An FT-IR study of time-dependent orientational changes in one-monolayer Langmuir-Blodgett films of alkyl-tetracyanoquinodimethane

1998 ◽  
Author(s):  
S. Morita ◽  
Y. Wang ◽  
K. Iriyama ◽  
Y. Ozaki
Keyword(s):  
Time Dependent ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Ft Ir ◽  
Ir Study

FT-IR Study of Molecular Orientation and Anisotropy in "Command Surfaces" Formed by Langmuir-Blodgett Films of Azobenzene Amphiphilic Polymers

Langmuir ◽  
1994 ◽  
Vol 10 (6) ◽  
pp. 1898-1902 ◽  
Author(s):  
Norihisa Katayama ◽  
Yukihiro Ozaki ◽  
Takahiro Seki ◽  
Takashi Tamaki ◽  
Keiji Iriyama
Keyword(s):  
Molecular Orientation ◽  
Amphiphilic Polymers ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Ft Ir ◽  
Ir Study

FT-IR Study of Langmuir-Blodgett Films of Chlorophyll a

1997 ◽  
pp. 675-676
Author(s):  
Hidetoshi Sato ◽  
Yukihiro Ozaki ◽  
Kaku Uehara ◽  
Toshinari Araki ◽  
Keiji Iriyama
Keyword(s):  
Chlorophyll A ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Ft Ir ◽  
Ir Study

NANOSURFACE MODIFICATION USING REACTIVE LANGMUIR–BLODGETT FILMS

2002 ◽  
Vol 01 (05n06) ◽  
pp. 637-640 ◽  
Author(s):  
Y. KADO ◽  
A. AOKI ◽  
T. MIYASHITA
Keyword(s):  
Fluorescent Microscopy ◽  
Ph Sensor ◽  
Fluorescein Isothiocyanate ◽  
Bulk Solution ◽  
Amino Group ◽  
Lb Films ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Ft Ir ◽  
Terminal Amino

We describe a simple and effective approach to the introduction of a functional group into polymer nanofilms on the solid surface using reactive Langmuir–Blodgett films. N-Dodecylacrylamide copolymers containing a terminal amino group in the side chains as a reactive moiety form a stable monolayer on a water surface, and the monolayer was transferred onto a solid support with a transfer ratio of unity. The LB films were characterized by various spectroscopic methods. The reactivity of the terminal amino group incorporated in the LB films was investigated in detail using fluorescein isothiocyanate (FITC) as a fluorescent probe. The chemical reaction between the amino group in the LB films and FITC in the bulk solution was completed within approximately 30 min and the chemical bond formation was confirmed by FT-IR spectroscopy. Furthermore, the ability as a pH sensor was observed with fluorescent microscopy.

QCM and FT-IR Study of Phospholipid Bilayers Obtained by Langmuir-Blodgett Method

2007 ◽  
Vol 121-123 ◽  
pp. 863-866 ◽  
Author(s):  
Herman S. Mansur ◽  
Juliano E. Oliveira
Keyword(s):  
Quartz Crystal ◽  
Chloroform Solution ◽  
Molecular Organization ◽  
Single Shot ◽  
Langmuir Blodgett ◽  
Phospholipid Monolayers ◽  
Air Water Interface ◽  
Ft Ir ◽  
Frequency Changes ◽  
Ir Study

The aim of this study was to characterize phospholipids bilayers deposited through Langmuir-Blodgett (LB) using Fourier Transform Infrared Spectroscopy (FTIR) and Quartz Crystal Microbalance (QCM) sensor. Phospholipids dimyristoylphosphatidylcholine (DMPC), dimyristoylphosphatidylethanolamine (DMPE), dipalmitoylphosphatidylethanolamine (DPPE) bilayers were deposited. Also, hybrid monolayer of DMPC/Cholesterol (DMPC/CHOL) was prepared. Phospholipid with concentration of 1 mg.ml-1 in chloroform solution was spread at the air-water interface of a Teflon-made LB trough containing a subphase of Milli-Q water using the single-shot method. Phospholipid monolayers were transferred onto the QCM crystal and ZnSe crystals as planar solid support for FTIR measurements using the vertical dipping method. Homogeneous molecular LB films of DMPC, DMPE, DPPE phospholipids and DMPC/CHOL hybrid were produced and characterized by isotherms (Π-area), transfer ratio (θ) and QCM frequency changes results. Also, FTIR spectra results have also indicated the surface molecular organization and packing with the presence of major vibration bands.

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