Effect of ultrasonic attenuation on the feasibility of acoustic tweezers.

Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Research Abstract Details 

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Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Abstract Text:

Jungwoo Lee,K Kirk Shung,

A modified mathematical formulation for the calculation of axial radiation force was developed to incorporate the effect of ultrasonic attenuation. Axial forces, Fresnel coefficients, average internal attenuation factors and effective internal reflection coefficients were calculated. Thermal and mechanical indices were also computed to address the safety issues in the implementation of acoustic tweezers and were found to be negligible. The results show that the overall distribution of axial forces is barely affected by attenuation. Furthermore, it is found that attenuation actually works against the scattering force and may therefore reinforce the axial trapping force. For a particle size of 180 microm, the maximum trapping force increases from 29.8 x 10(-11) N to 30.3 x 10(-11) N by 1.7% when attenuation is included. In light of these results, it appears that acoustic tweezers may still be feasible beyond the focal point even under the influence of attenuation.

Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Publishing Authors By Initials

J Lee,KK Shung,

For similar natural sciences: physics: acoustics: ultrasonics research abstracts see: natural sciences: physics: acoustics: ultrasonics research

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Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Ultrasound in medicine & biology

VOLUME: 32

Page Numbers: 1575-83

Journal Abbreviation:

ISSN: 0301-5629

DAY: 3

MONTH: Oct

YEAR: 2006

Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Information

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LANGUAGE: eng

NlmUniqueID: 410553

Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Keywords Mesh Terms:

KEYWORDS: Ultrasonics

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Chemical & Substance for Abstract: Effect of ultrasonic attenuation on the feasibility of acoustic tweezers. Information

Substance Name: Fats

Registry Number: 0

Grant and Affiliation Information for Effect of ultrasonic attenuation on the feasibility of acoustic tweezers.

AFFILIATION: Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA. jungwool@usc.edu

Country: England

AGENCY: United States NIBIB

GRANT: P41-EB2182

ACRONYM: EB

MEDLINETA: Ultrasound Med Biol

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