Advanced Optical Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 29, 2024
Abstract
Stimulus‐responsive
multimodal
luminescence
(MML)
within
a
single
material
system
is
highly
desirable
for
anti‐counterfeiting
and
information
encryption
applications.
However,
achieving
adjustable
MML
unified
framework
challenging
due
to
the
distinct
responses
of
different
modes
common
external
stimulus.
In
work,
novel
approach
devised
regulating
aggregation
or
dispersion
state
carbon
dots
(CDs)
exhibit
responsive
MML,
including
fluorescence
(FL),
room
temperature
phosphorescence
(RTP),
chemiluminescence
(CL).
Specifically,
aggregation‐caused
quenching
CDs
(ACQCDs)
are
synthesized
via
one‐step
hydrothermal
method
using
levofloxacin.
These
ACQCDs
ACQ
significant
aggregation‐induced
color
change
effects.
When
interact
with
paper‐based
materials,
they
form
hydrogen
bonds,
establishing
high‐density
bond
network
that
induces
aggregation.
Upon
stimulation,
undergoes
dynamic
changes,
triggering
dispersion.
This
process
effectively
deactivates
nonradiative
defect
centers,
stabilizes
triplet
excitons,
promotes
simultaneous
tunable
FL,
RTP,
CL.
The
integration
stimulus
input
enables
creation
programmable
multi‐input
logic
gate,
offering
potential
encoded
Overall,
this
research
provides
valuable
insights
into
conduction
CDs,
thereby
advancing
utilization
nanomaterials
in
intelligent
technologies.
findings
pave
way
development
more
sophisticated
secure
measures
based
on
unique
luminescent
properties
CDs.
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Biomass-derived
carbon
dots
(BCDs)
have
attracted
considerable
attention
for
their
promising
attributes,
including
low
toxicity,
excellent
solubility,
biocompatibility,
and
eco-friendliness.
Their
rich
surface
chemistry
impressive
photoluminescent
properties
sparked
widespread
research
interest,
particularly
in
areas
such
as
sensing
biomedicine.
However,
the
potential
applications
of
BCDs
energy
sector,
especially
electrochemical
storage
batteries,
received
scant
review
focus.
This
article
systematically
consolidates
selection
sources,
synthesis
methods,
modification
strategies,
corresponding
characterization
techniques
BCDs.
Application
strategies
batteries
are
explored,
with
underlying
connection
between
role
structural
being
analyzed,
providing
comprehensive
insights
from
to
application.
Furthermore,
a
preliminary
discussion
is
initiated
on
current
limitations
material
regulation
design
within
research,
avenues
enhancement
proposed.
Journal of Nanoparticle Research,
Год журнала:
2025,
Номер
27(2)
Опубликована: Янв. 31, 2025
Abstract
Carbon
dots
represent
a
rapidly
advancing
and
expanding
research
field,
with
large
number
of
literature
reports
on
their
potential
technological
applications
including
those
relevant
to
food
safety.
In
this
article,
the
dot
samples
prepared
by
deliberate
chemical
functionalization
preexisting
small
carbon
nanoparticles
or
thermal
carbonization
various
organic
precursors
under
different
processing
conditions
are
highlighted
critiqued
for
similarities
differences
in
sample
structure-morphology
properties,
especially
antimicrobial
properties
safety–related
uses.
Also
discussed
representative
recent
examples
use
inactivate
foodborne
pathogens,
disrupt
biofilms
prevent
formation,
extend
shelf
life
products,
which
involve
antibacterial
mechanisms.
Some
perspectives
further
development
dots–based/derived
platform
related
excellent
application
opportunities
safety
provided.
Carbon
dots
(CDots)
are
classically
defined
as
small
carbon
nanoparticles
with
effective
surface
passivation,
which,
in
the
classical
synthesis,
has
been
accomplished
by
organic
functionalization.
CDot-like
nanostructures
could
also
be
produced
thermal
carbonization
processing
of
selected
precursors,
which
non-molecular
nanocarbons
resulting
from
embedded
remaining
species,
may
provide
passivation
function
for
nanocarbons.
In
this
work,
a
mixture
oligomeric
polyethylenimine
and
citric
acid
solid
state
was
used
efficient
microwave
irradiation
under
various
conditions
to
produce
dot
samples
different
nanocarbon
content.
The
were
characterized
terms
their
structural
morphological
features
regarding
similarity
or
equivalency
those
CDots,
along
significant
divergences.
