Biomass Conversion and Biorefinery,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 23, 2023
Abstract
In
the
current
study,
optimal
reaction
condition
for
fabrication
of
Au
and
Ag
nanoparticles
by
using
Trichoderma
saturnisporum
was
developed.
Optimization
fermentation
conditions
extracellular
AuNPs
AgNPs
synthesis
response
surface
methodology
achieved.
To
accomplish
ideal
state,
green
reaction’s
effective
parameters
central
composite
face
design
were
used.
Precursor
concentrations,
pH,
temperature
found
to
be
most
nanomaterials.
The
model’s
realization
used
a
respectable
foot.
Normal
probability
plots;
interaction
plots,
including
effect
variance
analysis
(ANOVA),
contour
Pareto
charts
optimize
components.
Significance
threshold
(5%)
influence
all
factors.
production
process
also
influenced
some
potential
connections
between
these
recommended
regression
model
fits
experimental
data
extremely
well.
findings
this
study
looked
at
how
much
more
bio-fabrication
possible
with
producer
compared
traditional
optimization
techniques.
Biomass Conversion and Biorefinery,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Sept. 15, 2023
Abstract
Many
research
papers
are
currently
being
written
about
various
methodologies
for
the
green
synthesis
of
ZnO
nanoparticles.
In
this
study,
nanoparticles
were
prepared
by
method
using
baker’s
yeast
(
Saccharomyces
cerevisiae
).
The
characterization
produced
involved
utilization
XRD,
FTIR,
SEM,
and
TEM.
investigation
assessment
antimicrobial
potential
photocatalytic
degradation
efficacy
synthesized
materials
through
Eriochrome
Black
T
(EBT).
results
indicate
that
exhibit
a
spherical
morphology,
exhibiting
diameters
ranging
from
13.0
to
20.0nm,
with
an
average
particle
size
15.0nm.
against
S.
aureus
)
gram-positive
E.
coli
gram-negative
bacteria
was
tested
conduction
zone
inhibition
(ZOI)
minimum
inhibitory
concentration
(MIC)
tests.
This
focused
on
study
photocatalytic-degradation
EBT
in
presence
ultraviolet
light.
experiments
impact
factors,
such
as
pH
levels,
initial
concentration,
nanocatalyst
dosage,
observed
efficiency.
vitro
ZOI
MIC
assay,
it
(NPs)
exhibited
greater
,
measuring
23.1
mm
0.625
μg/ml.
contrast,
effectiveness
ZnO-NPs
comparatively
lower,
indicated
17.0
1.250μg/ml.
greatest
elimination,
which
achieved
83.0%
equilibrium,
found
employing
20.0mg
NPs
at
3.0,
according
activity
results.
synthetic
powerful
antibacterial
agents
effective
may
be
used
treatment
wastewater.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 19, 2024
Abstract
Multi-drug
resistant
(MDR)
bacteria
are
considered
a
serious
public
health
threat.
Also,
increasing
rate
of
resistance
to
anticancer
drugs,
as
well
their
toxicity,
is
another
point
concern.
Therefore,
the
new
antibacterial
and
agents
always
needed.
The
synthesizing
silver
nanoparticles
(AgNPs)
using
medicinal
plants,
an
effective
approach
for
developing
novel
agents.
Rubus
discolor
,
native
species
Caucasus
region,
produces
leaves
that
typically
discarded
by-product
raspberry
production.
present
study
has
focused
on
optimizing
green
synthesis
AgNPs
R.
extract
through
response
surface
methodology.
optimal
values
were
AgNO
3
concentration
7.11
mM,
time
17.83
h,
temperature
56.51
°C,
percentage
29.22.
production
was
confirmed
UV–visible
spectroscopy
(λ
max
at
456.01
nm).
TEM
analysis
revealed
well-dispersed
(an
average
size
37
XRD
crystalline
structure.
EDX
detected
strong
peak
keV
corresponded
Ag.
zeta
potential
value
(−
44.2
mV)
indicated
stability
nanoparticles.
