Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(12)
Published: Jan. 19, 2023
Abstract
Bacterial
cellulose
(BC)
is
an
environmentally
friendly
biomaterial
that
widely
investigated
because
it
possesses
a
unique
hierarchical
nanofiber
network
structure
as
well
extraordinary
performance.
In
this
review,
the
formation
of
BC
from
perspective
biosynthesis
illustrated
based
on
its
basic
chemical
and
crystal
structure.
Moreover,
design
processing
BC‐based
advanced
materials
through
biosynthesis,
physical,
and/or
modification
are
also
reviewed.
The
intrinsic
characteristics
BC,
derived
structure,
analyzed
to
understand
structure–property–application
relationships.
applications
reviewed,
such
high‐strength
structural
utilizing
properties
nanofibers,
energy
conversion
storage,
bioelectronic
interfaces,
environmental
remediation,
thermal
management
ion
transport
3D
structures
these
materials.
addition,
authors
offer
their
opinions
potential
future
research
directions
for
sustainably
developing
Proceedings of the National Academy of Sciences,
Journal Year:
2019,
Volume and Issue:
116(52), P. 26332 - 26342
Published: Dec. 6, 2019
Optogenetics,
which
uses
visible
light
to
control
the
cells
genetically
modified
with
light-gated
ion
channels,
is
a
powerful
tool
for
precise
deconstruction
of
neural
circuitry
neuron-subtype
specificity.
However,
due
limited
tissue
penetration
light,
invasive
craniotomy
and
intracranial
implantation
tethered
optical
fibers
are
usually
required
in
vivo
optogenetic
modulation.
Here
we
report
mechanoluminescent
nanoparticles
that
can
act
as
local
sources
brain
when
triggered
by
brain-penetrant
focused
ultrasound
(FUS)
through
intact
scalp
skull.
Mechanoluminescent
be
delivered
into
blood
circulation
via
i.v.
injection,
recharged
400-nm
photoexcitation
superficial
vessels
during
circulation,
turned
on
FUS
emit
470-nm
repetitively
stimulation.
Unlike
conventional
"outside-in"
approaches
optogenetics
fiber
implantation,
our
method
provides
an
"inside-out"
approach
deliver
nanoscopic
emitters
intrinsic
circulatory
system
switch
them
off
at
any
time
location
interest
without
extravasation
minimally
interface.
Frontiers in Psychiatry,
Journal Year:
2021,
Volume and Issue:
11
Published: Jan. 27, 2021
Arousal
may
be
understood
on
a
spectrum,
with
excessive
sleepiness,
cognitive
dysfunction,
and
inattention
one
side,
wakeful
state
in
the
middle,
hypervigilance,
panic,
psychosis
other
side.
However,
historically,
concepts
of
arousal
stress
have
been
challenging
to
define
as
measurable
experimental
variables.
Divergent
efforts
study
these
subjects
given
rise
several
disciplines,
including
neurobiology,
neuroendocrinology,
neuroscience.
We
discuss
technological
advancements
that
chronologically
led
our
current
understanding
system,
focusing
multifaceted
nucleus
locus
coeruleus.
share
contemporary
perspective
hypotheses
others
context
capabilities
future
developments
will
required
move
forward
this
area
research.
Nature Communications,
Journal Year:
2020,
Volume and Issue:
11(1)
Published: Aug. 25, 2020
Abstract
Brain-machine
interfaces
are
promising
tools
to
restore
lost
motor
functions
and
probe
brain
functional
mechanisms.
As
the
number
of
recording
electrodes
has
been
exponentially
rising,
signal
processing
capability
brain–machine
is
falling
behind.
One
key
bottlenecks
that
they
adopt
conventional
von
Neumann
architecture
with
digital
computation
fundamentally
different
from
working
principle
human
brain.
In
this
work,
we
present
a
memristor-based
neural
analysis
system,
where
bio-plausible
characteristics
memristors
utilized
analyze
signals
in
analog
domain
high
efficiency.
proof-of-concept
demonstration,
memristor
arrays
used
implement
filtering
identification
epilepsy-related
signals,
achieving
accuracy
93.46%.
Remarkably,
our
system
shows
nearly
400×
improvements
power
efficiency
compared
state-of-the-art
complementary
metal-oxide-semiconductor
systems.
This
work
demonstrates
feasibility
using
for
high-performance
next-generation
interfaces.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(49)
Published: Oct. 4, 2021
Organic
electrochemical
transistors
(OECTs)
are
presently
a
focus
of
intense
research
and
hold
great
potential
in
expanding
the
horizons
bioelectronics
industry.
The
notable
characteristics
OECTs,
including
their
electrolyte-gating,
which
offers
intimate
interfacing
with
biological
environments,
aqueous
stability,
make
them
particularly
suitable
to
be
operated
within
living
organism
(in
vivo).
Unlike
existing
vivo
bioelectronic
devices,
mostly
based
on
rigid
metal
electrodes,
OECTs
form
soft
mechanical
contact
milieu
ensure
high
signal-to-noise
ratio
because
powerful
amplification
capability.
Such
features
desirable
for
wide
range
applications,
electrophysiological
recordings,
neuron
stimulation,
neurotransmitter
detection,
regulation
plant
processes
vivo.
In
this
review,
systematic
compilation
applications
is
presented
that
addressed
by
OECT
technology.
First,
operating
mechanisms,
device
design
materials
principles
examined,
then
multiple
examples
provided
from
literature
while
identifying
unique
properties
enable
application
progress.
Finally,
one
critically
looks
at
future
technology
applications.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(11)
Published: Jan. 11, 2022
Human
induced
pluripotent
stem
cell
derived
brain
organoids
have
shown
great
potential
for
studies
of
human
development
and
neurological
disorders.
However,
quantifying
the
evolution
electrical
properties
during
is
currently
limited
by
measurement
techniques,
which
cannot
provide
long-term
stable
3D
bioelectrical
interfaces
with
developing
organoids.
Here,
a
cyborg
organoid
platform
reported,
in
"tissue-like"
stretchable
mesh
nanoelectronics
are
designed
to
match
mechanical
be
folded
organogenetic
process
progenitor
or
cells,
distributing
electrode
arrays
across
The
tissue-wide
integrated
show
no
interruption
development,
adapt
volume
morphological
changes
organogenesis,
contacts
neurons
within
development.
seamless
noninvasive
coupling
electrodes
enables
stable,
continuous
recording
captures
emergence
single-cell
action
potentials
from
early-stage
