Fabrication of Carboxylic Acid-Terminated Thin Films Using Poly(ethyleneimine) on a Gold Surface

Langmuir ◽  
1997 ◽  
Vol 13 (16) ◽  
pp. 4487-4489 ◽  
Author(s):  
Jeffrey J. Chance ◽  
William C. Purdy
Keyword(s):  
Thin Films ◽  
Carboxylic Acid ◽  
Gold Surface

scholarly journals 7-Alkoxy-appended coumarin derivatives: synthesis, photo-physical properties, aggregation behaviours and current–voltage (I–V) characteristic studies on thin films

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10212-10223
Author(s):  
Abhijit Rudra Paul ◽  
Bapi Dey ◽  
Sudip Suklabaidya ◽  
Syed Arshad Hussain ◽  
Swapan Majumdar
Keyword(s):  
Thin Films ◽  
Carboxylic Acid ◽  
Physical Properties ◽  
Chemical Characteristics ◽  
Coumarin Derivatives ◽  
Design Synthesis ◽  
Electrical Switching ◽  
Physico Chemical ◽  
Current Voltage

In this article, we demonstrate the design, synthesis and physico-chemical characteristics, including electrical switching behaviours of long alkoxy-appended coumarin carboxylate/carboxylic acid in thin films.

Structures of thin films of tertiary-phenyl-porphyrin derivatives on gold surface

2006 ◽  
Vol 499 (1-2) ◽  
pp. 157-160 ◽  
Author(s):  
T. Terui ◽  
S. Yokoyama ◽  
H. Suzuki ◽  
S. Mashiko ◽  
M. Sakurai ◽  
...  
Keyword(s):  
Thin Films ◽  
Gold Surface ◽  
Porphyrin Derivatives

Hybrid perfluorocarbon/carboxylic acid thin films via plasma deposition of hexafluoropropene and acrylic acid mixtures

Vacuum ◽  
2021 ◽  
Vol 184 ◽  
pp. 109933
Author(s):  
P. Bosso ◽  
A. Milella ◽  
V. Armenise ◽  
F. Fanelli ◽  
F. Fracassi
Keyword(s):  
Thin Films ◽  
Carboxylic Acid ◽  
Acrylic Acid ◽  
Plasma Deposition

scholarly journals Adhesion of Pseudomonas fluorescens(ATCC 17552) to Nonpolarized and Polarized Thin Films of Gold

2001 ◽  
Vol 67 (7) ◽  
pp. 3188-3194 ◽  
Author(s):  
J. P. Busalmen ◽  
S. R. de S�nchez
Keyword(s):  
Thin Films ◽  
Ionic Strength ◽  
Pseudomonas Fluorescens ◽  
Theoretical Calculations ◽  
Gold Surface ◽  
High Ionic Strength ◽  
Reversible Adhesion ◽  
Controlled Flow ◽  
Low Ionic Strength

ABSTRACT The adhesion of Pseudomonas fluorescens (ATCC 17552) to nonpolarized and negatively polarized thin films of gold was studied in situ by contrast microscopy using a thin-film electrochemical flow cell. The influence of the electrochemical potential was evaluated at two different ionic strengths (0.01 and 0.1 M NaCl; pH 7) under controlled flow. Adhesion to nonpolarized gold surfaces readily increased with the time of exposition at both ionic-strength values. At negative potentials (−0.2 and −0.5 V [Ag/AgCl-KCl saturated {sat.}]), on the other hand, bacterial adhesion was strongly inhibited. At 0.01 M NaCl, the inhibition was almost total at both negative potentials, whereas at 0.1 M NaCl the inhibition was proportional to the magnitude of the potential, being almost total at −0.5 V. The existence of reversible adhesion was investigated by carrying out experiments under stagnant conditions. Reversible adhesion was observed only at potential values very close to the potential of zero charge of the gold surface (0.0 V [Ag/AgCl-KCl sat.]) at a high ionic strength (0.1 M NaCl). Theoretical calculations of the Derjaguin-Landau-Verwey-Overbeek (DLVO) interaction energy for the bacteria-gold interaction were in good agreement with experimental results at low ionic strength (0.01 M). At high ionic strength (0.1 M), deviations from DLVO behavior related to the participation of specific interactions were observed, when surfaces were polarized to negative potentials.

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