ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(5), P. 4456 - 4466
Published: Jan. 26, 2024
Metal
halide
perovskites
offer
ample
opportunities
to
develop
advanced
optoelectronic
devices.
This
work
showcases
that
the
integration
of
metal
into
oxide
nanoshells
with
controllable
interior
cavities
can
enable
water-vapor-responsive
dual-mode
switching
fluorescence
and
structural
color.
Through
a
ship-in-a-bottle
method
introduce
controlled
amount
CsPbBr3
MnO2
nanoshells,
we
have
designed
CsPbBr3@MnO2
yolk–shell
nanostructures,
which
uptake
defined
water
exhibit
rapid
(less
than
1
s)
reversible
(≥100
cycles)
responses
in
both
on–off
color
change
when
exposed
dynamic
vapor.
These
originate
from
water-triggered
phase
transformation
CsPb2Br5
shell.
The
altered
electronic
bonding
structure
at
oxide–halide
interface,
accumulation
cavity,
protective
effect
shell
facilitate
transformations.
response
characteristics
nanostructures
been
further
demonstrated
fabricating
patterned
films
capable
multiple
fluorescence/structural
responses,
highlighting
their
potential
for
applications
anticounterfeiting
encryption.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
53(2), P. 606 - 623
Published: Dec. 15, 2023
This
review
highlights
the
recent
advances
and
discusses
challenges
perspectives
of
stimulus-responsive
polymer
(SRP)-based
information-storage
materials,
which
exhibit
multi-mode
or
multi-level
anti-counterfeiting
performance.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(33)
Published: June 2, 2022
Abstract
Designing
a
sustainable
security
model
that
carries
multilevel
information
with
numerous
optical
states
will
significantly
enhance
anti‐counterfeiting
abilities
to
deter
counterfeits,
ranging
from
artworks,
currencies,
and
foods
medicines,
but
is
enormously
challenging.
Herein,
ambient‐friendly,
large‐area,
quadruple‐level,
chiral
luminescent
materials
are
prepared
by
incorporating
lanthanide
complexes
wrapped
in
poly(ethylene
glycol)
matrix
into
nematic
cellulose
nanocrystal
(CNC)
films
through
co‐assembly
strategy.
Due
the
regulation
of
structures,
composite
enable
full‐color
structural
colors
tunable
fluorescence.
Notably,
brightest
fluorescent
film
radiates
right‐handed
circularly
polarized
luminescence
an
asymmetric
factor
over
−0.36,
lifetime
up
510
µs,
absolute
quantum
yield
66.7%.
More
interestingly,
fascinating
chiro‐optical
behavior
azure
khaki
can
be
controlled
polarizing
filter
at
given
0°
90°
rotation
angles.
This
system
showcases
comprehensive
properties
bright
responsive
photoluminescence,
quadruple
convertible
color,
flexible
solvent‐resistant
abilities.
CNC‐derived
photonic
material
act
as
multimodal
label
on
banknote,
which
greatly
facilitates
its
development
for
practical
applications.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(7)
Published: Dec. 9, 2022
Abstract
Although
the
encrypted
anti‐counterfeiting
technology
based
on
infiltration‐controlled
photonic
crystals
has
attracted
widespread
attention,
information
only
hidden
and
display
states.
The
more
diverse
complex
encryption
effect
requires
a
continuous
programmable
color
transformation.
Inspired
by
dynamic
camouflage
in
chameleons
cephalopods,
thermochromic
patterned
film
is
developed
for
anti‐counterfeiting,
which
constructed
infiltrating
thermoresponsive
poly(oligo
ethylene
glycol
acrylate)
copolymers
SiO
2
‐coated
ZnS
crystals.
responsive
temperature
range
determined
lower
critical
solution
of
filled
copolymers,
tunable
controlling
ratios
different
monomers
copolymerization.
