Journal of Inorganic and Organometallic Polymers and Materials,
Journal Year:
2023,
Volume and Issue:
33(9), P. 2906 - 2923
Published: June 5, 2023
Abstract
In
the
current
study,
a
decahedron-like
silver
nanostructure
(D-AgNs)
was
successfully
created
in
an
aqueous
solution
presence
of
Polyvinylpyrrolidone
(PVP)
as
capping
agent
using
gamma-radiolysis
approach
without
use
reducing
agent.
The
synthesized
D-AgNs
were
characterized
various
analytical
tools
such
UV–Vis.
spectroscopy,
SEM,
XRD,
HRTEM,
EDX
and
FTIR.
absorption
spectra
showed
considerable
surface
Plasmon
resonance
(SPR)
bands
at
350–600
nm,
indicating
that
colloidal
had
been
synthesized.
HRTEM
image
demonstrates
well-dispersed
uniformly
decahedral
shapes
are
well
separated
from
each
other.
produced
nanoparticles
effectively
stabilized
by
PVP
through
interactions,
confirmed
FTIR
anlaysis.
synthesis
gamma
radiation
accomplished,
addition
its
antimicrobial
potential,
antibiofilm
activity,
effect
UV
rays
assessed.
addition,
protein
leakage
assays
SEM
imaging
employed
to
analyze
reaction’s
mechanism.
A
wide
variety
bacteria,
including
S.
aureus
,
P.
aeruginosa
C.
albicans
deactivated
D-AgNs.
assay,
inhibited
biofilm
formation
(89.58%),
E.
coli
(80.35%),
aureginosa
(78.45%).
After
investigating
on
growth
curve
aureus,
we
concluded
affect
reduced
be
0.125.
holes
cell
membrane
is
explained
fact
amount
cellular
released
bacteria
directly
proportional
concentration
D-AgNs,
which
determined
259.25
µg/ml
equal
1.0
mg/mL.
Antibiotics,
Journal Year:
2023,
Volume and Issue:
12(5), P. 924 - 924
Published: May 17, 2023
The
development
of
biocompatible
nanomaterials
that
interface
with
human
skin
and
tissue
is
critical
for
advancing
prosthetics
other
therapeutic
medical
needs.
In
this
perspective,
the
nanoparticles
cytotoxicity
antibiofilm
properties
biocompatibility
characteristics
are
important.
Metallic
silver
(Ag)
exhibits
good
biocompatibility,
but
it
often
challenging
to
integrate
into
a
nanocomposite
without
compromising
its
optimal
applications.
study,
new
polymer
nanocomposites
(PNCs)
ultra-low
filling
content
(0.0023-0.046
wt%)
Ag
nanoplates
were
manufactured
tested.
activity
different
composites
polypropylene
(PP)
matrix
examined.
At
first,
PNCs
surface
analyzed
by
means
AFM
(atomic
force
microscopy)
phase
contrast
evaluation
FTIR
(Fourier-transform
infrared
spectroscopy)
study
distribution.
Subsequently,
growth
biofilms
assessed
MTT
assay
protocol
detection
nitric
oxide
radicals.
Antibacterial
activities
measured
against
Gram-positive
bacteria
(Staphylococcus
aureus)
Gram-negative
(K.
pneumoniae).
exhibited
although
they
did
not
inhibit
regular
planktonic
bacterial
growth.
Moreover,
cytotoxic
mammalian
cells
induce
significant
immune
response.
These
features
reveal
potential
developed
in
usage
fabrication
smart
structures
biomedical
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(3), P. 179 - 179
Published: Jan. 23, 2025
Hydroxyapatite
(HAp)
is
widely
used
in
biomedical
applications
due
to
its
biocompatibility,
osteoconductivity,
and
bioactivity.
However,
low
mechanical
strength,
tendency
toward
rapid
corrosion,
lack
of
bactericidal
properties
present
significant
limitations
applications.
This
study
aimed
improve
the
HAp
by
reinforcing
it
with
multi-walled
carbon
nanotubes
(MWCNTs)
doping
silver
nanoparticles
(AgNPs)
silver-core
selenium-shell
(Ag@SeNPs).
