Laser Physics,
Год журнала:
2024,
Номер
34(8), С. 085602 - 085602
Опубликована: Июнь 20, 2024
Abstract
The
escalating
threat
of
industrial
pollutants,
particularly
heavy
metals,
in
water
sources
poses
a
significant
risk
to
global
populations.
Among
these
mercury
stands
out
as
severe
contaminant
with
detrimental
health
implications.
This
paper
introduces
novel
and
efficient
method
for
the
selective
detection
ions
drinking
water,
employing
laser-induced
fluorescence
pure
rhodamine
B
sensing
probe.
achieves
low
limit
7
ppb,
closely
approaching
World
Health
Organization’s
maximum
permissible
limit.
simplicity
procedure,
coupled
use
B,
distinguishes
this
approach
from
others
relying
on
complex
chemical
procedures
derivatives
B.
mechanism
involves
quenching
due
formation
tetraiodomercurate.
Noteworthy
is
method’s
selectivity,
demonstrated
by
its
resistance
interference
common
present
(e.g.
Magnesium,
calcium,
sodium,
potassium),
ensuring
accurate
ions.
Extensive
testing
tap
samples,
considering
potential
interference,
validates
robustness
sensor,
recovery
percentages
99.25%
109.2%.
In
summary,
study
contributes
practical
solution
critical
challenge
addressing
issues
sensitivity,
on-site
applicability.
proposed
holds
promise
widespread
implementation,
enhancing
efforts
safeguard
public
ensure
safety
resources.
Molecules,
Год журнала:
2023,
Номер
28(19), С. 6960 - 6960
Опубликована: Окт. 6, 2023
Toxic
cations,
including
heavy
metals,
pose
significant
environmental
and
health
risks,
necessitating
the
development
of
reliable
detection
methods.
This
review
investigates
techniques
approaches
used
to
strengthen
sensitivity
selectivity
Schiff
base
fluorescent
chemosensors
designed
specifically
detect
toxic
metal
cations.
The
paper
explores
a
range
strategies,
functional
group
variations,
structural
modifications,
integration
nanomaterials
or
auxiliary
receptors,
amplify
efficiency
these
chemosensors.
By
improving
towards
targeted
cations
achieving
heightened
limits,
consequently,
strategies
contribute
advancement
accurate
efficient
methods
while
increasing
end-use
applications.
findings
discussed
in
this
offer
valuable
insights
into
potential
leveraging
for
monitoring
various
fields,
monitoring,
biomedical
research,
industrial
safety.
Graphical
Abstract:,The
design
of
fluorescence
sensor
for
selective
detection
Cu2+
is
very
important
as
it
part
different
biochemical
redox
system
related
to
a
number
diseases.
In
many
occasion
sensors
are
unable
detect
ions
in
aqueous
medium.
the
present
work,
we
report
rhodamine
B
type
sensing
semi
system.
The
receptors
R
have
showed
excellent
properties
at
pH
7.4
CH3CN-10
mM
HEPES
buffer
(1:1,
v/v)
solvent
emission
intensity
complexes
between
hosts
and
least
affected
by
other
competitive
metal
leading
formation
tight
host-guest
complex.
LOD
0.46161
nM
which
quite
low
compared
reported
sensors.
practical
applicability
determined
natural
water
samples.
So
this
containing
Schiff
base
compound
would
be
cost
effective
FRET
mediated
fluorogenic
Cu2+.
Critical Reviews in Analytical Chemistry,
Год журнала:
2023,
Номер
54(8), С. 3269 - 3312
Опубликована: Июль 30, 2023
AbstractMercury,
a
highly
toxic
heavy
metal,
poses
significant
environmental
and
health
risks,
necessitating
the
development
of
effective
responsive
techniques
for
its
detection.
Organic
chromophores,
particularly
small
molecules,
have
emerged
as
promising
materials
sensing
Hg2+
ions
due
to
their
high
selectivity,
sensitivity,
ease
synthesis.
In
this
review
article,
we
provide
systematic
overview
recent
advancements
in
field
fluorescent
chemosensors
detection,
including
rhodamine
derivatives,
Schiff
bases,
coumarin
naphthalene
BODIPY,
BOPHY,
naphthalimide,
pyrene,
dicyanoisophorone,
bromophenol,
benzothiazole
flavonol,
carbonitrile,
pyrazole,
quinoline,
resorufin,
hemicyanine,
monothiosquaraine,
cyanine,
pyrimidine,
peptide,
quantum/carbon
dots
probes.
We
discuss
detection
capabilities,
mechanisms,
limits
well
strategies
approaches
employed
design.
By
focusing
on
studies
conducted
between
2022
2023,
article
offers
valuable
insights
into
performance
detection.Keywords:
Chemosensorfluorescent
probeHg2+ions
AcknowledgmentsThe
author
express
sincere
gratitude
Principal
D.B.S.
(PG)
College
Dehradun,
Uttarakhand,
India,
generously
providing
necessary
facilities.
Additionally,
would
like
acknowledge
invaluable
support
received
from
Central
Library
at
IIT
Roorkee,
which
enabled
access
comprehensive
resources
greatly
contributed
completion
review.Disclosure
statementThe
authors
declare
no
conflicts
interest.
environmental
studies
that
assessed
the
abundance
of
microplastics
in
different
water
columns
[8].Release
nanoplastics
from
drinking
bottles
was
characterized
by
SEM,
XPS,
SPES
and
µ-Raman
Analysis
[9].Spherical
organic
nanoparticles
bottled
were
collected
effectively
through
a
tangential
flow
ultrafiltration
system
[10].Polyethylene
terephthalate
commercially
detected
with
an
average
mean
size
88
nm;
their
concentration
estimated
to
be
10
8
particles/mL
nanoparticle
tracking
analysis
[11].A
new
study
has
reported
levels
micro-and
nano-particles
released
carbonated
beverage
range
68
4.7×10
particles/L,
potentially
posing
health
risks
humans.Polypropylene
more
particles
than
polyethylene
[12].The
occurrence
nano-plastics
(with
particle
diameters
0.7
20
μm)
plastic
been
assessed,
median
359
ng
L
-1
.Polyethylene
most
polymer,
while
found
at
highest
concentrations
[13].The
content
microplastic
nanoplastic
raw
water,
tap
analyzed.Plastic
all
samples,
ranging
204
336
particles/L
22
33
25
73
[14].Pyrolysis
gas
chromatography-mass
spectrometry
Critical Reviews in Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 13
Опубликована: Ноя. 26, 2024
Fluorescent
sensors
reflect
information
such
as
the
concentration
or
content
of
analysis
by
interacting
with
a
specific
recognition
group
to
change
signal
fluorophore.
It
has
attracted
much
attention
because
its
advantages
high
sensitivity,
fast
detection
speed
and
low
cost,
it
become
an
effective
alternative
traditional
methods.
Graphitic
phase
carbon
nitride
nanosheets
(g-CNNs)
are
class
carbon-based
fluorescent
nanomaterials
derived
from
bulk
graphite
(g-C3N4),
which
have
scholars
their
simple
fabrication,
quantum
yield,
strong
stability
nontoxicity.
Functional
modified
g-CNNs
can
greatly
improve
photocatalytic
performance.
At
present,
although
there
been
some
researches
on
based
g-CNNs.
Nevertheless,
few
reviews
about
g-CNNs-based
sensors.
Therefore,
in
addition
summarizing
sensing
mechanism
(such
photoinduced
electron
transfer,
fluorescence
resonance
energy
intramolecular
charge
transfer)
disadvantages
common
substances,
this
paper
focused
application
progress
field
detection.
