Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
Given
the
extensive
application
of
near‐infrared
(NIR)
emission,
quest
for
efficient
and
versatile
NIR
semiconductors
have
attracted
tremendous
attention.
Leveraging
trivalent
rare
earth
(RE
3+
)
ions
doping,
integration
metal
halide
perovskites
with
RE
makes
it
easy
to
achieve
NIR‐II
emission
(1000–1700
nm).
However,
although
showing
promise
in
bioimaging,
optical
communication,
night
vision,
enhancing
intensity
promote
further
progress
real‐world
applications
remains
a
challenge.
This
review
summarizes
recent
advancements
ion‐doped
perovskite
semiconductors,
discusses
what
kind
properties
are
needed
how
desired
various
applications.
The
starts
synthesis
methods
material
types
rich
examples.
Following
this,
mechanisms
strategies
optimizing
luminescence
performance
discussed
detail.
Furthermore,
highlights
their
multifunctional
both
as
an
electrically
driven
emitter
light‐emitting
diodes
(LEDs)
down‐conversion
photovoltaic
devices
(PVs)
or
phosphor‐converted
LEDs
(pc‐LEDs).
Finally,
insights
on
fill
gap
between
current
research
future
goals
provided.
aims
provide
deeper
understanding
materials,
exploration
emitters.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Optical
imaging
in
the
second
near-infrared
window
(NIR-II,
1000-1700
nm)
holds
great
promise
for
biomedical
detection
due
to
reduced
tissue
scattering
and
autofluorescence.
However,
rational
design
of
NIR-II
probes
with
superior
excitation
wavelengths
balance
effects
water
absorption
remains
a
challenge.
To
address
this
issue,
here
we
developed
series
Ho
Molecules,
Journal Year:
2025,
Volume and Issue:
30(2), P. 396 - 396
Published: Jan. 18, 2025
Ratiometric
lanthanide
coordination
polymers
(Ln-CPs)
are
advanced
materials
that
combine
the
unique
optical
properties
of
ions
(e.g.,
Eu3+,
Tb3+,
Ce3+)
with
structural
flexibility
and
tunability
polymers.
These
widely
used
in
biological
chemical
sensing,
environmental
monitoring,
medical
diagnostics
due
to
their
narrow-band
emission,
long
fluorescence
lifetimes,
excellent
resistance
photobleaching.
This
review
focuses
on
composition,
sensing
mechanisms,
applications
ratiometric
Ln-CPs.
The
mechanism
relies
two
distinct
emission
bands,
which
provides
a
self-calibrating,
reliable,
precise
method
for
detection.
relative
intensity
ratio
between
these
bands
varies
concentration
target
analyte,
enabling
real-time
monitoring
minimizing
interference.
approach
is
particularly
suitable
detecting
trace
analytes
use
complex
environments
where
factors
like
background
noise,
temperature
fluctuations,
light
variations
may
affect
results.
Finally,
we
outline
future
research
directions
improving
design
synthesis
Ln-CPs,
such
as
incorporating
long-lifetime
reference
luminescent
molecules,
exploring
near-infrared
systems,
developing
up-conversion
or
two-photon
materials.
Progress
areas
could
significantly
broaden
scope
Ln-CP
applications,
especially
biosensing,
other
fields.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 2, 2025
Lanthanides
are
widely
codoped
in
persistent
luminescence
phosphors
(PLPs)
to
elevate
defect
concentration
and
enhance
efficiency.
However,
the
deleterious
cross-relaxation
between
activators
lanthanides
inevitably
quenches
luminescence,
particularly
heavily
doped
phosphors.
Herein,
we
report
a
core-shell
engineering
strategy
minimize
unwanted
but
retain
charge
trapping
capacity
of
by
confining
core
shell,
respectively.
As
proof
concept,
prepared
series
ZnGa2O4:Cr,
Ln
(CD-Ln,
=
Nd,
Eu,
Gd,
Tb,
Dy,
Ho,
Er,
Tm,
Yb)
structured
ZnGa2O4:Cr@ZnGa2O4:Ln
(CS-Ln)
nanoparticles.
First-principles
investigations
suggested
that
lanthanide
doping
elevated
electron
trap
for
enhancing
energy
transfer
(ET)
from
Cr3+
Ln3+
ions
quenched
luminescence.
The
spatial
separation
CS-Ln
nanoparticles
suppressed
ET
Ln3+.
Due
efficient
suppression
ET,
optimal
was
50
times
compared
CD-Ln.
Moreover,
intensity
CS-5%Ln
up
60
original
ZnGa2O4:Cr.
displayed
significantly
improved
signal-to-noise
ratios
bioimaging.
Further,
interfaced
with
lycopene-producing
bacteria
Rhodopseudomonas
palustris
solar-to-chemical
synthesis,
lycopene
productivity
increased
190%.
This
work
provides
reliable
solution
fulfill
potential
can
further
promote
applications
biomedicine
synthesis.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 5, 2025
Abstract
Lateral
flow
assays
(LFAs)
are
widely
applicable
in
clinical
point‐of‐care
testing
(POCT)
due
to
their
unique
advantages
such
as
simplicity,
rapidity,
and
cost‐effectiveness.
However,
sensitivity
is
often
constrained
by
the
background
autofluorescence
of
biological
sample,
self‐matrix,
or
readout
technique,
thereby
leading
overlooking
trace
amounts
biomarkers
present
early
disease.
In
recent
years,
various
nanomaterials‐based
methods
have
been
developed
address
this
issue,
including
time‐gated
wavelength‐differentiated
strategy
external
modulated
for
separation
minimize
interference
from
samples.
