Molecules,
Год журнала:
2024,
Номер
29(22), С. 5330 - 5330
Опубликована: Ноя. 12, 2024
A
smart
and
environmentally
friendly
pesticide
system
was
developed
that
could
respond
to
environmental
stimuli
while
mitigating
risks.
In
this
study,
thiabendazole
(Thi),
an
effective
fungicide,
loaded
onto
zeolitic
imidazolate
framework-8
(ZIF-8)
using
the
impregnation
method
fabricate
a
pH-responsive
nano
hybrid
delivery
(Thi@ZIF-8).
The
results
demonstrated
Thi@ZIF-8
had
rhombic
dodecahedral
morphology
loading
capacity
of
approximately
25%.
Notably,
amount
Thi
released
from
at
pH
5.0
reached
79.54%,
which
higher
than
7.0
9.0,
for
251
h.
Such
release
characteristics
were
probably
related
pH-dependent
structure
stability
ZIF-8.
mechanism
conformed
non-Fickian
diffusion.
Additionally,
showed
control
efficacy
against
B.
cinerea
compared
with
alone.
Importantly,
ZIF-8
carrier
effectively
reduce
leaching
loss
in
soil
no
negative
effects
on
three
varieties
tomato
seedlings,
implying
good
biocompatibility.
This
work
provides
novel
eco-friendly
approach
has
great
potential
modern
sustainable
agriculture.
ACS Nano,
Год журнала:
2024,
Номер
18(21), С. 13781 - 13793
Опубликована: Май 16, 2024
Pine
wood
nematode
(PWN)
disease
is
a
globally
devastating
forest
caused
by
infestation
with
PWN,
Bursaphelenchus
xylophilus,
which
mainly
occurs
through
the
vector
insect
Japanese
pine
sawyer
(JPS),
Monochamus
alternatus.
PWN
notoriously
difficult
to
manage
effectively
and
known
as
"cancer
of
trees."
In
this
study,
dual
enzyme-responsive
nanopesticides
(AVM@EC@Pectin)
were
prepared
using
nanocoating
avermectin
(AVM)
after
modification
natural
polymers.
The
proposed
treatment
can
respond
cell
wall-degrading
enzymes
secreted
PWNs
insects
during
tree
intelligently
release
pesticides
cut
off
transmission
pathways
realize
integrated
control
disease.
LC50
value
AVM@EC@Pectin
was
11.19
mg/L
for
26.31
JPS.
insecticidal
activity
higher
than
that
commercial
emulsifiable
concentrate
(AVM-EC),
photostability,
adhesion,
target
penetration
improved.
half-life
(t1/2)
133.7
min,
approximately
twice
AVM-EC
(68.2
min).
Sprayed
injected
applications
showed
had
superior
bidirectional
transportation,
five-times
AVM
contents
detected
in
roots
relative
those
when
sprayed
at
top.
safety
experiment
lower
toxicity
nontarget
organisms
application
environment
human
cells.
This
study
presents
green,
safe,
effective
strategy
management
Journal of Agricultural and Food Chemistry,
Год журнала:
2024,
Номер
72(37), С. 20343 - 20353
Опубликована: Сен. 3, 2024
Based
on
the
modified
cross-linking
of
degradable
natural
polymers
chitosan
oligosaccharides
(COS)
and
gelatin
(GEL)
via
introduction
a
functional
bridge
3,3'-dithiodipropionic
acid,
this
study
constructed
an
environmentally
responsive
dinotefuran
(DNF)
delivery
system
(DNF@COS-SS-GEL).
The
disulfide
bond
(-S-S-)
endowed
DNF@COS-SS-GEL
with
redox-responsive
properties,
allowing
for
rapid
release
pesticides
when
stimulated
by
glutathione
(GSH)
in
simulated
insect.
Compared
commercial
DNF
suspension
concentrate
(DNF-SC),
showed
superior
wet
spreading
retention
performance
cabbage
leaves
reduced
contact
angle
(57°)
at
180
s
4-fold
increased
capacity
after
rainfall
washout.
Nanoencapsulation
effectively
improved
UV-photostability
only
31.4%
decomposition
rate
96
h.
small
scale
large
specific
surface
area
resulted
excellent
uptake
transportation
properties
plants
as
well
higher
bioactivity
against
