Advanced Drug Delivery Reviews,
Journal Year:
2023,
Volume and Issue:
196, P. 114770 - 114770
Published: March 7, 2023
Ocular
diseases
seriously
affect
patients'
vision
and
life
quality,
with
a
global
morbidity
of
over
43
million
blindness.
However,
efficient
drug
delivery
to
treat
ocular
diseases,
particularly
intraocular
disorders,
remains
huge
challenge
due
multiple
barriers
that
significantly
the
ultimate
therapeutic
efficacy
drugs.
Recent
advances
in
nanocarrier
technology
offer
promising
opportunity
overcome
these
by
providing
enhanced
penetration,
increased
retention,
improved
solubility,
reduced
toxicity,
prolonged
release,
targeted
loaded
eyes.
This
review
primarily
provides
an
overview
progress
contemporary
applications
nanocarriers,
mainly
polymer-
lipid-based
treating
various
eye
highlighting
their
value
achieving
delivery.
Additionally,
covers
administration
routes,
as
well
prospective
future
developments
challenges
field
nanocarriers
for
diseases.
Journal of Nanobiotechnology,
Journal Year:
2025,
Volume and Issue:
23(1)
Published: Feb. 25, 2025
The
human
retina
is
a
fragile
and
sophisticated
light-sensitive
tissue
in
the
central
nervous
system.
Unhealthy
retinas
can
cause
irreversible
visual
deterioration
permanent
vision
loss.
Effective
therapeutic
strategies
are
restricted
to
treatment
or
reversal
of
these
conditions.
In
recent
years,
nanoscience
nanotechnology
have
revolutionized
targeted
management
retinal
diseases.
Pharmaceuticals,
theranostics,
regenerative
medicine,
gene
therapy,
prostheses
indispensable
for
interventions
been
significantly
advanced
by
nanomedical
innovations.
Hence,
this
review
presents
novel
insights
into
use
versatile
nanomaterial-based
nanocomposites
frontier
applications,
including
non-invasive
drug
delivery,
theranostic
contrast
agents,
nanoagents,
stem
cell-based
optogenetics
prostheses,
which
mainly
reported
within
last
5
years.
Furthermore,
progress,
potential
challenges,
future
perspectives
field
highlighted
discussed
detail,
may
shed
light
on
clinical
translations
ultimately,
benefit
patients
with
disorders.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Sept. 7, 2023
Abstract
Conjugated
polymer
films,
which
can
conduct
both
ionic
and
electronic
charges,
are
central
to
building
soft
sensors
actuators.
Despite
the
possible
interplay
between
light
absorption
mixed
conductivity
of
these
materials
in
aqueous
biological
media,
no
single
film
has
been
utilized
create
a
solar-switchable
organic
bioelectronic
circuit
that
relies
on
fully
reversible
redox
reaction-free
potentiometric
photodetection
current
modulation.
Here
we
demonstrate
by
an
electron
cation-transporting
reversibly
modulates
its
electrochemical
potential
electrolyte,
is
harnessed
design
n-type
photo-electrochemical
transistor
(n-OPECT).
By
controlling
intensity
incident
polymeric
gate
electrode,
generate
output
characteristics
mimic
modulation
channel
achieved
through
voltage
control.
The
micron-scale
n-OPECT
exhibits
high
signal-to-noise
ratio
excellent
sensitivity
low
intensities.
We
three
direct
applications
n-OPECT,
i.e.,
photoplethysmogram
recorder,
light-controlled
inverter
circuit,
light-gated
artificial
synapse,
underscoring
suitability
this
platform
for
myriad
biomedical
involve
changes.
Pharmaceuticals,
Journal Year:
2023,
Volume and Issue:
16(3), P. 474 - 474
Published: March 22, 2023
Sufficient
ocular
bioavailability
is
often
considered
a
challenge
by
the
researchers,
due
to
complex
structure
of
eye
and
its
protective
physiological
mechanisms.
