Despite
great
success
in
design
and
preparation
of
phase
change
microcapsules,
the
balance
anti-leakage,
high
thermal
conductivity,
multi-source
energy
exploitation
are
still
difficult
to
be
achieved
simultaneously,
which
remains
long-standing
bottleneck
for
efficient
safe
harvesting.
In
this
work,
a
multifunctional
double-shell
PANI
microcapsule
(MC)
encapsulating
material
(PCM)
was
designed
fabricated
via
an
emulsion
photopolymerization
strategy.
Thanks
outstanding
anti-permeability,
photo-thermal
property
PANI,
as-prepared
achieves
three
synergetic
effects
simultaneously:
low
leakage
rate,
solar
exploitation.
The
encapsulated
PCM
has
almost
unchanged
Tm
Tc,
negligible
(≤0.2
wt%)
normalized
melting
solidified
enthalpies
after
100
heating/cooling
cycles.
presence
polyaniline
shell
improves
conductivity
efficiency
providing
promising
strategy
extend
single
source
energy.
addition
heat
storage,
microcapsules
also
possess
anticorrosion
property,
is
particularly
attractive
coating
applications.
Accordingly,
resulted
could
act
as
candidate
with
all-in-one
features
temperature
regulated
properties,
durability
anti-corrosion
would
stimulate
wide
application
energy-saving
anticorrosive
smart
coatings.
Abstract
The
remarkable
control
function
over
the
functional
material
formation
process
enabled
by
droplet
microfluidic
emulsification
approaches
can
lead
to
efficient
and
one‐step
encapsulation
of
active
substances
in
microparticles,
with
microparticle
characteristics
well
regulated.
In
comparison
conventional
fabrication
methods,
technology
not
only
construct
microparticles
various
shapes,
but
also
provide
excellent
templates,
which
enrich
expand
application
fields
microparticles.
For
instance,
intersection
disciplines
pharmacy,
life
sciences,
others,
modifying
structure
microspheres
appending
materials
be
completed
preparation
as‐prepared
polymer
particles
have
great
potential
a
wide
range
applications
for
chemical
analysis,
heavy
metal
adsorption,
detection.
This
review
systematically
introduces
devices
basic
principles
particle
using
discusses
research
high
monodispersity,
involving
plethora
types
including
spherical,
nonspherical,
Janus
type,
as
core–shell,
hole–shell,
controllable
multicompartment
particles.
Moreover,
this
paper
exhibits
critical
analysis
current
status
existing
challenges,
outlook
future
development
emerging
has
been
discussed.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(25)
Опубликована: Фев. 15, 2024
Abstract
The
preparation
of
monodisperse
Pickering
emulsions
currently
can
only
be
achieved
using
microfluidics
or
membrane
emulsification,
limiting
its
widespread
applications
in
many
fields.
Here,
by
simply
introducing
naturally
occurring
pollen
grains
during
mechanical
it
becomes
extremely
feasible
to
fabricate
uniform
emulsions.
process
shearing
and
turbulence
leads
a
constant
reduction
the
size
droplets
dispersed
phase.
robust
exine
continuous
phase
enables
them
retain
their
structural
integrity
resulting
formation
single
pollen‐in‐water‐in‐oil
structure.
Meanwhile,
intrinsic
monodispersity
allows
for
similarly
uniform,
they
easily
collected
through
centrifugation.
As
result,
this
novel
methodology
achieves
effective
formulation
an
unprecedented
way.
Furthermore,
utilization
sporopollenin
capsules
(SECs)
as
replacement
pollen,
conjunction
with
sol–gel
interfacial
engineering,
attainment
“yolk‐shell”
dual‐shell
microcapsules.
This
approach
not
effectively
addresses
issue
cargo
leakage
SECs
but
also
imparts
exceptional
uniformity
stability
Improving
the
utilization
of
thermal
energy
is
crucial
in
world
nowadays
due
to
high
levels
consumption.
One
way
achieve
this
use
phase
change
materials
(PCMs)
as
storage
media,
which
can
be
used
regulate
temperature
or
provide
heating/cooling
various
applications.
However,
PCMs
have
limitations
like
low
conductivity,
leakage,
and
corrosion.
