Chemical Reviews,
Год журнала:
2024,
Номер
124(20), С. 11242 - 11347
Опубликована: Окт. 9, 2024
Biopsy,
including
tissue
and
liquid
biopsy,
offers
comprehensive
real-time
physiological
pathological
information
for
disease
detection,
diagnosis,
monitoring.
Fluorescent
probes
are
frequently
selected
to
obtain
adequate
on
processes
in
a
rapid
minimally
invasive
manner
based
their
advantages
biopsy.
However,
conventional
fluorescent
have
been
found
show
aggregation-caused
quenching
(ACQ)
properties,
impeding
greater
progresses
this
area.
Since
the
discovery
of
aggregation-induced
emission
luminogen
(AIEgen)
promoted
advancements
molecular
bionanomaterials
owing
unique
high
quantum
yield
(QY)
signal-to-noise
ratio
(SNR),
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(13)
Опубликована: Фев. 1, 2022
Monotonous
luminescence
has
always
been
a
major
factor
limiting
the
application
of
organic
room-temperature
phosphorescence
(RTP)
materials.
Enhancing
and
regulating
intermolecular
interactions
between
host
guest
is
an
effective
strategy
to
achieve
excellent
performance.
In
this
study,
halogen
bonding
(CN⋅⋅⋅Br)
was
introduced
into
host-guest
RTP
system.
The
interaction
promoted
intersystem
crossing
stabilized
triplet
excitons,
thus
helping
strong
emission.
addition,
weak
sensitive
external
stimuli
such
as
heat,
mechanical
force,
X-rays.
Therefore,
excitons
were
easily
quenched
colorimetric
multi-stimuli
responsive
behaviors
realized,
which
greatly
enriched
functionality
This
method
provides
new
platform
for
future
design
materials
based
on
molecules.
Advanced Materials,
Год журнала:
2021,
Номер
34(22)
Опубликована: Окт. 1, 2021
Abstract
Organic
semiconductors
can
be
designed
and
constructed
in
π‐stacked
structures
instead
of
the
conventional
π‐conjugated
structures.
Through‐space
interaction
(TSI)
occurs
optoelectronic
materials.
Thus,
unlike
electronic
coupling
along
conjugated
chain,
functional
groups
stack
closely
to
facilitate
spatial
electron
communication.
Using
motifs,
chemists
materials
scientists
find
new
ways
for
constructing
with
aggregation‐induced
emission
(AIE),
thermally
activated
delayed
fluorescence
(TADF),
circularly
polarized
luminescence
(CPL),
room‐temperature
phosphorescence
(RTP),
as
well
enhanced
molecular
conductance.
devices
based
on
molecules
have
exhibited
very
promising
performance,
some
them
exceeding
analogues.
Recently,
reports
various
organic
grown
rapidly,
prompting
this
review.
Representative
scaffolds
newly
developed
systems
could
stimulate
more
attention
through‐space
charge
transfer
well‐known
through‐bond
transfer.
Finally,
opportunities
challenges
utilizing
improving
particular
are
discussed.
The
previous
achievements
upcoming
prospects
may
provide
insights
into
theory,
materials,
field
semiconductors.
Advanced Materials,
Год журнала:
2021,
Номер
34(16)
Опубликована: Дек. 6, 2021
Diarylethene
(DAE)
photoswitch
is
a
new
and
promising
family
of
photochromic
molecules
has
shown
superior
performance
as
smart
trigger
in
stimulus-responsive
materials.
During
the
past
few
decades,
DAE
achieved
leap
from
simple
to
functional
developed
toward
validity
universal
switching
building
block.
In
recent
years,
introduction
into
an
assembly
system
been
attractive
strategy
that
enables
behavior
blocks
be
manifested
at
level
entire
system,
beyond
unit
itself.
This
assembly-based
will
bring
many
unexpected
results
promote
design
manufacture
generation
advanced
Here,
advances
fabrication
diarylethene
materials
science,
chemistry,
biomedicine
are
reviewed.
Abstract
Carbon
dots
(CDs)
possess
outstanding
luminescence
properties,
making
them
widely
used
in
optical
displays,
anti‐counterfeiting
systems,
bioimaging,
and
sensors.
Presently,
there
is
much
debate
about
the
classification
of
CDs,
as
well
their
formation
process,
structure,
fluorescence
mechanisms.
Aggregation
plays
an
important
role
(e.g.,
aggregation‐induced
emission)
yet
seldom
studied
detail.
This
review
aims
fill
this
knowledge
gap,
by
first
exploring
how
aggregation
leads
to
different
types
CDs
graphene
quantum
dots,
carbon
carbonized
polymer
dots),
followed
a
detailed
examination
effect
morphology
on
properties
application
CDs.
Finally,
opportunities
challenges
for
various
applications
are
discussed,
with
need
better
mechanistic
understanding
being
imperative.
Achieving
high-contrast
tricolor
emissive
regulation
of
a
single-component
molecule
using
single
type
external
stimulus
is
highly
desirable
but
challenging.
