Chemical Physics Impact,
Journal Year:
2023,
Volume and Issue:
7, P. 100388 - 100388
Published: Nov. 25, 2023
Nanoparticle
(NP)
systems
with
controllable
and
adjustable
response
sensor
characteristics
are
promising
for
the
colorimetric
sensing
of
heavy
metal
ions
in
aqueous
systems.
In
this
article,
uniform
gold
nanoparticles
(AuNPs)
a
mean
diameter
31.16
±
6.67
nm
have
been
achieved
inexpensive
easily
affordable
differential
centrifugation
technique.
Thereafter,
they
deployed
Ni(II)
determination.
Plant
phytochemicals
(mostly
GC,
EGC,
CG
ECG
polyphenols)
that
exist
as
natural
reducing
agents
mature
green
tea
leaves
were
explored
synthesized
AuNPs.
Subsequently,
various
spectroscopic
imaging
methods
such
UV-Vis
spectroscopy,
X-ray
diffractometer
(XRD),
field
emission
transmission
electron
microscopy
(FETEM),
photoelectron
spectroscopy
(XPS)
applied
greater
insight
into
morphological
structural
method
The
ability
AuNPs
ionic
identification
tap
water
system
(0.001
to
1
mg/L)
has
quantified
terms
limit
detection
(LOD)
quantification
(LOQ)
values
0.001
0.005
mg/L
respectively.
Furthermore,
metal-ligand
interaction
between
resulted
noticeable
shift
color,
from
pink
(λmax=
528
nm)
purple
hue
556
nm).
FETEM
analysis
assured
clustering
tendencies
upon
exposure
ions.
XPS
conveyed
coordination
positively
charged
surface-bound
negative
functional
groups
(–OH,
C=O)
These
findings
confirmed
practical
relevance
application
potential
sensory
system.
Biosensors,
Journal Year:
2023,
Volume and Issue:
13(3), P. 335 - 335
Published: March 2, 2023
Biothiols,
such
as
cysteine
(Cys),
homocysteine
(Hcy),
and
glutathione
(GSH),
play
a
vital
role
in
gene
expression,
maintaining
redox
homeostasis,
reducing
damages
caused
by
free
radicals/toxins,
etc.
Likewise,
abnormal
levels
of
biothiols
can
lead
to
severe
diseases,
Alzheimer’s
disease
(AD),
neurotoxicity,
hair
depigmentation,
liver/skin
damage,
To
quantify
the
biological
system,
numerous
low-toxic
probes,
fluorescent
quantum
dots,
emissive
organic
composited
nanomaterials,
etc.,
have
been
reported
with
real-time
applications.
Among
these
carbon-dots
(CDs)
become
attractive
for
quantification
because
advantages
easy
synthesis,
nano-size,
crystalline
properties,
low-toxicity,
applicability.
A
CDs-based
assay
be
achieved
“Turn-On”
“Turn-Off”
responses
via
direct
binding,
metal
complex-mediated
detection,
composite
enhanced
interaction,
reaction-based
reports,
so
forth.
date,
availability
review
focused
on
detection
information
recent
trends,
mechanistic
aspects,
linear
ranges,
LODs,
real
applications
is
lacking,
which
allows
us
deliver
this
comprehensive
review.
This
delivers
valuable
carbon-dots-based
assays,
underlying
mechanism,
their
applications,
probe/CDs
selection,
sensory
requirement,
merits,
limitations,
future
scopes.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(8), P. 2504 - 2504
Published: April 13, 2024
Recently,
the
utilization
of
metal
halide
perovskites
in
sensing
and
their
application
environmental
studies
have
reached
a
new
height.
Among
different
perovskites,
cesium
lead
(CsPbX3;
X
=
Cl,
Br,
I)
composites
attracted
great
interest
applications
owing
to
exceptional
optoelectronic
properties.
Most
CsPbX3
nanostructures
possess
structural
stability,
luminescence,
electrical
properties
for
developing
distinct
optical
photonic
devices.
When
exposed
light,
heat,
water,
can
display
stable
utilities.
Many
been
reported
as
probes
detection
diverse
analytes,
such
ions,
anions,
important
chemical
species,
humidity,
temperature,
radiation
photodetection,
so
forth.
So
far,
covering
all
metallic
organic–inorganic
already
reviewed
many
studies.
Nevertheless,
detailed
review
utilities
could
be
helpful
researchers
who
are
looking
innovative
designs
using
these
nanomaterials.
Herein,
we
deliver
thorough
composites,
quantitation
chemicals,
explosives,
bioanalytes,
pesticides,
fungicides,
cellular
imaging,
volatile
organic
compounds
(VOCs),
toxic
gases,
radiation,
photodetection.
Furthermore,
this
also
covers
synthetic
pathways,
design
requirements,
advantages,
limitations,
future
directions
material.
ACS Omega,
Journal Year:
2023,
Volume and Issue:
8(40), P. 37293 - 37301
Published: Sept. 29, 2023
In
this
study,
we
employed
tannic
acid
(TA)-functionalized
silver
nanoparticles
(TA@AgNPs)
as
colorimetric
probe
for
the
simultaneous
and
sensitive
detection
of
Al(III)
F-
ions.
The
proposed
sensor
was
based
on
aggregation
anti-aggregation
effects
target
ions
TA@AgNPs,
respectively.
Because
strong
coordination
bond
between
TA,
addition
to
TA@AgNPs
could
cause
and,
hence,
result
in
a
significant
change
absorption
color
test
solution.
Interestingly,
presence
ions,
effect
can
be
effectively
prevented.
extent
concentration-dependent
used
quantitative
as-proposed
presented
F
with
limits
(LOD)
0.2
0.19
μM,
addition,
showed
excellent
applicability
real
water
samples.
Moreover,
sensing
strategy
offered
simple,
rapid,
procedure
potential
alternative
conventional
methods,
which
usually
involve
sophisticated
instruments,
complicated
processes,
long
time.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(14), P. 4919 - 4947
Published: Jan. 1, 2024
Nanomaterial-based
sensors
have
emerged
as
promising
candidates
for
iodide
ion
sensing
owing
to
their
unique
properties,
such
high
surface
area,
tunable
chemistry,
and
excellent
electrical/optical
characteristics.