Based
this,
adjusted
to
5–55
°C
decoding
set
at
20
°C.
pattern
either
when
water
>55
or
<5
Only
accurately
matches
(20
°C),
do
areas
preset
colors,
resulting
complete
being
revealed.
design
this
indicates
new
direction
technology,
can
carry
abundant
encrypt
them
sophisticated.
The Journal of Physical Chemistry Letters,
Journal Year:
2022,
Volume and Issue:
13(13), P. 2885 - 2900
Published: March 25, 2022
Structural
color
has
been
regarded
as
an
ideal
alternative
to
pigments
because
of
the
advantages
environmental
friendliness,
resistance
fading,
and
dynamic
regulation.
Responsive
structural
can
give
real-time
visible
feedback
external
stimuli
thus
great
prospects
in
many
applications,
such
displays,
sensing,
anticounterfeiting,
information
storage,
healthcare
monitoring.
In
this
Perspective,
we
elucidate
basic
concepts,
controllable
fabrications,
promising
applications
responsive
colors.
particular,
systematically
summarize
general
regulation
mode
all
kinds
systems.
First,
introduce
chromogenic
structures
well
modes
color.
Second,
present
fabrication
methods
patterned
Then,
systems
are
highlighted
detail.
Finally,
existing
challenges
future
perspectives
on
ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(12), P. 14618 - 14629
Published: March 17, 2022
Photochromic
materials
are
widely
investigated
due
to
their
vivid
color
transformation
for
many
real
applications.
In
this
work,
a
new
kind
of
multiangle
photochromic
photonic
crystal
(PC)
material
with
high
robustness
and
long
durability
smart
phone
decoration
anticounterfeiting
features
is
fabricated.
After
thermal
mixing
spiropyran
powder
monodisperse
core-interlayer-shell
(CIS)
particles,
large-area
high-quality
PC
film
has
been
prepared
by
the
self-designed
bending-induced
ordering
technique
(BIOT).
The
can
be
well
dispersed
in
order-structured
system,
so
perfect
synergistic
combination
photochromism
angle-dependent
structure
colors
achieved.
color-switching
test
as-prepared
proved
its
excellent
reversibility
stability.
Because
flexibility
photo-cross-linked
films,
they
designed
cut
into
various
shapes
durability.
Interestingly,
temperature-controlled
effect
was
found
system.
Therefore,
films
play
significant
role
fields
unique
switching
effects
under
different
stimuli.
More
importantly,
our
work
verified
feasibility
route
prepare
series
large-sized
advanced
devices
adding
versatile
functional
materials.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(14)
Published: March 22, 2023
Hard-healing
diabetic
wound
brings
burgeoning
physical
and
mental
burdens
to
patients.
Current
treatment
strategies
tend
achieve
multistage
promotion
real-time
reporting
facilitate
management.
Herein,
a
biomimetic
enzyme
cascade
inverse
opal
microparticles
system
for
healing,
which
is
intergated
with
glucose
oxidase
(GOD)
copper
peroxide
(CP).
Such
are
composed
of
biofriendly
hyaluronic
acid
methacryloyl
(HAMA)
pH-responsive
acrylic
(AA),
provided
abundant
binding
sites
spaces
chemical
immobilizing
doping
enzymes
metal
bioinorganics.
When
the
catalytic
applied
on
sites,
hyperglycemia
environment
would
serve
as
hydrogen
(H2
O2
)
generator
through
GOD
catalysis,
while
acidic
triggers
decomposition
CP,
further
catalyzing
H2
generate
reactive
oxygen
species
(ROS).
Additionally,
distinctive
structural
color
can
visually
reflect
pH
intelligently
estimate
healing
state.
It
demonstrated
that
such
microparticle
systems
exhibit
excellent
broad-spectrum
antibacterial
angiogenesis-promoting
properties,
well
significant
ability
healing.
