A
series
of
bisphosphine-grafted
amphiphilic
polymers
based
on
polyethylene
glycol-poly(vinylethylene
glycol)
(PEG-PVEG)
copolymers
have
been
synthesized
by
using
allylic
etherification
polymerization
as
a
pivotal
step.
Self-assembling
the
palladium
complexes
obtained
into
spherical
micelles
has
investigated
UV-vis,
DLS
and
TEM
analysis.
The
outstanding
catalytic
performance
present
micellar
catalyst
evidenced
in
aqueous
Suzuki-Miyaura
coupling
reaction,
achieving
remarkable
efficiency
even
at
low
loading
100
ppm
within
2
h.
Environmental Health Perspectives,
Год журнала:
2024,
Номер
132(2)
Опубликована: Фев. 1, 2024
Micro-
and
nanoplastics
(MNPs)
homosalate
(HMS)
are
ubiquitous
emerging
environmental
contaminants
detected
in
human
samples.
Despite
the
well-established
endocrine-disrupting
effects
(EDEs)
of
HMS,
interaction
between
MNPs
HMS
its
impact
on
HMS-induced
EDEs
remain
unclear.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 16, 2025
Today,
pesticides
are
widely
used
to
enhance
agricultural
yield
mixed
with
soil
and
water,
creating
significant
environmental
pollution.
The
extensive
use
of
insecticides
for
pest
control
has
made
this
issue
more
pronounced.
Abamectin,
a
key
member
the
avermectin
family,
is
as
an
insecticide
antihelminthic
agent
in
agriculture.
It
active
effective
pesticide,
particularly
preferred
combating
pests
such
aphids
red
spider
mites.
dosage
frequency
its
vary
depending
on
target
plant
species
organism.
For
example,
abamectin-based
products
18
g/L
EC
formulation
apple
orchards
typically
recommended
at
10
ml/100
L
water
Although
significantly
below
application
levels,
low
dose
0.75
µg
L⁻1
our
study
demonstrated
effects
that
cannot
be
overlooked.
However,
it
can
contaminate
aquatic
environments,
posing
harmful
organisms.
Studies
indicate
abamectin
exposure
may
lead
serious
health
issues,
showing
toxic
reproductive
toxicity
species.
Examining
abamectin's
testicular
tissue
revealed
hypertrophy
Sertoli
cells
group
exposed
abamectin.
Apoptotic
were
observed
groups
1.5
L⁻1.
At
same
time,
pyknotic
structures,
disruption
seminiferous
tubules,
interstitial
fibrosis,
atrophic
appearance
identified
across
all
groups,
severity
increasing
dose-dependently.
Analysis
ovarian
distortion
zona
radiata
Moreover,
thickening
radiata,
vacuolization,
formation
degenerated
follicles,
nuclear
observed,
these
pathological
alterations
exacerbating
dose-dependent
manner.
Like
many
studies
involving
zebrafish,
research
crucial
assessing
potential
pose
risks
human
health.
This
examined
histopathological
varying
doses
(0.75
L⁻1,
3
L⁻1)
zebrafish
gonads
after
96
h
exposure.
Using
standard
histological
techniques,
samples
prepared
stained
H&E
under
light
microscope.
Statistical
analyses
conducted
using
SPSS
23.
normality
data
was
assessed
Shapiro–Wilk
test.
One-way
ANOVA
Tukey
post-hoc
tests
normally
distributed
while
Kruskal–Wallis
Dunnett's
T3
applied
non-normally
groups.
All
performed
95%
confidence
interval
significance
level
p
>
0.05.
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(36), С. 13384 - 13396
Опубликована: Авг. 31, 2023
Imidacloprid
(IMI)
and
thiamethoxam
(THM)
are
ubiquitous
in
aquatic
ecosystems.
Their
negative
effects
on
parental
fish
investigated
while
intergenerational
at
environmentally
relevant
concentrations
remain
unclear.
In
this
study,
F0
zebrafish
exposed
to
IMI
THM
(0,
50,
500
ng
L-1)
for
144
days
post-fertilization
(dpf)
was
allowed
spawn
with
two
modes
(internal
mating
cross-mating),
resulting
four
types
of
F1
generations
investigate
the
effects.
affected
fecundity,
gonadal
development,
sex
hormone
VTG
levels,
accumulations
found
muscles
ovaries.
generation,
paternal
or
maternal
exposure
also
influenced
hormones
levels
elevated
heart
rate
spontaneous
movement
rate.
LncRNA-mRNA
network
analysis
revealed
that
cell
cycle
oocyte
meiosis-related
pathways
groups
steroid
biosynthesis
related
were
significantly
enriched
offspring.
Similar
transcriptional
alterations
dmrt1,
insl3,
cdc20,
ccnb1,
dnd1,
ddx4,
cox4i1l,
cox5b2
observed
gonads
generations.
The
findings
indicated
prolonged
could
severely
cause
toxicity,
developmental
toxicity
endocrine-disrupting
