Theoretical analysis of a cell's oscillations in an acoustic field Export

@article{citeulike:4503012, abstract = {The analysis and deformation of an individual cell in a high-frequency acoustic field is of fundamental interest for a variety of applications such as ultrasound cell separation and drug delivery. The oscillations of biological cells in a sound field are investigated using a shell model for the cell following an approach developed previously [Zinin, Ultrasonics, 30, 26-34 (1992)]. The model accounts for the three components which comprise the cell's motion: the internal fluid (cytoplasma), the cell membrane, and the surrounding fluid. The cell membrane whose thickness is small compared to the cell radius can be approximated as a thin elastic shell. The elastic properties of this shell together with the viscosities of the internal and external fluids determine the oscillations of the cell. The dipole oscillations of the cell depend on the surface area modulus and the maximum frequency for the relative change in cell area can be determined. Moreover, the higher order oscillations starting with the quadrupole oscillations are governed by the shell's shear modulus. Induced stresses in bacteria cell membranes in the vicinity of an oscillating bubble are investigated and cell rupture with respect to these stresses is analyzed.}, author = {{allen}, J. S. and {zinin}, P.}, citeulike-article-id = {4503012}, citeulike-linkout-0 = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005ASAJ..118.1942A}, journal = {Acoustical Society of America Journal}, keywords = {acoustic, cells, oscillations}, month = {September}, pages = {1942}, posted-at = {2009-05-11 16:49:52}, priority = {2}, title = {{Theoretical analysis of a cell's oscillations in an acoustic field}}, url = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005ASAJ..118.1942A}, volume = {118}, year = {2005} }

TY - JOUR ID - citeulike:4503012 L3 - citeulike-article-id:4503012 N2 - The analysis and deformation of an individual cell in a high-frequency acoustic field is of fundamental interest for a variety of applications such as ultrasound cell separation and drug delivery. The oscillations of biological cells in a sound field are investigated using a shell model for the cell following an approach developed previously [Zinin, Ultrasonics, 30, 26-34 (1992)]. The model accounts for the three components which comprise the cell's motion: the internal fluid (cytoplasma), the cell membrane, and the surrounding fluid. The cell membrane whose thickness is small compared to the cell radius can be approximated as a thin elastic shell. The elastic properties of this shell together with the viscosities of the internal and external fluids determine the oscillations of the cell. The dipole oscillations of the cell depend on the surface area modulus and the maximum frequency for the relative change in cell area can be determined. Moreover, the higher order oscillations starting with the quadrupole oscillations are governed by the shell's shear modulus. Induced stresses in bacteria cell membranes in the vicinity of an oscillating bubble are investigated and cell rupture with respect to these stresses is analyzed. JF - Acoustical Society of America Journal EP - 1942 TI - {Theoretical analysis of a cell's oscillations in an acoustic field} VL - 118 SP - 1942 KW - acoustic KW - cells KW - oscillations AU - {allen}, JS AU - {zinin}, P PY - 2005/September// UR - http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005ASAJ..118.1942A ER -