To
overcome
these
challenges,
are
encapsulated
into
microencapsulated
(MEPCMs)
capsules/fibers.
This
encapsulation
prevents
from
leakage
corrosion
issues,
microcapsules/fibers
act
conduits
for
heat
transfer,
enabling
efficient
exchange
between
PCM
its
surroundings.
Microfluidics-based
MEPCMs
attracted
intensive
attention
over
past
decade
exquisite
control
flow
conditions
size
microcapsules.
review
paper
aims
an
overview
state-of-art
progress
microfluidics-based
PCMs.
The
principle
method
preparing
MEPCM
capsules/fibers
using
microfluidic
technology
elaborated,
followed
by
analysis
their
microstructure
characteristics.
Meanwhile,
applications
fields
building
conservation,
textiles,
military
aviation,
solar
utilization,
bioengineering
summarized.
Finally,
perspectives
on
discussed.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(22), С. 28147 - 28161
Опубликована: Май 24, 2024
Nonhealing
infectious
wounds,
characterized
by
bacterial
colonization,
wound
microenvironment
destruction,
and
shape
complexity,
present
an
intractable
problem
in
clinical
practice.
Inspired
LEGOs,
building-block
toys
that
can
be
assembled
into
desired
shapes,
we
proposed
the
use
of
electrospray
nano-micro
composite
sodium
alginate
(SA)
microspheres
with
antibacterial
angiogenic
properties
to
fill
irregularly
shaped
wounds
instantly.
Specifically,
porous
poly(lactic-co-glycolic
acid)
(PLGA)
(MSs)
encapsulating
basic
fibroblast
growth
factor
(bFGF)
were
produced
a
water-in-oil-in-water
double-emulsion
method.
Then,
bFGF@MSs
blended
SA
solution
containing
ZIF-8
nanoparticles.
The
resultant
was
electrosprayed
obtain
(bFGF@MS/ZIF-8@SAMSs).
MSs'
size
could
regulated
PLGA
MS
mass
proportion
voltage.
Moreover,
bFGF,
potent
agent,
ZIF-8,
bactericidal
nanoparticles,
found
release
from
bFGF@MS/ZIF-8@SAMSs
controlled
sustainable
manner,
which
promoted
cell
proliferation,
migration,
tube
formation
killed
bacteria.
Through
experimentation
on
rat
models,
revealed
adapt
shapes
accelerate
infected
healing
because
synergistic
effects
abilities.
In
summation,
this
study
developed
feasible
approach
prepare
bioactive
MSs
as
building
blocks
improve
healing.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(16), С. 6389 - 6399
Опубликована: Апрель 8, 2024
We
report
an
innovative
Lego-microfluidic
technology
for
room
temperature
synthesis
of
highly
monodispersed
bifunctional
microcapsules
enclosing
phase
change
material
(PCM),
exhibiting
magnetic
and
thermal
energy
storage
properties.
Iron(II,
III)
oxide
(Fe3O4)
nanoparticle-embedded
encapsulating
hexadecane
(HD)
are
synthesized
without
external
heating
or
cooling
in
just
∼80
s.
The
process
involves
forming
oil-in-oil-in-water
(O/O/W)
double
emulsion
droplets
with
Norland
Optical
Adhesive
(NOA)
photopolymeric
shell
consolidating
them
through
on-the-fly
polymerization
using
thiol–ene
"click"
chemistry.
PCM
content
properties
were
accurately
manipulated
by
adjusting
inner
(PCM)
flow
rate
mass
fraction
Fe3O4
nanoparticles
the
middle
(polymer)
phase.
Microcapsules
a
thickness
17.1
μm
achieved
maximum
63.3%.
Thermogravimetric
analysis
(TGA)
revealed
significantly
enhanced
stability
compared
to
pure
PCM.
Vibrating
sample
magnetometry
(VSM)
verified
increase
saturation
magnetization
residual
microcapsules,
having
higher
nanoparticle
content.
Notably,
containing
1%
exhibited
excellent
properties,
showcasing
0.194
emu/g.
Concurrently,
demonstrated
high
responsiveness
maneuverability.
