Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(46)
Published: Oct. 4, 2023
Smart
fluorescent
materials
that
can
respond
to
environmental
stimuli
are
of
great
importance
in
the
fields
information
encryption
and
anti-counterfeiting.
However,
traditional
usually
face
problems
such
as
lack
tunable
fluorescence
insufficient
surface-adaptive
adhesion,
hindering
their
practical
applications.
Herein,
inspired
by
glowing
sucker
octopus,
we
present
a
novel
strategy
fabricate
reversible
eutectogel
with
high
transparency,
adhesive
self-healing
performance
for
conformal
Using
anthracene
luminescent
unit,
exhibits
photoswitchable
therefore
be
reversibly
written/erased
patterns
non-contact
stimulation.
Additionally,
different
from
mechanically
irreversible
adhesion
via
glue,
adhere
various
irregular
substrates
over
wide
temperature
range
(-20
65
°C)
conformally
deform
more
than
1000
times
without
peeling
off.
Furthermore,
exploiting
transparency
good
stretchability
eutectogel,
dual
achieved
under
UV
stretching
conditions
further
improve
security
level.
This
study
should
provide
promising
future
development
advanced
intelligent
anti-counterfeiting
materials.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(25)
Published: April 13, 2023
Intelligent
rewritable
display
systems
have
been
long
expected
to
reduce
the
heavy
consumption
of
single-use
or
transient
devices
in
age
Internet-of-Things.
However,
it
remains
challenging
construct
such
with
integrated
functionality
remote
control,
rapid
activation,
multicolor
and
multimode
display.
Herein,
by
learning
from
unique
multilayer
arrangement
chromatophores
chameleon
skins,
a
promising
kind
hydrogel
is
presented
that
can
combine
merits
near-infrared
(NIR)
light-writing
projecting
modes
for
on-demand
information
Specifically,
typical
layout
consisting
poly(dimethylsiloxane)
(PDMS)-sealed
carbon
nanotubes
(CNTs)
film
as
photothermal
control
unit
embedded
fluorescent
hydrogels
unit,
which
thermoresponsive
constrained
within
non-responsive
hydrogel.
Such
rational
structure
design
results
establishment
one
mechanism
via
cascading
"light
trigger-heat
generation-fluorescence
output"
process.
On
this
basis,
reversible
hand-written
arbitrary
achieved
5
s.
Also,
sustainable
light-projecting
predesigned
patterns
demonstrated
due
ensures
easy
patterning
layer.
This
study
brings
functional-integrated
novel
open
new
possibility
high-end
products
display/transmission.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(48)
Published: Oct. 11, 2023
Abstract
Information
security
has
gained
increasing
attention
in
the
past
decade,
leading
to
development
of
advanced
materials
for
anti‐counterfeiting,
encryption
and
instantaneous
information
display.
However,
it
remains
challenging
achieve
high
with
simple
procedures
low‐energy
stimuli.
Herein,
a
series
strain/temperature‐responsive
liquid
crystal
elastomers
(LCEs)
are
developed
dual‐modal,
multi‐level
real‐time,
rewritable
transient
The
as‐prepared
polydomain
LCEs
can
change
from
an
opaque
state
transparent
under
strain
or
temperature
stimuli,
transition
strains
temperatures
highly
dependent
on
concentration
long‐chain
flexible
spacers.
encrypted
by
different
LCE
inks
be
decrypted
specific
temperatures,
protection
security.
Furthermore,
combination
phase
photothermal
effect
multi‐walled
carbon
nanotubes
(MWCNTs),
we
achieved
repeatable
display
using
near‐infrared
(NIR)
light
as
pen
writing.
This
study
provides
new
insight
into
versatility
broad
applications.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: March 12, 2024
Abstract
The
interactive
flexible
device,
which
monitors
the
human
motion
in
optical
and
electrical
synergistic
modes,
has
attracted
growing
attention
recently.
incorporation
of
information
attribute
within
signal
is
deemed
advantageous
for
improving
efficiency.
Therefore,
development
wearable
information‐electronic
strain
sensors
holds
substantial
promise,
but
integrating
synergizing
various
functions
realizing
strain‐mediated
transformation
keep
challenging.