In
the
present
study,
we
report
symmetric
acceptor-donor-acceptor
(A-D-A)–type
aggregation-induced
emission-active
luminogen,
which
displays
sequential
fluorescence
switching
just
by
anisotropic
mechanical
grinding.
Specifically,
upon
light
grinding,
an
orange–yellow-to-blue
hypsochromic
mechanofluorochromic
response
with
distinct
color
contrast
(change
in
maximum
emission
wavelength,
Δλ
em,max
=
122
nm)
noticed,
and
slightly
ground
solid
exhibits
blue-to-red
(Δλ
185
bathochromic
conversion
vigorous
Thus,
luminogen
developed
here,
can
realize
wide-range
>
100
hypso-
mechanochromisms
simultaneously.
The
tricolored
phenomenon
attributed
to
two
different
morphological
transitions
involving
crystalline-to-crystalline
crystalline-to-amorphous
states.
Furthermore,
three
information
anticounterfeiting
systems
are
presented
here.
ACS Sensors,
Год журнала:
2022,
Номер
7(9), С. 2521 - 2536
Опубликована: Сен. 1, 2022
Fluorescence
sensing
can
not
only
identify
a
target
substrate
qualitatively
but
also
achieve
the
purpose
of
quantitative
detection
through
change
fluorescence
signal.
It
has
advantages
immense
sensitivity,
rapid
response,
and
excellent
selectivity.
The
proposed
aggregation-induced
emission
(AIE)
concept
solves
problem
traditional
fluorescent
molecules
becoming
weak
or
quenched
in
high
concentration
aggregated
state
conditions.
Schiff
base
probes
have
simple
synthesis,
low
toxicity,
easy
design.
They
are
often
used
for
various
substances.
In
this
review
we
cover
late
developments
compounds
with
AIE
characteristics
working
as
sensors.
Advanced Functional Materials,
Год журнала:
2022,
Номер
32(20)
Опубликована: Фев. 18, 2022
Abstract
With
the
booming
of
information
technology,
considerable
progress
has
been
witnessed
in
storage
carriers,
accompanied
by
soaring
capacity.
3D
codes
as
an
emerging
carrier
attracted
wide
attention.
However,
it
is
challenging
for
conventional
to
transform
their
encoded
information,
restricting
applications.
Due
rich
color
characteristics
and
various
stimuli
responsiveness,
fluorescent
materials
can
be
utilized
construct
stimuli‐responsive
code
systems
that
exhibit
pattern
changes
upon
specific
external
stimuli,
thereby
realizing
transformation.
According
type
several
kinds
are
classified
summarized,
including
pH
ion
light
electricity
time
some
separate
multiple
responsiveness.
This
review
summarizes
recent
systems,
elaborates
on
how
they
realize
transformation,
analyzes
potential
applications,
puts
forward
perspectives
further
development
this
field.
The
authors
anticipate
provide
guidelines
design
novel
promote
science
technology.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(37)
Опубликована: Июль 16, 2022
Dynamic
patterns
based
on
luminescent
materials
play
an
essential
role
in
the
digital
age.
However,
it
is
still
challenging
to
develop
highly
emissive
photofluorochromic
with
dynamic
behaviors
store
information
multiple
characteristics.
Here,
we
report
a
series
of
dihydroazulene-based
compounds
which
show
typical
aggregation-induced
emission
(AIE)
effect.
Moreover,
photo-switching
ability
dihydroazulene
units,
undergoing
light-induced
ring-opening,
enables
properties.
The
photofluorochromism
also
shows
quantitively
described
responses
time
and
temperature
via
reverse
ring-closing
process.
Ultimately,
rewritable
4D
system,
embedded
quick
response
code,
dot
matrix
microstructures,
color
fluorescence,
time/temperature-dependent
intensity
change,
established
patterns.
This
work
not
only
develops
AIE
skeleton
properties
but
provides
new
strategy
for
encryption
cybernetics.
Chemistry - A European Journal,
Год журнала:
2022,
Номер
29(11)
Опубликована: Дек. 22, 2022
The
preparation
of
multifunctionalized
luminophores
with
full-color
emission
based
on
an
identical
core
skeleton
is
a
significative
but
challenging
research
topic.
In
this
work,
eight
donor-donor-acceptor
(D-D-A)-type
luminogens
central
carbazole
bearing
C6
hydrocarbon
chain
were
designed
by
using
different
kinds
donor
and
acceptor
units
the
left
right,
synthesized
in
good
yields.
These
D-D-A
derivatives
display
deep-blue,
sky-blue,
cyan,
green,
yellow-green,
yellow,
orange
red
fluorescence
solid
state,
achieving
covering
whole
visible
light
range
under
UV
illumination.
Notably,
dicyano-functionalized
triphenylamine-containing
derivative
exhibits
rare
aggregation-induced
near-infrared
red-to-near-infrared
mechano-fluorochromism
high
contrast
beyond
100
nm.
Furthermore,
red-emissive
luminogen
can
serve
as
potential
candidate
for
cell
imaging
photodynamic
therapy
(PDT).
This
work
not
only
provides
reference
construction
emissive
systems
also
opens
new
avenue
to
capable
simultaneous
application
near-Infrared
mechanical-force
sensors
PDT
fields.