ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
An
ideal
green
leaf-deposited
pesticide
formulation
should
offer
advantages
such
as
good
water
dispersibility,
strong
foliar
affinity,
sustained
or
controlled
release
of
active
ingredients,
photostability
and
rain-fastness,
minimal
nontarget
toxicity,
use
nontoxic
organic
solvents,
degradable
adjuvants.
In
line
with
this
objective,
we
present
preparation
a
colloidal
using
optimized
lysine-derived
carbon
dots
(LysCDs)-modified
CaCO3
(LysCDs/CaCO3)
particles
the
carrier
abamectin
(Abm)
ingredient.
The
loading
capacity
in
(LysCDs/CaCO3/Abm)
is
1.7
to
2.1
times
higher
than
that
its
counterpart
(CaCO3/Abm)
prepared
without
LysCDs,
which
attributed
increased
specific
surface
area
pore
volume
LysCDs/CaCO3
particles.
Due
acid-induced
degradation
CaCO3,
for
LysCDs/CaCO3/Abm
accelerated
under
weakly
acidic
conditions,
accompanied
by
Ca2+
ions
fluorescence
changes
LysCDs.
incorporation
LysCDs
enhances
adhesiveness
pesticide,
resulting
highest
degree
retention
when
exposed
ultraviolet
(UV)
light
rainfall,
compared
free-form
CaCO3/Abm.
This
results
best
performance
pest
control
on
Plutella
xylostella
both
indoor
outdoor
tests.
Nontarget
biocompatibility
evaluations
show
exhibits
lower
acute
toxicity
zebrafish
earthworms
abamectin.
addition,
favored
residue
adjuvant
material
after
release,
converted
into
harmless
ions,
CO2,
Therefore,
work
designs
safer
more
effective
deliver
residue,
realizing
trajectory
basically
"circular
green".
Journal of Agricultural and Food Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 4, 2024
RNA
interference
(RNAi)
has
shown
substantial
promise
as
a
sustainable
pest
management
solution.
However,
the
efficacy
of
RNAi-based
insecticides
heavily
relies
on
advanced
nanocarrier-mediated
delivery
systems.
In
this
study,
we
modified
raw
graphene
oxide
into
positively
charged
nanocarriers
(GONs)
tailored
to
bind
with
double-stranded
(dsRNA).
The
resulting
GONs@dsRNA
complexes
demonstrated
small
particle
size
(106
nm)
and
maintained
stability
under
various
conditions,
including
insect
gut
extracts,
extreme
pH,
temperature.
Furthermore,
GONs
efficiently
transported
dsRNA
molecules
Drosophila
S2
cells
Lepidoptera
Sf9
cells,
leading
an
enhanced
target
transcript
knockdown.
Targeting
vacuolar
ATPase
gene,
ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
An
ideal
green
leaf-deposited
pesticide
formulation
should
offer
advantages
such
as
good
water
dispersibility,
strong
foliar
affinity,
sustained
or
controlled
release
of
active
ingredients,
photostability
and
rain-fastness,
minimal
nontarget
toxicity,
use
nontoxic
organic
solvents,
degradable
adjuvants.
In
line
with
this
objective,
we
present
preparation
a
colloidal
using
optimized
lysine-derived
carbon
dots
(LysCDs)-modified
CaCO3
(LysCDs/CaCO3)
particles
the
carrier
abamectin
(Abm)
ingredient.
The
loading
capacity
in
(LysCDs/CaCO3/Abm)
is
1.7
to
2.1
times
higher
than
that
its
counterpart
(CaCO3/Abm)
prepared
without
LysCDs,
which
attributed
increased
specific
surface
area
pore
volume
LysCDs/CaCO3
particles.
Due
acid-induced
degradation
CaCO3,
for
LysCDs/CaCO3/Abm
accelerated
under
weakly
acidic
conditions,
accompanied
by
Ca2+
ions
fluorescence
changes
LysCDs.
incorporation
LysCDs
enhances
adhesiveness
pesticide,
resulting
highest
degree
retention
when
exposed
ultraviolet
(UV)
light
rainfall,
compared
free-form
CaCO3/Abm.
This
results
best
performance
pest
control
on
Plutella
xylostella
both
indoor
outdoor
tests.
Nontarget
biocompatibility
evaluations
show
exhibits
lower
acute
toxicity
zebrafish
earthworms
abamectin.
addition,
favored
residue
adjuvant
material
after
release,
converted
into
harmless
ions,
CO2,
Therefore,
work
designs
safer
more
effective
deliver
residue,
realizing
trajectory
basically
"circular
green".
