Small,
Journal Year:
2023,
Volume and Issue:
20(5)
Published: Sept. 27, 2023
Abstract
Resolution
control
and
expansibility
have
always
been
challenges
to
the
fabrication
of
structural
color
materials.
Here,
a
facile
strategy
print
cholesteric
liquid
crystal
elastomers
(CLCEs)
into
complex
patterns
with
variable
resolution
enhanced
is
reported.
A
volatile
solvent
introduced
synthesized
CLC
oligomers,
modifying
its
rheological
properties
allowing
direct‐ink‐writing
(DIW)
under
mild
conditions.
The
combination
printing
shear
flow
anisotropic
deswelling
ink
drives
molecules
an
ordered
arrangement.
authors
meticulously
investigate
influence
parameters
achieve
over
wide
range,
for
multi‐sized
1D
or
2D
constant
quality.
Furthermore,
such
solvent‐cast
highly
expandable
can
be
integrated
easily
DIW
bionic
robots.
Multi‐responsive
butterfly
flower
are
printed
biomimetic
in
both
locomotion
coloration.
Such
designs
dramatically
reduced
processing
difficulty
precise
full‐color
expanded
capability
materials
collaborate
other
systems.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: May 25, 2023
Materials
with
phototunable
full-color
circularly
polarized
luminescence
(CPL)
have
a
large
storage
density,
high-security
level,
and
enormous
prospects
in
the
field
of
information
encryption
decryption.
In
this
work,
device-friendly
solid
films
color
tunability
are
prepared
by
constructing
Förster
resonance
energy
transfer
(FRET)
platforms
chiral
donors
achiral
molecular
switches
liquid
crystal
photonic
capsules
(LCPCs).
These
LCPCs
exhibit
photoswitchable
CPL
from
initial
blue
emission
to
RGB
trichromatic
signals
under
UV
irradiation
due
synergistic
effect
chirality
show
strong
time
dependence
because
different
FRET
efficiencies
at
each
node.
Based
on
these
response
characteristics,
concept
multilevel
data
using
LCPC
is
demonstrated.
Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
15(1)
Published: Nov. 28, 2022
Abstract
In
nature,
many
living
organisms
exhibiting
unique
structural
coloration
and
soft-bodied
actuation
have
inspired
scientists
to
develop
advanced
colored
soft
actuators
toward
biomimetic
robots.
However,
it
is
challenging
simultaneously
biomimic
the
angle-independent
color
shape-morphing
capabilities
found
in
plum-throated
cotinga
flying
bird.
Herein,
we
report
MXene-based
with
that
are
fabricated
through
controlled
self-assembly
of
colloidal
SiO
2
nanoparticles
onto
highly
aligned
MXene
films
followed
by
vacuum-assisted
infiltration
polyvinylidene
fluoride
into
interstices.
The
resulting
exhibit
brilliant,
color,
as
well
ultrafast
recovery
speeds
(a
maximum
curvature
0.52
mm
−1
can
be
achieved
within
1.16
s,
a
time
~
0.24
s)
response
acetone
vapor.
As
proof-of-concept
illustrations,
applied
demonstrate
blue
gripper-like
bird’s
claw
capture
target,
artificial
green
tendrils
twine
around
tree
branches,
an
multicolored
butterfly
flutter
its
wings
upon
cyclic
exposure
strategy
expected
offer
new
insights
development
multifunctional
for
somatosensory
robotics
next-generation
intelligent
machines.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(42)
Published: Sept. 2, 2022
Developing
bioinspired
camouflage
materials
that
can
adaptively
change
color
in
the
visible
and
infrared
(IR)
regions
is
an
intriguing
but
challenging
task.
Herein,
we
report
emerging
strategy
for
fabricating
dynamic
IR
by
controlled
situ
growth
of
novel
photopolymerizable
blue
phase
liquid
crystals
with
cubic
nanoarchitectures
onto
highly
aligned
MXene
nanostructured
thin
films.
The
resulting
MXene-integrated
3D
soft
photonic
exhibit
vivid
structural
colors
reversible
switching
between
a
bright
colored
state
dark
black
under
low
DC
electric
field.
As
illustration,
proof-of-concept
pixelated
devices
allow
pixel-controllable
electrochromism
are
demonstrated.
Furthermore,
free-standing
electrochromic
flexible
film
such
fabricated,
where
thermal
enabled
leveraging
superior
electrothermal
conversion
mid-IR
emissivity
nanomaterials.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(43)
Published: Oct. 25, 2023
Endowing
three-dimensional
(3D)
displays
with
flexibility
drives
innovation
in
the
next-generation
wearable
and
smart
electronic
technology.
Printing
circularly
polarized
luminescence
(CPL)
materials
on
stretchable
panels
gives
chance
to
build
desired
flexible
stereoscopic
displays:
CPL
provides
unusual
optical
rotation
characteristics
achieve
considerable
contrast
ratio
wide
viewing
angle.
However,
lack
of
printable,
intense
suitable
for
processing
hinders
implementation
3D
devices.
Here,
we
report
a
controllable
macroscopic
production
printable
CPL-active
photonic
paints
using
designed
confining
helical
co-assembly
strategy,
achieving
maximum
dissymmetry
factor
(glum)
value
1.6.
We
print
customized
graphics
meter-long
luminous
coatings
these
range
substates
such
as
polypropylene,
cotton
fabric,
polyester
fabric.
then
demonstrate
textile
display
panel
two
printed
sets
pixel
arrays
based
orthogonal
emission,
which
lays
an
efficient
framework
future
intelligent
clothing.
