Comprehensive Reviews in Food Science and Food Safety,
Journal Year:
2024,
Volume and Issue:
23(6)
Published: Oct. 22, 2024
Abstract
Biofilm
formation
on
food
packaging
surfaces
is
a
major
issue
in
the
industry,
as
it
leads
to
contamination,
reduces
shelf
life,
and
poses
risks
human
health.
To
mitigate
these
effects,
developing
smart
coatings
that
can
actively
sense
combat
microbial
growth
has
become
critical
research
focus.
This
study
motivated
by
need
for
intelligent
solutions
integrate
antimicrobial
agents
sensors
real‐time
contamination
detection.
It
hypothesized
combining
conducting
polymers
(CPs)
with
nanomaterials
enhance
efficacy
while
maintaining
mechanical
integrity
environmental
stability
required
applications.
Through
application
of
numerous
technologies
like
surface
modification,
CP–nanoparticle
integration,
multilayered
coating,
performance
sensor
capabilities
materials
were
analyzed.
Case
studies
showed
90%
inhibition
bacterial
tenfold
decrease
viable
counts
AgNPs
incorporation,
extending
strawberries’
life
40%
fish
freshness
an
additional
5
days.
Moreover,
CP
complex
systems
have
been
shown
reduce
oxidative
spoilage
nuts
dried
fruits
up
85%,
quality
leafy
greens
3
weeks
under
suboptimal
conditions.
Environmental
assessments
indicated
30%
reduction
carbon
footprint
when
combined
biodegradable
polymers,
contributing
more
transparent
reliable
supply
chain.
CP‐based
films
integrated
exhibit
high
sensitivity,
detecting
ammonia
concentrations
below
500
ppb,
offer
significant
selectivity
sensing
hazardous
gases.
These
findings
indicate
markedly
safety
sustainability
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
10(8), P. 2800 - 2823
Published: Jan. 1, 2023
Hydrogels
have
been
attracting
increasing
attention
for
application
in
wearable
electronics,
due
to
their
intrinsic
biomimetic
features,
highly
tunable
chemical-physical
properties
(mechanical,
electrical,
etc.),
and
excellent
biocompatibility.
Among
many
proposed
varieties
of
hydrogels,
conductive
polymer-based
hydrogels
(CPHs)
emerged
as
a
promising
candidate
future
sensor
designs,
with
capability
realizing
desired
features
using
different
tuning
strategies
ranging
from
molecular
design
(with
low
length
scale
10-10
m)
micro-structural
configuration
(up
10-2
m).
However,
considerable
challenges
remain
be
overcome,
such
the
limited
strain
sensing
range
mechanical
strength,
signal
loss/instability
caused
by
swelling/deswelling,
significant
hysteresis
signals,
de-hydration
induced
malfunctions,
surface/interfacial
failure
during
manufacturing/processing.
This
review
aims
offer
targeted
scan
recent
advancements
CPH
based
technology,
establishment
dedicated
structure-property
relationships
lab
advanced
manufacturing
routes
potential
scale-up
production.
The
CPHs
sensors
is
also
explored,
suggested
new
research
avenues
prospects
included.
Small,
Journal Year:
2023,
Volume and Issue:
19(44)
Published: July 2, 2023
Conductive
polymer
hydrogels
(CPHs)
are
widely
employed
in
emerging
flexible
electronic
devices
because
they
possess
both
the
electrical
conductivity
of
conductors
and
mechanical
properties
hydrogels.
However,
poor
compatibility
between
conductive
polymers
hydrogel
matrix,
as
well
swelling
behavior
humid
environments,
greatly
compromises
CPHs,
limiting
their
applications
wearable
devices.
Herein,
a
supramolecular
strategy
to
develop
strong
tough
CPH
with
excellent
anti-swelling
by
incorporating
hydrogen,
coordination
bonds,
cation-π
interactions
rigid
conducting
soft
matrix
is
reported.
Benefiting
from
effective
networks,
obtained
has
homogeneous
structural
integrity,
exhibiting
remarkable
tensile
strength
(1.63
MPa),
superior
elongation
at
break
(453%),
toughness
(5.5
MJ
m-3
).
As
strain
sensor,
possesses
high
(2.16
S
m-1
),
wide
linear
detection
range
(0-400%),
sensitivity
(gauge
factor
=
4.1),
sufficient
monitor
human
activities
different
windows.
Furthermore,
this
resistance
been
successfully
applied
underwater
sensors
for
monitoring
frog
swimming
communication.
These
results
reveal
new
possibilities
amphibious
sensors.
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
11(1), P. 37 - 101
Published: Oct. 27, 2023
The
unique
network
characteristics
and
stimuli
responsiveness
of
supramolecular
hydrogels
have
rendered
them
highly
advantageous
in
the
field
wound
dressings,
showcasing
unprecedented
potential.
However,
there
are
few
reports
on
a
comprehensive
review
hydrogel
dressings
for
repair
hemostasis.
