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@ARTICLE{Barnsley:850823,
author = {Barnsley, Lester and Gray, Michael D. and Beguin, Estelle
and Carugo, Dario and Stride, Eleanor},
title = {{A} {C}ombined {M}agnetic-{A}coustic {D}evice for
{S}imultaneous, {C}oaligned {A}pplication of {M}agnetic and
{U}ltrasonic {F}ields},
journal = {Advanced materials technologies},
volume = {3},
number = {7},
issn = {2365-709X},
address = {Weinheim},
publisher = {Wiley},
reportid = {FZJ-2018-04594},
pages = {1800081 -},
year = {2018},
abstract = {Acoustically‐responsive microbubbles have been widely
researched as agents for both diagnostic and therapeutic
applications of ultrasound. There has also been considerable
interest in magnetically‐functionalised microbubbles as
multi‐modality imaging agents and carriers for targeted
drug delivery. In this paper, we present a design for an
integrated device capable of generating co‐aligned
magnetic and acoustic fields in order to accumulate
microbubbles at a specific location and to activate them
acoustically. For this proof‐of‐concept study, the
device was designed to concentrate microbubbles at a
distance of 10 mm from the probe's surface, commensurate
with relevant tissue depths in preclinical small animal
models. Previous studies have indicated that both
microbubble concentration and duration of cavitation
activity are positively correlated with therapeutic effect.
The utility of the device was assessed in vitro tests in a
tissue‐mimicking phantom containing a single vessel (1.2
mm diameter). At a peak fluid velocity of 4.2 mm s−1
microbubble accumulation was observed under B‐mode
ultrasound imaging and the corresponding cavitation activity
was sustained for a period more than 4 times longer than
that achieved with an identical acoustic field but in the
absence of a magnet. The feasibility of developing a larger
scale device for human applications is discussed.},
cin = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {600},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000438336800015},
doi = {10.1002/admt.201800081},
url = {https://juser.fz-juelich.de/record/850823},
}