Heliyon,
Journal Year:
2024,
Volume and Issue:
10(5), P. e27433 - e27433
Published: March 1, 2024
Parkinson's
disease
is
a
neurodegenerative
condition
defined
by
the
progressive
death
of
dopaminergic
neurons
in
brain.
The
diagnosis
often
uses
time-consuming
clinical
evaluations
and
subjective
assessments.
Electrochemical
Impedance
Spectroscopy
(EIS)
useful
technique
for
electroanalytical
devices
due
to
its
label-free
performance,
in-situ
measurements,
low
cost.
development
reliable
diagnostic
tools
can
be
significantly
enhanced
exploring
novel
techniques
like
faradaic
non-faradaic
EIS
detection
methods.
These
have
ability
identify
specific
biomarkers
or
changes
electrochemical
properties
linked
disease,
allowing
an
early
accurate
diagnosis.
Faradaic
methods
utilize
redox
processes
on
electrode
surface,
while
rely
charge
transfer
capacitive
properties.
electrical
as
indicators
measuring
impedance
at
different
frequencies.
By
combining
both
approaches,
it
may
possible
obtain
comprehensive
understanding
occurring
patients.
This
lead
more
effective
potentially
opening
up
new
avenues
personalized
treatment
strategies.
review
explores
current
research
approaches
diagnosing
using
spectroscopy.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 9, 2025
Early
and
precise
diagnosis
of
neurodegenerative
disorders
like
Alzheimer's
(AD)
Parkinson's
(PD)
is
crucial
for
slowing
their
progression
enhancing
patient
outcomes.
Exosomal
microRNAs
(miRNAs)
are
emerging
as
promising
biomarkers
due
to
ability
reflect
the
diseases'
pathology,
yet
low
abundance
poses
significant
detection
hurdles.
This
review
article
delves
into
burgeoning
field
electrochemical
biosensors,
designed
exosomal
miRNA
biomarkers.
Electrochemical
biosensors
offer
a
compelling
solution,
combining
sensitivity
required
detect
low-abundance
with
specificity
needed
discern
profiles
distinctive
neural
pathological
states.
We
explore
operational
principles
these
including
transduction
mechanisms
that
facilitate
detection.
The
also
summarizes
advancements
in
nanotechnology,
signal
enhancement,
bioreceptor
anchoring,
microfluidic
integration
improve
sensor
accuracy.
evidence
use
disease
analyzed,
focusing
on
clinical
impact,
diagnostic
precision,
obstacles
faced
practical
applications.
Their
potential
point-of-care
testing
regulatory
considerations
market
entry
discussed.
Looking
toward
future,
highlights
forthcoming
innovations
might
revolutionize
early
processes.
impressive
sensitivity,
specificity,
compatibility,
track
become
instrumental
diseases,
possibly
transforming
care
prognosis.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: July 15, 2022
The
aim
of
this
work
was
to
provide
a
novel
approach
designing
and
synthesizing
nanocomposite
with
significant
biocompatibility,
biodegradability,
stability
in
biological
microenvironments.
Hence,
the
porous
ultra-low-density
materials,
metal-organic
frameworks
(MOFs),
have
been
considered
MIL-125(Ti)
has
chosen
due
its
distinctive
characteristics
such
as
great
biocompatibility
good
biodegradability
immobilized
on
surface
reduced
graphene
oxide
(rGO).
Based
results,
presence
transition
metal
complexes
next
drug
not
only
can
reinforce
structure
by
preparing
π-π
interaction
between
ligands
but
also
enhance
efficiency
preventing
spontaneous
release.
effect
utilizing
complex
beside
(Doxorubicin
(DOX))
loading,
release,
antibacterial
activity
prepared
nanocomposites
P.
aeruginosa
S.
aureus
model
bacterium
investigated
results
revealed
that
theory
leads
increasing
about
200%
activity.
In
addition,
uptake,
release
drug,
relative
cell
viabilities
(in
vitro
vivo)
nanomaterials
biomaterials
discussed.
collected
data,
median
size
156.2
nm,
their
PBS
DMEM
+
10%
FBS
screened
after
2.880
min,
nanocomposite's
reached
242.3
516
nm
respectively.
MTT
demonstrated
immobilizing
PdL
DOX
an
increase
more
than
15%
viability.
It
is
noticeable
AST:ALT
result
under
1.5.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: June 8, 2022
Abstract
Doxorubicin
(DOX)
is
a
potent
anti-cancer
agent
and
there
have
been
attempts
in
developing
nanostructures
for
its
delivery
to
tumor
cells.
The
nanoparticles
promote
cytotoxicity
of
DOX
against
cells
turn,
they
reduce
adverse
impacts
on
normal
safety
profile
an
important
topic
recently,
the
green
synthesis
has
obtained
much
attention
preparation
biocompatible
carriers.
In
present
study,
we
prepared
layered
double
hydroxide
(LDH)
doxorubicin
delivery.
Cu–Al
LDH
were
synthesized
by
combining
Cu(NO
3
)
2
·3H
O
Al(NO
·9H
O,
then,
autoclave
at
110.
modification
with
Plantago
ovata
(PO)
was
performed
finally,
loaded
onto
nanostructures.
FTIR,
XRD,
FESEM
employed
characterization
nanoparticles,
confirming
their
proper
synthesis.
drug
release
study
revealed
pH-sensitive
(highest
pH
5.5)
prolonged
due
PO
modification.
Furthermore,
MTT
assay
improved
biocompatibility
upon
showed
controlled
low
towards
wide
range
cell
lines.
