Antioxidants,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1399 - 1399
Published: Nov. 15, 2024
Amphibians,
which
are
essential
components
of
ecosystems,
susceptible
to
pharmaceutical
contamination,
a
phenomenon
increasing
concern
owing
the
widespread
consumption
and
detection
compounds
in
environmental
matrices.
This
review
investigates
oxidative
stress
(OS)
as
primary
mechanism
drug
toxicity
these
organisms.
The
evidence
gathered
reveals
that
various
pharmaceuticals,
from
antibiotics
anesthetics,
induce
OS
by
altering
biomarkers
damage
antioxidant
defense.
These
findings
underscore
deleterious
effects
pharmaceuticals
on
amphibian
health
development
emphasize
necessity
incorporating
into
ecotoxicological
risk
assessments.
Although
further
studies
diverse
species,
mixtures,
field
required,
offer
valuable
tools
for
identifying
sublethal
risks.
Furthermore,
more
refined
will
facilitate
early
adverse
effects,
crucial
protecting
amphibians
their
ecosystems.
Ultimately,
this
calls
continued
research
mitigation
strategies
safeguard
biodiversity
contamination.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(4), P. 912 - 912
Published: Feb. 16, 2025
Phospholipase
D
(PLD)
plays
a
pivotal
role
in
the
biosynthesis
of
phosphatidylserine
(PS),
but
its
practical
application
is
constrained
by
limitations
stability
and
reusability.
In
this
study,
we
successfully
fabricated
Fe3O4@SiO2-graphene
oxide
(GO)
nanocomposite
chemical
binding
Fe3O4@SiO2
GO.
Subsequently,
PLD
was
immobilized
onto
via
physical
adsorption,
with
aim
enhancing
catalytic
stability,
reducing
mass
transfer
resistance,
improving
Under
optimal
conditions,
immobilization
efficiency
reached
84.4%,
loading
capacity
111.4
mg/gsupport.
The
pH
for
PS
production
shifted
from
6.0
to
6.5,
while
temperature
increased
45
°C
50
°C.
Notably,
demonstrated
shorter
reaction
time
higher
yield,
achieving
95.4%
yield
within
90
min,
compared
free
(78.1%
150
min),
representing
1.04-fold
improvement
efficiency.
Furthermore,
exhibited
outstanding
storage
thermal
along
remarkable
Even
after
being
reused
10
cycles,
still
stays
as
high
78.3%.
These
findings
strongly
suggest
that
Fe3O4@SiO2-GO
has
potential
efficient
PS.
Royal Society of Chemistry eBooks,
Journal Year:
2025,
Volume and Issue:
unknown, P. 244 - 272
Published: May 7, 2025
Currently,
scientists
worldwide
are
facing
the
challenge
of
solving
problem
water
pollution.
Pollutants
coming
mainly
from
industrial
activity,
including
toxic
metals,
dyes
and
antibiotics,
reach
bodies,
resulting
in
their
contamination.
In
this
context,
environmental
remediation
is
key
to
preserving
environment,
for
which
various
technologies
have
been
used
over
years,
present
drawbacks
based
on
times,
efficiencies
costs.
recent
development
nanomaterials
applied
treatment
has
allowed
resolving
limitations
conventional
technologies.
Among
them,
use
magnetic
nanoparticles
highlighted
easy
manipulation,
thanks
intrinsic
magnetism,
especially
those
formed
by
metal
oxides.
The
tendency
oxides
agglomerate
resolved
through
surface
modification
chemical
functionalization,
turn
allows
removal
specific
analytes
selective
interactions
with
certain
functional
groups.
Based
above,
book
chapter
proposes
a
review
most
advances
(2020–2023)
functionalized
metals
organic
compounds
wastewater
samples.
Different
parameters
discussed,
us
understand
processes,
along
capacity
reuse,
synthesis
characterization,
addressing
current
challenges
future
perspectives.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
22, P. 102228 - 102228
Published: May 9, 2024
This
study
introduces
the
development
of
novel,
flexible
gas
sensors
operating
at
room
temperature
(RT),
utilizing
a
graphene
oxide
(GO)
via
modified
Hummers
method
and
bacterial
nanocellulose
(BNC)
composite
to
enhance
detection
in
industrial
environmental
settings.
The
materials,
denoted
as
GO@BNC,
were
synthesized
with
varying
GO
concentrations
ranging
from
2
%
30
%,
aiming
investigate
their
responsiveness
gases
such
carbon
dioxide
(CO2),
oxygen
(O2),
acetone
(Ac),
ethanol
(Eth).
prepared
nanomaterials
characterized
using
FT-IR,
Raman,
TGA,
SEM,
AFM
techniques.
bandgap
Go
ranges
4.19,
3.47,
3.16,
2.79,
2.48
eV
for
2,
5,
10,
20,
concentrations,
respectively.
Notably,
sensor
containing
wt
20
concentration
exhibited
remarkable
sensitivity
Ac,
achieving
270
increase
resistance
250
μL/L.
Conversely,
30%
composition
showed
superior
Eth,
420%
signal
enhancement
under
similar
conditions.
Further
modification
GO@BNC
through
mild
reduction
resulted
formation
reduced
(rGO@BNC)
composites
intended
assess
functional
groups'
impact
on
sensing
performance.
