Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 7, 2025
Abstract
The
construction
of
bio‐nanostructures
plays
a
critical
role
in
the
advancement
applications
across
bioelectronics,
bio‐optical
devices,
and
biomedicine.
Among
various
fabrication
techniques,
soft
lithography
emerges
as
an
efficient
scalable
method
for
producing
high‐quality
intricate
surface
micropatterns.
Herein,
mild
aqueous
approach
is
developed
to
endow
biocompatible
wool
keratin
(WK)
with
photoresponsiveness;
utilize
gold
nanoclusters
(AuNCs)
incorporated
functional
bio‐photoresist
build
iridescent
fluorescent
micrometer‐scale
patterns
dual‐mode
optical
anti‐counterfeiting.
Specifically,
chemical
modification
WK
achieved
by
using
glycidyl
methacrylate
under
conditions.
And
then,
modified
can
function
green
bio‐photoresist,
which
be
cross‐linked
via
UV
light‐initiated
radical
polymerization.
By
combining
lithography,
both
positive
negative
3D
micro‐patterns
stability,
biocompatibility,
controlled
degradability
facilely
fabricated.
Notably,
obtained
periodic
microstructures
exhibit
typical
behavior
excellent
diffraction
efficiency.
Interestingly,
reductant
stabilizer,
AuNCs
resist
significant
fluorescence
response
situ
generated.
More
importantly,
through
skillful
combination
fluorescence,
WK/AuNCs‐based
hybrid
further
used
anti‐counterfeiting,
significantly
enhance
information
storage
encryption
security.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Engineering
wearable
devices
for
in
situ
and
on‐site
monitoring
of
pesticide
residues
from
plants
a
non‐destructive
manner
is
great
research
value
but
remains
huge
challenge.
In
this
study,
plant‐wearable
fluorescence
sensor
CdTe
CDs@PVA@AG,
designed
constructed
by
embedding
QDs
polyvinyl
alcohol
(PVA)
agarose
(AG)‐co‐assembled
double‐network
hydrogel
to
transmit
on‐the‐scene
pesticides
messages.
Harnessing
red
emission
stimuli‐responsive
performance
QDs,
as
well
hydrogel's
excellent
flexibility,
high
adhesion,
porous
network,
CDs@PVA@AG
endowed
with
quantitative
response
thiram
at
≈µ
m
level
within
2
min
through
promoting
silence
conjunction
the
transformation
images
into
primary
colors
digital
signals.
More
interestingly,
capable
being
tightly
pasted
onto
various
crops’
surfaces
then
not
only
explored
appraise
residue
levels
also
profile
dynamic
degradation,
manner.
This
work
opens
up
new
avenue
engineer
situ,
on‐site,
capturing
information
crops,
favoring
accurate
health
status
rapid
healthy
development
smart
agriculture.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Abstract
Organic
room
temperature
phosphorescence
(ORTP)
polymer
materials
have
sparked
considerable
research
interests
in
recent
years,
but
their
optical
function
is
still
limited
for
multi‐mode
imaging.
Herein,
a
feasible
and
universal
approach
proposed
to
endow
ORTP
with
periodic
refractive
index
modulation
functions
by
holographic
patterning.
The
key
this
design
two‐stage
stepwise
crosslinking.
Stage‐1,
low
crosslinking
density
(≤0.75
mol
L
−1
),
phosphorescence‐silent
can
provide
greater
free
volume
monomer
diffusion
thus
facilitate
the
patterning
of
modulated
holograms
via
photopolymerization‐induced
phase
separation.
dense
at
stage‐2
turn
on
intensity
rising
144%
when
increases
from
3.77
4.12
.
enhanced
primarily
ascribed
increase
conformational
distortion
spin‐orbit
coupling
organic
phosphors
based
theoretical
calculations.
Eventually,
first
example
demonstrated
plastic
unique
capability
independently
displaying
andphosphorescent
images.
This
work
not
only
provides
novel
paradigm
impart
added
also
paves
way
development
high‐security
combat
counterfeiting.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Smart
hydrogels
with
multi‐fluorescent
properties
hold
great
promise
for
information
encryption.
However,
conventional
fluorescent
often
lack
adequate
mechanical
and
multiple
responsiveness,
limiting
their
range
of
applications.
In
this
study,
a
multifunctional
hydrogel
featuring
an
interpenetrating
polymer
network
(IPN)
composed
poly(vinyl
alcohol)
(PVA)
poly(acrylic
amide‐co‐2‐acrylamido‐2‐methylpropane
sulfonic
acid)
P(AM/AMPS)
chemical
cross‐linking
networks
is
designed.
Through
the
coordination
lanthanide
ions
(Eu
3+
,
Tb
)
glycine,
achieves
exceptional
stretchability
(over
900%)
adjustable
photoluminescence
properties.
Due
to
acid
groups
on
2‐acrylamide‐2‐methylpropanesulfonic
(AMPS),
which
support
various
noncovalent
interactions,
PVA‐P(AM/AMPS)‐Gly‐Ln
displays
strong
reversible
adhesive
diverse
substrates.
Ultimately,
assembled
into
multifunctional,
flexible
sensor,
boasting
satisfactory
sensitivity
(GF
=
5.3),
rapid
response
rate
(100
ms),
outstanding
characteristics,
highlighting
its
potential
applications
in
human
motion
detection
