Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
In
this
study,
we
introduce
an
approach
for
synthesizing
polydopamine
(PDA)
through
the
controlled
oxidation
of
dopamine
using
metallic
copper.
Traditional
methods
PDA
synthesis
often
encounter
challenges
such
as
scalability,
reproducibility,
and
control
over
polymerization.
Our
utilizes
catalytic
properties
copper
in
presence
dissolved
oxygen
to
generate
reactive
species
(ROS)
without
additional
chemicals.
This
process
allows
precise
oxidation,
leading
reliable,
materials
cost-effective
upscalable
production.
We
investigated
reaction
kinetics
role
ROS
several
different
experimental
techniques.
results
demonstrate
that,
even
at
low
pH,
copper-assisted
method
produces
with
comparable
those
synthesized
conventional
means.
propose
a
mechanism
that
is
initiated
by
adsorption
onto
surface,
generation
various
which
act
oxidizing
agents
synthesis.
presents
advancement
scalable
production
PDA,
potential
applications
scientific
industrial
fields.
Small,
Journal Year:
2024,
Volume and Issue:
20(44)
Published: July 11, 2024
Transition
metal
selenides
(TMSs)
are
receiving
considerable
interest
as
improved
anode
materials
for
sodium-ion
batteries
(SIBs)
and
lithium-ion
(LIBs)
due
to
their
theoretical
capacity
excellent
redox
reversibility.
Herein,
ZIF-12
(zeolitic
imidazolate
framework)
structure
is
used
the
synthesis
of
Cu
European Polymer Journal,
Journal Year:
2024,
Volume and Issue:
209, P. 112892 - 112892
Published: March 4, 2024
Pyocyanin,
a
redox-active
secondary
metabolite
produced
by
Pseudomonas
aeruginosa,
serves
as
crucial
virulence
factor.
Detection
and
quantification
of
pyocyanin
can
aid
early
diagnosis
infection.
A
selective
sensitive
molecularly
imprinted
electrochemical
sensor
was
constructed
using
green
polymerization
technique
to
deposit
an
ultrathin
polydopamine
film
on
electrode
modified
with
gold
nanoparticles
chitosan.
Target
recognition
facilitated
specific
binding
sites
within
the
polymer
matrix
that
are
complementary
structure
pyocyanin.
Various
techniques,
including
cyclic
voltammetry,
impedance
spectroscopy,
square
wave
were
employed
characterize
behavior
sensor.
We
investigated
influence
fabrication
components,
chitosan
concentration,
monomer
electro-polymerization
conditions,
pH,
rebinding
time.
Demonstrating
high
degree
specificity
sensitivity,
showcased
broad
linear
detection
range
1–100
µM
low
limit
0.74
for
Moreover,
successfully
detected
in
real
bacterial
culture
samples,
exhibiting
recovery
spiked
standard
ranging
from
93
103
%.
The
displayed
satisfactory
stability
lasting
at
least
5
weeks.
demonstrated
sensor's
applicability
clinical
measurements
detecting
infected
burn
wounds
ex
vivo
porcine
skin
model.
Leveraging
synergistic
advantages
redox
window
detection,
presents
promising
approach
early-stage
infection
identification,
thus
contributing
enhanced
treatment
more
effective
healthcare
patients.
Biomacromolecules,
Journal Year:
2024,
Volume and Issue:
25(9), P. 5489 - 5511
Published: Aug. 28, 2024
Emerging
material
interest
in
bioelectronic
applications
has
highlighted
natural
melanin
and
its
derivatives
as
promising
alternatives
to
conventional
synthetic
conductors.
These
materials,
traditionally
noted
for
their
adhesive,
antioxidant,
biocompatible,
biodegradable
properties,
have
barely
been
used
conductors
due
extremely
low
electrical
activities.
However,
recent
studies
demonstrated
good
conductive
properties
materials
that
promote
electronic-ionic
hybrid
charge
transfer,
attributed
the
formation
of
an
extended
conjugated
backbone.
This
review
examines
multifunctional
focusing
on
chemical
electrochemical
synthesis
resulting
structure-property-function
relationship.
The
wide
range
will
also
be
presented
highlight
importance
potential
expand
into
new
design
concepts
high-performance
electronic
functional
materials.
concludes
by
addressing
current
challenges
utilizing
bioelectronics,
providing
a
perspective
future
developments.
The Analyst,
Journal Year:
2024,
Volume and Issue:
149(9), P. 2637 - 2646
Published: Jan. 1, 2024
Silver
nanoparticles
(AgNPs)
conjugated
with
polymers
are
well-known
for
their
powerful
and
effective
antimicrobial
properties.
In
particular,
the
incorporation
of
AgNPs
in
biocompatible
catecholamine-based
polymers,
such
as
polydopamine
(PDA),
has
recently
shown
promising
activity,
due
to
synergistic
effects
AgNPs,
silver(I)
ions
released
PDA.
this
study,
we
generated
AgNPs-PDA-patterned
surfaces
by
localised
electrochemical
depositions,
using
a
double
potentiostatic
method
Macromolecular Materials and Engineering,
Journal Year:
2024,
Volume and Issue:
310(1)
Published: Nov. 18, 2024
Abstract
Development
of
smart
drug
delivery
systems
(DDSs)
for
effective
delivering
drugs
to
targeted
areas
and
achieving
controlled
release
(CDR)
is
critical
cancer
chemotherapy.
The
purpose
this
study
synthesis
polydopamine
(PDA)
nanocapsules
analyze
the
adsorption
properties
doxorubicin
(DOX).
PDA
are
manufactured
using
hard
template
approach.
influence
various
parameters
such
as
pH,
time,
initial
DOX
content
on
process
investigated.
resulting
isotherm
consistent
with
Langmuir
isotherm,
indicating
that
homogenous,
uniform,
monolayer.
have
an
capacity
689.6
mg
g
−1
under
alkaline
conditions,
which
attributed
phenol
group
deprotonation
mechanism
electrostatic
repulsion.
kinetics
more
pseudo‐second‐order
model.
Furthermore,
raising
concentration
results
in
a
greatly
increased
due
larger
driving
force.
Among
several
can
pace
degree
loading
release,
local
pH
regarded
significant
environmental
component
processes.
Thus,
pH‐responsive
potential
usage
locations
aberrant
level,
tissue.