FT-IR
spectra
showed
presence
various
functional
groups
from
plant
compounds,
which
play
important
role
in
capping
bio-reduction
processes.
impressive
activities
against
MDR
Escherichia
coli
Pseudomonas
aeruginosa
(MIC
ranging
0.93
3.75
mg
ml
−1
).
phytochemical
phenolics,
tannins,
flavonoids
AgNPs.
They
also
significant
cytotoxic
effects
A431,
MCF-7,
HepG2
cells
(IC
50
11
49.1
µg
−l
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: April 26, 2024
In
recent
years,
there
has
been
an
increasing
interest
in
the
green
synthesis
of
metallic
nanoparticles,
mostly
because
evident
limitations
associated
with
chemical
and
physical
methods.
Green
synthesis,
commonly
referred
to
as
"biogenic
synthesis,"
is
seen
alternative
approach
produce
AgNPs
(silver
nanoparticles).
The
current
work
focuses
on
use
Asterarcys
sp.
(microalga)
for
biological
reduction
AgNO
BMC Microbiology,
Journal Year:
2024,
Volume and Issue:
24(1)
Published: March 8, 2024
Abstract
Background
and
objectives
Microbial
cells
capability
to
tolerate
the
effect
of
various
antimicrobial
classes
represent
a
major
worldwide
health
concern.
The
flexible
multi-components
nanocomposites
have
enhanced
physicochemical
characters
with
several
improved
properties.
Thus,
different
biological
activities
biosynthesized
starch/silver-selenium
nanocomposite
(St/Ag-Se
NC)
were
assessed.
Methodology
St/Ag-Se
NC
was
using
Cladosporium
cladosporioides
CBS
174.62
(
C.
)
strain.
shape
average
particle
size
investigated
scanning
electron
microscope
(SEM)
high-resolution
transmission
(HR-TEM),
respectively.
On
other
hand,
on
two
cancer
cell
lines
red
blood
(RBCs)
evaluated
its
hydrogen
peroxide
(H
2
O
scavenging
Moreover,
effects
microbial
species
in
both
planktonic
biofilm
growth
forms
examined.
Results
successfully
oval
spherical
mean
diameter
67.87
nm
as
confirmed
by
HR-TEM
analysis.
showed
promising
anticancer
activity
toward
human
colorectal
carcinoma
(HCT-116)
breast
(MCF-7)
where
IC
50
21.37
19.98
µg/ml,
Similarly,
little
RBCs
observed
low
concentration.
As
well,
highest
H
(42.84%)
recorded
at
concentration
mg/ml.
Additionally,
Staphylococcus
epidermidis
S.
ATCC
12,228
Candida
albicans
10,231
highly
affected
bacterial
fungal
strains
minimum
inhibitory
concentrations
(MICs)
18.75
noticeable
dependent.
A
high
suppression
percentage,
87.5%
68.05%,
aureus
when
exposed
1
mg/ml
0.5
mg/ml,
Conclusion
excellent
antioxidant
activity,
haemocompatibility,
anti-proliferative
concentrations.
Also,
it
exhibited
antibiofilm
activities.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 3, 2025
Cancer
and
microbial
infections
place
a
significant
burden
on
the
world's
health
systems
can
increase
rate
of
disease
mortality.
In
current
study,
novel
nanocomposite
based
Gum
Arabic,
silver
copper
oxide
nanoparticles
(GA@Ag-CuO
nanocomposite)
was
synthesized
to
overcome
problem
infection
in
cancer
treatment.
Characterization
using
UV-Vis.
spectrophotometer
reveals
that,
observed
peak
spectrum
formed
by
O.D.
at
0.755,
confirmed
that
produced
GA@Ag-CuO
small
discernible
360
nm.
The
particles'
diameters
varied
from
9.5
nm
49.5
nm,
with
mean
diameter
25.53
±
1.4
created
Arabic
filtrate
rich
active
functional
groups,
provided
polydisperse
NPs
were
intended
reduce,
stabilize,
act
as
capping
agents.
