Plant
volatile
aldehydes
(PVAs)
such
as
cinnamaldehyde
(Cin),
citral
(Cit),
citronellal
(Citr),
and
perillaldehyde
(Per)
have
broad-spectrum
antimicrobial
activity
show
great
potential
in
agricultural
sustainable
production.
However,
most
PVAs
not
only
very
high
volatility
but
also
are
easily
degradable
environment,
which
seriously
restricts
their
wide
application.
To
address
the
inherent
problems
with
PVAs,
four
prodrugs
based
on
fabricated
by
conjugating
individually
Cin,
Cit,
Citr,
Per
to
sodium
bisulfite
(Sod)
through
a
simple
addition
reaction
subsequently
self-assembled
into
nanoparticles
(prodrug
self-assemblies)
aqueous
solutions.
The
results
showed
that
pH
of
7
temperature
35
°C
optimal
conditions
for
formation
prodrug
self-assemblies
highest
self-assembly
rates.
prepared
spherical
average
particle
sizes
100-200
nm,
almost
no
volatilization,
surface
stability,
can
respond
acidic
redox
microenvironments
release
PVAs.
synergistic
activities
against
Sclerotinia
sclerotiorum
Penicillium
digitatum,
good
biological
safety
plants.
Therefore,
these
findings
important
implications
efficient
utilization
agriculture,
ensuring
ecological
environment
realizing
development
agriculture.
ACS Nano,
Год журнала:
2024,
Номер
18(14), С. 10031 - 10044
Опубликована: Март 28, 2024
The
increasing
demand
for
improving
pesticide
utilization
efficiency
has
prompted
the
development
of
sustainable,
targeted,
and
stimuli-responsive
delivery
systems.
Herein,
a
multi-stimuli-responsive
nano/microcapsule
bidirectional
system
loaded
with
pyraclostrobin
(Pyr)
is
prepared
through
interfacial
cross-linking
from
lignin-based
Pickering
emulsion
template.
During
this
process,
methacrylated
alkali
lignin
nanoparticles
(LNPs)
are
utilized
as
stabilizers
tunable
oil–water
(O/W)
emulsion.
Subsequently,
thiol–ene
radical
reaction
occurs
acid-labile
cross-linkers
at
interface,
leading
to
formation
nano/microcapsules
(LNCs)
various
topological
shapes.
Through
investigation
polymerization
process
structure
LNC,
it
was
found
that
amphiphilicity-driven
diffusion
distribution
cyclohexanone
impact
topology
LNC.
obtained
Pyr@LNC
exhibits
high
encapsulation
efficiency,
size,
excellent
UV
shielding
Pyr.
Additionally,
flexible
shell
enhances
retention
adhesion
foliar
surface.
Furthermore,
pH/laccase-responsive
targeting
against
Botrytis
disease,
enabling
intelligent
release
in
vivo
fungicidal
activity
shows
efficacy
53%
±
2%
14
days
postspraying,
whereas
effectiveness
Pyr
suspension
concentrate
only
29%
4%,
acute
toxicity
zebrafish
reduced
by
more
than
9-fold
compared
technical.
Moreover,
confocal
laser
scanning
microscopy
LNCs
can
be
bidirectionally
translocated
plants.
Therefore,
topology-regulated
LNC
great
practical
potential
sustainable
agriculture.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(3), С. 1207 - 1220
Опубликована: Янв. 10, 2024
Photoactivated
pesticides
(PPs)
have
photodynamic
antimicrobial
activities
and
show
good
environmental
compatibility
slow
resistance
development.
However,
the
disadvantages
of
easy
aggregation,
short
duration,
low
efficiency
seriously
restrict
efficient
application
PPs.
Hollow
mesoporous
copper
sulfide
nanoparticles
(HMCuS
NPs)
with
unique
optical
properties
activity
under
light
irradiation,
which
are
considered
smart
drug
delivery
carriers
due
to
their
water
dispersivity
high
encapsulation
surface
area.
Herein,
novel
acid-responsive
photoactivated
pesticide
nanocapsules
(PPs@HMCuS-CTS
were
established
by
electrostatically
coating
HMCuS
NPs
loaded
PPs
(curcumin
physcion)
chitosan
(CTS).
The
results
showed
that
obtained
had
desirable
(PDI0.25)
release
properties.
PPs@HMCuS-CTS
irradiation
was
more
than
1.47
times
those
alone
mixture
synergistic
activity.
Rainfastness,
safety
assessment,
genotoxicity
evaluation
demonstrated
deposited
1.28
on
plant
foliage
without
any
damage
crop.
Therefore,
based
potential
be
an
safe
system.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Май 14, 2024
The
flourishing
progress
in
nanotechnology
offers
boundless
opportunities
for
agriculture,
particularly
the
realm
of
nanopesticides
research
and
development.
However,
concerns
have
been
raised
regarding
human
environmental
safety
issues
stemming
from
unrestrained
use
non-therapeutic
nanomaterials
nanopesticides.
It
is
also
important
to
consider
whether
current
development
strategy
based
on
nanocarriers
can
strike
a
balance
between
investment
return,
if
complex
material
composition
genuinely
improves
efficiency,
safety,
circularity
Herein,
we
introduced
concept
with
minimizing
carriers
(NMC)
prepared
through
prodrug
design
molecular
self-assembly
emerging
as
practical
tools
address
limitations,
compared
it
employing
(NNC).
We
further
summarized
NMC
examined
potential
challenges
its
preparation,
performance,
production.
Overall,
asserted
that
systems
serve
innovative
driving
force
catalyzing
green
efficient
revolution
nanopesticides,
offering
way
out
predicament.
Nanomaterials,
Год журнала:
2024,
Номер
14(3), С. 250 - 250
Опубликована: Янв. 23, 2024
Mesoporous
silica
nanoparticles
(MSNs)
can
be
used
as
carrier
materials
for
the
controlled
release
of
pesticides
while
reducing
their
negative
environmental
impact.
In
this
study,
we
screened
an
active
ingredient,
p-cymene
(PC),
with
excellent
inhibitory
effect
on
rice
bacterial
blight.
Subsequently,
PC
was
successfully
loaded
onto
MSNs
via
physisorption
(PC@MSNs).
PC@MSNs,
characterized
by
a
regular
spherical
shape,
smooth
surface,
and
MSN
average
size
262.9
nm,
achieved
8.6%
drug
loading
capacity.
The
kinetics
from
PC@MSNs
demonstrated
sustained
(288
h)
pattern
influenced
diffusion.
efficacy
against
Xanthomonas
oryzae
pv.
Oryzae
paralleled
those
PC.
Acute
toxicity
assays
revealed
that
were
less
toxic
to
aquatic
life
(LC50
=
257.867
mg/L)
formulation
showed
no
adverse
effects
seedling
growth.
summary,
these
results
suggest
broaden
PC’s
scope
application
in
managing
diseases.
