Chemistry - An Asian Journal,
Journal Year:
2024,
Volume and Issue:
19(21)
Published: Aug. 13, 2024
Abstract
Fluorescence
sensors
for
complicated
molecules
such
as
pesticides
were
paid
much
attention
lately
due
to
the
merits
of
simple
operation,
high
sensitivity
and
selectivity,
in‐situ
detection.
In
this
work,
a
novel
fluorescent
sensor
pesticide
starane
was
prepared
based
on
imidazolium‐decorated
bis‐cyanostilbene
macrocycle
(
IBM
).
exhibited
obvious
“turn‐on”
fluorescence
change
from
dark
blue‐green
bright
blue
after
sensing
with
selectivity
among
28
kinds
guests.
The
detecting
limitation
low
0.011
μM,
which
lowest
one
in
literatures.
mechanism
confirmed
that
located
cavity
molecular
interaction
multiple
hydrogen
bonds,
π‐π
stacking
hydrophobic
interaction.
application
experiments
suggested
examined
well
test
paper
good
quantitatively
detected
water
samples,
implying
real‐time
potential
real
environment
daily
life.
Journal of Agricultural and Food Chemistry,
Journal Year:
2024,
Volume and Issue:
72(40), P. 21959 - 21972
Published: Sept. 27, 2024
Pesticides
are
extensively
utilized
in
contemporary
agriculture
to
manage
pests,
enhance
crop
yields,
and
sustain
productivity.
Nevertheless,
the
persistent
herbicide
represents
a
dual-edged
weapon.
On
one
hand,
their
prolonged
efficacy
enables
reduced
application
frequency
during
growth
seasons,
resulting
cost
savings
on
labor.
However,
presence
of
these
residues
within
fields
poses
safety
risks
soil
quality,
sensitive
crops
subsequent
rotations,
agricultural
product
ecological
environment.
This
review
presents
comprehensive
mechanisms
action,
risks,
ecotoxicology,
residue
analysis
methods
nine
representative
herbicides
(namely,
atrazine,
imazethapyr,
imazapic,
mesosulfuron-methyl,
halosulfuron-methyl,
fomesafen,
diflufenican,
quinclorac,
pyroxasulfone).
The
objective
is
guide
scientific
rational
utilization
practices
while
minimizing
phytotoxicity
effectively
monitoring
controlling
pollution.
These
can
not
only
provide
practical
recommendations
for
mitigating
potential
plant
toxicity
environmental
but
also
contribute
valuable
technical
insights
efficient
pollution
prevention.
Additionally,
unaddressed
research
objectives
were
anticipated.
Triclopyr
2-butoxyethyl
ester
is
a
usual
pesticide,
however,
its
excessive
use
might
pose
risks
to
environmental
safety.
The
rapid,
simple
and
in-situ
detecting
method
for
triclopyr
of
great
importance
but
rarely
reported.
In
this
work,
the
first
fluorescent
sensor
was
developed
based
on
derivative
n-butyl-1,8-naphthimide
Schiff-base
(NSB).
NSB
typical
AIE
molecule
with
good
green
fluorescence
in
DMSO-H2O
(5:95).
transferred
into
strong
blue
sensing
ester.
high
selective
detection
observed
among
26
kinds
normal
metallic
ions
pesticide
molecules.
limitation
as
low
2.89×10-7
M.
mechanism
confirmed
1:1
stoichiometric
ratio
multiple
hydrogen
bonding
hydrophobic
interactions.
applied
real
samples
wheat
seedlings,
sugarcane
broadleaf
weedane
water
tap
Minjiang
River,
suggesting
excellent
application
potential
simple,
rapid
daily
environments.
