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Three-dimensional single particle tr...

Ragan, Timothy Michael.

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Three-dimensional single particle tracking on the two-photon microscope.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Three-dimensional single particle tracking on the two-photon microscope./
Author:	Ragan, Timothy Michael.
Description:	86 p.
Notes:	Adviser: Enrico Gratton.
Contained By:	Dissertation Abstracts International64-03B.
Subject:	Biophysics, General. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3086163

Three-dimensional single particle tracking on the two-photon microscope.
Ragan, Timothy Michael.

Three-dimensional single particle tracking on the two-photon microscope. - 86 p.

Adviser: Enrico Gratton.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003.

We have developed a 3D single-particle-tracking (SPT) system based around the two-photon laser-scanning fluorescence microscope that can track particles in all three dimensions and at a high frequency response. We have implemented two different techniques to achieve this goal. Both techniques employ feedback control in order to track the particle but differ in the approach they use to ascertain the particle's 3D position. The first technique scans a small volume around a particle to build up a volumetric image that is then used to determine the particle's position. The second technique scans only a single plane but utilizes optical aberrations which have been introduced into the optical system that break the axial symmetry of the point spread function and serves as an indicator of the particle's axial position. We identified several different modes of motion in sucrose solutions and agarose gels, including the transient trapping of particles in the microdomains of agarose gels. As an application of this technique, we have investigated the viscoelastic mechanical response of biological cells. The study involves attaching magnetic spheres to the surface of a cell, and then applying a magnetic field and monitoring the response of nearby fluorescent polystyrene spheres. We have observed significant motion of the cell in all three dimensions and have strong evidence that in order to adequately model the mechanical response of the cell it is important to monitor the motion in all three dimensions.Subjects--Topical Terms:

1019105
Biophysics, General.

Three-dimensional single particle tracking on the two-photon microscope.
LDR:02379nam 2200265 a 45 001 937656
005 20110511
008 110511s2003 eng d
035 $a (UnM)AAI3086163
035 $a AAI3086163
040 $a UnM $c UnM
100 1 $a Ragan, Timothy Michael. $3 1261519
245 1 0 $a Three-dimensional single particle tracking on the two-photon microscope.
300 $a 86 p.
500 $a Adviser: Enrico Gratton.
500 $a Source: Dissertation Abstracts International, Volume: 64-03, Section: B, page: 1132.
502 $a Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003.
520 $a We have developed a 3D single-particle-tracking (SPT) system based around the two-photon laser-scanning fluorescence microscope that can track particles in all three dimensions and at a high frequency response. We have implemented two different techniques to achieve this goal. Both techniques employ feedback control in order to track the particle but differ in the approach they use to ascertain the particle's 3D position. The first technique scans a small volume around a particle to build up a volumetric image that is then used to determine the particle's position. The second technique scans only a single plane but utilizes optical aberrations which have been introduced into the optical system that break the axial symmetry of the point spread function and serves as an indicator of the particle's axial position. We identified several different modes of motion in sucrose solutions and agarose gels, including the transient trapping of particles in the microdomains of agarose gels. As an application of this technique, we have investigated the viscoelastic mechanical response of biological cells. The study involves attaching magnetic spheres to the surface of a cell, and then applying a magnetic field and monitoring the response of nearby fluorescent polystyrene spheres. We have observed significant motion of the cell in all three dimensions and have strong evidence that in order to adequately model the mechanical response of the cell it is important to monitor the motion in all three dimensions.
590 $a School code: 0090.
650 4 $a Biophysics, General. $3 1019105
650 4 $a Engineering, Electronics and Electrical. $3 626636
690 $a 0544
690 $a 0786
710 2 0 $a University of Illinois at Urbana-Champaign. $3 626646
773 0 $t Dissertation Abstracts International $g 64-03B.
790 $a 0090
790 1 0 $a Gratton, Enrico, $e advisor
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3086163