Sensors & Diagnostics,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
4,4-Diaryloxy-BODIPYs
were
presented
for
fluorescence
turn-on
detection
of
sarin
in
solution
media.
A
compact
tubular
sensor
and
a
sensing
platform
prototype
fabricated
situ
real
agents
simulants
at
the
sub-mM
level.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Pathogenic
bacterial
infections
pose
a
significant
threat
to
human
life,
health,
and
socioeconomic
development,
with
those
arising
from
Escherichia
coli
(E.
coli)
O157:H7
being
particularly
concerning.
Herein,
customized
aggregation-induced
emission
luminogens
(AIEgen)-based
signaling
tags
(TPA-galactose)
were
combined
microfluidic
chip
for
the
determination
of
E.
O157:H7.
TPA-galactose
undergoes
hydrolysis
by
β-galactosidase,
resulting
in
formation
highly
fluorescent
TPA–OH
AIE
characteristics.
Phages
covalently
bound
surface
magnetic
beads
specifically
capture
lyse
O157:H7,
releasing
endogenous
fluorescence
intensity
facilitates
The
process
achieves
sensitivity
45
CFU/mL
min,
requiring
no
DNA
extraction
or
amplification,
utilizing
minimal
sample
volume,
enabling
accurate
one-stop
quantification
live
This
strategy
enables
rapid
on-site
environmental,
food,
clinical
samples,
significantly
enhancing
public
health
safety.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 13, 2024
The
innovation
of
synthetic
strategies
for
selective
B-H
functionalization
is
a
pivotal
objective
in
the
realm
boron
cluster
chemistry.
However,
precise,
efficient,
and
rapid
bond
carboranes
that
distant
from
existing
functional
groups
remains
intractable
owing
to
limited
approaches
site-selective
control
established
methods.
Herein,
we
report
dative
bonding
activation
strategy
nonclassical
remote
site
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(9), P. 4608 - 4616
Published: Aug. 8, 2024
Efficient
and
reliable
technologies
for
the
on-site
detection
of
illicit
drugs
are
important
in
drug-facilitated
crime
investigations.
However,
development
such
is
challenging.
Based
on
synthetic
optimization,
introducing
a
boron
ester
functional
group
to
two
furanic
indicators
endows
stimulus-responsive
properties
synergistically.
The
ring-opening
reaction
presence
amine-containing
generated
well-known
donor-acceptor
Stenhouse
adducts,
accompanied
by
strong
color
changes.
A
small-size
lightweight
laminated
sensor
was
integrated
based
outstanding
ratiometric
variations
active
indicators.
prototype
platform
fabricated
equipped
with
circuit
control,
mini
pump,
signal
processing
system.
user-friendly
efficient
screening
drugs,
including
phenethylamines,
amphetamines,
cathinones,
tryptamines
liquid
states
were
conducted.
response
linear
concentration
range
2.1-10.6
μg·mL
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Abstract
High‐performance
film‐based
sensors
are
key
innovations
driving
advancements
in
sensing
technologies.
An
ultra‐sensitive
formic
acid
sensor
based
on
a
polymer
fluorescent
nanofilm
synthesized
via
interfacial
assembly
using
tetraphenylethylene
derivative
functionalized
with
aldehyde
and
hydroxyl
groups
is
reported.
These
promote
imine
bond
formation
enhance
selectivity.
The
nanofilm,
prepared
through
dynamic
condensation
4,4′‐diaminodiphenyl
ether
at
the
air‐DMSO
interface,
exhibits
excellent
luminescence,
flexibility,
tunable
surface
topography.
Its
bright
fluorescence
primarily
due
to
aggregation‐induced
emission
(AIE)
property
hydrogen
bonding
interactions
within
film
structure.
Imines
serve
as
recognition
sites
for
acid,
where
weak
alters
electronic
environment
of
groups,
blocking
proton
donors
(─OH)
promoting
non‐radiative
decay,
leading
selective
quenching.
achieves
an
ultra‐low
detection
limit
550
ppt,
rapid
response
time
0.3
s,
reversibility.
It
also
demonstrates
high
selectivity
over
other
VOCs,
making
it
suitable
real‐time
monitoring.
Additionally,
nanofilm's
multimodal
capabilities,
including
responses
HCl
NH
3
,
highlight
its
potential
diverse
environmental
industrial
applications.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
17(9), P. 14623 - 14633
Published: Feb. 21, 2025
Photoluminescence
efficiencies
of
covalent
organic
frameworks
(COFs)
are
significantly
restricted
by
electron
delocalization
and
charge
transfer
among
the
conjugated
skeletons.
Two
nanofilms
using
tetraphenylethylene
benzo[c][1,2,5]thiadiazole
as
building
blocks
were
facilely
prepared
via
an
interfacially
confined
condensation
strategy.
The
distinct
dipole
moment
orientations
imine
linkages
involved
in
π-delocalization
donor-acceptor
systems
diversely.
They
also
played
critical
roles
affecting
fluorescence
turn-on
sensing
obtained
for
gaseous
trifluoroacetic
acid
(TFA).
joint
donor-C═N-acceptor
sequence
nanofilm
#2
resulted
relatively
stronger
originally
than
that
#1,
featuring
disturbed
donor-N═C-acceptor
sequence.
While
after
blowing
trace
TFA,
latter
#1
possessed
prominent
enhancement
obvious
color
visualization.
Comparative
transient
absorption
observations
theoretical
calculations
elucidated
effective
manipulation
intramolecular
(ICT)
imine-linked
functional
With
help
a
laminated
fluorescent
sensor,
compact
platform
was
further
integrated
optimized
#1.
It
exhibited
good
selectivity,
excellent
reversibility
(≥50
recycles),
extraordinary
detection
limit
(∼0.1
ppt),
rapid
recovery
process
to
TFA.
Our
findings
provide
valuable
optimizations
π-linkages
COFs
reliable
film
sensors
monitoring
toxic
hazardous
gases.
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 3389 - 3396
Published: March 26, 2025
It
is
challenging
to
predict
optical
properties
of
fluorescent
dyes,
especially
in
the
crystalline
state,
owing
uncertainty
conformation,
packing,
and
coupling.
Herein,
we
elucidate
decisive
role
molecular
conformation
packing
fluorescence
emissions
some
materials
based
on
experimental
results
theoretical
calculations.
Two
homologous
fluorophores
(Ph-MP
Ph-HP)
were
synthesized,
they
both
exhibited
interesting
crystallization-induced
emission
enhancement
quenching.
Although
homologues
show
almost
same
behavior
solid
on-off
their
crystals
depends
upon
different
factors.
Emission
Ph-MP
governed
by
twisted
intramolecular
charge
transfer
effect,
while
Ph-HP
relied
π-π
stacking.
Based
this
understanding,
application
single-molecule-based
versatile
information
encryption
was
demonstrated.
believed
that
evidence
unveiled
mechanism
for
effect
crystallization
will
contribute
development
high-performance
luminescent
materials.