Our
findings
underscore
potential
sustainable
efficient
materials
fabricating
eco-friendly
devices
detecting
organic
compounds.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(15), P. e35204 - e35204
Published: July 26, 2024
The
presence
of
chromium
[Cr(VI)]
and
lead
[Pb(II)]
ions
in
the
water
bodies
have
adverse
effects
on
humans
aquatic
life.
Graphene
oxide-based
magnetic
nanocomposites
synthesized
chitosan
(mGO/CS)
or
polyaniline
(mGO/PA)
as
potential
adsorbents
for
removal
Cr(VI)
Pb(II)
ions.
FTIR
(Fourier
transform
infrared
spectroscopy),
EDX
(Energy
dispersive
X-ray),
XRD
(X-ray
diffraction)
SEM
(Scanning
electron
microscopy)
were
employed
to
investigate
chemical
composition,
structural,
elemental
analysis,
crystalline
size
morphology
nanocomposites.
results
confirmed
synthesis
by
detecting
peaks
specific
functional
groups.
average
crystallite
sizes
mGO,
mGO/CS,
mGO/PA
17,
25,
23
(nm),
respectively,
determined
Debye-Scherrer
equation
from
data.
Batch
adsorption
experiments
conducted
varying
variables
like
pH,
concentration
metal
contact
time.
Box
Behnken
design
(BBD)
was
used
optimize
parameters.
Under
optimum
conditions,
mGO/CS
showed
maximum
percentages
(%R)
92.36
98.7
Pb(II),
85.25
93.08
Cr(VI),
respectively.
capacities
110.84
118.44
mg/g
87.74
111.7
obtained
mGO/PA,
pseudo-second-order
kinetic
model
Langmuir
isotherm
fitted
well
experimental
data
explain
mechanism
nanocomposite
materials
both
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
21, P. 101792 - 101792
Published: Jan. 15, 2024
The
present
investigation
aims
to
shed
light
on
the
efficiency
of
irradiation-based
advanced
oxidation
processes
using
controlled
pulsed
illumination
(CPI)
in
a
homogeneous
process.
A
more
in-depth
emphasis
has
been
applied
considering
ultraviolet-light
emitting
diodes/persulfate
(LED/S2O82−)
system.
Irradiation-driven
can
unexpected
behaviour
under
irradiation
compered
continuous
irradiation.
This
be
explained
by
Parrando's
paradox
concept.
removal
organic
dyes
source
was
compared
CPI
system
employing
UV-LED/S2O82−
photoreactor
explore
performance.
UV-LED/PS
method
investigated
three
as
model
pollutants
and
duty
cycle
pulse
period
parameters
source.
have
crucial
impact
efficiencies,
which
were
studied
values
10
%,
25
50
75
90
99
%
for
periods
from
1
ms
(ms)
few
hundred
current
study.
For
all
experiments,
electrical
energy
consumption
(EEO)
calculated,
values.
According
results,
cycles
(10
800
ms),
with
EEO
amounts
58.29,
120.65,
29.62
kWh
per
order
showed
best
performance
dyes,
respect
other
experiments
terms
saving
energy.
Besides,
game
theory
collision
hypothesis
scrutinized
justify
achieved
results.
Journal of Health and Rehabilitation Research,
Journal Year:
2024,
Volume and Issue:
4(1), P. 1442 - 1449
Published: March 21, 2024
Background:
The
prevalence
of
antibiotic
contaminants
in
aquatic
environments
presents
a
critical
challenge
to
public
health,
necessitating
the
development
efficient
removal
methods.
Emerging
pollutants,
especially
antibiotics,
have
been
implicated
rise
antibiotic-resistant
bacteria,
threatening
ecological
balance
and
human
well-being.
Objective:
This
study
aims
synthesize
evaluate
efficacy
CaCl2-based
composite
hydrogel
using
chitosan
as
biopolymer
for
adsorption
pollutants
from
water,
targeting
improvement
water
purification
technologies
healthcare
settings.
Methods:
Chitosan-based
hydrogels
were
synthesized
via
free
radical
polymerization,
incorporating
CaCl2
utilizing
techniques
such
Field
Emission
Scanning
Electron
Microscopy
(FESEM)
morphology
analysis,
Energy-dispersive
X-ray
(EDX)
analysis
elemental
verification,
Fourier-transform
infrared
spectroscopy
(FTIR)
functional
group
identification,
diffraction
(XRD)
determine
crystallinity.
Physicochemical
parameters,
including
contact
time,
pH,
temperature,
reusability,
swelling
behavior
various
media,
systematically
assessed
ascertain
hydrogel's
adsorptive
performance.
Results:
demonstrated
porous
rough
surface
ideal
adsorption,
with
an
initial
rate
80%
within
30
minutes
time.
FTIR
confirmed
presence
groups
corresponding
absorption
bands
at
1053,
1415,
1601,
2600,
2900,
3300,
3500
cm-1.
EDX
XRD
analyses
affirmed
incorporation
CaCl2,
crystalline
phase
characterized
by
sharp
peaks.
maximum
efficiency
reached
95%
optimized
adsorbent
dose
0.05
g.
Conclusion:
exhibits
significant
potential
suggesting
viable
approach
mitigate
environmental
impact
pharmaceutical
enhance
health
reducing
spread
resistance.