A New Approach to the Demonstration of Oxidase-Localization Using Tannic Acid Or Catechin

1973 ◽  
Vol 31 ◽  
pp. 698-699
Author(s):  
V. Mizuhira ◽  
Y. Futaesaku
Keyword(s):  
Cross Section ◽  
Tannic Acid ◽  
Elastic Fiber ◽  
The Other ◽  
New Approach ◽  
Tissue Block ◽  
Active Reaction ◽  
The Cross

Previously we reported that tannic acid is a very effective fixative for proteins including polypeptides. Especially, in the cross section of microtubules, thirteen submits in A-tubule and eleven in B-tubule could be observed very clearly. An elastic fiber could be demonstrated very clearly, as an electron opaque, homogeneous fiber. However, tannic acid did not penetrate into the deep portion of the tissue-block. So we tried Catechin. This shows almost the same chemical natures as that of proteins, as tannic acid. Moreover, we thought that catechin should have two active-reaction sites, one is phenol,and the other is catechole. Catechole site should react with osmium, to make Os- black. Phenol-site should react with peroxidase existing perhydroxide.

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