Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(35)
Published: May 5, 2023
Abstract
Achieving
high
stability
and
excellent
optical
performance
in
complex
environments
is
crucial
for
practical
applications
of
magnetically
responsive
photonic
crystals
(MRPCs).
It,
however,
remains
a
great
challenge.
This
study
demonstrates
polyphenol‐mediated
strategy
synthesizing
size‐controllable
superparamagnetic
magnetite
(Fe
3
O
4
)
colloid
nanocrystal
clusters
(CNCs)
that
can
be
stably
dispersed
various
polar
solvents
to
form
MRPCs
with
brilliant
structural
colors
long
term.
As
tannic
acid
(TA)
functions
as
linker
robustly
bind
polyvinylpyrrolidone
(PVP)
chains
Fe
surfaces,
the
maintain
nearly
constant
diffraction
wavelength
reflectance
up
years.
The
strong
coordination
between
TA
3+
inhibits
crystal
growth,
ensuring
small
primary
size
superparamagnetism
@TA‐PVP
CNCs.
Partial
oxidation
accelerates
nucleation
reducing
overall
CNC
particle
size,
which
utilized
controlling
size.
Additionally,
enhancing
dissolution
PVP
before
solvothermal
reaction
improves
monodispersity
products,
making
as‐constructed
ideal
color
display,
sensors,
anti‐counterfeiting,
camouflage.
CNCs
versatility
surface‐functionalization
are
also
promising
magnetic
resonance
imaging,
targeting
drug
delivery,
recyclable
catalysis,
nanomotors.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(15), P. 5317 - 5339
Published: Jan. 1, 2023
This
review
covers
the
mechanisms
of
formation,
properties,
characterization,
and
a
broad
range
applications
nanocolloidal
gels
that
are
an
evolving
class
soft
matter
materials
in
which
nanoparticles
act
as
building
block
network.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(17), P. 16291 - 16307
Published: Aug. 16, 2023
The
conception,
synthesis,
and
invention
of
a
nanostructure,
now
known
as
the
spherical
nucleic
acid,
or
SNA,
in
1996
marked
advent
new
field
chemistry.
Over
past
three
decades,
SNA
its
analogous
anisotropic
equivalents
have
provided
an
avenue
for
us
to
think
about
some
most
fundamental
concepts
chemistry
ways
led
technologies
that
are
significantly
impacting
fields
from
medicine
materials
science.
A
prime
example
is
colloidal
crystal
engineering
with
DNA,
framework
using
SNAs
related
structures
synthesize
programmable
matter.
Herein,
we
document
evolution
this
framework,
which
was
initially
inspired
by
nature,
describe
how
it
allows
researchers
chart
paths
move
beyond
it,
matter
real-world
significance
envisioned
created.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(29)
Published: May 20, 2023
Colloidal
supraparticles
integrated
with
multicomponent
primary
particles
come
emerging
or
synergetic
functionalities.
However,
achieving
the
functional
customization
of
remains
a
great
challenge
because
limited
options
building
blocks
tailorability
and
extensibility.
Herein,
we
developed
universal
approach
to
construct
customizable
desired
properties
from
molecular
obtained
by
covalent
conjugation
catechol
groups
series
orthogonal
groups.
These
catechol-terminated
can
assemble
into
driven
various
intermolecular
interactions
(i.e.
metal-organic
coordination,
host-guest,
hydrophobic
interactions),
then
further
governed
catechol-mediated
interfacial
interactions.
Our
strategy
enables
formation
diverse
functionalities,
such
as
dual-pH
responsiveness,
light-controllable
permeability,
non-invasive
fluorescence
labeling
living
cells.
The
ease
which
these
be
fabricated,
ability
tailor
their
chemical
physical
through
choice
metals
used,
should
enable
variety
applications.
Small Structures,
Journal Year:
2023,
Volume and Issue:
4(9)
Published: March 29, 2023
Peripheral
nerve
injuries
are
challenging
to
repair
clinically
due
their
limited
regenerative
capacity.
Herein,
a
novel
poly(3,4‐ethylenedioxythiophene):poly(4‐styrene
sulfonate)
(PEDOT:PSS)
composited
conductive
silk
conduit
with
ultrasound
(US)‐triggered
active
release
for
peripheral
regeneration
is
presented.
The
composed
of
fibroin
inverse
opal
tubular
scaffolds
and
the
secondary
hydrogel
filler
that
contains
thermosensitive
material
(poly(
N
‐isopropylacrylamide),
PNIPAM),
PEDOT:PSS,
growth
factor
(NGF).
Benefiting
from
integration
these
functional
materials
factors,
conduits
show
excellent
biocompatibility,
flexibility,
conductivity,
bioactivity.
In
particular,
owing
thermal
effect
US
temperature
responsiveness
PNIPAM,
filling
undergoes
volume
shrinkage
upon
triggering,
allowing
responsive
NGF
release.
Besides,
electrical
conductivity
PEDOT:PSS
has
been
affirmed
promote
neuron
axon
outgrowth.
Through
in
vivo
experiments,
synergistic
US‐triggered
delivery
on
accelerating
injured
demonstrated.
These
results
reveal
practical
value
proposed
intelligent
preclinical
studies.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(35)
Published: May 5, 2023
Abstract
Achieving
high
stability
and
excellent
optical
performance
in
complex
environments
is
crucial
for
practical
applications
of
magnetically
responsive
photonic
crystals
(MRPCs).
It,
however,
remains
a
great
challenge.
This
study
demonstrates
polyphenol‐mediated
strategy
synthesizing
size‐controllable
superparamagnetic
magnetite
(Fe
3
O
4
)
colloid
nanocrystal
clusters
(CNCs)
that
can
be
stably
dispersed
various
polar
solvents
to
form
MRPCs
with
brilliant
structural
colors
long
term.
As
tannic
acid
(TA)
functions
as
linker
robustly
bind
polyvinylpyrrolidone
(PVP)
chains
Fe
surfaces,
the
maintain
nearly
constant
diffraction
wavelength
reflectance
up
years.
The
strong
coordination
between
TA
3+
inhibits
crystal
growth,
ensuring
small
primary
size
superparamagnetism
@TA‐PVP
CNCs.
Partial
oxidation
accelerates
nucleation
reducing
overall
CNC
particle
size,
which
utilized
controlling
size.
Additionally,
enhancing
dissolution
PVP
before
solvothermal
reaction
improves
monodispersity
products,
making
as‐constructed
ideal
color
display,
sensors,
anti‐counterfeiting,
camouflage.
CNCs
versatility
surface‐functionalization
are
also
promising
magnetic
resonance
imaging,
targeting
drug
delivery,
recyclable
catalysis,
nanomotors.
