Journal
ULTRASOUND IN MEDICINE AND BIOLOGY
Volume 40, Issue 2, Pages 422-433Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2013.07.008
Keywords
Acoustic manipulation; Bessel beam; Biot's theory; Porous shell; Microporous
Funding
- Royal Academy of Engineering
Ask authors/readers for more resources
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. (E-mail: m.azarpeyvand@bristol.ac.uk) (C) 2014 World Federation for Ultrasound in Medicine & Biology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available