Nanomaterials,
Год журнала:
2023,
Номер
13(20), С. 2753 - 2753
Опубликована: Окт. 12, 2023
In
this
work,
we
employed
a
novel
microwave-assisted
synthesis
method
to
produce
nitrogen
and
boron
co-doped
carbon
dots
(B-N
CDs).
To
achieve
optimal
synthesis,
conducted
comprehensive
parameter
modulation
approach,
combining
various
temperatures,
times,
precursor
concentrations,
while
keeping
the
power
constant
at
150
W
pH
5.
Using
maximum
fluorescence
emission
as
our
response
variable,
best
conditions
were
identified
120
°C,
3
min,
concentration
of
1
mg/mL.
Characterization
using
field
scanning
electron
microscopy
revealed
these
CDs
have
spherical
morphology
with
an
average
size
10.9
±
3.38
nm.
Further
high-resolution
transmission
showed
interplanar
distance
0.23
nm,
which
is
in
line
prior
findings
that
present
0.21
nm
corresponding
(100)
plane
graphite.
Optical
properties
ascertained
through
UV-vis
absorption,
identifying
distinct
π-π*
n-π*
transitions.
Fluorescence
spectroscopy
highlighted
peak
375
when
excited
295
achieving
quantum
yield
56.7%.
Fourier-transform
infrared
Raman
analyses
confirmed
boronic
acid
amine
groups'
presence,
underscoring
graphitic
nature
core
co-doping
nitrogen.
These
empirical
observations
compared
theoretical
investigations
simulated
spectra,
proposing
potential
structure
for
CDs.
X-ray
photoelectron
further
endorsed
boron,
along
detection
specified
functional
groups.
All
characteristics
could
lend
nanomaterial
different
types
applications
such
fluorescent
probes
broad
range
analytes
cell
imaging.
Nano Letters,
Год журнала:
2024,
Номер
24(7), С. 2264 - 2272
Опубликована: Фев. 7, 2024
Developing
general
methods
to
fabricate
water-dispersible
and
biocompatible
fluorescent
probes
will
promote
different
biological
visualization
applications.
Herein,
we
report
a
metal-facilitated
method
ultrabright
green-emissive
nanodots
via
the
one-step
solvothermal
treatment
of
rose
bengal,
ethanol,
various
metal
ions.
These
metal-doped
show
good
water
dispersity,
ultrahigh
photoluminescence
quantum
yields
(PLQYs)
(e.g.,
PLQY
Fe-doped
(FeNDs)
was
∼97%),
low
phototoxicity.
Owing
coordination
effect
ions,
FeNDs
realize
glutathione
detection
with
outstanding
properties.
Benefiting
from
high
endoplasmic
reticulum
(ER)
affinity
chloride
group,
can
act
as
an
ER
tracker
long
imaging
capacity
(FeNDs:
>24
h;
commercial
tracker:
∼1
h)
superb
photostability
achieve
tissue
in
living
Arabian Journal of Chemistry,
Год журнала:
2023,
Номер
16(9), С. 105036 - 105036
Опубликована: Июнь 3, 2023
Endoplasmic
reticulum,
the
largest
cellular
organelle
where
protein
synthesis,
folding,
transportation,
and
maintenance
of
Ca2+
homeostasis
occurred,
is
sensitive
to
imbalance
its
inner
environment.
Particularly,
overproduction
reactive
oxygen
species
in
endoplasmic
reticulum
region
can
initiate
stress
tightly
related
many
metabolic
diseases.
In
this
respect,
retain
normal
function
it
highly
important
synthesize
antioxidants
with
reticulum-targeting
capability
for
precisely
clearing
excessively
generated
reticulum.
Herein,
we
demonstrate
preparation
Se-doped
carbon
nanodots
assays
HeLa
cells
as
well
vivo
tests
mice
have
shown
that
prepared
significantly
eliminate
both
•OH
O2•−.
Experimental
results
declared
fabricated
powerful
scavenging
capabilities
toward
O2•-,
low
cytotoxicity
targetability
be
utilized
protect
against
raised
levels
What's
more,
effectively
alleviated
phorbol
12-myristate
13-acetate
induced
ear
inflammation
live
mice.
International Journal of Coal Preparation and Utilization,
Год журнала:
2025,
Номер
unknown, С. 1 - 18
Опубликована: Янв. 15, 2025
Sodium
carbonate
(Na2CO3)
was
employed
to
thermally
modify
the
fly
ash
at
elevated
temperatures.
The
modified
subjected
characterization
validate
its
enhanced
adsorption
capacity.
Moreover,
in
contrast
conventional
methods
such
as
static,
stirring,
and
oscillation,
an
ultrasound-assisted
approach
adopted
facilitate
of
Cu2+
by
thermal
(TFA).
A
comprehensive
set
single-factor
experiments
orthogonal
were
conducted
investigate
influence
six
common
factors
on
adsorption.
optimal
conditions
within
experimental
range
determined
follows:
ultrasound
time
40
minutes,
temperature
40°C,
power
100W,
pH
value
5,
TFA
dosage
0.50
g/L,
initial
concentration
50
mg/L.
Under
these
optimized
conditions,
capacity
reached
13.64
mg/g.
This
study
investigated
modification
methods,
mechanisms,
relation
adsorption,
providing
a
valuable
basis
reference
for
application
field