Deleted Journal,
Journal Year:
2023,
Volume and Issue:
1(1)
Published: July 23, 2023
Abstract
Circularly
polarized
luminescent
(CPL)
materials
have
received
significant
attention
in
the
field
of
fundamental
science
recently.
These
offer
substantial
advancement
technological
applications,
such
as
optical
data
storage,
displays,
and
quantum
communication.
Various
strategies
been
proposed
self‐assembled
consisting
inorganic,
organic,
hybrid
systems,
particularly
chiral
orientationally
ordered
soft
matter
systems
(e.g.,
liquid
crystals
(LCs)
LC
polymers).
However,
developing
scientific
approaches
to
achieve
pronounced
steerable
circularly
light
emission
remains
challenging.
Herein,
we
present
a
comprehensive
review
on
recent
development
CPL
based
LCs,
including
thermotropic
LCs
(cholesteric
bent‐core
LCs),
lyotropic
(nanocellulose
polyacetylene‐based
polymers
LC‐based
polymers,
helical
nanofibers,
network).
In
addition,
mechanisms,
design
principles,
potential
applications
these
are
systematically
reviewed.
This
summarizes
with
prospect
latent
challenges,
which
can
strengthen
our
understanding
basic
principles
provide
new
insight
into
progress
several
fields,
chemistry,
science,
optics,
electronics,
biology.
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
11(6)
Published: Jan. 19, 2023
Abstract
Chiral
materials
capable
of
generating
circularly
polarized
luminescence
(CPL)
have
gained
rapidly
growing
research
interest
by
virtue
their
peculiar
photophysical
characteristics
and
far‐reaching
applications.
Amongst
various
CPL
materials,
polymer‐based
constituted
an
important
class
owing
to
abundant
types,
ease
manufacture,
high
thermal
stability,
as
well
as,
tunable
properties.
The
present
work
reviews
the
latest
advances
in
constructing
which
are
classified
based
on
interaction
modes
between
chiral
luminescent
components,
that
is,
covalent
interaction,
non‐covalent
without
interactions.
newly
emerging
categories
nonconventional
fluorescence‐based
room
temperature
phosphorescence,
with
thermally
activated
delayed
fluorescence
properties
also
presented.
Typical
applications
emitters
organic
light‐emitting
diodes,
information
security
encryption,
optical
sensors
further
discussed.
Additionally,
current
challenges
future
perspectives
this
field
summarized.
This
review
article
is
expected
stimulate
more
unprecedented
achievements
derived
from
thus
promoting
practical
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(29)
Published: April 6, 2023
Stimulus-responsive
materials
that
display
circularly
polarized
luminescence
(CPL)
have
attracted
great
attention
for
application
in
chiral
sensors
and
smart
displays.
However,
due
to
difficulties
the
regulation
of
structures,
fine
control
CPL
remains
a
challenge.
Here,
it
is
demonstrated
cellulose
nanocrystal
shape-memory
polymers
(CNC-SMPs)
with
luminescent
components
enable
mechanically
responsive
CPL.
The
nematic
organization
CNCs
material
gives
rise
photonic
bandgap.
By
manipulating
bandgap
or
wavelengths
CNC-SMPs,
precise
emission
varied
high
dissymmetry
factors
(glum
)
achieved.
Specifically,
can
be
switched
reversibly
by
treating
CNC-SMPs
hot-pressing
recovery
heating.
Pressure-responsive
tunable
glum
values
ascribed
pressure-responsive
bandgaps.
Moreover,
colorimetric
CPL-active
patterns
are
created
imprinting
desired
forms
into
SMP
samples.
This
study
demonstrates
novel
way
fabricate
systems
using
biomaterials.
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
11(1), P. 217 - 226
Published: Oct. 20, 2023
Ionic
conductive
cholesteric
liquid
crystal
elastomers
with
dynamic
color-changing
and
electrical
sensing
functions
were
developed
through
the
integration
of
polymer
ionic
networks.
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
10(8), P. 2824 - 2844
Published: Jan. 1, 2023
This
review
provides
a
comprehensive
summary
of
humidity-responsive
liquid
crystalline
systems,
ranging
from
the
mechanism
and
preparation
systems
to
application
emerging
materials.
Deleted Journal,
Journal Year:
2023,
Volume and Issue:
2(1)
Published: Dec. 11, 2023
Abstract
Compared
with
traditional
rigid
actuators,
soft
actuators
exhibit
a
large
number
of
advantages,
including
enhanced
flexibility,
reconfigurability,
and
adaptability,
which
motivate
us
to
develop
artificial
widespread
applications.
Soft
MXene
nanomaterials
are
regarded
as
highly
promising
candidates
for
advancing
the
development
bioinspired
robotics
consequence
their
unprecedented
physicochemical
characteristics,
such
high
electronic
conductivity,
thermal
photothermal
conversion
capability,
abundant
surface
functional
groups.
Herein,
comprehensive
overview
recent
advancement
extensive
applications
from
perspective
bioinspiration
is
provided.
First,
synthetic
methods
properties
briefly
summarized.
Subsequently,
(including
photoresponsive
electroresponsive
chemoresponsive
actuators)
sequentially
investigated
focus
on
fabrication
approaches,
actuation
properties,
underlying
mechanisms,
At
end,
future
challenges
opportunities
rapid
discussed.