This
first
introduces
major
cross-linking
methods
hydrogels,
which
includes
hydrogen
bonding,
electrostatic
interactions,
hydrophobic
host-guest
metal
ligand
coordination
some
other
interactions.
Then,
we
advanced
materials
reported
recent
years
then
summarize
basic
principles
each
method.
Next,
classify
structures
before
outlining
their
forming
process
propose
potential
future
directions.
Furthermore,
also
discuss
raw
materials,
structural
design
principles,
material
used
to
achieve
functions
such
as
antibacterial
function,
tissue
adhesion,
substance
delivery,
anti-inflammatory
antioxidant
functions,
cell
behavior
regulation,
angiogenesis
promotion,
hemostasis
innovative
years.
Finally,
existing
problems
well
development
directions
strategy,
design,
discussed.
is
proposed
stimulate
further
exploration
by
researchers
future.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(16), P. 9371 - 9399
Published: Jan. 1, 2024
We
present
a
comprehensive
review
of
the
recent
research
advances
in
field
sensors
based
on
hydrogels
with
nanofillers.
The
characteristics
and
design
strategies
nanofillers
are
highlighted
multiple
properties
conductive
nanocomposite
described.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(27), P. 32993 - 33002
Published: June 29, 2023
Nowadays,
wearable
electronic
devices
are
developing
rapidly
with
the
internet
of
things
and
human-computer
interactions.
However,
there
problems
such
as
low
power,
short
power
supply
time,
difficulty
in
charging,
leading
to
a
limited
range
practical
applications.
In
this
paper,
composite
hydrogel
composed
polyacrylamide,
hydroxypropyl
methylcellulose,
MXene
(Ti3C2Tx)
nanosheets
was
developed,
which
formed
stable
double-chain
structure
by
hydrogen
bonding.
The
configuration
endows
excellent
properties,
high
strength,
strong
stretchability,
electrical
conductivity,
strain
sensitivity.
Based
on
these
characteristics,
flexible
multifunctional
triboelectric
nanogenerator
(PHM-TENG)
prepared
using
functional
electrode.
can
collect
biomechanical
energy
convert
it
183
V
maximum
density
78.3
mW/m2.
It
is
worth
noting
that
PHM-TENG
be
applied
green
source
for
driving
miniature
electronics.
Also,
used
an
auto-powered
sensor
distinguishes
letters,
enabling
monitoring
under
small
conditions.
This
work
anticipated
provide
avenue
development
new
intelligent
systems
handwriting
recognition.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 10, 2024
Conductive
hydrogel
has
garnered
significant
attention
as
an
emergent
candidate
for
diverse
wearable
sensors,
owing
to
its
remarkable
and
tailorable
properties
such
flexibility,
biocompatibility,
strong
electrical
conductivity.
These
attributes
make
it
highly
suitable
various
sensor
applications
(e.g.,
biophysical,
bioelectrical,
biochemical
sensors)
that
can
monitor
human
health
conditions
provide
timely
interventions.
Among
these
applications,
conductive
hydrogel-based
temperature
sensors
are
especially
important
healthcare
disease
surveillance.
This
review
aims
a
comprehensive
overview
of
sensors.
First,
this
work
summarizes
different
types
fillers-based
hydrogel,
highlighting
their
recent
developments
advantages
Next,
discusses
the
sensing
characteristics
focusing
on
sensitivity,
dynamic
stability,
stretchability,
signal
output.
Then,
state-of-the-art
introduced,
ranging
from
body
detection
wound
monitoring.
Finally,
identifies
remaining
challenges
prospects
facing
field.
By
addressing
with
potential
solutions,
hopes
shed
some
light
future
research
innovations
in
promising
Materials Today,
Journal Year:
2024,
Volume and Issue:
74, P. 67 - 76
Published: March 12, 2024
While
cellulose-based
stretchable
hydrogels
have
been
extensively
explored
in
recent
years,
all-cellulose
continue
to
face
the
limitation
of
low
stretchability
(less
than
250
%).
Herein,
for
first
time,
we
fabricate
an
hydrogel
with
ultrahigh
that
can
exceed
40000
%
strain.
By
ring
opening
reaction
on
cellulose
anhydroglucose
unit
rings,
secondary
hydroxyls
are
converted
primary
hydroxyls,
enabling
enhanced
chain
flexibility,
and
facilitating
formation
abundant
hydrogen
bonds.
As
a
result,
obtained
displays
remarkable
characteristics,
including
record-high
(44200
%),
rapid
self-healing
property
(within
seconds),
unique
ability
form
fiber.
With
simple
drawing,
smooth
flexible
fiber
be
obtained,
demonstrating
good
processability
high
tensile
strength
226
MPa.
Furthermore,
function
as
human
motion
sensor
electrocardiogram
electrode
monitoring
physiological
signals.
This
yet
highly
effective
method
will
not
only
propel
advancement
ultrastretchable
but
also
create
new
possibilities
wearable
device
applications.