Langmuir,
Journal Year:
2024,
Volume and Issue:
40(31), P. 16511 - 16520
Published: July 29, 2024
An
intelligent
delivery
nanoformulation
could
enhance
the
utilization
efficacy,
uptake,
and
translocation
of
pesticides
in
plants.
Herein,
a
redox/pH-triggered
fluorescent
smart
was
designed
constructed
by
using
hollow
mesoporous
organosilica
nanoparticles
(HMONs)
ZnO
quantum
dots
as
nanocarrier
capping
agent,
respectively.
Boscalid
further
loaded
to
generate
Boscalid@HMONs@ZnO
with
loading
rate
9.8%
for
controlling
Botrytis
cinerea
(B.
cinerea).
The
quantity
boscalid
released
glutathione
environment
or
at
pH
3.0
1.3-fold
1.9-fold
higher
than
that
neutral
condition.
has
1.7-fold
toxicity
index
technical
against
B.
antifungal
experiments.
Pot
experiments
revealed
efficacy
significantly
enhanced
more
1.27-fold
compared
commercially
available
water-dispersible
granules
boscalid.
Due
fluorescence
properties
Boscalid@HMONs@ZnO,
pesticide
transport's
real-time
monitoring
tomato
plants
be
observed
confocal
laser
scanning
microscopy.
Fluorescence
images
HMONs@ZnO
had
been
effectively
transported
via
treated
leaves
roots
This
research
showed
successful
application
disease
offered
an
effective
avenue
explore
tracking
Here,
isotopically
labeled
68ZnO
NPs
(ZnO
NPs)
and
with
a
thin
68Zn3(PO4)2
shell
(ZnO_Ph
were
foliarly
applied
(40
μg
Zn)
to
pepper
plants
(Capsicum
annuum)
determine
the
effect
of
surface
chemistry
ZnO
on
Zn
uptake
systemic
translocation
plant
organs
over
6
weeks.
Despite
similar
dissolution
both
Zn-based
after
3
weeks,
Zn3(PO4)2
ZnO_Ph
(48
±
12
nm;
−18.1
0.6
mV)
enabled
leaf
2.31
0.34
Zn,
which
is
2.7
times
higher
than
0.86
0.18
observed
for
(26
8
14.6
0.4
mV).
Further,
led
mobility
phloem
loading,
while
from
was
stored
in
epidermal
tissues,
possibly
through
cell
wall
immobilization
as
storage
strategy.
These
differences
within
all
compartments.
also
more
persistent
exposed
stem
time.
As
result,
treatment
induced
significantly
transport
fruit
NPs.
determined
by
spICP-TOFMS,
not
NP
form.
results
suggest
that
can
help
promote
fruits
when
applied.
This
work
provides
insight
into
role
foliar
planta
biodistribution
improving
delivery
edible
parts
ultimately
content
food
human
consumption.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(14), P. 2419 - 2419
Published: July 14, 2022
Various
nano-delivery
systems
have
been
designed
to
deliver
synthetic/botanical
pesticides
for
improved
bioactivity.
However,
the
enhanced
toxicity
of
nanocarrier-loaded
may
injure
natural
enemies,
and
their
selective
should
be
evaluated
before
large-scale
application.
In
this
context,
a
star
polymer
(SPc)-based
cyantraniliprole
(CNAP)
system
was
constructed,
its
using
pest
Frankliniella
occidentalis
(WFT)
predator
Orius
sauteri.
The
amide
NH
CNAP
could
assemble
with
carbonyl
groups
or
tertiary
amines
SPc
through
hydrogen
bonds
form
CNAP/SPc
complex
spontaneously.
above
self-assembly
decreased
particle
size
from
808
299
nm.
With
help
SPc,
lethal
concentration
50
(LC50)
values
99
54
mg/L
230
173
toward
WFTs
O.
sauteri
due
enhancement
broad-spectrum
Interestingly,
ratio
(TSR)
increased
2.33
3.23
revealing
higher
selectivity
SPc-loaded
CNAP.
To
our
knowledge,
it
first
successful
exploration
pesticides,
beneficial
alleviating
negative
impacts
on
predators.
Applied Nanoscience,
Journal Year:
2022,
Volume and Issue:
12(5), P. 1557 - 1569
Published: Feb. 5, 2022
Abstract
Zein
nanoparticles
(ZNPs)
were
synthesized
with
a
cationic
surfactant,
didodecyldimethylammonium
bromide
(122.9
±
0.8
nm,
+
59.7
4.4
mV)
and
non-ionic
Tween
80
(118.7
1.7
26.4
1.1
mV).
Lignin-graft-poly(lactic-
co
-glycolic)
acid
(LNPs)
made
without
surfactants
(52.9
0.2
−
54.9
0.5
Both
samples
applied
as
antifungal
seed
treatments
on
soybeans,
their
impact
germination
plant
health
was
assessed.
Treated
seeds
showed
high
rates
(>
90%
for
all
treatment
groups),
similar
to
the
control
group
(100%).
Root
stem
lengths
dry
biomass
of
treated
not
statistically
distinguishable
from
control.
Foliage
seed-treated
plants
fed
larvae
Chrysodeixis
includens
no
differences
in
mortality
between
treatments.
No
translocation
fluorescently
tagged
particles
observed
fluorescence
microscopy
following
germination.
Nano-delivered
azoxystrobin
provided
~
100%
protection
when
LNPs
used.
Results
suggest
ZNPs
are
safe
effective
delivery
systems
active
compounds
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(31), P. 16511 - 16520
Published: July 29, 2024
An
intelligent
delivery
nanoformulation
could
enhance
the
utilization
efficacy,
uptake,
and
translocation
of
pesticides
in
plants.
Herein,
a
redox/pH-triggered
fluorescent
smart
was
designed
constructed
by
using
hollow
mesoporous
organosilica
nanoparticles
(HMONs)
ZnO
quantum
dots
as
nanocarrier
capping
agent,
respectively.
Boscalid
further
loaded
to
generate
Boscalid@HMONs@ZnO
with
loading
rate
9.8%
for
controlling
Botrytis
cinerea
(B.
cinerea).
The
quantity
boscalid
released
glutathione
environment
or
at
pH
3.0
1.3-fold
1.9-fold
higher
than
that
neutral
condition.
has
1.7-fold
toxicity
index
technical
against
B.
antifungal
experiments.
Pot
experiments
revealed
efficacy
significantly
enhanced
more
1.27-fold
compared
commercially
available
water-dispersible
granules
boscalid.
Due
fluorescence
properties
Boscalid@HMONs@ZnO,
pesticide
transport's
real-time
monitoring
tomato
plants
be
observed
confocal
laser
scanning
microscopy.
Fluorescence
images
HMONs@ZnO
had
been
effectively
transported
via
treated
leaves
roots
This
research
showed
successful
application
disease
offered
an
effective
avenue
explore
tracking
