Molecules,
Год журнала:
2024,
Номер
29(22), С. 5291 - 5291
Опубликована: Ноя. 8, 2024
This
study
reports
the
successful
synthesis
of
core-shell
microparticles
utilizing
coaxial
electrospray
techniques,
with
zeolitic
imidazolate
framework-8
(ZIF-8)
encapsulating
rhodamine
B
(RhB)
in
core
and
a
phase
change
material
(PCM)
shell
composed
eutectic
mixture
lauric
acid
(LA)
stearic
(SA).
ZIF-8
is
well-recognized
for
its
pH-responsive
degradation
biocompatibility,
making
it
an
ideal
candidate
targeted
drug
delivery.
The
LA-SA
PCM
mixture,
melting
point
near
physiological
temperature
(39
°C),
enables
temperature-triggered
release,
enhancing
therapeutic
precision.
structural
properties
were
extensively
characterized
through
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectroscopy
(FTIR),
differential
calorimetry
(DSC),
thermogravimetric
analysis
(TGA).
Drug
release
studies
revealed
dual-stimuli
response,
where
RhB
was
significantly
influenced
by
both
pH.
Under
mildly
acidic
conditions
(pH
4.0)
at
40
°C,
rapid
complete
observed
within
120
h,
while
37
rate
notably
slower.
Specifically,
°C
79%
higher
than
confirming
sensitivity
system.
Moreover,
pH
(7.4),
minimal
occurred,
demonstrating
system's
potential
minimizing
premature
under
neutral
conditions.
approach
holds
promise
improving
outcomes
cancer
treatment
enabling
precise
control
over
response
to
localized
hyperthermia,
reducing
off-target
effects
patient
compliance.
Molecules,
Год журнала:
2025,
Номер
30(1), С. 168 - 168
Опубликована: Янв. 4, 2025
The
growing
demand
for
sustainable
energy
storage
solutions
has
underscored
the
importance
of
phase
change
materials
(PCMs)
thermal
management.
However,
traditional
PCMs
are
always
inherently
constrained
by
issues
such
as
leakage,
poor
conductivity,
and
lack
solar
conversion
capacity.
Herein,
a
multifunctional
composite
material
(CPCM)
is
developed
using
balsa-derived
morphology
genetic
scaffold,
engineered
via
bionic
catechol
surface
chemistry.
scaffold
undergoes
selective
delignification,
followed
simple,
room-temperature
polydopamine
(PDA)
modification
to
deposit
Ag
nanoparticles
(Ag
NPs)
graft
octadecyl
chains,
resulting
in
superhydrophobic
hierarchical
structure.
This
superhydrophobicity
plays
critical
role
preventing
PCM
leakage
enhancing
environmental
adaptability,
ensuring
long-term
stability
under
diverse
conditions.
Encapsulating
stearic
acid
(SA)
PCM,
CPCM
exhibits
exceptional
stability,
achieving
high
latent
heat
175.5
J
g−1
an
efficiency
87.7%.
In
addition,
conductivity
significantly
enhanced
along
longitudinal
direction,
2.1-fold
increase
compared
pure
SA,
due
integration
NPs
unidirectional
wood
architecture.
synergy
also
drives
efficient
photothermal
π-π
stacking
interactions
PDA
plasmon
effects
NPs,
enabling
rapid
solar-to-thermal
conversion.
Moreover,
demonstrates
remarkable
water
resistance,
self-cleaning
ability,
reliability,
retaining
its
functionality
through
100
heating–cooling
cycles.
balsa-based
represents
breakthrough
integrating
phase-change
behavior
with
advanced
offering
promising
applications
solar–thermal
systems.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 11, 2025
Abstract
The
escalating
global
energy
demand
underscores
the
critical
need
for
advanced
solutions
energy‐efficient
buildings.
Passive
thermal
storage
systems
using
microencapsulated
phase
change
materials
(PCMs)
offer
promise
but
face
integration
challenges
in
cementitious
due
to
weakening
mechanical
strength,
which
arises
from
poor
shell
strength
and
weak
interfacial
bonding
with
phases.
This
study
introduces
a
novel
approach
synthesizing
functionalized
PCMs
fly
ash‐based
cenospheres
addressing
compatibility.
Cenospheres
are
perforated
PCM
encapsulation
sealed
two
different
materials:
1)
melamine‐formaldehyde
(MF),
standard
polymeric
shell;
2)
silica,
selected
its
chemical
compatibility
Experimental
results
show
that
silica
sealing
improved
by
50%
over
those
of
MF,
corroborated
molecular
dynamic
simulations
showing
silica's
binding
calcium
silicate
hydrate
exceeded
threefold,
more
than
twice
uniaxial
tensile
strength.
