USING SPHERICAL MAGNETIC PARTICLES FOR TESTING THE INTRACELLULAR VISCOSITY

被引：6

作者：

STAHLHOFEN, W

MOLLER, W

机构：

[1] Gesellschaft für Strahlen- und Umweltforschung München, Institut für Biophysikalische Strahlenforschung, D 6000 Frankfurt am Main 70

来源：

JOURNAL OF AEROSOL SCIENCE | 1990年 / 21卷

关键词：

SPHERICAL FE3O4-PARTICLES; MACROPHAGES; VISCOSITY; MACROPHAGE-ACTIVITY;

D O I：

10.1016/0021-8502(90)90274-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Spherical magnetite-particles were used to measure the intracellular viscosity and the cell-energy of macrophages in vivo. After strong-field magnetization and complete relaxation a weak magnetic field was applied in order to rotate the randomly oriented particles. From the increase of magnetization the viscosity was calculated and found to be 65.3 Pa.s. The macrophage-activity was characterized as randomization process with an energy E(Z) = 6.7.10(-18) J.

引用

页码：S435 / S438

页数：4

共 8 条

[1] FERRIMAGNETIC PARTICLES IN THE LUNG .2. THE RELAXATION PROCESS [J].

COHEN, D ;

NEMOTO, I ;

KAUFMAN, L ;

ARAI, S .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1984, 31 (03) :274-285

[2]

Gans R, 1928, ANN PHYS-BERLIN, V86, P628

[3]

MOLLER W, 1990, 1990 EUR AER C ZUR

[4] A MODEL OF MAGNETIZATION AND RELAXATION OF FERRIMAGNETIC PARTICLES IN THE LUNG [J].

NEMOTO, I .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1982, 29 (12) :745-752

[5]

NEMOTO I, 1989, 7TH INT C BIOM NEW Y

[6] DESCRIPTION OF A BIOMAGNETIC METHOD FOR DETECTION OF THE BEHAVIOR OF MAGNETIC AEROSOLS IN THE HUMAN LUNGS [J].

STAHLHOFEN, W ;

MOLLER, W .

JOURNAL OF AEROSOL SCIENCE, 1988, 19 (07) :1087-1091

[7] MAGNETIC PARTICLE MOTIONS WITHIN LIVING CELLS - PHYSICAL THEORY AND TECHNIQUES [J].

VALBERG, PA ;

BUTLER, JP .

BIOPHYSICAL JOURNAL, 1987, 52 (04) :537-550

[8] MAGNETIC PARTICLE MOTIONS WITHIN LIVING CELLS - MEASUREMENT OF CYTOPLASMIC VISCOSITY AND MOTILE ACTIVITY [J].

VALBERG, PA ;

FELDMAN, HA .

BIOPHYSICAL JOURNAL, 1987, 52 (04) :551-561

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