Journal of Polymer Science,
Год журнала:
2024,
Номер
62(15), С. 3497 - 3510
Опубликована: Май 10, 2024
Abstract
A
series
of
novel
π‐conjugated
polymers
bearing
alternating
coumarin
and
phenylene
units
in
the
main
chain
backbone
was
synthesized
via
Sonogashira
coupling
reaction.
The
red‐shifts
absorption
maxima
indicate
expansion
system
polymer
chains.
These
exhibited
strong
green
fluorescence
organic
solvents.
Clearly
perceptible
dual‐color
halochromic
confirmed
for
by
significantly
reversible
changes
emission
color
from
to
blue
during
alkalization
acidification
processes.
lactone
ring
opening
closing
property
molecule
functioned
as
a
controllable
switch,
broadening
applications
coumarin‐based
acid–base
responsive
materials.
Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(48)
Опубликована: Май 11, 2023
Sensing
of
low-pressure
signals
is
great
importance
for
cutting-edge
technologies.
Organic
piezochromic
molecules
offer
a
promising
library
pressure
sensitive
materials
which
can
be
tailor-designed
toward
specific
requirements.
However,
very
few
examples
fluorescent
have
been
obtained
till
date,
and
the
underlying
mechanisms
are
still
in
its
infancy.
Herein,
we
report
highly
switching
under
regimes
(∼60
kPa)
tetraphenylethylene-anthraquinone
(TPE-AQ)
based
on
controlled
molecular
design
polymorphic
phase
strategy.
The
influence
both
intramolecular
conformation
effect
variations
intermolecular
stacking
modes
property
TPE-AQ
investigated.
mechanism
fluorescence
demonstrated
to
closely
related
loosely
packed
orientation,
as
confirmed
by
X-ray
diffraction
measurements
combined
with
simulations.
This
work
provides
way
efficient
sensors
organic
systems.
Abstract
Despite
exhaled
human
breath
having
enabled
noninvasive
diabetes
diagnosis,
selective
acetone
vapor
detection
by
fluorescence
approach
in
the
diabetic
range
(1.8–3.5
ppm)
remains
a
long‐standing
challenge.
A
set
of
water‐resistant
luminescent
metal‐organic
framework
(MOF)‐based
composites
have
been
reported
for
detecting
with
limit
200
ppb.
The
materials
possess
ability
to
selectively
detect
from
mixture
comprising
nitrogen,
oxygen,
carbon
dioxide,
water
vapor,
and
alcohol
which
are
prevalent
breath.
It
is
noteworthy
that
this
first
MOF
material
capable
via
turn‐on
mechanism.
can
be
reused
within
matter
minutes
under
ambient
conditions.
Industrially
pertinent
electrospun
fibers
likewise
fabricated
alongside
various
films
ultratrace
quantities
present
air.
Ab
initio
theoretical
calculations
combined
situ
synchrotron‐based
dosing
studies
uncovered
material's
remarkable
hypersensitivity
toward
vapor.
Finally,
freshly
designed
prototype
fluorescence‐based
portable
optical
sensor
utilized
as
proof‐of‐concept
rapid
range.
Materials Technology,
Год журнала:
2024,
Номер
39(1)
Опубликована: Фев. 1, 2024
Keratoprosthesis
(K-Pro)
implantation
and
postoperative
recovery
often
lead
to
severe
ocular
infections
called
keratoprosthesis-associated
(KPAI).
Antibiotics
are
commonly
used;
however,
prolonged
antibiotic
use
can
bacterial
resistance
disrupt
microbial
balance
in
the
eye.
Borneol
provides
possibilities
for
developing
antibiotic-independent
antimicrobial
K-Pro.
Therefore,
development
of
an
self-antimicrobial
K-Pro
is
crucial
management.
Herein,
electrospinning
technology
was
employed
fabricate
a
soluble
borneol-based
antibacterial
coating
on
surfaces
management
keratoprosthesis
implantation.
The
modified
exhibited
distinctive
nanofibrous
morphology
(100%
borneol
release
ratio
within
125
min),
surface
properties
(Escherichia
coli:
2%,
Staphylococcus
aureus:
6%),
biocompatibility,
negligible
cytotoxicity
towards
epithelial
cells.
This
study
aimed
explore
potential
application
camphor-based
electrospun
coatings
field
infection
resistance,
thereby
providing
novel
strategies
material
foundations
effective
KPAI.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 24, 2025
Abstract
Aggregation-induced
emission
(AIE)
is
a
unique
phenomenon
where
certain
organic
materials
exhibit
enhanced
luminescence
in
their
aggregated
states,
overcoming
the
typical
quenching
observed
conventional
materials.
Since
its
discovery
2001,
AIE
has
driven
significant
advances
fields
like
OLEDs
and
biological
imaging,
earning
recognition
fundamental
research.
However,
application
high-energy
radiation
detection
remains
underexplored.
Organic
scintillators,
though
widely
used,
face
challenges
such
as
low
light
yield
poor
attenuation.
offer
promising
solutions
by
improving
yield,
response
speed,
This
review
summarizes
design
strategies
behind
scintillators
very
recent
applications
X-ray,
γ-ray,
fast
neutron
detection.
We
highlight
advantages
enhancing
sensitivity,
reducing
background
noise,
achieving
high-resolution
imaging.
By
addressing
current
challenges,
we
believe
will
play
pivotal
role
advancing
future
imaging
technologies.
Organic Chemistry Frontiers,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Six
dendritic
AIEgens
exhibiting
self-assembly
and
three
distinct
types
of
force-responsive
emissive
features
are
developed,
two
advanced
information
security
systems
constructed.
Advanced Sensor Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 14, 2025
Abstract
Residual
antibiotics
threaten
ecosystems
and
public
health
by
fostering
antibiotic
resistance
water
contamination.
To
address
this,
PQx‐Ph,
a
water‐soluble
conjugated
polyelectrolyte,
is
developed
as
selective
fluorescent
probe
for
detection.
The
sulfonate‐functionalized
architecture
of
PQx‐Ph
facilitates
the
molecular
co‐assembly
with
antibiotics,
resulting
in
fluorescence
responses
through
antibiotic‐selective
distinct
mechanisms,
i.e.,
aggregation‐induced
emission
(AIE)
twisted
intramolecular
charge
transfer
(TICT).
These
mechanisms
enable
1)
quenching
upon
kanamycin
(KAN)
due
to
electrostatic
binding
2)
enhancement
erythromycin
(ERY)
hydrophobic
interactions
TICT
stabilization.
exhibits
remarkable
selectivity
toward
KAN,
demonstrating
strong
minimal
interference
from
various
competing
substances.
matrix‐dependent
sensing
performance,
achieving
nanomolar‐level
KAN
detection
(LOD
=
0.021
µ
m
)
mild
environments
containing
low
levels
natural
organic
matter
(NOM),
maintaining
reliable
micromolar‐level
sensitivity
0.37–1.44
environmentally
complex
matrices
such
synthetic
urine,
tap
water,
NOM‐rich
samples.
Given
its
excellent
solubility,
environmental
stability,
structural
adaptability,
emerges
promising
candidate
real‐time
monitoring
Future
integration
into
portable
platforms
will
broaden
applications
monitoring.
