Science Advances,
Journal Year:
2023,
Volume and Issue:
9(42)
Published: Oct. 20, 2023
Mechanosensing,
the
transduction
of
extracellular
mechanical
stimuli
into
intracellular
biochemical
signals,
is
a
fundamental
property
living
cells.
However,
endowing
synthetic
materials
with
mechanosensing
capabilities
comparable
to
biological
levels
challenging.
Here,
we
developed
ultrasensitive
and
robust
mechanoluminescent
composites
using
hydrogels
embedded
dinoflagellates,
unicellular
microalgae
near-instantaneous
bioluminescent
response
stress.
Not
only
did
dinoflagellates
retain
their
intrinsic
mechanoluminescence,
but
hydrophobic
coatings,
had
lifetime
~5
months
under
harsh
conditions
minimal
maintenance.
We
3D-printed
large-scale
structures
high
spatial
resolution,
also
enhanced
properties
double-network
hydrogels.
propose
counterpart
mathematical
model
that
captured
experimental
observations
predict
mechanoluminescence
based
on
deformation
applied
demonstrated
use
for
biomimetic
soft
actuators
emitted
colored
light
upon
magnetic
actuation.
These
have
substantial
potential
in
biohybrid
sensors
robotics.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
2(3)
Published: Aug. 1, 2024
Abstract
The
quest
for
mechanoluminescence
(ML)
in
zinc
sulfide
(ZnS)
spans
more
than
a
century,
initially
sparked
by
observations
of
natural
minerals.
There
has
been
resurgence
research
into
ML
materials
recent
decades,
driven
advances
optoelectronic
technologies
and
deeper
understanding
their
luminescent
properties
under
mechanical
stress.
ZnS,
particular,
garnered
attention
owing
to
its
remarkable
ability
sustain
luminescence
after
100,000
stimulations,
positioning
it
as
standout
candidate
applications.
In
contrast
conventional
photoluminescent
electroluminescent
light
sources,
ZnS
composite
elastomers
have
emerged
flexible,
stretchable
self‐powered
sources
with
considerable
practical
implications.
This
review
introduces
the
development
history,
mechanisms,
prototype
devices,
ZnS‐based
material
preparation
methods,
diverse
applications
spanning
environmental
mechanical‐to‐optical
energy
conversion,
E‐signatures,
anti‐counterfeiting,
wearable
information
sensing
advanced
battery‐free
displays,
biomedical
imaging,
optical
fiber
sensors
human–computer
interactions,
among
others.
By
integrating
insights
from
ML‐optics,
mechanics,
flexible
optoelectronics,
summarizing
pertinent
perspectives
on
current
scientific
challenges,
application
technology
hurdles,
potential
solutions
emerging
frontiers,
this
aims
furnish
fundamental
guidance
conceptual
frameworks
design,
advancement,
cutting‐edge
novel
mechanoluminescent
materials.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 9, 2024
Abstract
Incorporating
mechanoluminescent
(ML)
materials
into
piezoelectric
polymer
nanofibers
enables
the
development
of
advanced
pressure
sensors
and
human–machine
interactive
devices
by
providing
mechanical
flexibility
enhancing
processibility.
This
study
demonstrates
that
introducing
water
during
electrospinning
process
significantly
improves
properties
polyvinylidene
fluoride
(PVDF)‐based
polymers,
attributed
to
enhanced
formation
piezoelectrically
active
β
‐phases.
A
biphasic
relationship
between
piezoelectricity
concentration
is
revealed,
with
an
optimal
4
wt.%
for
both
fluoride‐hexafluoropropylene
(PVDF‐HFP)
fluoride‐trifluoroethylene
(PVDF‐TrFE).
Furthermore,
inclusion
in
solution
facilitates
integration
ZnS:
Mn
2+
microparticles
fibers,
resulting
fibrous
composite
membranes
mechano‐optical
responses.
After
thermal
annealing,
membrane
PVDF‐TrFE
8
addition
best
ML
performance
high
light
emission
intensity
reduced
threshold
down
18
kPa.
exceptional
can
be
local
electric
field
generated
encapsulation
within
which
electroluminescence
subsequently
boosts
overall
emission.
Abstract
Mechanoluminescence
(ML)
is
a
fascinating
phenomenon
with
diverse
applications
in
pressure
sensing,
damage
detection,
and
stress
distribution
visualization.
However,
most
ML
materials
exhibit
instantaneous
photon
emission
that
requires
real‐time
recording
photodetector,
thereby
circumscribing
their
applicability
predominantly
to
stress‐sensing
scenarios.
In
this
work,
novel
method
introduced
for
non‐real‐time
sensing
utilizing
Li
0.1
Na
0.9
NbO
3
:Pr
3+
phosphor,
which
allows
the
retrieval
of
location
intensity
even
20
days
after
event.
The
influence
heat
on
trap
depth
analyzed
using
thermoluminescence
(TL)
measurements,
it
proved
both
release
captured
electrons
same
traps.
Leveraging
intricate
competition
between
mechanical
thermal
detrapping
processes,
information
can
be
accessed
through
TL
imaging.
Furthermore,
an
algorithm
proposed
based
authenticate
information.
This
research
not
only
advances
fundamental
understanding
phenomena
but
also
introduces
approach
such
as
mechano‐history
indicators,
security
papers,
advanced
data
storage
systems.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(42)
Published: Oct. 20, 2023
Mechanosensing,
the
transduction
of
extracellular
mechanical
stimuli
into
intracellular
biochemical
signals,
is
a
fundamental
property
living
cells.
However,
endowing
synthetic
materials
with
mechanosensing
capabilities
comparable
to
biological
levels
challenging.
Here,
we
developed
ultrasensitive
and
robust
mechanoluminescent
composites
using
hydrogels
embedded
dinoflagellates,
unicellular
microalgae
near-instantaneous
bioluminescent
response
stress.
Not
only
did
dinoflagellates
retain
their
intrinsic
mechanoluminescence,
but
hydrophobic
coatings,
had
lifetime
~5
months
under
harsh
conditions
minimal
maintenance.
We
3D-printed
large-scale
structures
high
spatial
resolution,
also
enhanced
properties
double-network
hydrogels.
propose
counterpart
mathematical
model
that
captured
experimental
observations
predict
mechanoluminescence
based
on
deformation
applied
demonstrated
use
for
biomimetic
soft
actuators
emitted
colored
light
upon
magnetic
actuation.
These
have
substantial
potential
in
biohybrid
sensors
robotics.
