Medical Design Briefs - November 2024 - 42

these promising medications into the
ear very effectively. "
Magnetic nanoparticles have been used
as a drug-delivery system in other parts of
the body, but Sun says his research is helping
develop a better understanding of exactly
how to engineer the nanoparticles
specifically for the ear's anatomy.
" The goal is to create something that's
minimally invasive and then use a magnetic
field to steer these nanoparticles
into the ear where hearing loss is happening, "
Sun says.
Different kinds of hearing loss, like
age-related hearing loss, noise trauma,
and sudden hearing loss, are caused by
different mechanisms and therefore treated
by different medications. If magnetic
nanoparticles are effective, they could act
as the delivery truck that gets loaded up
with the specific medication each patient
needs based on their kind of hearing loss.
" Based on the way they're engineered,
these particles can carry many different
forms of medications, " Sun says. " It's essential
that we can use a common platform
for different medications that can
target different types of hearing loss. "
In addition to the magnetic field research,
Sun and Donglu Shi, PhD, from
UC's department of mechanical and materials
engineering, are collaborating to
study the effectiveness of lasers to activate
the nanoparticles and help them
penetrate the inner ear.
" We want to approach it very systematically
and rigorously to truly understand
how to design these nanoparticles
in a way that is biocompatible, that
is safe for hearing and balance function
in the ear, " Sun says. " At the same
time, we want to provide very robust
drug delivery capabilities. We're really
starting from the ground up to understand
how these particles really penetrate
the membrane that separates our
middle ear from the inner ear and how
these particles actually go to the areas
of the inner ear that we need them to
go to. "
Long term, Sun said a breakthrough
in drug delivery combined with the new
medications being developed could
open a new world for noninvasive treatment
of hearing loss.
" We really want to look to a future
where people, regardless of age or their
health, can safely undergo these treatments
with these promising medications
in a way that is minimally invasive and
also effective in treating their hearing
loss, " he says.
This article was written by contact Tim
Tedeschi, University of Cincinnati. For
more information, contact Daniel Sun,
MD, at 513-475-8400 or visit www.uc.edu.
Implantable Miniature Brain-Machine Interface Offers
Low Power Usage
The MiBMI is capable
of direct brain-to-text
communication.
EPFL
Lausanne, Switzerland
Brain-machine interfaces (BMIs) have
emerged as a promising solution for
restoring communication and control
to individuals with severe motor impairments.
Traditionally, these systems
have been bulky, power-intensive, and
limited in their practical applications.
Researchers at EPFL have developed
the first high-performance, miniaturized
brain-machine interface (MiBMI), offering
an extremely small, low-power, highly
accurate, and versatile solution.
Published in the IEEE Journal of
Solid- State Circuits and presented at the
International Solid-State Circuits Conference,
the MiBMI not only enhances
the efficiency and scalability of brainmachine
interfaces but also paves the
way for practical, fully implantable devices.
This technology holds the potential
to significantly improve the quality of
life for patients with conditions such as
amyotrophic lateral sclerosis (ALS) and
spinal cord injuries.
42
The next-generation miniaturized brain-machine interface capable of direct brain-to-text communication on tiny silicon
chips. (Credit: EPFL)
The MiBMI's small size and low power
are key features, making the system
suitable for implantable applications.
Its minimal invasiveness ensures safety
and practicality for use in clinical and
real-life settings. It is also a fully integrated
system, meaning that the recording
and processing are done on two extremely
small chips with a total area of
www.medicaldesignbriefs.com
8 mm2
. This is the latest in a new class
of low-power BMI devices developed at
Mahsa Shoaran's Integrated Neurotechnologies
Laboratory (INL) at EPFL's
IEM and Neuro X institutes.
" MiBMI allows us to convert intricate
neural activity into readable text with
high accuracy and low power consumption.
This advancement brings us closer
Medical Design Briefs, November 2024
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Medical Design Briefs - November 2024

Table of Contents for the Digital Edition of Medical Design Briefs - November 2024

Medical Design Briefs - November 2024 - Intro
Medical Design Briefs - November 2024 - Sponsor
Medical Design Briefs - November 2024 - COV1a
Medical Design Briefs - November 2024 - COV1b
Medical Design Briefs - November 2024 - COV1
Medical Design Briefs - November 2024 - COV2
Medical Design Briefs - November 2024 - 1
Medical Design Briefs - November 2024 - 2
Medical Design Briefs - November 2024 - 3
Medical Design Briefs - November 2024 - 4
Medical Design Briefs - November 2024 - 5
Medical Design Briefs - November 2024 - 6
Medical Design Briefs - November 2024 - 7
Medical Design Briefs - November 2024 - 8
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Medical Design Briefs - November 2024 - 50
Medical Design Briefs - November 2024 - COV3
Medical Design Briefs - November 2024 - COV4
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