ACS Macro Letters,
Год журнала:
2024,
Номер
13(5), С. 495 - 501
Опубликована: Апрель 12, 2024
Prior
studies
on
photonic
pigments
of
amphiphilic
bottlebrush
block
copolymers
(BBCPs)
through
an
organized
spontaneous
emulsification
(OSE)
mechanism
have
been
limited
to
using
polyethylene
glycol
(PEG)
as
the
hydrophilic
side
chains
and
toluene
organic
phase.
Herein,
a
family
polystyrene-block-polyvinylpyrrolidone
(PS-b-PVP)
BBCPs
are
synthesized
with
PVP
block.
Biocompatible
sustainable
anisole
is
employed
for
dissolving
obtained
followed
by
solutions
in
water.
Subsequent
evaporation
oil-in-water
emulsion
droplets
triggers
OSE
mechanism,
producing
thermodynamically
stable
water-in-oil-in-water
(w/o/w)
multiple
emulsions
uniform
closely
packed
internal
droplet
arrays
assembly
at
w/o
interface.
Upon
solidification,
homogeneous
porous
structures
formed
within
microparticles
that
exhibit
visible
structural
colors.
The
pore
diameter
widely
tunable
(150∼314
nm)
changing
degree
polymerization
BBCP
(69∼110),
resulting
colors
across
whole
spectrum.
This
work
demonstrates
useful
knowledge
can
be
generally
used
fabrication
ordered
materials
functional
groups,
not
only
applications,
but
also
offers
potential
platform
catalysis,
sensing,
separation,
encapsulation,
etc.
Polymers,
Год журнала:
2022,
Номер
14(21), С. 4702 - 4702
Опубликована: Ноя. 3, 2022
Self-assembly
of
amphiphilic
block
copolymers
display
a
multiplicity
nanoscale
periodic
patterns
proposed
as
dominant
tool
for
the
'bottom-up'
fabrication
nanomaterials
with
different
levels
ordering.
The
present
review
article
focuses
on
recent
updates
to
self-association
in
aqueous
media
into
varied
core-shell
morphologies.
We
briefly
describe
copolymers,
their
types,
microdomain
formation
bulk
and
micellization
selective
solvents.
also
discuss
characteristic
features
nanoaggregates
viz.,
polymer
micelles
(PMs)
polymersomes.
Amphiphilic
(with
variety
hydrophobic
blocks
hydrophilic
blocks;
often
polyethylene
oxide)
self-assemble
water
micelles/niosomes
similar
conventional
nonionic
surfactants
high
drug
loading
capacity.
Double
(DHBCs)
made
neutral
block-neutral
or
block-charged
can
transform
one
become
under
influence
stimulus
(physical/chemical/biological),
thus
induced
amphiphilicity
self-assembly
are
discussed.
Different
kinds
(viz.
shell
core-cross-linked,
core-shell-corona,
schizophrenic,
crew
cut,
Janus)
presented
detail.
Updates
polymerization-induced
(PISA)
crystallization-driven
(CDSA)
provided.
Polyion
complexes
(PICs)
polyion
complex
(PICMs)
Applications
these
copolymeric
polymersomes
nanocarriers
delivery
systems
described.
Advanced Materials,
Год журнала:
2022,
Номер
34(52)
Опубликована: Март 9, 2022
Organisms
in
nature
have
evolved
unique
structural
colors
and
stimuli-responsive
functions
for
camouflage,
warning,
communication
over
millions
of
years,
which
are
essential
to
their
survival
harsh
conditions.
Inspired
by
these
characteristics,
colloidal
photonic
composites
(CPCs)
composed
crystals
embedded
the
polymeric
matrix
artificially
prepared
show
great
promise
applications.
This
review
focuses
on
summary
building
blocks,
i.e.,
particles
matrices,
constructive
strategies
from
perspective
designing
CPCs
with
robust
performance
specific
functionality.
Furthermore,
state-of-the-art
applications
also
discussed,
including
colorful
coatings,
anti-counterfeiting,
regulation
photoluminescence,
especially
field
visualized
sensing.
Finally,
current
challenges
potential
future
developments
this
discussed.
