Functionalized cyanostilbene-based nano-AIEgens: multipoint binding interactions for improved sensing of gallic acid in real-life food samples
Journal of Materials Chemistry B,
Год журнала:
2024,
Номер
12(35), С. 8746 - 8756
Опубликована: Янв. 1, 2024
Cyano-substituted
stilbene
(CSS)
derivatives
have
been
synthesized
that
can
form
luminescent
nanoscopic
assemblies
in
an
aqueous
medium.
The
optical
properties
of
such
materials,
as
governed
by
the
relative
ratios
their
monomer
and
aggregated
forms,
are
found
to
be
susceptible
pH
temperature
compound
with
boronic
acid
attached
at
terminal
positions
shows
a
turn-on
fluorescence
response
(LOD:
15.4
ppb)
gallic
(GA).
mechanistic
studies
indicate
1,2-diol
unit
GA
is
involved
ester
formation
residue,
while
carboxylic
end
engages
hydrogen
bonding
interaction
nitrile
unit.
Such
multi-point
binding
provides
better
selectivity
over
other
structurally
similar
analytes.
Moreover,
distinct
aggregation
boronate
responsible
for
GA-specific
response.
sensory
system
has
utilized
determination
levels
tea
(green
black
tea)
various
fruit
(mango,
orange,
guava,
pomegranate)
extracts.
In
all
cases,
estimated
values
GAE
were
same
range
reported
others.
Finally,
low-cost,
chemically-modified
paper
strips
designed
rapid,
on-location
detection
GA.
Язык: Английский
Visual detection and tracking of toxic mercury in biological cells using biocompatible mesoporous silica nanospheres
Sensors and Actuators B Chemical,
Год журнала:
2024,
Номер
417, С. 136166 - 136166
Опубликована: Июнь 19, 2024
Язык: Английский
Designing Unconventional Molecular Ternary INHIBIT Logic Gate and Crafting Multifunctional Molecular Logic Systems
Monaj Karar,
Harshal V. Barkale,
Sahil D. Vasishtha
и другие.
The Journal of Physical Chemistry B,
Год журнала:
2024,
Номер
128(28), С. 6684 - 6692
Опубликована: Июль 9, 2024
The
paper
describes
an
improved
method
for
building
flexible
interswitchable
logic
gates
such
as
rare-type
molecular
ternary
INHIBIT
and
combinational
circuits
using
a
specially
designed
pyridine-end
oligo-
Язык: Английский
Reversible color changing response of pyrenylated charge-transfer probes towards Hg2+: linker-driven modulation of sensitivity and selectivity
RSC Advances,
Год журнала:
2025,
Номер
15(13), С. 9587 - 9593
Опубликована: Янв. 1, 2025
Two
easily
synthesizable
prenylated
charge
transfer
probes
with
a
terminal
pyridine
unit
were
designed.
The
compounds
differ
based
on
the
nature
of
spacer:
rigid
olefinic
(1)
and
flexible
hydrazo
(2).
Both
show
exclusive
interaction
Hg2+
ions,
leading
to
changes
in
visible
color.
Experimental
analyses
showed
that
compound
1
outperformed
2
terms
sensitivity
(A/A
0
∼
13-fold
vs.
∼2-fold)
detection
limit
(1.2
ppm
5.8
ppm),
attributed
its
linker
enhanced
binding
affinity.
Moreover,
ratiometric
responses
(r
>
0.99)
excellent
selectivity
for
demonstrated.
This
study
highlights
development
robust,
reusable,
cost-effective
tools
mercury
detection,
thus
addressing
critical
environmental
health
concerns
associated
contamination.
Environmental
robustness
was
validated
across
solvents,
counter-ions,
water
mixtures,
decreasing
efficacy
high-water-content
systems
owing
solvation
effects
probe
aggregation.
Mechanistic
studies
confirmed
nitrogen
as
primary
coordination
site
reversible
binding,
enabling
reuse.
Practical
applications
explored
using
paper
strips
modified
probes,
which
facilitated
rapid,
cost-effective,
quantitative
via
image
analysis.
Язык: Английский
Chromogenic Probes Featuring Hydroxyethyl Acetate as Metal Ion Binding Site: Selective Dual-Mode Response and Quantitative Analysis of Ag+ at Micellar Interface
M Gayathri,
Harshal V. Barkale,
D. Sriram
и другие.
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Год журнала:
2024,
Номер
703, С. 135307 - 135307
Опубликована: Сен. 7, 2024
Язык: Английский
Nanocarbon eco-hydrogel kit: on-site visual metal ion sensing and dye cleanup, advancing the circular economy in environmental remediation
The Analyst,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 26, 2024
The
naked-eye
detection
of
hazardous
pollutants
through
simple
and
cost-effective
techniques
with
greener
circular
economy
approach
is
great
interest
to
the
scientific
community
related
stakeholders
in
analytical
science.
Язык: Английский
Real-Time Optical Detection of Mercury Contamination in Drinking Water using Amphiphilic Recognition Probe at Liquid Crystal/Aqueous Interface
Analytical Methods,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
A
liquid
crystal-sensing
platform,
leveraging
N
-dodecylamine-di-thiocarbamate
(DDC),
enables
simple,
sensitive,
real-time
and
cost-effective
detection
of
mercury
in
drinking
water,
aiding
environmental
pollution
control.
Язык: Английский
Can Conformational Flexibility Influence the Self-Assembly Behavior and Sensing Efficacy of Fluorogenic Amphiphiles? A Case Study with Bisbenzimidazole based Probes
Analytical Methods,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 13, 2024
In
this
work,
we
have
explored
the
metal
ion
sensing
properties
of
two
bisbenzimidazole-based
fluorescent
probes,
that
differ
in
their
conformational
flexibility,
an
aqueous
medium.
The
compound
with
a
flexible
methyl
spacer
(1)
experienced
blue
shifts
its
absorption
and
emission
maxima
(along
turn-off
response)
upon
addition
Hg2+
ions.
On
contrary,
relatively
rigid
structure
(2)
showed
red
both
when
treated
under
similar
conditions.
Detailed
mechanistic
studies
indicated
1
formed
:
2
complex
ions,
where
pyridine
nitrogen
ends
benzimidazole
units
are
involved
coordination.
However,
for
2,
binding
stoichiometry
changed
to
ions
remained
connected
only
through
ends.
Not
did
changes
molecular
level
interactions
alter
optical
response,
but
they
also
altered
efficacy
sensing;
degree
response
was
more
prominent
than
2.
Also,
it
observed
could
dissociate
preformed
aggregated
structures
1,
while
case
promotes
aggregate
formation.
sensor
further
utilized
analysis
real-life
water
samples
detection
intracellular
conditions
(HeLa
cells).
Язык: Английский