Environmental Science & Technology,
Год журнала:
2023,
Номер
57(48), С. 19663 - 19677
Опубликована: Ноя. 10, 2023
A
lack
of
mechanistic
understanding
nanomaterial
interactions
with
plants
and
algae
cell
walls
limits
the
advancement
nanotechnology-based
tools
for
sustainable
agriculture.
We
systematically
investigated
influence
nanoparticle
charge
on
model
wall
surfaces
built
cellulose
or
pectin
performed
a
comparative
analysis
native
Arabidopsis
green
(Choleochaete).
The
high
affinity
positively
charged
carbon
dots
(CDs)
(46.0
±
3.3
mV,
4.3
1.5
nm)
to
both
was
dominated
by
strong
ionic
bonding
between
surface
amine
groups
CDs
carboxyl
pectin.
In
contrast,
these
formed
weaker
hydrogen
hydroxyl
surfaces.
similar
size
negative
(−46.2
1.1
6.6
3.8
neutral
(−8.6
1.3
1.9
ζ-potentials
exhibited
negligible
walls.
Real-time
monitoring
CD
indicated
higher
absorption
efficiency
(3.4
10−9)
acoustic
mass
density
(313.3
63.3
ng
cm–2)
than
counterparts
(p
<
0.001
p
0.01,
respectively).
significantly
enhanced
electrostatic
walls,
pointing
approaches
control
binding
plant
biosurfaces.
Ca2+-induced
cross-linking
affected
initial
(∼3.75
times
lower)
but
not
accumulation
nanoparticles
This
study
developed
biosurfaces
elucidating
fundamental
nanomaterials
main
barrier
translocation
in
environment,
nanoenabled
agriculture
reduced
environmental
impact.
Langmuir,
Год журнала:
2024,
Номер
40(31), С. 16511 - 16520
Опубликована: Июль 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
Nanomaterials,
Год журнала:
2022,
Номер
12(14), С. 2419 - 2419
Опубликована: Июль 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,
Год журнала:
2022,
Номер
12(5), С. 1557 - 1569
Опубликована: Фев. 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
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(48), С. 19663 - 19677
Опубликована: Ноя. 10, 2023
A
lack
of
mechanistic
understanding
nanomaterial
interactions
with
plants
and
algae
cell
walls
limits
the
advancement
nanotechnology-based
tools
for
sustainable
agriculture.
We
systematically
investigated
influence
nanoparticle
charge
on
model
wall
surfaces
built
cellulose
or
pectin
performed
a
comparative
analysis
native
Arabidopsis
green
(Choleochaete).
The
high
affinity
positively
charged
carbon
dots
(CDs)
(46.0
±
3.3
mV,
4.3
1.5
nm)
to
both
was
dominated
by
strong
ionic
bonding
between
surface
amine
groups
CDs
carboxyl
pectin.
In
contrast,
these
formed
weaker
hydrogen
hydroxyl
surfaces.
similar
size
negative
(−46.2
1.1
6.6
3.8
neutral
(−8.6
1.3
1.9
ζ-potentials
exhibited
negligible
walls.
Real-time
monitoring
CD
indicated
higher
absorption
efficiency
(3.4
10−9)
acoustic
mass
density
(313.3
63.3
ng
cm–2)
than
counterparts
(p
<
0.001
p
0.01,
respectively).
significantly
enhanced
electrostatic
walls,
pointing
approaches
control
binding
plant
biosurfaces.
Ca2+-induced
cross-linking
affected
initial
(∼3.75
times
lower)
but
not
accumulation
nanoparticles
This
study
developed
biosurfaces
elucidating
fundamental
nanomaterials
main
barrier
translocation
in
environment,
nanoenabled
agriculture
reduced
environmental
impact.
