ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(34)
Published: Sept. 5, 2024
Abstract
In
this
study,
silver
nanoparticles
(AgNPs)
were
in‐situ
synthesized
in
silk
sericin/poly(vinyl
alcohol)
(SS/PVA)
mixtures
by
an
easy
one‐step
synthesis
method
with
the
presence
of
ultraviolet
(UV)
radiation.
Then,
SS/PVA
composite
membranes
containing
AgNPs
obtained
solvent
casting
method.
The
chemical
structures
investigated
fourier‐transform
infrared
spectroscopy
(FTIR)
and
results
showed
that
a
mixture
sericin
PVA.
morphological
features
field
emission
scanning
electron
microscopy
(FE‐SEM)
it
was
seen
have
heterogeneous
structures.
Energy
dispersive
(EDS)
analysis
revealed
contain
carbon,
oxygen,
nitrogen,
sulfur
silver.
X‐ray
diffractometer
(XRD)
thermogravimetric
(TGA)
analyses
also
proved
structure
membranes.
antibacterial
activities
on
Staphylococcus
aureus
Escherichia
coli
bacteria
disk
diffusion
test
liquid
culture
medium
incubation.
It
found
5
10
mM
quite
high
activity
both
types
bacteria.
functional
capacity
to
be
used
biomedical
applications
such
as
wound
care
materials.
International Journal of Biological Macromolecules,
Journal Year:
2024,
Volume and Issue:
278, P. 134977 - 134977
Published: Aug. 24, 2024
Antibiotic
resistance
(ABR)
poses
a
universal
concern
owing
to
the
widespread
use
of
antibiotics
in
various
sectors.
Nanotechnology
emerges
as
promising
solution
combat
ABR,
offering
targeted
drug
delivery,
enhanced
bioavailability,
reduced
toxicity,
and
stability.
This
comprehensive
review
explores
concepts
antibiotic
resistance,
its
mechanisms,
multifaceted
approaches
ABR.
The
provides
an
in-depth
exploration
polymeric
nanoparticles
advanced
delivery
systems,
focusing
on
strategies
for
targeting
microbial
infections
contributing
fight
against
Nanoparticles
revolutionize
antimicrobial
approaches,
emphasizing
passive
active
targeting.
role
molecules,
including
small
peptides,
proteins,
carbohydrates,
stimuli-responsive
is
being
explored
recent
research
works.
complex
comprehension
mechanisms
ABR
strategic
nanotechnology
present
avenue
advancing
tactics,
ensuring
treatment
efficacy,
minimizing
toxic
effects,
mitigating
development
Polymeric
nanoparticles,
derived
from
natural
or
synthetic
polymers,
are
crucial
overcoming
Natural
polymers
like
chitosan
alginate
exhibit
inherent
antibacterial
properties,
while
such
polylactic
acid
(PLA),
polyethylene
glycol
(PEG),
polycaprolactone
(PCL)
can
be
engineered
specific
effects.
study
valuable
source
information
researchers,
healthcare
professionals,
policymakers
engaged
urgent
quest
overcome
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 29, 2024
Abstract
The
leading
cause
of
increased
mortality
rates
is
infections
from
implanted
medical
devices,
with
catheters
accounting
for
more
than
80%
these
infections.
Polypropylene
(PP)
composites
antimicrobial
properties
were
developed
by
adding
binary
mixed
oxide
(CuO-TiO
2
).
outcomes
demonstrated
that
the
spreading
and
encapsulation
CuO-TiO
particles
in
PP
matrix
was
much
better
incorporation
PP-g-MAH
compatibilizer.
Matrix
crystallinity
affected
addition
compatibilizers,
amount
,
heat
treatments.
synergy
effect
as
agents
analyzed.
antibacterial
efficacy's
reliance
on
elucidated
relation
various
treatments,
compatibilizer,
.
made
oxides
(e.g.,
CuO
TiO
)
3
wt%
processed
a
low
degree
material’s
capability
effectively
rendering
plausible
species
•O
2−
•OH
−
Cu
2+
excellent
efficacy
towards
Escherichia
coli
(
E.
coli)
Staphylococcus
aureus
S.
This
innovative
composite,
-PP,
offers
new
perspectives
managing
bloodstream
associated
catheter
use.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(29)
Published: May 2, 2024
Abstract
Polymeric
materials
with
antibacterial
properties
hold
great
promise
for
combating
multidrug‐resistant
bacteria,
which
pose
a
significant
threat
to
public
health.
However,
the
synthesis
of
most
polymers
typically
involves
complicated
and
time‐consuming
procedures.
In
this
study,
we
demonstrate
simple
efficient
strategy
synthesizing
functional
poly(vinylpyridinium
salt)s
via
pyridinium‐yne
click
polymerization.
This
polymerization
could
proceed
high
atom
economy
under
mild
conditions
without
any
external
catalyst,
yielding
soluble
thermally
stable
satisfactory
molecular
weights
well‐defined
structures
in
excellent
yields.
Additionally,
incorporation
luminescent
units
such
as
fluorene,
tetraphenylethylene,
triphenylamine
into
polymer
backbone
confers
aggregation‐enhanced
emission
upon
resulting
polymers,
rendering
them
suitable
bacterial
staining.
Moreover,
existence
pyridinium
salt
imparts
intrinsic
activity
against
bacteria
enabling
effectively
inhibit
wound
infection
significantly
expedite
healing
process.
work
not
only
provides
an
method
prepare
but
also
opens
up
possibility
various
applications
healthcare
other
fields.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(29)
Published: May 2, 2024
Abstract
Polymeric
materials
with
antibacterial
properties
hold
great
promise
for
combating
multidrug‐resistant
bacteria,
which
pose
a
significant
threat
to
public
health.