Ocimum
basilicum
extract
was
as
both
a
reducing
stabilizing
agent
synthesis
using
an
environmentally
friendly
non-toxic
method
alternative
traditional
methods.
The
synthesized
HAp,
HAp/MWCNT,
Ag-HAp/MWCNT,
Ag@Se-HAp/MWCNT
nanocomposites
were
characterized
TEM,
SEM,
XRD,
Raman
spectroscopy,
BET
analysis.
analysis
showed
reduction
surface
area
from
109.4
m2/g
for
pure
71.4
m2/g,
47.5
35.3
HAp/MWCNTs,
Ag-
Ag@Se-HAp/MWCNTs,
respectively.
Antimicrobial
activities
against
P.
aeruginosa,
E.
coli,
S.
aureus,
faecalis,
C.
albicans
evaluated.
HAp/MWCNT
did
not
show
any
antimicrobial
activity,
while
Ag-HAp/MWCNTs
inhibition
zones
14
mm
Escherichia
coli
18
Pseudomonas
aeruginosa
at
5
mg/mL.
Ag@Se-MWCNTs/HAp
exhibited
superior
efficacy
mm,
12
20
Candida
albicans,
incorporation
Ag@SeNPs
enhanced
HAp’s
antibacterial
antifungal
through
synergistic
mechanism.
Chemical Physics Impact,
Journal Year:
2023,
Volume and Issue:
7, P. 100253 - 100253
Published: June 25, 2023
Herein
for
the
first
time,
intertwined
nanocomposite
([email
protected]
NPs/MWCNTs)
of
cobalt
oxide
nanoparticles
(Co3O4
NPs)
adsorbed
on
selenium
(Se
(designated
as
[email
and
thiol
(–SH)
functionalized
multiwalled
carbon
nanotubes
(MWCNTs)
was
synthesized
by
a
simple
hydrothermal
method
to
achieve
excellent
capacitive
microbicidal
performance.
The
surface
morphology,
microstructure
functional
group
studies
ensures
that
existence
NPs
onto
MWCNTs.
electrochemical
(cyclic
voltammetry
(CV),
impedance
spectroscopy
(EIS)
galvanostatic
charge-discharge
(GCD))
were
performed
demonstrated
Supercapacitive
performance
NPs/MWCNTs
nanocomposite.
Higher
capacitance
(356
F/g)
with
better
coulombic
efficiency
84%
acquired.
Also,
it
exhibited
an
admirable
antimicrobial
study
illustrated
pathogens
more
susceptible
superior
activity
achieved
owing
specific
inherent
properties
groups
opt
binding
stabilizing
against
its
aggregation
influences
enrichment
MWCNTs
facilitates
in
enhancement
energy
storage
These
attained
outcomes
put
forward
applicability
active
towards
supercapacitor
antibacterial
agents
pathogens.
Discover Bacteria.,
Journal Year:
2024,
Volume and Issue:
1(1)
Published: Aug. 13, 2024
Abstract
The
expanding
threat
presented
by
developing
pathogenic
multidrug-resistant
(MDR)
bacteria
calls
for
an
urgent
need
research,
particularly
given
the
growing
concern
global
public
health.
Bimetallic
nanoparticles
(NPs)
have
potential
to
be
utilized
a
broad
variety
of
pharmacological
and
biological
applications
because
their
outstanding
antibacterial
activity
at
low
concentrations
continuous
phase
stability.
This
is
especially
true
when
it
comes
preventing
MDR
from
invading.
Several
synthetic
methods
producing
bimetallic
NPs
range
analytical
(used
characterize
them)
are
covered
in
this
brief
communication
paper.
Additionally,
I
tried
highlight
literature
review
on
antimicrobial
capabilities
several
synthesized
NPs.
final
section
discussed
structure
mechanism
action
against
bacteria.
Electrostatic
interaction,
damage
cell
membranes,
change
enzymes
proteins,
oxidative
stress
production
reactive
oxygen
species
(ROS),
binding
proteins
that
disturbs
electron
transport
chain
homeostasis,
signal
transduction
suppression,
genotoxicity
some
possible
associations
with
phenomenon
being
studied.