Hydrogen Bond‐Mediated Self‐Assembly of Carbon Dots Enabling Precise Tuning of Particle and Cluster Luminescence for Advanced Optoelectronic Applications
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
The
effective
control
over
the
self-assembly
process
of
carbon
dots
(CDs)
and
their
cluster
luminescence
in
aggregated
state
is
paramount
significance
challenge.
This
study,
for
first
time,
systematically
explores
photoluminescent
behavior
CDs
state,
which
less
understood
compared
to
discrete
state.
By
investigating
effects
concentration
solvent
environment,
it's
demonstrated
that
could
exhibit
dual
emission
properties,
shifting
from
blue
particle
emissions
red
as
they
aggregate.
key
this
tunable
lies
hydrogen
bonding,
drives
modulates
photo
physical
properties.
These
findings
reveal
through
precise
aggregation,
can
be
engineered
advanced
optoelectronic
applications,
including
light-emitting
diodes
(LEDs),
secure
information
encryption,
fingerprint
authentication.
report
not
only
deepens
understanding
underlying
mechanisms
governing
CDs'
but
also
introduces
a
novel
approach
exploiting
unique
properties
technological
innovation.
Язык: Английский
Full fluorescence paper of Eu3+– induced diblock copolymer nanoaggregates for negative multiple mode photon information storage and encryption
Applied Materials Today,
Год журнала:
2024,
Номер
40, С. 102416 - 102416
Опубликована: Сен. 7, 2024
Язык: Английский
The Optical Encoder Based on Mechanoluminescent Materials and Application in Dual‐Key Encryption
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
Optical
information
encryption
is
an
effective
security
strategy
currently
used
to
protect
data
and
prevent
leakage.
However,
the
optical
technology
based
on
mechanoluminescent
(ML)
materials
faces
challenges
of
single
mode
lack
systematic
dual‐key
decryption
strategies.
In
this
study,
a
three‐layer
structure
encoder
proposed
using
porous
ML
material
as
luminescent
layer,
quartz
transparent
tube
with
pressure‐sensing
capabilities
stress‐loading
photodetector
recognition
layer.
A
system
evolution
mechanism
Ba‐Gua
constructed.
The
encoding
process
completed
within
micro
darkroom
fabricated
3D
printing
technology.
This
incorporates
virtual
position
in
conjunction
trigram
orientation,
requiring
two
keys
for
correct
decryption:
“Combination
Relative
Intensity
Ratio”
“Virtual
Position
Space
Code”.
By
linking
emission
spectrum
information,
dynamic,
rewritable
hybrid
digital
Chinese
character
established.
offer
new
directions
concealing
confidential
multidimensional
applications.
Язык: Английский
Carbon dots derived from organic drug molecules with improved therapeutic effects and new functions
Nanoscale,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
article
reviews
the
functions
of
drug-derived
CDs
compared
with
their
precursors
and
demonstrates
broad
application
prospects
in
biomedicine.
Язык: Английский
Elementally Doped Carbonized Polymer Dots: Control of Optical Properties and Their Versatile Applications
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 5, 2025
Abstract
Carbonized
polymer
dots
(CPDs)
are
a
class
of
luminescent
nanomaterials
formed
through
cross‐linking
and
polymerization.
Owing
to
their
excellent
biocompatibility,
ease
synthesis,
good
aqueous
dispersion,
high
chemical
stability,
unique
structure,
modifiable
surface
properties,
CPDs
have
attracted
significant
attention.
However,
pure
exhibit
certain
limitations
in
terms
optical
performance,
particularly
fluorescence
intensity,
phosphorescence
emission
wavelength
tunability,
which
may
not
meet
the
requirements
specific
applications.
To
address
these
limitations,
doping
with
various
elements,
such
as
nitrogen
(N),
sulfur
(S),
phosphorus
(P)
modify
band
structure
functionalization
can
significantly
enhance
properties
photochemical
thereby
expanding
application
potential.
This
paper
reviews
main
synthesis
methods
for
elementally
doped
CPDs,
examines
effects
different
types
elemental
on
explores
promising
applications
optoelectronic
devices,
sensors,
catalysis.
Finally,
recent
advancements
summarized,
along
future
development
directions
challenges.