Also
evaluated
optical
spectroscopic
properties
photoinduced
antimicrobial
activity
against
bacterial
species.
advantages
disadvantages
method
mimicking
synthesized
CDots
discussed.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 2, 2025
Abstract
This
study
presents
nanosized
metal‐organic
framwork
(nanoMOF)‐based
multifunctional
mixed‐matrix‐membranes
(MMMs)
and
composite
powders
as
extremely
sensitive
responder
materials
for
a
responder‐stimulus
based
multilevel
anti‐counterfeiting.
The
physicochemical
properties
of
nanoMOF‐based
composites
offer
wide
operational
range
anti‐counterfeiting
tags.
Nine
are
presented,
constituted
trivalent
lanthanide‐containing
nanoMOFs
([Ln
3
(bdc)
4.5
(H
2
O)
(dmf)
]
(nLn‐bdc);
bdc
2−
═benzene‐1,4‐dicarboxylate;
Ln═Eu,
Tb,
Yb)
polystyrene
sulfonate,
pyrolyzed
resorcinol‐formaldehyde
polysulfone
matrices.
These
inherit
distinct
properties,
their
combination
provides
visible
near‐infrared
light
emission
specific
conductivity
multiple
security
level
additive
interdependent
nature
features
in
the
developed
ensures
that
altering
one
feature
will
invariably
affect
others,
thereby
reinforcing
overall
integrity
resilience
mechanism.
Even
pitch‐black
nLn‐bdc
show
bright
to
range,
when
stimulated
by
UV‐light
being
suitable
black
materials.
work
also
describes
matrix‐based
active
contribution
an
tag,
instead
solely
used
carrier
feature‐bearing
nanoMOFs.
levels
different
marks
these
complicated
copy
including
proof‐of‐principle
experiment.
Molecules,
Год журнала:
2024,
Номер
29(17), С. 4211 - 4211
Опубликована: Сен. 5, 2024
Carbon
dots
(CDs)
have
garnered
extensive
interest
in
basic
physical
chemistry
as
well
biomedical
applications
due
to
their
low
cost,
good
biocompatibility,
and
great
aqueous
solubility.
However,
the
synthesis
of
multi-functional
carbon
has
always
been
a
challenge
for
researchers.
Here,
we
synthesized
novel
CDs
with
high
quantum
yield
28.2%
through
straightforward
hydrothermal
method
using
Diaminomaleonitrile
Boc-D-2,
3-diaminopropionic
acid.
The
size,
chemical
functional
group,
photophysical
properties
were
characterized
by
TEM,
FTIR,
XPS,
UV,
fluorescence.
It
was
demonstrated
this
study
that
prepared
yield,
excellent
photostability,
cytotoxicity.
Regarding
highly
water-soluble
property
CDs,
they
proven
possess
selective
sensitive
behavior
against
Cu2+
ions
(linear
range
=
0–9
μM
limit
detection
1.34
μM).
Moreover,
utilized
fluorescent
ink
anti-counterfeiting
measures.
Because
cytotoxicity
also
successfully
cell
imaging.
Therefore,
as-prepared
potential
fluorescence
sensing,
anti-counterfeiting,
bioimaging.
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 3, 2024
Abstract
Aggregation‐induced
emission
(AIE)
carbon
dot
(CDs)
in
solid
state
with
tunable
multicolor
emissions
have
sparked
significant
interest
multidimensional
anti‐counterfeiting.
However,
the
realization
of
solid‐state
fluorescence
(SSF)
by
AIE
effect
and
regulation
wavelength
is
a
great
challenge.
In
order
to
solve
this
dilemma,
method
prepare
multi‐color
CDs
wavelengths
ranging
from
bright
blue
red
employed.
Specifically,
using
thiosalicylic
acid
carbonyl
hydrazine
as
precursors,
can
be
accurately
adjusted
varying
reaction
temperature
150
230
°C
or
changing
molar
ratio
precursors
1:1
1:2.
Structural
analysis
theoretical
calculations
consistently
indicate
that
increasing
sp
2
domains
doping
graphite
nitrogen
both
cause
redshift
state.
Moreover,
multi‐dimensional
adjustable
wavelength,
application
fields
multi‐anti‐counterfeiting
encryption,
ink
printing,
screen
printing
demonstrated.
All
all,
work
opens
up
new
way
for
preparing
effect,
further
proposes
an
innovative
strategy
controlling
wavelengths.
