Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Abstract
Rapid
advances
in
biomedical
applications
and
soft
robotics
demand
load‐bearing
materials
that
can
be
processed
into
complex
3D
shapes.
Direct
ink
writing
(DIW)
enables
the
fabrication
of
customizable
shapes
with
locally
varying
compositions.
Hydrogels
are
formulated
as
microgels
meet
rheological
requirements
DIW
imparts
on
inks
if
they
jammed.
However,
most
granular
hydrogels
because
inter‐particle
interactions
weak.
These
reinforced
a
second
hydrogel,
yielding
double
network
(DNGHs).
Yet,
DNGHs
suffer
from
low
fracture
energy.
This
limitation
is
addressed
by
electrostatically
reinforcing
them.
The
resulting
exhibit
Young's
moduli
energies
similar
to
values
cartilage
muscles.
An
empirical
model
proposed
predict
energy
these
DNGHs,
based
dissipation
zone
size,
contact
area,
adhesion
3D‐N,
N‐methylene
bisacrylamideprinted
free‐standing
structures
exhibiting
tuneable
mechanical
properties
at
centimeter
scale
without
need
for
supporting
structures.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Март 12, 2024
Abstract
The
development
of
nanocomposite
microwave
absorbers
is
a
critical
strategy
for
tackling
electromagnetic
pollution.
However,
challenges
persist
regarding
material
stability
and
achieving
broadband
absorption.
Herein,
novel
multi−scale
design
approach
metamaterial
proposed.
First,
series
bimetallic
(cobalt
copper)
semiconductive
metal–organic
framework
(SC−MOF)
crystals
with
atomically
resolved
structures
are
successfully
prepared
to
serve
as
building
blocks
metamaterials.
By
simply
adjusting
the
concentration
ratio
two
ions,
controllable
preparation
crystal
morphology
can
be
achieved.
This
enables
precisely
tune
absorption
peak
bandwidth
range
SC−MOF,
resulting
in
excellent
EMW
performance
(effective
bandwidth:
6.16
GHz,
minimum
reflection
loss:
−61
dB).
Based
on
this,
printable
inks
further
constructed
by
encapsulating
SC−MOF
polydimethylsiloxane
3D‐printed
multi−layered
based
woodpile
porous
architecture.
absorber
demonstrates
near‐perfect
spectrum
(with
11.33
GHz),
closely
matching
theoretical
simulations.
approach,
combining
precise
MOF
materials
construction
topological
structure
design,
offers
new
insights
absorbers.
Advances in Colloid and Interface Science,
Год журнала:
2024,
Номер
324, С. 103095 - 103095
Опубликована: Янв. 28, 2024
Direct
ink
writing
(DIW)
stands
as
a
pioneering
additive
manufacturing
technique
that
holds
transformative
potential
in
the
field
of
hydrogel
fabrication.
This
innovative
approach
allows
for
precise
deposition
inks
layer
by
layer,
creating
complex
three-dimensional
structures
with
tailored
shapes,
sizes,
and
functionalities.
By
harnessing
versatility
hydrogels,
DIW
opens
up
possibilities
applications
spanning
from
tissue
engineering
to
soft
robotics
wearable
devices.
comprehensive
review
investigates
applied
hydrogels
its
multifaceted
applications.
The
paper
introduces
diverse
range
printing
techniques
while
providing
thorough
exploration
hydrogel-based
printing.
investigation
aims
explain
progress
made,
challenges
faced,
trajectories
lie
ahead
manufacturing.
fundamental
principles
underlying
are
carefully
examined,
specifically
focusing
on
rheological
attributes
parameters,
prompting
survey
wide
variety
materials.
These
encompass
both
natural
synthetic
variations,
all
which
can
be
effectively
harnessed
this
purpose.
Furthermore,
explores
latest
biomedical
areas,
primary
focus
engineering,
wound
dressing,
drug
delivery
systems.
document
not
only
consolidates
existing
state
within
context
but
also
charts
avenues
further
research
breakthroughs.
Abstract
Polyethylene
glycol
chains
in
two
terminals
of
the
naphthalene
functional
group
are
threaded
into
α‐cyclodextrin
cavities
to
form
pseudopolyrotaxane
(NPR),
which
not
only
effectively
induces
phosphorescence
by
cyclodextrin
macrocycle
confinement,
but
also
provides
interfacial
hydrogen
bonding
assembly
function
between
polyhydroxy
groups
and
waterborne
polyurethane
(WPU)
construct
elastomers.
The
introduction
NPR
endows
elastomer
with
enhanced
mechanical
properties
excellent
room
temperature
phosphorescent
(RTP)
emission
(phosphorescence
remains
water,
acid,
alkali,
organic
solvents,
even
at
160
°C
high
temperatures).
Especially,
reversible
mechanically
responsive
behavior
intensity
increased
three
times
under
200%
strain)
can
be
observed
stretch
recover
process,
owing
strain‐induced
microstructural
changes
further
inhibiting
non‐radiative
transition
vibration
NPR.
Therefore,
changing
supramolecular
elastomers
through
stretching
a
new
approach
for
luminescent
materials.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(40), С. 21723 - 21728
Опубликована: Сен. 28, 2023
Perchlorate
anions
used
in
industry
are
harmful
pollutants
groundwater.
Therefore,
selectively
binding
perchlorate
provides
solutions
for
environmental
remediation.
