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.
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(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.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 25, 2024
Abstract
Integrating
optically
active
components
into
chiral
photonic
cellulose
to
fabricate
circularly
polarized
luminescent
materials
has
transformative
potential
in
disease
detection,
asymmetric
reactions,
and
anticounterfeiting
techniques.
However,
the
lack
of
cellulose‐based
left‐handed
light
(L‐CPL)
emissions
hampers
progress
these
functionalizations.
Here,
this
work
proposes
an
unprecedented
strategy:
incorporating
a
nematic
organization
hydroxypropyl
with
robust
aggregation‐induced
emission
luminogens
generate
intense
L‐CPL
emission.
By
utilizing
N
,
‐dimethylformamide
as
good
solvent
for
fluorescent
matrices,
produces
right‐handed
structure
film
uniform
appearance
reflective
states.
Remarkably,
system
integrates
high
factor
(0.51)
impressive
quantum
yield
(55.8%)
one
fascinating
composite.
More
meaningfully,
approach
is
versatile,
allowing
incorporation
luminogen
derivatives
emitting
multicolored
L‐CPL.
These
films
possess
exceptional
mechanical
flexibility
(toughness
up
0.9
MJ
m
−3
)
structural
stability
even
under
harsh
environmental
exposures,
making
them
promising
fabrication
various
products.
Additionally,
can
be
cast
on
fabrics
reveal
multilevel
durable
capabilities
or
used
source
induce
enantioselective
photopolymerization,
thereby
offering
significant
diverse
practical
applications.
Advanced Science,
Journal Year:
2022,
Volume and Issue:
10(5)
Published: Dec. 11, 2022
Exploring
high-safety
but
convenient
encryption
and
decryption
technologies
to
combat
threats
of
information
leakage
is
urgently
needed
remains
a
great
challenge.
Here,
synergistically
time-
temperature-resolved
coding/decoding
solution
based
on
functional
photonic
inks
demonstrated.
Encrypted
messages
can
be
stored
into
multiple
channels
with
dynamic-color
patterns,
only
enabled
at
appointed
temperature
time
points.
Notably,
the
ink
easily
processed
quick-response
codes
multipixel
plates.
With
high
transparency
responsive
color
variations
controlled
by
compositions
ambient
temperatures,
advanced
3D
stacking
multichannel
coding
Morse
techniques
applied
for
multi-information
storage,
complex
anticounterfeiting,
interference.
This
study
paves
an
avenue
design
development
dynamic
high-end
anticounterfeiting
applications.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(19)
Published: March 14, 2024
Abstract
1D
photonic
crystals
(1DPCs)
with
hierarchically
structured
lamellar
periodic
frameworks
that
enable
precise
control
of
light‐matter
interactions
and
contribute
robust
structural
colors
represent
a
groundbreaking
advancement
in
optical
materials.
The
microstructural
characteristics
the
constituent
material
properties
these
materials
play
pivotal
roles
determining
their
performance
functionality.
In
recent
years,
diverse
array
novel
structures
crafted
from
various
emerged,
showcasing
tremendous
potential
advanced
applications.
This
article
provides
an
in‐depth
review
developments
1DPCs,
emphasizing
morphological
designs,
fabrication
strategies,
detail,
1DPCs
featuring
distinct
geometrical
morphologies,
including
lamellar,
helical,
fibrous,
spherical,
nanochained
are
systematically
introduced,
highlighting
unique
arising
microstructures.
Then,
methods,
involving
some
innovative
techniques
utilizing
standing‐wave
optics,
UV
dual
photopolymerization,
inkjet
printing,
succinctly
summarized
for
constructing
different
by
using
building
Subsequently,
typical
application
examples
listed
discussed
visual
sensing,
intelligent
displays,
anti‐counterfeiting
technology,
pigments,
devices.