The
purpose
is
not
only
clarify
design
principle
artificial
but
serve
as
a
roadmap
exploration
next-generation
materials.
Advanced Optical Materials,
Год журнала:
2023,
Номер
11(13)
Опубликована: Апрель 9, 2023
Abstract
Conventional
inorganic‐nanoparticles‐based
scattering
systems
have
dominated
many
practical
applications
for
years.
In
contrast,
the
rise
of
porous
polymers
is
perceived
as
a
game‐changer
due
to
their
low
cost,
facile
preparation,
and
great
abundance.
One
challenging
issue
be
tackled
design
fabrication
with
light‐scattering
properties
comparable
those
inorganic
nanoparticles.
Taking
inspiration
from
nature
(e.g.,
white
beetles
Cyphochilus
),
scientists
achieved
remarkable
progress
in
field
related
recent
Therefore,
here,
an
up‐to‐date
review
about
this
emerging
provided.
This
overview
covers
materials
making
polymer
structures,
detailed
methods,
benefitting
tailorable
properties.
It
envisioned
that
more
bioinspired
will
made
potential
alternatives
conventional
nanoparticles‐based
scatterers.
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(9)
Опубликована: Фев. 20, 2024
Additive
manufacturing
capable
of
controlling
and
dynamically
modulating
structures
down
to
the
nanoscopic
scale
remains
challenging.
By
marrying
additive
with
self-assembly,
we
develop
a
UV
(ultra-violet)-assisted
direct
ink
write
approach
for
on-the-fly
modulation
structural
color
by
programming
assembly
kinetics
through
photo-cross-linking.
We
design
photo-cross-linkable
bottlebrush
block
copolymer
solution
as
printing
that
exhibits
vibrant
(i.e.,
photonic
properties)
due
lamellar
formed
post
extrusion.
UV-light
irradiance
during
printing,
can
program
printed
material
access
broad
spectrum
visible
light
single
while
also
creating
gradients
not
previously
possible.
unveil
mechanism
this
using
combination
coarse-grained
simulations,
rheological
measurements,
characterizations.
Central
is
matching
cross-linking
timescale
timescale,
which
leads
kinetic
trapping
process
evolves
from
blue
red
driven
solvent
evaporation.
This
strategy
integrating
chemistry
out-of-equilibrium
processing
opens
an
avenue
spatiotemporal
control
self-assembled
nanostructures
manufacturing.
Advanced Optical Materials,
Год журнала:
2024,
Номер
12(19)
Опубликована: Март 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.
JACS Au,
Год журнала:
2021,
Номер
2(1), С. 66 - 73
Опубликована: Дек. 10, 2021
Phase
separation
is
a
ubiquitous
process
and
finds
applications
in
variety
of
biological,
organic,
inorganic
systems.
Nature
has
evolved
the
ability
to
control
phase
both
regulate
cellular
processes
make
composite
materials
with
outstanding
mechanical
optical
properties.
Striking
examples
latter
are
vibrant
blue
green
feathers
many
bird
species,
which
thought
result
from
an
exquisite
size
spatial
correlations
their
phase-separated
microstructures.
By
contrast,
it
much
harder
for
material
scientists
arrest
synthetic
such
high
level
precision
at
these
length
scales.
In
this
Perspective,
we
briefly
review
some
established
methods
liquid–liquid
then
highlight
emergence
promising
method
based
on
elastic
polymer
network.
Finally,
discuss
upcoming
challenges
opportunities
fabricating
microstructured
via
mechanically
controlled
separation.
Polymer
indicators
are
autonomous
responsive
materials
that
provide
an
optical
signal
of
a
specific
exposure
in
time.
This
review
describes
the
different
polymer
systems
utilized
to
obtain
based
on
structural
color.
Structural
color
originates
from
interaction
light
with
periodic
nanostructured
which
causes
wavelength
be
reflected.
reflected
can
used
for
fabricating
battery-free
show
visible
changes
upon
stimulus
or
analyte.
In
this
review,
typical
response
types
categorized
by
discussed
and
compared.
Furthermore,
steps
toward
possible
applications
colored
polymers
outlined.