Herein,
an
amylopectin
(AP)
modified
nanoclay/polyacrylamide‐based
nanocomposite
(NC)
hydrogel
aggregation‐induced‐emission‐active
ink
are
fabricated.
Through
fluorescence‐transfer
printing
onto
film
different
strains
with
nested
multiple
symbolic
information,
a
fluorescent
sensor
developed.
In
sensor,
nanoclay
plays
“one‐stone‐three‐birds”
role,
contributing
to
“lightening”
fluorescence
(≈80
times
emission
intensity
enhancement),
ionic
conductivity,
excellent
stretchability
(>1000%).
high
biocompatibility,
resilience
(elastic
recovery
ratio:
97.8%),
sensitivity
(gauge
factor
(GF):
10.9).
Additionally,
AP
endows
skin
adhesiveness.
can
achieve
monitoring
joint
movements
while
displaying
transformation.
This
research
poses
efficient
strategy
develop
multifunctional
materials
provides
general
platform
achieving
next‐generation
devices
prospective
applications
devices,
human‐machine
interfaces,
artificial
intelligence.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
2(1)
Published: Jan. 12, 2024
Abstract
Stimuli‐responsive
fluorescent
hydrogels
are
three‐dimensional
networked
polymeric
materials
with
tunable
luminescence
and
dynamic
properties,
which
play
an
important
role
as
a
water‐rich
soft
material
in
the
fields
of
information
encryption,
bionic
actuation,
bioimaging,
environmental
monitoring,
luminescent
materials.
Compared
conventional
hydrogels,
their
unique
properties
allow
visualization
microscopic
dynamics
within
polymer
network.
By
rational
inclusion
motifs,
such
photoswitches,
AIEgens,
lanthanide
complexes,
host–guest
these
endowed
tunability
emission,
shape,
phase
time
space
response
to
effectors.
In
this
review,
we
summarize
fabrication
strategies
that
mainly
used
by
recently
reported
stimuli‐responsive
applications
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: April 16, 2024
Abstract
The
smart
materials
with
multi‐color
and
stimuli‐responsive
luminescence
are
very
promising
for
next
generation
of
optical
information
encryption
anti‐counterfeiting,
but
these
still
scarce.
Herein,
a
multi‐level
strategy
is
developed
based
on
the
polychromatic
emission
Sb‐doped
double
perovskite
powders
(SDPPs).
Cs
2
NaInCl
6
:Sb,
KInCl
AgInCl
:Sb
synthesized
through
coprecipitation
methods
exhibit
broadband
emissions
bright
blue,
cyan,
orange
colors,
respectively.
transmitted
by
specific
SDPP
encrypted
when
different
SDPPs
mixed.
confidential
can
be
decrypted
selecting
corresponding
narrowband
filter.
Then,
an
quick
response
(QR)
code
improved
security
demonstrated
this
multi‐channel
selection
strategy.
Moreover,
three
types
water‐triggered
switching
behaviors.
represented
erased/recovered
simple
water
spray/drying.
Whereas,
collected
from
green
channel
permanently
erased
moisture,
which
fundamentally
avoids
leakage.
Therefore,
schemes
designed
to
meet
variety
requirements.
multicolor
greatly
enrich
flexibility
encryption,
leaps
level
confidentiality.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(38)
Published: May 2, 2024
Abstract
Photochromic
materials
are
widely
used
in
optical
data
storage,
encryption,
and
anti‐counterfeiting
because
of
their
ability
to
be
written,
erased,
read
repeatedly.
However,
conventional
information
encryption
storage
capabilities
based
on
a
“matrix”
pattern
2D
plane
limited
fewer
dimensions,
making
less
secure.
Here,
new
concept
expanding
the
dimensions
is
presented
by
manipulating
rotation
angle
photochromic
encoding
disks
principle
absolute
encoder.
For
this
purpose,
novel
material,
NaNbO
3
:xEu
3+
developed,
with
highly
efficient
red
emission,
large
luminescence
switching
contrast,
antithermal
quenching
behavior.
The
designed
rotary
encoder
made
‐based
material
exhibits
higher‐level
than
that
encoders
unlimited
capability.
This
study
presents
exciting
opportunities
for
using
luminescent
materials.