Thermal
analyses
confirmed
preservation
both
approaches.
work
establishes
transformative
pathway
advancing
PCM‐based
building
materials.
Enhancing
thermal
comfort
in
textiles
can
contribute
to
improved
user
well-being,
both
wearable
technology
and
everyday
clothing.
This
study
introduces
thermoregulation
properties
by
embedding
a
phase
change
material
(PCM)
into
regenerated
man-made
cellulose
fibers
via
the
Ioncell®
technology.
Calorimetric
analysis
revealed
that
incorporation
of
myristic
acid
as
PCM
enables
absorb
release
energy,
providing
dynamic
regulation
response
temperature
changes.
Specifically,
PCM-fiber
containing
50%
(w/w)
demonstrated
melting
enthalpy
73
J
g-1,
with
54
°C.
The
remained
largely
stable
even
after
100
cycling
tests,
highlighting
excellent
durability
PCM-incorporated
textiles.
Furthermore,
resulting
thermoregulating
textile
was
treated
hydrophobic
coating
composed
octadecenyl
succinic
anhydride,
an
average
water
contact
angle
75°,
post-washing,
demonstrating
good
repellency.
developed
fabric
combines
repellency
through
eco-friendly
processes,
offering
promising
alternative
conventional
functional
Materials,
Год журнала:
2025,
Номер
18(9), С. 2074 - 2074
Опубликована: Апрель 30, 2025
Microencapsulated
phase-change
materials
(MPCMs)
with
excellent
thermal
properties
for
low-temperature
cold
storage
were
developed
in
this
study.
Using
1-decanol
as
the
core
and
methyl
methacrylate
shell
precursor,
effects
of
emulsifier
type
ultrasonic
emulsification
conditions
investigated.
Styrene-maleic
anhydride
copolymer
served
effectively
a
protective
colloid
emulsifier,
producing
MPCMs
high
enthalpy
well-defined,
uniform
microstructure.
Under
optimal
5
wt%
content
relative
to
oil
phase,
an
power
375
W,
time
12
min,
exhibited
126.7
kJ/kg.
To
further
improve
properties,
binary
eutectic
mixture
was
prepared
by
combining
1-tetradecane
at
molar
ratio
(51.1:48.9).
This
binary-core
MPCM
showed
higher
(144.3
kJ/kg),
increase
13.9%
compared
single-core
material
(1-decanol).
It
also
improved
microstructural
uniformity
due
stabilizing
role
1-tetradecane.
These
optimized
demonstrate
phase-transition
temperatures
particularly
suitable
storage,
providing
practical
innovative
technical
solution
cold-chain
logistics
vaccine
refrigeration
applications.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
The
global
energy
crisis
and
climate
change
pose
unprecedented
challenges.
Wearable
devices
with
personal
thermoregulation
harvesting
hold
great
promise
for
achieving
savings
human
thermal
comfort.
Here,
inspired
by
neurons,
a
novel
phase
material
(PCM)
is
reported
efficient
respiratory
monitoring
via
self-assembly
strategy.
use
of
gum
arabic
(GA)
enabled
the
encapsulation
polyethylene
glycol
(PEG)
targeted
distribution
carboxylated
multi-walled
carbon
nanotubes
(cMWCNTs)
simultaneously
in
poly
(ethylene
vinyl
acetate)
(EVA)
matrix.
exhibits
an
outstanding
toughness
value
14.88
MJ
m
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
Phase
change
materials
have
demonstrated
attractive
application
prospects
in
various
thermal
energy
storage
and
management
systems.
However,
the
design
manufacture
of
high-performance
phase
composites
with
tunable
properties
multiresponsive
remain
a
great
challenge.
Herein,
SiC
nanowire
aerogel
tailorable
porosity
surface
was
used
to
encapsulate
stearic
acid
for
fabricating
composites.
The
could
be
facilely
tailored
by
uniaxial
hot-pressing
method,
its
coated
C
or
SiO2
via
chemical
vapor
deposition
oxidation
method.
Meanwhile,
latent
heat
conductivity
were
tuned
tailoring
aerogel.
resulting
exhibit
ultrahigh
retention
(96.9%)
excellent
shape
stability,
cycling
recyclability.
In
addition,
multiresponsiveness
temperature,
light,
electricity,
microwave
endows
them
ability
harvest
thermal,
solar,
electric
energy,
especially
radial
energy.
This
study
provides
promising
strategy
designing
multienergy
utilization.
