ACS Applied Bio Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Eu3+-doped
silicate
phosphors
are
gaining
significant
attention
for
bioimaging
and
scaffold
development
due
to
their
narrow
red
emission,
high
color
purity,
quantum
yield
(QY),
large
Stokes
shift.
These
offer
several
advantages
over
conventional
imaging
techniques,
such
as
good
selectivity
sensitivity,
simpler
operation,
reduced
data
acquisition
time,
cost-effectiveness,
nondestructive
imaging.
The
luminescence
properties
of
these
can
be
enhanced
by
modifying
synthesis
methods,
annealing
conditions,
hosts
introducing
multiple
dopants.
This
study
explores
a
novel
approach
improving
the
crystal
structures
Eu3+
doped
calcium
magnesium
(CMS:Eu3+)
in
vitro
potential
development.
synthesized
diopside
(CaMgSi2O6:xEu3+;
x
=
10,
15,
20
mol
%),
merwinite
(Ca3MgSi2O8:15
%
Eu3+),
akermanite
(Ca2MgSi2O7:15
Eu3+)
phases
CMS:Eu3+
exhibit
distinct
coordination
environments
Eu3+,
leading
unique
excitation
wavelength
tunability
from
ultraviolet
(UV)
visible
region,
emission
intensity,
decay
QY
>
40%,
purity
>83%.
A
comparative
analysis
structural
photoluminescence
reveals
impact
phase
modifications
on
optimizing
dopant
concentration.
results
indicate
that
CaMgSi2O6:
15
is
most
efficient
phosphor
bioimaging,
with
highest
relative
intensity
time
∼2
ms,
∼
77%,
∼86%.
morphology
Ca3MgSi2O8:15
%Eu3+
Ca2MgSi2O7:15
also
supports
cell
adhesion,
suggesting
In
brief,
highlights
concentrations.
International Journal of Molecular Sciences,
Journal Year:
2021,
Volume and Issue:
22(15), P. 7892 - 7892
Published: July 23, 2021
Although
some
metallic
nanoparticles
(NPs)
are
commonly
used
in
the
food
processing
plants
as
nanomaterials
for
packaging,
or
coatings
on
handling
equipment,
little
is
known
about
antimicrobial
properties
of
palladium
(PdNPs)
and
platinum
(PtNPs)
their
potential
use
industry.
In
this
study,
common
food-borne
pathogens
Salmonella
enterica
Infantis,
Escherichia
coli,
Listeria
monocytogenes
Staphylococcus
aureus
were
tested.
Both
NPs
reduced
viable
cells
with
log10
CFU
reduction
0.3–2.4
0.8–2.0
(PtNPs),
average
inhibitory
rates
55.2–99%
PdNPs
83.8–99%
PtNPs.
However,
both
seemed
to
be
less
effective
biofilm
formation
its
reduction.
The
most
concentrations
evaluated
22.25–44.5
mg/L
50.5–101
Furthermore,
interactions
tested
bacterial
cell
visualized
by
transmission
electron
microscopy
(TEM).
TEM
visualization
confirmed
that
entered
bacteria
caused
direct
damage
walls,
which
resulted
disruption.
vitro
cytotoxicity
individual
was
determined
primary
human
renal
tubular
epithelial
(HRTECs),
keratinocytes
(HaCat),
dermal
fibroblasts
(HDFs),
kidney
(HEK
293),
coronary
artery
endothelial
(HCAECs).
Due
no
acute
cytotoxicity,
types
could
potentially
fight
pathogens.
New Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
47(44), P. 20286 - 20297
Published: Jan. 1, 2023
This
work
demonstrated
the
usability
of
spinel
for
a
color
tunable
phosphor
triggered
by
compositional
modulation
in
Al/Ga
ratio
and
laser
power
along
with
feasibility
non-contact
optical
thermometry.
Materials Advances,
Journal Year:
2023,
Volume and Issue:
4(22), P. 5594 - 5604
Published: Jan. 1, 2023
Deep
red
emitting
Y
2
Zr
O
7
:Eu
3+
(YZOE)
pyrochlore
nanocrystals
with
very
high
color
purity,
excellent
thermal
stability
and
a
photoluminescence
quantum
yield
(∼88%)
is
synthesized
for
tunable
white
LEDs
indoor
plant
growth.
RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(44), P. 31151 - 31166
Published: Jan. 1, 2023
This
paper
explores
the
impact
of
dysprosium
(Dy)
doping
on
structural,
optical,
and
photocatalytic
properties
tin
oxide
(SnO
2
)
thin
films
fabricated
via
spray
pyrolysis.
ChemPhotoChem,
Journal Year:
2023,
Volume and Issue:
8(2)
Published: Nov. 3, 2023
Abstract
Remarkable
enhancement
in
green
and
red
upconversion
(UC)
emissions
by
124
88
%,
respectively
was
achieved
whereas
down‐conversion
(DC)
luminescence
NIR‐II
region
(~1540
nm)
improved
20
%
Th
4+
co‐doped
YF
3
:
Yb
3+
,Er
nanocrystalline
particles.
The
same
is
ascribed
to
lowering
of
symmetry
via
formation
asymmetric
Er−F
bonds
less
symmetric
Y
sites
due
distortions
on
co‐doping.
Benefiting
from
the
distinct
temperature
response
stark
sublevels
4
S
3/2
F
9/2
states,
we
have
proposed
a
strategy
for
intensity
ratios
(LIR)
based
thermometry
involving
thermally
coupled
(TCL)
sub‐levels.
This
can
be
promising
more
accurate
read‐out
at
cryogenic
temperatures
(~
−193
°C).
Using
same,
high
r
values
0.0139
K
−1
(80
K)
0.682
were
obtained
(1)
/
(2)
→
I
15/2
transitions.
Higher
0.226
2.627
%K
sensitivity
than
that
reported
host.
We
believe
this
work
with
UC
addition
will
boon
temperature‐sensing.