This
review
provides
a
comprehensive
overview
low‐background
luminescent
nanoparticles
(LBLNPs)‐enhanced
LFA
systems,
focusing
on
analyzing
underlying
mechanism
these
nanomaterials
improving
accuracy
LFAs
platform
diagnosis.
Representative
examples
selected
demonstrate
potential
detecting
disease‐associated
samples
blood,
urine,
saliva
et
al.
Finally,
unresolved
challenges
future
development
prospects
briefly
discussed.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
Developing
efficient
and
stable
near-infrared
emitters
related
to
Cr3+-pairs
for
advanced
optoelectronic
devices
remains
a
challenge
due
concentration
quenching
effects
unclear
luminescence
mechanisms.
In
this
study,
Cr3+
ions
are
incorporated
into
matrix
structure
consisting
of
ZnAl₂O₄
spinel
units
separated
by
11.312
Å,
effectively
restricting
energy
transfer
between
luminescent
centers
alleviating
effects.
Computational
analysis
identifies
the
lattice
positions
isolated
at
different
doping
levels,
providing
insights
their
spatial
distribution
local
structural
environments.
Photoluminescence
measurements
reveals
Cr3+-concentration-dependent
emission
broadening,
with
Cr3+-pair
band
peak
750
nm,
while
detailed
spectral
further
clarified
level
first
time.
Enhanced
material
performance
is
achieved
through
flux-assisted
synthesis,
reaching
high
external
quantum
efficiency
58.3%.
Consequently,
assembled
pc-LEDs
exhibit
minimal
roll-off
achieve
output
183
mW
650
mA,
demonstrating
potential
in
light
sources
night
vision
technology
application.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Prompt
and
reliable
bacterial
identification
antibiotic
susceptibility
testing
are
vital
for
combating
infections
drug
resistance.
Herein,
we
designed
a
bispecific
metabolic
monitoring
platform
that
targets
enzyme-catalyzed
biochemical
reactions
testing.
Specifically,
two
kinds
of
coreshell-structured
persistent
luminescence
nanoparticles
with
surface-confined
red
green
luminescence,
respectively.
The
were
functionalized
energy
acceptors
can
be
specifically
cleaved
by
enzymes.
amplified
the
Förster
resonance
transfer
(FRET)
efficacy
from
to
surface
acceptors,
even
though
diameter
exceeded
critical
size
FRET,
which
improved
sensitivity
enzyme
monitoring.
Due
differentiated
expression
secretion
enzymes,
different
species
bacteria
produced
discrepant
after
incubation
nanoprobes.
Machine
learning
models
trained
characteristic
patterns
unknown
identification.
was
realized,
overall
accuracy
reached
100%.
Moreover,
machine
model
could
identify
active
inactive
states
treated
antibiotics,
provided
prompt
convenient
method
determine
whether
susceptible
antibiotics.
This
study
provides
robust
monitor
metabolism
offers
promising
strategy
infection
treatment,
communication
monitoring,
pathogenicity
investigation.
Chemical Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Lanthanides
are
particularly
effective
in
their
clinical
applications
magnetic
resonance
imaging
and
diagnostic
assays.
They
have
open-shell
4f
electrons
that
give
rise
to
characteristic
narrow,
line-like
emission
which
is
unique
from
other
fluorescent
probes
biological
systems.
Lanthanide
luminescence
signal
offers
selection
of
detection
pathways
based
on
the
choice
ion
visible
near-infrared
with
long
lifetimes
lend
themselves
time-resolved
measurements
for
optical
multiplexing
schemes
novel
bioimaging
applications.
The
delivery
lanthanide
agents
cells
allows
localized
bioresponsive
activity
therapies.
Detection
region
spectrum
coupled
technological
advances
microscopies
opens
new
avenues
deep-tissue
surgical
interventions.
This
review
focuses
different
ways
can
be
exploited
nucleic
acid
enzyme
detection,
anion
recognition,
cellular
imaging,
tissue
photoinduced
therapeutic
We
focused
hierarchy
designs
include
luminescent
lanthanides
as
biology
considering
coordination
complexes,
multimetallic
systems
metal-organic
frameworks
nanoparticles
highlighting
strategies
downshifting,
upconversion
revealing
some
opportunities
challenges
offer
potential
further
development
field.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Abstract
Narrow‐band
red
phosphors
have
been
crucial
in
enabling
energy‐efficient
and
wide
color
gamut
display
technologies.
Developing
novel
with
narrower
FWHM
suitable
positions
is
still
an
urgent
demand.
Herein,
a
nanorod‐shaped
Nb
2
O
5
:Pr
3+
phosphor,
featuring
single
ultra‐narrow‐band
emission
at
612
nm
of
only
19
nm,
reported.
The
narrow‐band
associated
oxygen
vacancies,
which
can
influence
the
electron–hole
recombination
energy.
Besides,
intensity
PL
spectra
presents
anti‐thermal
properties
achieves
unexpected
12.5‐fold
enhancement
from
80
to
280
K.
Detailed
structural
analyses,
optical
measurements,
DFT
calculation
are
used
investigate
abnormal
photophysical
processes.
It
canbe
found
that
V
O1
has
lowest
E
form
0.70
eV
electron
localization
area
around
Pr
atom
enlarges
biggest
distortion
as
appears.
energy
transfer
vacancies
luminescent
center
accounts
for
large
enhancement.
At
last,
fabricated
transparent
screen
transparency
50%
high
purity
(98%),
LED
device
shows
gamut.
These
findings
advance
understanding
relationship
between
inspiring
more
design
phoshors
applications.