Based
XRD
data,
crystallized
had
face-centered
(fcc)
crystal
structure.
Biosafety
assessed
toward
Wi
38
normal
cell
line,
where
it
showed
safety
tested
line
IC50
154.2
µg/mL.
Antimicrobial
results
has
antibacterial
activity
MICs
15.6,
125,
31.25
125
µg/mL
against
S.
epidermis,
aureus,
L.
plantrum,
typhimurium,
respectively.
Likewise,
antifungal
C.
albicans
neoformans
62.5
15.62
µg/ml,
Moreover,
displayed
promising
anticancer
26.11
59.5
µg/ml
MCF-7
Hep-G2,
conclusion,
demonstrated
antibacterial,
antifungal,
activities.
Biotechnology Journal,
Journal Year:
2023,
Volume and Issue:
18(12)
Published: Aug. 24, 2023
Recently,
agricultural
management
innovation
has
incorporated
engineered
nanoparticles.
The
current
investigation
was
carried
out
to
produce
magnesium
oxide
nanoparticles
(MgONPs)
for
the
first
time
applying
S.
cerevisiae
extract.
FTIR,
XRD,
HRTEM,
and
zeta
potential
analysis
were
used
characterize
MgONPs.
FTIR
data
show
that
bioactive
substances
reduce
cap
synthesized
crystalline
metallic
MgONPs
had
four
significant
peaks
in
XRD
pattern.
size
form
of
validated
by
TEM,
which
exhibited
spherical
structures
with
an
average
27
nm.
effect
various
dosages
administered
cowpea
(Vigna
unguiculata
L.)
plant
on
all
vitro
parameters
shown
be
study.
concentration
200
ppm
most
treatment
increased
shoot
length,
dry-weight
root
27.35%,
45.09%,
31.91%
when
compared
untreated
plants.
significantly
photosynthetic
pigments,
150
increasing
soluble
proteins
carbohydrates.
effectively
treated
C.
maculatus,
dose
time-dependent
insecticidal
activity.
death
rates
varied
82.66%
100%
fifth
day.
Biochemical
histopathological
studies
rats
investigated.
Rats
showed
higher
GOT,
GPT,
Urea
levels,
but
lower
creatinine,
indicating
differences.
MgONPs-treated
rats'
liver
mild
moderate
histopathologic
changes,
including
portal
blood
vessel
congestion,
lymphocytic
cholangitis,
degenerative
changes.
improve
development
outcomes
suppress
grain
insects
(C.
maculatus).
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Sept. 12, 2023
The
emergence
of
antimicrobial
resistance
in
foodborne
bacterial
pathogens
has
raised
significant
concerns
the
food
industry.
This
study
explores
potential
biosynthesized
silver
nanoparticles
(AgNPs)
derived
from
Agaricus
bisporus
(Mushroom)
against
pathogens.
AgNPs
were
characterized
using
various
techniques,
including
UV-visible
spectroscopy,
X-ray
diffraction,
Fourier
transform
infrared
high-resolution
scanning
electron
microscopy
with
energy
dispersive
dynamic
light
scattering,
and
zeta
analysis.
antibacterial
activity
was
tested
a
panel
strains,
their
cytotoxicity
evaluated
on
normal
human
skin
fibroblasts.
Among
Pseudomonas
aeruginosa
ATCC
27853
showed
highest
sensitivity
an
inhibition
zone
diameter
(IZD)
48
mm,
while
Klebsiella
quasipneumoniae
ATTC
700603
Bacillus
cereus
11778
displayed
IZDs
20
mm.
cations
released
by
demonstrated
strong
bactericidal
effects
both
Gram-positive
(G
+
ve)
Gram-negative
-
bacteria,
as
evidenced
minimum
inhibitory
concentration/minimum
concentration
(MBC/MIC)
ratio.
Moreover,
testing
fibroblasts
(HSF)
indicated
that
mushroom
extract
safe,
cell
viability
98.2%.
Therefore,
hold
promise
alternative
means
to
inhibit
biofilm
formation
industry
sector.