Язык: Английский
Fluorine–Nitrogen Codoped Carbon Dots for Visualization Imaging of Nucleic Acids via Two-Photon Fluorescence Lifetime Microscopy
Analytical Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
Fluorescence
imaging
is
a
key
tool
for
visualizing
the
morphology
and
dynamics
of
nucleic
acids
(DNA
RNA)
in
living
cells
to
understand
their
role
regulating
growth,
development,
reproduction
organisms.
However,
effective
probes
capable
simultaneously
targeting
both
DNA
RNA,
as
well
tools
analyzing
distribution
relative
ratios
organisms,
are
currently
lacking.
Therefore,
fluorine-nitrogen
codoped
carbon
dots
with
two-photon
absorption
(F-NCDs)
were
synthesized
by
hydrothermal
method
exhibited
stable
fluorescence,
good
biocompatibility,
fluorescence
lifetime
sensitive
RNA).
The
as-prepared
F-NCDs
act
probe
quantify
distinguish
RNA
nucleus
via
multicolor
microscopy
(TP-FLIM).
was
particularly
tracking
changes
DNA/RNA
plant
cell
nuclei
(onion
root
tips)
during
different
division
stages
distinguishing
animal
tissues
(zebrafish).
development
provides
insights
into
preparation
offers
an
visualization
TP-FLIM
dynamically
study
function
genetic
material
various
life
activities.
Язык: Английский
High-Temperature Phosphorescence of Carbon Dots by a Synergistic Locking Strategy
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Phosphorescent
materials
have
potential
applications
in
anticounterfeiting
and
optoelectronics,
but
their
luminescence
is
generally
quenched
at
elevated
temperatures.
Herein,
a
synergistic
locking
strategy
has
been
developed
to
achieve
high-temperature
phosphorescence
(HTP)
of
carbon
dot
(CD)
composites.
Impressively,
the
CD
composites
retain
over
90%
75%
intensity
temperatures
up
110
170
°C,
respectively.
Even
higher
than
persists
for
5
s,
demonstrating
remarkable
stabilization
triplet
excitons.
Experimental
theoretical
results
revealed
that
this
outstanding
thermal
resistance
stems
from
effect
interlayer
covalent
bridges
multiple
hydrogen
bonding
interface.
Furthermore,
by
adjusting
degree
graphitization,
multicolor
HTP
ranging
blue
red
achieved
This
work
not
only
provides
facile
versatile
way
construct
CD-based
also
expands
heat-resistant
display
environments.
Язык: Английский
F and Na Co-doped carbon dots with enhanced afterglow emission for applications in fingerprint recognition and information encryption
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy,
Год журнала:
2025,
Номер
339, С. 126259 - 126259
Опубликована: Апрель 17, 2025
Язык: Английский
Carbon Dots with Polycyclic Dipeptide Structure Surpass Natural Hydrolase Performance
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
Abstract
Nature
enzymes
always
suffer
from
high
costs,
harsh
conditions,
and
instability,
while,
artificial
one
offers
possibilities
for
addressing
current
challenges
plays
a
significant
role
in
future
industrial
production.
Here,
the
carbon
dots
(CDs),
with
well‐defined
polycyclic
dipeptide
structures,
are
reported
to
exhibit
superior
hydrolase‐like
catalytic
performance
beyond
those
of
natural
enzymes.
Compared
lipase,
obtained
CDs
not
only
activity
(2.85
times
increase
V
m
)
but
also
have
broader
range
substrate
concentrations
(0–8.0
types
(fatty
ester,
aromatic
phosphate
ester),
along
simpler
conditions
stability.
The
highly
efficient
is
attributed
low
activation
energy
reaction
(E
:
13.74
kJ
mol
−1
strong
adsorption
substrates.
results
theoretical
calculations
comparative
experiments
demonstrate
that
sites
located
on
nitrogen
atoms
dipeptide.
Furthermore,
membrane
integrated
(membrane‐catalyst)
constructed,
through
which
instantaneous
hydrolysis
esters
can
be
realized.
This
work
provides
new
insight
into
enzyme‐like
mechanisms
approach
designing
materials
performance.
Язык: Английский