1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Optical tweezers with fluorescence detection for temperature-dependent microrheological measurements
Rent:
Rent this article for
USD
10.1063/1.4789429
/content/aip/journal/rsi/84/1/10.1063/1.4789429
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/1/10.1063/1.4789429
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Optical configuration of optical tweezers; BE: beam expander, M1 and M3: mirrors, M2: piezo-controlled mirror, WP: wave plate, PBS: polarizing beam splitter, L1-6: lens, DM: dichroic mirror, F1 and F2: IR cut-off filters, CCD: charge-coupled device, QPD: quadrant photodiode, PC: personal computer.

Image of FIG. 2.
FIG. 2.

(a) Time dependence of the phase lag between the laser and the particle displacements during the oscillation of the particle dispersed in water. (b) Plot of an input modulation voltage to the piezo-controlled mirror corresponding to the sinusoidal oscillation of the beam position and output voltages generated by the quadrant photodiode arising from the successive particle motion. The experimental conditions were as follows: A L = 320 nm, frequency = 1.0 Hz, and temperature = 298 K.

Image of FIG. 3.
FIG. 3.

(a) Position of an optically-trapped particle during the substage movement, which generated a water flow alternated in direction. The particle position was detected by the CCD camera. (b) Spring constants plotted as a function of the laser power; 2.70 mV, 5.40 mV, 8.09 mV, and 10.8 mV. The laser power was measured at a location of the objective lens.

Image of FIG. 4.
FIG. 4.

Relationship between the amplitude of the sinusoidal movements of the laser (A L) and the viscoelastic moduli (G and G ) for a worm-like micelle solution. The experimental conditions were as follows: frequency = 1.0 Hz, temperature = 298 K, and [CTAB] = [NaSal] = 100 mM.

Image of FIG. 5.
FIG. 5.

(a) Frequency dependence of the viscoelastic moduli (G and G ) for a worm-like micelle solution at different temperatures. Solid lines denote the best-fit curves obtained using a Maxwell model with a single relaxation time. (b) Plot of logarithm of plateau modulus (G 0) and relaxation time (τ) as a function of the inverse temperature. The experimental conditions were as follows: A L = 320 nm, [CTAB] = 100 mM, and [NaSal] = 80 mM.

Loading

Article metrics loading...

/content/aip/journal/rsi/84/1/10.1063/1.4789429
2013-01-31
2014-04-18
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical tweezers with fluorescence detection for temperature-dependent microrheological measurements
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/1/10.1063/1.4789429
10.1063/1.4789429
SEARCH_EXPAND_ITEM