In
addition,
low
viscosity
drops
resulting
short
residence
time
further
contribute
observed
drug
concentration
at
target
site.
Therefore,
various
delivery
platforms
are
being
developed
enhance
bioavailability,
provide
controlled
sustained
release,
reduce
number
applications,
maximize
therapy
outcomes.
Solid
lipid
nanoparticles
(SLNs)
nanostructured
carriers
(NLCs)
exhibit
all
these
benefits,
in
addition
biocompatible,
biodegradable,
susceptible
sterilization
scale-up.
Furthermore,
their
successive
surface
modification
contributes
prolonged
(by
adding
cationic
compounds),
enhanced
penetration,
improved
performance.
The
review
highlights
salient
characteristics
SLNs
NLCs
concerning
delivery,
updates
research
progress
this
area.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(23)
Published: Feb. 21, 2024
Medical
microrobotics
is
an
emerging
field
to
revolutionize
clinical
applications
in
diagnostics
and
therapeutics
of
various
diseases.
On
the
other
hand,
mobile
has
important
obstacles
pass
before
translation.
This
article
focuses
on
these
challenges
provides
a
roadmap
medical
microrobots
enable
their
use.
From
concept
"magic
bullet"
physicochemical
interactions
complex
biological
environments
applications,
there
are
several
translational
steps
consider.
Clinical
translation
only
possible
with
close
collaboration
between
experts
researchers
address
technical
microfabrication,
safety,
imaging.
The
application
potential
can
be
materialized
by
designing
that
solve
current
main
challenges,
such
as
actuation
limitations,
material
stability,
imaging
constraints.
strengths
weaknesses
progress
discussed
for
near
future
outlined.
Accounts of Chemical Research,
Journal Year:
2024,
Volume and Issue:
57(9), P. 1398 - 1410
Published: April 23, 2024
ConspectusElectrical
neuromodulation
has
achieved
significant
translational
advancements,
including
the
development
of
deep
brain
stimulators
for
managing
neural
disorders
and
vagus
nerve
seizure
treatment.
Optoelectronics,
in
contrast
to
wired
electrical
systems,
offers
leadless
feature
that
guides
multisite
high
spatiotemporal
system
targeting,
ensuring
specificity
precision
therapies
known
as
"photoelectroceuticals".
This
Account
provides
a
concise
overview
developments
novel
optoelectronic
nanomaterials
are
engineered
through
innovative
molecular,
chemical,
nanostructure
designs
facilitate
interfacing
with
efficiency
minimally
invasive
implantation.This
outlines
progress
made
both
within
our
laboratory
across
broader
scientific
community,
particular
attention
implications
materials
innovation
strategies,
studying
bioelectrical
activation
methods,
applications
regenerative
medicine.
In
innovation,
we
highlight
nongenetic,
biocompatible,
approach
spans
various
length
scales,
from
single
neurons
tissues
using
nanosized
particles
monolithic
membranes.
Furthermore,
discussion
exposes
critical
unresolved
questions
field,
mechanisms
interaction
at
nanobio
interface,
cellular
or
tissue
integration
into
existing
networks
modulation.
addition,
present
challenges
pressing
needs
long-term
stability
biocompatibility,
scalability
clinical
applications,
noninvasive
monitoring
control
systems.In
addressing
field
interfaces,
particularly
envisage
promising
strategic
directions
could
significantly
advance
this
burgeoning
domain.
involves
deeper
theoretical
understanding
nanobiointerfaces,
where
simulations
experimental
validations
on
how
interact
spatiotemporally
biological
systems
crucial.
The
more
durable
is
vital
prolonged
dynamic
ability
manipulate
activity
spatial
resolution,
paves
way
targeting
individual
specific
circuits.
Additionally,
integrating
these
interfaces
advanced
possibly
leveraging
artificial
intelligence
machine
learning
algorithms
programming
dynamically
responsive
designs,
ease
implementation
stimulation
recording.
