Interfacial dynamics of water-in-oil microemulsion droplets: determination of the bending modulus using iodine laser temperature jump

Langmuir ◽  
1993 ◽  
Vol 9 (8) ◽  
pp. 2045-2052 ◽  
Author(s):  
Paschalis Alexandridis ◽  
Josef F. Holzwarth ◽  
T. Alan Hatton
Keyword(s):  
Temperature Jump ◽  
Interfacial Dynamics ◽  
Iodine Laser ◽  
Bending Modulus ◽  
Laser Temperature Jump

Interfacial Dynamics of Water-in-Oil Dropliets: a Temperature-Jump Investigation

1992 ◽  
Vol 290 ◽  
Author(s):  
Paschalis Alexandridis ◽  
Josef F. Holzwarth ◽  
T. Alan Hatton
Keyword(s):  
Initial Temperature ◽  
Temperature Jump ◽  
Salt Content ◽  
Time Interval ◽  
Bending Rigidity ◽  
Bending Modulus ◽  
System Equilibrium ◽  
Shape Perturbation ◽  
Laser Temperature Jump ◽  
Spherical Interface

AbstractThe dynamic response of water-in-oil AOT microemulsion droplets to perturbations caused by rapid energy transfer has been interpreted in terms of the surfactant interface bending rigidity. The Iodine Laser Temperature Jump technique was used to rapidly (1 μs) increase the microemulsion temperature and thus disturb the system equilibrium. The dynamic relaxation to the new equilibrium position was monitored by measuring the turbidity of the microemulsion over a I ms time interval immediately after the temperature jump. The rate and direction of the turbidity change depended on the initial temperature, size and salt content of the water droplets. We observed characteristic times of 2 to 10 μs and attributed them to the relaxation of the surfactant interface. A bending modulus of 0.4 kT was derived for the AOT interface, using a model for the shape perturbation of a spherical interface.

Dynamics of AOT and AOT/Nonionic Cosurfactant Microemulsions. An Iodine-Laser Temperature Jump Study

Langmuir ◽  
2000 ◽  
Vol 16 (14) ◽  
pp. 5892-5899 ◽  
Author(s):  
Luís M. M. Nazário ◽  
João P. S. G. Crespo ◽  
Josef F. Holzwarth ◽  
T. Alan Hatton
Keyword(s):  
Temperature Jump ◽  
Iodine Laser ◽  
Laser Temperature Jump

Percolation of Water-in-Oil Microemulsions Studied by the Iodine Laser Temperature Jump

Langmuir ◽  
1995 ◽  
Vol 11 (7) ◽  
pp. 2405-2409 ◽  
Author(s):  
C. Petit ◽  
J. F. Holzwarth ◽  
M. P. Pileni
Keyword(s):  
Temperature Jump ◽  
Iodine Laser ◽  
Laser Temperature Jump

Mechanism of azide binding to chloroperoxidase and horseradish peroxidase: use of an iodine laser temperature-jump apparatus

Biochemistry ◽  
1988 ◽  
Vol 27 (17) ◽  
pp. 6628-6633 ◽  
Author(s):  
Josef F. Holzwarth ◽  
Frank Meyer ◽  
Michael Pickard ◽  
H. Brian Dunford
Keyword(s):  
Horseradish Peroxidase ◽  
Temperature Jump ◽  
Iodine Laser ◽  
Laser Temperature Jump ◽  
Azide Binding

An iodine laser temperature-jump apparatus

1985 ◽  
Vol 18 (10) ◽  
pp. 833-836 ◽  
Author(s):  
J Gormally ◽  
D M Bloor ◽  
S Higson
Keyword(s):  
Temperature Jump ◽  
Iodine Laser ◽  
Laser Temperature Jump
Sign in / Sign up

Export Citation Format

Share Document