CLSM
demonstrated
cellular
uptake
both
HEK-293
MCF-7
lines;
however,
results
promising
internalizations
rather
than
vivo
experiment
highlighted
histopathological
structure
kidneys
no
side
effects
further
potential
as
nano-scale
systems.
Finally,
antibacterial
test
toxicity
PO-modified
Gram-positive
-negative
bacteria.
Physical Chemistry Chemical Physics,
Journal Year:
2024,
Volume and Issue:
26(6), P. 5106 - 5114
Published: Jan. 1, 2024
An
innovative
biosensing
fabrication
strategy
has
been
demonstrated
for
the
first
time
using
a
quartz
tuning
fork
to
develop
practical
immunosensor
sensitive,
selective
and
analysis
of
alpha
synuclein
protein.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(13), P. 8810 - 8818
Published: Jan. 1, 2024
Parkinson's
disease
(PD),
the
second
most
frequent
neurodegenerative
illness,
is
a
neurological
ailment
that
produces
unintentional
or
uncontrolled
body
movements,
which
should
be
diagnosed
in
its
early
stages
to
hinder
progression.
Analytica Chimica Acta,
Journal Year:
2024,
Volume and Issue:
1304, P. 342559 - 342559
Published: March 30, 2024
α-Synuclein
(αS)
aggregation
is
the
main
neurological
hallmark
of
a
group
neurodegenerative
disorders,
collectively
referred
to
as
synucleinopathies,
which
Parkinson's
disease
(PD)
most
prevalent.
αS
oligomers
are
elevated
in
cerebrospinal
fluid
(CSF)
PD
patients,
standing
biomarker
for
diagnosis.
However,
methods
early
detection
still
lacking.
We
have
recently
identified
amphipathic
22-residue
peptide
PSMα3
high-affinity
binder
toxic
oligomers.
displayed
excellent
selectivity
and
reproducibility,
binding
with
affinities
low
nanomolar
range
without
detectable
cross-reactivity
functional
monomeric
αS.
In
this
work,
we
leveraged
these
unique
properties
design
plasmonic-based
biosensor
direct
under
label-free
conditions.
describe
integration
lab-on-a-chip
plasmonic
platform
suitable
point-of-care
measurements
CSF
samples
real-time
at
an
affordable
cost,
providing
innovative
diagnosis
clinic.
Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: May 13, 2024
Abstract
The
use
of
nanomaterials
in
medicine
offers
multiple
opportunities
to
address
neurodegenerative
disorders
such
as
Alzheimer's
and
Parkinson's
disease.
These
diseases
are
a
significant
burden
for
society
the
health
system,
affecting
millions
people
worldwide
without
sensitive
selective
diagnostic
methodologies
or
effective
treatments
stop
their
progression.
In
this
sense,
gold
nanoparticles
is
promising
tool
due
unique
properties
at
nanometric
level.
They
can
be
functionalized
with
specific
molecules
selectively
target
pathological
proteins
Tau
α-synuclein
Alzheimer’s
Parkinson’s
disease,
respectively.
Additionally,
these
used
biomarkers,
wherein
play
key
role
enhancing
signal,
even
low
concentrations
present
biological
samples
blood
cerebrospinal
fluid,
thus
enabling
an
early
accurate
diagnosis.
On
other
hand,
act
drug
delivery
platforms,
bringing
therapeutic
agents
directly
into
brain,
improving
treatment
efficiency
precision,
reducing
side
effects
healthy
tissues.
However,
despite
exciting
potential
nanoparticles,
it
crucial
challenges
issues
associated
medical
field
before
they
widely
applied
clinical
settings.
It
critical
ensure
safety
biocompatibility
context
central
nervous
system.
Therefore,
rigorous
preclinical
studies
needed
assess
efficacy
feasibility
strategies
patients.
Since
there
scarce
sometimes
contradictory
literature
about
context,
main
aim
review
discuss
analyze
current
state-of-the-art
relation
delivery,
diagnosis,
therapy
well
recent
research
preclinical,
clinical,
emerging
areas.
Graphical
Advanced Energy and Sustainability Research,
Journal Year:
2022,
Volume and Issue:
3(9)
Published: June 15, 2022
Piezoelectric
energy
harvesters
(PEHs)
have
the
potential
to
power
low‐power
electronic
devices
and
can
advance,
self‐powered,
autonomous
electronics
next
level.
Conventional
ceramic‐based
piezoelectrics
various
properties
such
as
fragility,
rigidity,
toxicity,
high
density,
lack
of
design
flexibility
which
limit
their
use
in
more
flexible
environments.
A
ton
research
has
been
carried
out
published
on
novel
piezomaterials,
transduction
mechanisms,
analytical
models,
electrical
circuits
improve
aspects
PEHs.
Among
these
materials,
studies
polymeric
cellular
(or
foamed)
ferroelectrets
or
piezoelectrets
PEHs
grown
significantly
since
discovery.
Also,
very
limited
short
reviews
are
available
covering
only
few
aspects.
There
is
a
necessity
recognizing
past
present
advances
generation
technology
polymer
systems.
Herein,
broader
review
almost
all
conventional
recent
foam‐based
for
PEH
applications
summarized.
These
piezoelectric
systems
either
bulk,
composite,
layered,
film
form
be
fabricated,
depending
application
conditions,
different
polymers
groups,
mainly,
polyolefins,
polyester,
fluoropolymer,
others,
considered.
Their
future
perspectives
also
presented
discussed.