Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(35), P. 24561 - 24569
Published: Aug. 20, 2024
The
long-range
supramolecular
interactions
in
liquid
crystals
(LCs)
can
be
used
to
amplify
and
subsequently
propagate
microscopic
structural
changes
into
macroscopic
events.
Here,
we
report
on
a
systematic
structure–property
analysis
using
16
chiral
photoswitchable
dopants
composed
of
bistable
hydrazones
isosorbide
moieties.
Our
findings
showcase
the
relationship
between
dopant's
structure
its
helical
twisting
power
(β),
hence,
photophysical
properties
host
LC.
We
show
that
an
increase
hydrazone
CNNH
dihedral
angle
results
β
value,
while
alkoxy
chains
do
not
lead
such
increase.
These
contradict
established
rules
thumb,
stating
rigidity
long
alky
are
needed
for
high
values.
also
found
position
substitution,
whether
at
2′
or
5′
positions
unit,
attachment
unit
rotor
stator
phenyl
units
have
negative
positive
additive
effects
either
decrease
made
us
hypothesize
unsymmetrically
functionalized
should
result
large
Δβ
values,
which
corroborated
experimentally.
Moreover,
fluorine-functionalized
dopant
resulted
higher
overall
most
likely
because
π–π
interactions.
Finally,
were
modulating
locking
reflective
LC
films,
yielding
multicolor
canvases
reflect
light
from
ultraviolet
infrared
range
(i.e.,
manipulation
up
ca.
1500
nm
reflected
light).
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(29)
Published: May 6, 2024
Abstract
Chirality,
a
fundamental
principle
in
chemistry,
biology,
and
medicine,
is
prevalent
nature
organisms.
Chiral
molecules,
such
as
DNA,
RNA,
proteins,
are
crucial
biomolecular
synthesis,
well
the
development
of
functional
materials.
Among
these,
1,1′‐binaphthyl‐2,2′‐diol
(BINOL)
stands
out
for
its
stable
chiral
configuration,
versatile
functionality,
commercial
availability.
BINOL
widely
employed
asymmetric
catalysis
This
review
mainly
focuses
on
recent
research
over
past
five
years
concerning
use
derivatives
constructing
macrocycles
cages.
Their
contributions
to
luminescence,
enantiomeric
separation,
transmembrane
transport,
were
examined.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(22), P. 28638 - 28644
Published: May 24, 2024
Photoresponsive
liquid
crystals
are
promising
materials
for
sunlight-driven
smart
windows,
which
can
automatically
change
their
optical
states
in
response
to
sunlight
and
control
energy
flow
between
the
inside
outside
of
a
building.
Herein,
liquid-crystalline
systems
developed
that
show
transparent-scattering
transition
upon
irradiation
with
wide
temperature
range.
Push–pull
azobenzenes
axial
chirality
have
been
newly
as
photochromic
chiral
dopants
allow
changes
mesostructures
sunlight.
To
realize
switching,
photoinert
compounds
opposite
handedness
helical
twisting
doped
crystals.
This
crystalline
sample
compensated
nematic
phase
is
transparent
its
initial
state.
Upon
sunlight,
this
transforms
scattering
state
due
formation
along
photoisomerization
azobenzene
moieties
power.
After
cease
irradiation,
reverts
through
thermal
back
isomerization
moieties.
system
significantly
improves
operating
range
windows
based
on
crystals:
transparent–scattering
observed
at
4–42
°C.
The
present
mechanism
allows
development
autonomous
wireless
adaptable
various
environments.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Visual,
sensitive,
and
selective
detection
of
carcinogenic
substances
is
highly
desired
in
portable
health
protection
practical
medicine
production.
However,
achieving
this
goal
presents
significant
challenges
with
the
traditional
single-mode
sensors
reported
so
far,
as
they
have
limited
sensing
mechanisms
provide
only
a
single
output
signal.
Here,
we
report
an
effective
optical
electrical
dual-mode
sensor
for
visual,
Deleted Journal,
Journal Year:
2023,
Volume and Issue:
1(2)
Published: Oct. 18, 2023
Abstract
Dissipative
self‐assembly
(DSA)
system
requires
a
continuous
supply
of
fuels
to
maintain
the
far‐from‐equilibrium
assembled
state.
Living
organisms
exist
and
operate
far
from
thermodynamic
equilibrium
by
consumption
energy
taken
surroundings,
so
how
realize
construction
artificial
DSA
has
attracted
much
attention
researchers
all
over
world.
Owing
dynamic
controllable
noncovalent
interactions,
supramolecular
systems
have
achieved
higher
functions
fueled
various
types
energy,
such
as
chemical
fuels,
light,
electric
acoustic
mechanical
energy.
Upon
input
external
nonactive
precursors
can
be
activated
form
building
blocks
at
levels
then
self‐assemble
into
transient
structures.
As
proceeding
deactivation
reaction,
with
level
dissipate
back
initial
precursors,
resulting
in
disassembly
process,
complete
full
cycle.
In
this
review,
we
summarize
recent
advances
on
its
strategies
energy‐fueled
regulation
approaches.
The
applications
luminescence
modulating,
information
encryption,
self‐regulating
gels,
drug
delivery,
catalysis
are
also
discussed.
We
hope
that
review
article
will
facilitate
further
understanding
development
systems.