However,
the
synthesis
of
most
polymers
typically
involves
complicated
and
time‐consuming
procedures.
In
this
study,
we
demonstrate
simple
efficient
strategy
synthesizing
functional
poly(vinylpyridinium
salt)s
via
pyridinium‐yne
click
polymerization.
This
polymerization
could
proceed
high
atom
economy
under
mild
conditions
without
any
external
catalyst,
yielding
soluble
thermally
stable
satisfactory
molecular
weights
well‐defined
structures
in
excellent
yields.
Additionally,
incorporation
luminescent
units
such
as
fluorene,
tetraphenylethylene,
triphenylamine
into
polymer
backbone
confers
aggregation‐enhanced
emission
upon
resulting
polymers,
rendering
them
suitable
bacterial
staining.
Moreover,
existence
pyridinium
salt
imparts
intrinsic
activity
against
bacteria
enabling
effectively
inhibit
wound
infection
significantly
expedite
healing
process.
work
not
only
provides
an
method
prepare
but
also
opens
up
possibility
various
applications
healthcare
other
fields.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(24), P. 3492 - 3492
Published: Dec. 14, 2024
A
series
of
hydrophilic
copolymers
were
prepared
using
2-hydroxyethyl
methacrylate
(HEMA)
and
itaconic
acid
(IA)
from
free
radical
polymerization
at
different
feed
monomer
ratios
ammonium
persulfate
(APS)
initiators
in
water
70
°C.
The
herbicide
2,4-dichlorophenoxy
acetic
(2,4-D)
was
grafted
to
Poly(HEMA-co-IA)
by
a
condensation
reaction.
hydrolysis
the
polymeric
release
system,
Poly(HEMA-co-IA)-2,4-D,
demonstrated
that
an
aqueous
phase
depends
on
system’s
pH
value
character.
In
addition,
swelling
behavior
(Wt%)
studied
values
Liquid-phase
Polymer
Retention
(LPR)
ultrafiltration
system.
conjugates
follows
first-order
kinetic,
showing
higher
kinetic
constants
as
increases.
base-catalyzed
reaction
zero-order
where
basic
medium
acts
catalyst,
accelerating
rate
differences
rates
found
for
hydrogel
can
be
correlated
with
difference
their
capacity,
generally
increases
increase
capacity
solution
values.
study
process
revealed
all
samples
distilled
10
are
representative
agricultural
systems.
It
showed
kinetics
absorption
conforms
parameters
hydrogels
applications,
which
supports
potential
these
purposes.
Journal of Applied Polymer Science,
Journal Year:
2024,
Volume and Issue:
141(34)
Published: June 5, 2024
Abstract
Polymers
with
ammonium
or
phosphonium
salts
have
been
known
to
possess
antimicrobial
activity.
Herein,
synthesis
of
poly(vinylbenzyl
chloride‐
co
‐acrylonitrile)
(P(VBC‐
‐AN))
is
reported
via
a
free
radical
polymerization
by
employing
AIBN
as
initiator.
The
copolymer
was
then
quaternized
using
triethylamine,
triphenylphosphine,
and
tributylphosphine.
triphenylphosphonium
salt
selected
for
further
modification,
on
which
the
polyacrylonitrile
chains
were
reacted
two
different
amines:
tris
(2‐aminoethylamine)
diethylenetriamine.
copolymerization,
quaternization,
amination
reactions
confirmed
spectroscopic
morphologic
analysis
besides
thermal
features.
water
uptake
modified
polymers
investigated,
where
tributylphosphonium
(KH4)
showed
highest
capacity
(41
g/g).
assay
findings
demonstrated
that
all
evaluated
copolymers
displayed
wide
range
activity
against
multidrug
resistant
human
pathogens,
example
polymer
coded
KH4
containing
growth
inhibition
rates
Staphylococcus
aureus
epidermidis
populations,
recorded
87%
72%;
respectively.
anti‐inflammatory
revealed
protection
effect
erythrocyte
membrane
lysis.
Antioxidant
results
1,1‐diphenyl‐2‐picryl
hydrazyl
scavenging
activities.
Among
studied
copolymers,
aminated
(KH6)
exhibited
activity,
IC50
~
120
μg/mL.
Arab Journal of Basic and Applied Sciences,
Journal Year:
2024,
Volume and Issue:
31(1), P. 325 - 344
Published: June 18, 2024
The
swift
increase
in
antimicrobial
resistance
across
the
world
presents
a
significant
challenge,
further
raised
by
insufficient
advancement
design
of
new
agents.
Over
past
two
decades,
variety
sources
has
been
investigated
for
generating
antimicrobials.
Recently,
polymers
(APs)
have
emerged
as
multifaceted
agents,
displaying
effectiveness
against
range
pathogens
such
bacteria,
fungi,
and
viruses.
Their
notable
biocompatibility,
efficiency,
multifunctionality,
ease
modification
make
them
focal
point
research.
APs
are
particularly
valued
their
structural
versatility,
which
allows
integration
functional
groups.
Polymer
functionalization
does
not
only
enhance
or
introduce
properties
but
also
maintains
high
levels
biocompatibility.
This
review
reveals
broad
breadth
APs,
can
be
potentially
used
antiseptics,
food
packaging,
biomedical
sector,
e.g.
medical
implants'
coatings.
In
laboratory
settings,
shown
promising
therapeutic
effects,
however
there
remains
an
urgent
need
computational
biology
to
fully
understand
behaviour
stability.
Recombinant
biotechnological
approaches
essential
facilitating
production
require
industrial
collaboration
effectively
optimize
scale
up
these
processes.