These
features
indicate
possess
valuable
potential
in
related
field.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(11), P. 10269 - 10279
Published: May 31, 2023
Vaccines
are
undoubtedly
a
powerful
weapon
in
our
fight
against
global
pandemics,
as
demonstrated
the
recent
COVID-19
case,
yet
they
often
face
significant
challenges
reliable
cold
chain
transport.
Despite
extensive
efforts
to
monitor
their
time–temperature
history,
current
indicators
(TTIs)
suffer
from
limited
reliability
and
stability,
such
difficulty
avoiding
human
intervention,
inapplicable
subzero
temperatures,
narrow
tracking
temperature
ranges,
or
susceptibility
photobleaching.
Herein,
we
develop
class
of
structural
color
materials
that
harnesses
dual
merits
fluidic
nature
color,
enabling
thermal-triggered
visible
destruction
based
on
triggering
agent-diffusion-induced
irreversible
disassembly
liquid
colloidal
photonic
crystals
for
indicating
history
These
self-destructive
liquids
(SCLs)
exhibit
inherent
irreversibility,
superior
sensitivity,
tunable
time
(minutes
days),
wide
range
(−70
+37
°C).
Such
SCLs
can
be
conveniently
packaged
into
flexible
TTIs
monitoring
storage
exposure
status
diverse
vaccines
via
naked-eye
inspection
mobile
phone
scanning.
By
overcoming
shortcomings
conventional
responsive
crystals,
these
increase
compatibility
with
transport
hold
promise
development
application
next-generation
intelligent
crystals.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(28)
Published: May 14, 2024
Abstract
Constructing
an
anti‐counterfeiting
material
with
non‐interference
dual
optical
modes
is
effective
way
to
improve
information
security.
However,
it
remains
challenging
achieve
multistage
secure
encryption
due
the
limited
stimulus
responsiveness
and
color
tunability
of
current
dual‐mode
materials.
Herein,
a
hydrogel
both
independently
tunable
structural
fluorescent
colors
toward
encryption,
reported.
In
this
system,
rigid
lamellar
structure
poly(dodecylglyceryl
itaconate)
(pDGI)
formed
by
shear
flow‐induced
self‐assembly
provides
restricted
domains
wherein
monomers
undergo
polymerization
form
network,
producing
color.
The
introduction
monomer
6‐acrylamidopicolinate
(6APA)
as
complexation
site
possibility
formation.
hydrogel's
angle‐dependent
can
be
controlled
adjusting
crosslinking
density
water
content.
Additionally,
fluorescence
modulated
ratio
lanthanide
ions.
Information
displayed
separately
in
different
channels
synergistically
overlayed
read
ultimate
message.
Thus,
system
based
on
devised
through
programed
decryption
process.
This
strategy
holds
tremendous
potential
platform
for
encrypting
safeguarding
valuable
authentic
field
anti‐counterfeiting.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(26)
Published: April 10, 2024
Manipulation
of
periodic
micro/nanostructures
in
polymer
film
is
great
importance
for
academics
and
industrial
applications
anticounterfeiting.
However,
with
the
increasing
demand
on
information
security,
materials
time-dependent
features
are
urgently
required,
especially
material
where
same
can
appear
more
than
once
time
scale.
Here,
one
concise
strategy
to
realize
anticounterfeiting
"double-lock"
encryption
based
a
host-guest
system
proposed,
photoresponsive
azopolymer
as
host
liquid-crystalline
molecule
guest.
The
exhibits
tunable
mass
transport
pre-designed
by
tailoring
process
cis-to-trans
recovery
azo
groups
assembly
mesogenic
trans-isomers,
resulting
dynamic
structural
color
film.
Taking
advantage
this
extraordinary
feature,
has
been
achieved.
More
importantly,
each
state's
appearance
whole
be
modulated
changing
ratio.
Combining
manipulatable
unique
decoding
method,
stored
decrypted
correctly.
This
work
provides
an
unprecedented
approach
advanced
technology
higher
level
security
high-end
encryption.
