TY - JOUR
T1 - Application of Acoustic Bessel Beams for Handling of Hollow Porous Spheres
AU - Azarpeyvand, Mahdi
AU - Azarpeyvand, Mohammad
PY - 2014/2
Y1 - 2014/2
N2 - Acoustic manipulation of porous spherical shells, widely used as drug delivery carriers and magnetic resonance imaging contrast agents, is investigated analytically. The technique used for this purpose is based on the application of high-order Bessel beams as a single-beam acoustic manipulation device, by which particles lying on the axis of the beam can be pulled toward the beam source. The exerted acoustic radiation force is calculated using the standard partial-wave series method, and the wave propagation within the porous media is modeled using Biot's theory of poro-elasticity. Numerical simulations are performed for porous aluminum and silica shells of different thickness and porosity. Results indicate that manipulation of low-porosity shells is possible using Bessel beams with large conical angles, over a number of broadband frequency ranges, whereas manipulation of highly porous shells can occur over both narrowband and broadband frequency domains.
AB - Acoustic manipulation of porous spherical shells, widely used as drug delivery carriers and magnetic resonance imaging contrast agents, is investigated analytically. The technique used for this purpose is based on the application of high-order Bessel beams as a single-beam acoustic manipulation device, by which particles lying on the axis of the beam can be pulled toward the beam source. The exerted acoustic radiation force is calculated using the standard partial-wave series method, and the wave propagation within the porous media is modeled using Biot's theory of poro-elasticity. Numerical simulations are performed for porous aluminum and silica shells of different thickness and porosity. Results indicate that manipulation of low-porosity shells is possible using Bessel beams with large conical angles, over a number of broadband frequency ranges, whereas manipulation of highly porous shells can occur over both narrowband and broadband frequency domains.
KW - Acoustic manipulation
KW - Bessel beam
KW - Biot's theory
KW - Microporous
KW - Porous shell
UR - http://www.scopus.com/inward/record.url?scp=84891632319&partnerID=8YFLogxK
U2 - 10.1016/j.ultrasmedbio.2013.07.008
DO - 10.1016/j.ultrasmedbio.2013.07.008
M3 - Article (Academic Journal)
C2 - 24342912
AN - SCOPUS:84891632319
SN - 0301-5629
VL - 40
SP - 422
EP - 433
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
IS - 2
ER -