Finally,
passage
addresses
current
challenges
presents
forward‐looking
perspective
on
future
1DPCs.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(4), P. 3627 - 3635
Published: Jan. 12, 2024
Structural
color
is
a
fascinating
optical
phenomenon
arising
from
intricate
light-matter
interactions.
Biological
structural
colors
natural
polymers
are
invaluable
in
biomimetic
design
and
sustainable
construction.
Here,
we
report
renewable,
abundant,
biodegradable
cellulose-derived
organic
gel
that
generates
stable
cholesteric
liquid
crystal
structures
with
vivid
colors.
We
construct
the
chromatic
using
68
wt
%
hydroxypropyl
cellulose
(HPC)
matrix,
incorporating
distinct
polyethylene
glycol
(PEG)
guest
molecules.
The
PEGs
contain
peculiar
end
groups
tailored
polarity,
allowing
for
precise
positioning
on
HPC
helical
backbone
through
electrostatic
repulsion
between
PEG
chains.
This
preserves
HPC's
chiral
nematic
phase
without
being
disrupted.
demonstrate
PEGs'
polarity
tunes
gel's
reflective
color.
Additionally,
gels
variable
polarities
highly
sensitive
to
temperature,
pressure,
stretching,
resulting
rapid,
continuous,
reversible
changes.
These
exceptional
dynamic
traits
establish
as
an
outstanding
candidate
next-generation
applications
across
displays,
wearables,
flexible
electronics,
health
monitoring,
multifunctional
sensors.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 6, 2025
Optical
multiplexing
technologies,
which
integrate
multiple
optical
channels
based
on
photonic
structures,
offer
a
significant
solution
for
high-capacity
information
storage
and
advanced
encryption.
However,
these
materials
are
limited
by
their
inherent
unswitchable
chiral
result
in
restricted
control
over
the
spatial
distribution
of
light.
Here,
we
propose
to
construct
an
integrating
optical-multiplexed
structure
using
tunable
1D
crystals
orientation
texture
via
combined
self-assembly
shear-aligning
approach.
In
this
system,
created
diverse
ethyl
cellulose
(EC)
offers
wide
range
light
modulations
through
phase
retardation.
When
with
chromatic
layer
formed
EC,
wavelength
polarization
achieved.
Notably,
due
identical
components
modulation
crystal
layers,
traceless
interface
between
them
ensures
both
high
confidentiality
durability.
By
leveraging
hierarchical
slices
well-defined
states
structural
colors
created,
enabling
construction
platform
multiplexed
multichannel
3D
4D
This
study
presents
promising
strategy
develop
traceless,
highly
confidential
units
controllable
color
encryption
technologies.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(2)
Published: Sept. 26, 2023
Abstract
The
escalating
need
for
enhanced
cryptographic
security
necessitates
the
development
of
advanced
materials
designed
secure
storage
and
transmission
information.
Drawing
inspiration
from
unique
color‐altering
polarizing
capabilities
beetles,
this
work
develops
a
transparent,
thermochromic,
circularly
polarized
cholesteric
phase
cellulose
composite
(CPCC).
This
is
achieved
by
integrating
self‐assembled
hydroxypropyl
with
liquid
crystal
(CLC)
structure
in
tandem
crosslinked
poly(N‐isopropyl
acrylamide)
(PNIPAM)
network.
crosslinking
density
impacts
response
degree
thermochromism,
which
can
be
regulated
modifying
UV
exposure
time
during
PNIPAM
production.
CLC
CPCC
uniquely
results
reflected
right
light.
When
coupled
waveplates,
mechanism
inverts
rotation
direction
light,
creating
orthogonal
structural
colors
different
brightness
levels
under
left
excellent
transparency
facilitates
seamless
integration
environment,
offering
optimal
camouflage.
Sophisticated
techniques,
such
as
color
coding
Morse
coding,
further
incorporated
within
to
increase
encryption
complexity
decryption.
Collectively,
CPCC's
transparency,
chirality
present
significant
potential
design
high‐security
information
encryption,
contributing
valuable
insights
field.