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(20)
Published: Feb. 1, 2024
Abstract
Recently,
extensive
works
have
focused
on
increasing
the
dissymmetry
factors
(
g
lum
)
of
various
circularly
polarized
luminescence
(CPL)
materials,
which
is
one
most
important
for
future
applications
CPL.
Herein,
we
designed
a
chiral
co‐assembled
liquid
crystal
polymer
(LCP)
PTZ@
R/S
‐PB2
,
was
prepared
by
binary
co‐polymer
doped
with
achiral
phenothiazine
derivation
dye
PTZ
).
For
comparison,
ternary
co‐polymerized
LCP
‐PT
synthesized
co‐polymerizing
mesogenic
monomer,
monomer
and
emissive
monomer.
Both
showed
aggregation‐induced
emission
(AIE)
properties.
Interestingly,
CPL
signals
both
were
reversed
amplified
after
thermal
annealing
treatment.
The
|
values
up
to
0.13
at
32
nm
thickness,
5.4
times
that
(|
|=0.024).
This
due
could
form
more
orderly
co‐assembly
structures.
Noticeably,
film
thickness
further
improve
value,
maximum
be
enhanced
+0.91/−0.82
220
thickness.
Abstract
Wavelength-tunable
structural
colors
using
stimuli-responsive
materials,
such
as
chiral
liquid
crystals
(CLCs),
have
attracted
increasing
attention
owing
to
their
high
functionality
in
various
tunable
photonic
applications.
Ideally,
on-demand
omnidirectional
wavelength
control
is
highly
desirable
from
the
perspective
of
wavelength-tuning
freedom.
However,
despite
numerous
previous
research
efforts
on
CLC
colors,
only
mono-directional
tuning
toward
shorter
wavelengths
has
been
employed
most
studies
date.
In
this
study,
we
report
ideally
desired
longer
and
with
significantly
improved
tunability
over
a
broadband
range.
By
areal
expanding
contractive
strain
dielectric
elastomer
actuators
(DEAs)
crystal
elastomers
(CLCEs),
simultaneous
color-tuning
was
achieved.
This
breakthrough
enhances
achievable
freedom
versatility,
making
it
applicable
broad
range
high-functional
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(33)
Published: April 18, 2024
Abstract
Intelligent
actuators
have
attracted
intensive
attention
due
to
their
broad
application
scenarios,
ranging
from
precision
manufacturing
and
autonomous
robotics
adaptive
medical
devices.
Therein,
simplifying
structure
design
streamlining
fabrication
processes
for
responsive
materials
is
crucial
achieving
multifunctionality
in
intelligent
actuators.
Drawing
inspiration
nature,
diverse
stimuli‐responsive
been
developed,
enabling
the
creation
of
a
spectrum
Herein,
study
aims
provide
systematic
overview
smart
with
different
based
on
biomimetic
strategies.
The
commences
by
describing
typical
stimulus‐response
organisms
subsequently
categorizing
nascent
materials,
summarizing
respective
mechanisms.
Potential
applications
integrated
into
all‐in‐one
systems
are
presented
grippers,
soft
robots,
sensors.
Finally,
ends
an
advancement
summary
together
personal
insight
current
challenges
future
directions.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
Molecular
photoswitches
can
undergo
isomerization
under
light
exposure,
making
them
uniquely
attractive
for
high
spatiotemporal
resolution
remote
control
of
biological
functions.
Visible
and
near‐infrared
(NIR)
light,
with
their
low
energy
consumption,
safety,
strong
tissue
penetration,
are
particularly
suitable
applications.
Therefore,
developing
visible‐
NIR
light‐driven
molecular
use
is
great
significance.
This
review
introduces
the
most
common
presents
state‐of‐art
applications
in
bioimaging,
biosensing,
drug
delivery,
photocontrolled
cancer
phototherapy,
photopharmacology.
The
opportunities
challenges
future
development
outlined.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 28, 2024
Constructing
circularly
polarized
luminescence
(CPL)
materials
that
exhibit
dynamic
handedness
inversion
and
emissive
color
modulation
for
multimodal
information
encryption
presents
both
a
significant
challenge
compelling
opportunity.
Here,
we
have
developed
pyridinethiazole
acrylonitrile-cholesterol
derivative
(Z-PTC)
exhibits
wavelength-dependent
photoisomerization
photocyclization,
enabling
in
supramolecular
assemblies
with
decent
CPL
activity.
Coordination
Ag
Smart Molecules,
Journal Year:
2023,
Volume and Issue:
1(3)
Published: Oct. 23, 2023
Abstract
Natural
molecular
machines
have
inspired
the
development
of
artificial
machines,
which
potential
to
revolutionize
several
areas
technology.
Artificial
commonly
employ
switches,
motors,
and
shuttles
as
fundamental
building
blocks.
The
observation
constructed
by
these
blocks
can
be
highly
challenging
due
their
small
sizes
intricate
behaviors.
use
modern
instrumentation
advanced
observational
techniques
plays
a
crucial
role
in
characterization
machines.
Furthermore,
well‐designed
structure
is
also
critical
factor
making
more
observable.
This
review
summarizes
common
methods
from
diverse
perspectives
used
observe
emphasizes
significance
comprehending
behaviors
design
superior