Here,
we
synthesized
a
series
of
tripodal
organic
cages
with
highly
preorganized
Csp3-H
bonds
that
exhibit
to
solvents
and
water.
These
demonstrated
affinities
105-106
M-1
at
room
temperature,
along
high
selectivity
over
competing
anions,
such
as
iodide
nitrate.
Through
single
crystal
structure
analysis
density
functional
theory
calculations,
identified
unconventional
Csp3-H···O
interactions
the
primary
driving
force
binding.
Additionally,
successfully
incorporated
this
cage
into
3D-printable
polymer
network,
showcasing
its
efficacy
removing
from
Chemical Science,
Год журнала:
2024,
Номер
15(15), С. 5451 - 5481
Опубликована: Янв. 1, 2024
Recent
advances
and
present
status
of
3D-printed
micro-batteries
with
respect
to
the
connection
between
printable
materials
printing
techniques,
as
well
rational
design
considerations
are
summarized.
Materials,
Год журнала:
2025,
Номер
18(4), С. 777 - 777
Опубликована: Фев. 10, 2025
Extrusion-based
3D
printing
holds
great
potential
for
manufacturing
solid
propellants.
Among
the
various
methods,
screw-
and
plunger-based
extrusion
are
most
frequently
reported
techniques
propellant
printing,
each
employing
different
mechanisms.
This
paper
compares
flow
characteristics
of
these
two
methods
through
a
combination
simulations
experiments.
Simulation
results
reveal
that
slurry
in
plunger
device
exhibits
relatively
stable
characteristics,
especially
near
nozzle
outlet,
with
high
velocity,
shear
rate,
low-pressure
distribution.
Compared
to
screw-based
device,
achieves
more
uniform
outlet
velocity.
In
contrast,
screw
produces
complex
rheological
behavior,
backflow
observed
gap
between
channel
wall.
However,
average
pressure
(3885.11
Pa)
is
notably
lower
than
(7292.92
Pa).
Experimental
indicate
quality
comparable
extrusion.
These
findings
provide
valuable
insights
into
advancing
extrusion-based
3D-printing
processes
ACS Nano,
Год журнала:
2023,
Номер
18(1), С. 89 - 118
Опубликована: Дек. 26, 2023
Fiber/textile-based
actuators
have
garnered
considerable
attention
due
to
their
distinctive
attributes,
encompassing
higher
degrees
of
freedom,
intriguing
deformations,
and
enhanced
adaptability
complex
structures.
Recent
studies
highlight
the
development
advanced
fibers
textiles,
expanding
application
scope
fiber/textile-based
across
diverse
emerging
fields.
Unlike
sheet-like
soft
actuators,
fibers/textiles
with
intricate
structures
exhibit
versatile
movements,
such
as
contraction,
coiling,
bending,
folding,
achieved
through
adjustable
strain
stroke.
In
this
review
article,
we
provide
a
timely
comprehensive
overview
fiber/textile
including
structures,
fabrication
methods,
actuation
principles,
applications.
After
discussing
hierarchical
structure
deformation
actuator,
discuss
various
spinning
strategies,
detailing
merits
drawbacks
each.
Next,
present
principles
fiber/fabric
along
common
external
stimuli.
addition,
summary
applications
actuators.
Concluding
an
assessment
existing
challenges
future
opportunities,
aims
valuable
perspective
on
enticing
realm
Additive manufacturing,
Год журнала:
2024,
Номер
84, С. 104120 - 104120
Опубликована: Март 1, 2024
Additive
manufacturing
is
one
of
the
key
technologies
behind
recent
industrial
revolutions.
Mass
customization
requires
production
techniques
that
can
meet
current
needs
for
human-centricity,
sustainability,
and
resiliency.
Furthermore,
biomedical
applications
personalized
medicine,
3D
printing
demands
advanced
materials
respond
to
processing
requirements
each
technique
but
are
at
same
time
biocompatible,
biofunctional
bioeliminable.
Cyclodextrins
(CDs)
have
only
recently
been
explored
as
components
printed
objects
despite
variety
functionalities
they
offer.
Considered
safe
most
administration
routes,
these
macrocyclic
oligosaccharides
possess
a
unique
capability
host
wide
substances,
ranging
from
small
drugs
biomarkers
large
peptides
polymers,
be
versatilely
functionalized
their
numerous
hydroxyl
groups.
Although
still
underexplored,
capabilities
could
transferred
structures.
The
aim
this
review
analyze
contribution
CDs
make
3D/4D
more
sustainable
provide
with
novel
features.
information
collected
papers
published
in
last
decade
has
organized
into
three
sections:
improve
drug
biopharmaceutical
properties
controlled
release;
structural
agents
objects;
responsive
4D
wearable
sensors.
obtained
results
confirm
suitability
processed
using
new
nano-scale
tunable
architectures,
permanent
or
stimuli-transient
conformations.
expand
lipophilic
compounds
form
inclusion
complexes
during
preparation
water-based
semisolid
masses
melting
filaments
powders.
offer
several
advantages
by
forming
reversible
supramolecular
assemblies
exhibit
self-healing
facilitating
photocross-linking
reactions
aqueous
environments
acting
initiator
solubilizer
building
blocks.
Additionally,
behavior
through
sensitivity
humidity,
temperature,
pH,
ionic
strength,
external
forces.
Overall,
enable
widely
varying
mechanical,
electrical,
delivery
demands.
