Molecules,
Journal Year:
2024,
Volume and Issue:
29(22), P. 5291 - 5291
Published: Nov. 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,
Journal Year:
2025,
Volume and Issue:
30(1), P. 168 - 168
Published: Jan. 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.