These
innovations
hold
potential
introduce
treatment
modalities
wide
range
neurological
systemic
disorders.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(35)
Published: Aug. 28, 2024
The
mammalian
retina
is
considered
an
autonomous
circuit,
yet
work
dating
back
to
Ramon
y
Cajal
indicates
that
it
receives
inputs
from
the
brain.
How
such
affect
retinal
processing
has
remained
unknown.
We
confirmed
brain-to-retina
projections
of
histaminergic
neurons
mouse
hypothalamus.
Histamine
application
ex
vivo
altered
activity
various
ganglion
cells
(RGCs),
including
direction-selective
RGCs
gained
responses
high
motion
velocities.
These
results
were
reproduced
in
with
optic
tract
recordings
where
retinopetal
axons
activated
chemogenetically.
Such
changes
could
improve
vision
fast-moving
objects
(e.g.,
while
running),
which
fits
known
increased
during
arousal.
An
antihistamine
drug
reduced
optomotor
high-speed
moving
stimuli
freely
mice.
In
humans,
same
nonuniformly
modulated
visual
sensitivity
across
field,
indicating
evolutionary
conserved
function
system.
Our
findings
expose
a
previously
unappreciated
role
for
modulating
function.
ACS Applied Bio Materials,
Journal Year:
2024,
Volume and Issue:
7(4), P. 2070 - 2085
Published: March 15, 2024
Retinal
diseases,
such
as
age-related
macular
degeneration,
diabetic
retinopathy,
and
retinoblastoma,
stand
the
leading
causes
of
irreversible
vision
impairment
blindness
worldwide.
Effectively
administering
drugs
for
retinal
diseases
poses
a
formidable
challenge
due
to
presence
complex
ocular
barriers
elimination
mechanisms.
Over
time,
various
approaches
have
been
developed
fabricate
drug
delivery
systems
improving
therapy
including
virus
vectors,
lipid
nanoparticles,
polymers.
However,
conventional
nanocarriers
encounter
issues
related
controllability,
efficiency,
safety
in
retina.
Therefore,
development
smart
effective
or
more
invasive
long-term
treatment
remains
desirable
goal.
Recently,
surfaced
intelligent
design
nanocarriers,
leveraging
specific
responses
external
internal
triggers
enabling
multiple
functions
topical
administration,
prolonged
release,
site-specific
delivery.
This
Review
provides
an
overview
prevalent
pathologies
pharmacotherapies
enhance
understanding
diseases.
It
also
surveys
recent
developments
strategies
employed
disease.
Finally,
challenges
potential
clinical
therapeutic
applications
are
discussed
inspire
next
generation
nanocarriers.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(12), P. 19892 - 19912
Published: Nov. 21, 2022
Nanomaterials
at
the
neural
interface
can
provide
bridge
between
bioelectronic
devices
and
native
tissues
achieve
bidirectional
transmission
of
signals
with
our
brain.
Photoactive
nanomaterials,
such
as
inorganic
polymeric
nanoparticles,
nanotubes,
nanowires,
nanorods,
nanosheets
or
related,
are
being
explored
to
mimic,
modulate,
control,
even
substitute
functions
cells
tissues.
They
show
great
promise
in
next
generation
technologies
for
excellent
spatial
temporal
accuracy.
In
this
review,
we
highlight
discovery
understanding
these
nanomaterials
precise
control
an
individual
neuron,
biomimetic
retinal
prosthetics
vision
restoration,
repair
regeneration
central
peripheral
tissues,
wireless
deep
brain
stimulation
treatment
movement
mental
disorders.
The
most
intriguing
feature
is
that
photoactive
materials
fit
within
a
minimally
invasive
strategy
trigger
flux
neurologically
active
molecules
thus
influences
cell
membrane
potential
key
signaling
molecule
related
gene
expression.
particular,
focus
on
worthy
pathways
photosignal
transduction
nanomaterial–neural
behavior
biological
system.
Finally,
describe
challenges
how
design
specific
neurological
There
also
some
open
issues
long-term
stability
signal
efficiency
further
explore
clinical
practice.