Sulfur‐Doped Carbonized Polymer Dots: A Biocompatible Photocatalyst for Rapid Aqueous PET‐RAFT Polymerization
Yue Yu,
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Songyuan Tao,
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Qingsen Zeng
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et al.
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
ABSTRACT
To
achieve
the
target
of
carbon
neutrality,
it
is
crucial
to
develop
an
efficient
and
green
synthesis
methodology
with
good
atomic
economy
sufficient
utilization
energy
sustainable
development.
Photoinduced
electron
transfer
reversible
addition–fragmentation
chain‐transfer
(PET‐RAFT)
polymerization
a
precise
for
constructing
polymers
well‐defined
structures.
However,
conventional
semiconductor‐mediated
PET‐RAFT
still
has
considerable
limitations
in
terms
efficiency
as
well
environment.
Herein,
sulfur‐doped
carbonized
polymer
dots
(CPDs)
were
hydrothermally
synthesized
catalysis
aqueous
at
unprecedented
highest
propagation
rate
5.05
h
−1
.
The
resulting
have
well‐controlled
molecular
weight
narrow
dispersion
(
Ð
<
1.10).
Based
on
optoelectronic
characterizations,
we
obtained
insights
into
photoinduced
process
proposed
mechanism
CPD‐mediated
polymerization.
In
addition,
as‐synthesized
CPDs
also
demonstrated
be
suitable
wide
range
light
sources
(blue/green/solar
irradiation),
numerous
monomers,
low
catalyst
loading
(low
0.01
mg
mL
),
multiple
polar
solvent
environments,
all
which
allowed
efficiencies
much
higher
than
those
existing
methods.
Finally,
confirmed
non‐cytotoxic
catalyzed
successfully
cell
culture
media,
indicating
broad
prospects
biomedical
fields.
Language: Английский
Developing dual‐state ultra‐efficient emissive carbon dots as internal and external artificial antenna of chloroplasts to enhance plant‐photosynthesis
Aggregate,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 19, 2024
Abstract
Introducing
fluorescent
nanomaterials
as
artificial
antennas
of
chloroplasts
offers
a
promising
approach
to
enhancing
light
harvesting
in
photosynthesis.
However,
this
technology
is
limited
by
the
dependence
fluorescence
efficiency
on
dispersed
states
that
cannot
enable
inside
and
outside
leaves
play
an
antenna
role.
Here,
we
developed
solution
solid
dual‐state
ultra‐efficient
blue
emissive
carbon
dots
(DuB
2
‐CDs)
regulating
content
graphitic‐N,
surface
hydroxyl
groups.
C–Si
bonds
based
four‐component
microwave
synthesis.
The
as‐prepared
DuB
‐CDs
showed
intense
emission
aqueous
state,
with
absolute
photoluminescence
quantum
yields
84.04%
95.69%,
respectively.
These
features
guaranteed
internal
infiltrating
mesophyll
system)
external
remaining
leaves)
can
simultaneously
enhance
solar
energy
utilization
chloroplasts.
Compared
control
groups
without
use
only,
foliar
application
substantially
enhanced
electron‐transport
rate,
net
photosynthesis
psbA
gene
expression,
NADPH
production,
other
plant
physiological
parameters
living
during
This
work
provided
strategy
for
realizing
CDs
while
maximizing
plant‐photosynthesis
augmentation.
Language: Английский
Self-Assembly of Polymers and Their Applications in the Fields of Biomedicine and Materials
Polymers,
Journal Year:
2024,
Volume and Issue:
16(15), P. 2097 - 2097
Published: July 23, 2024
Polymer
self-assembly
can
prepare
various
shapes
and
sizes
of
pores,
making
it
widely
used.
The
complexity
diversity
biomolecules
make
them
a
unique
class
building
blocks
for
precise
assembly.
They
are
particularly
suitable
the
new
generation
biomaterials
integrated
with
life
systems
as
they
possess
inherent
characteristics
such
accurate
identification,
self-organization,
adaptability.
Therefore,
many
excellent
methods
developed
have
led
to
practical
results.
At
same
time,
development
advanced
science
technology
has
also
expanded
application
scope
synthetic
polymers.
By
utilizing
this
technology,
materials
properties
be
prepared
applied
in
field
tissue
engineering.
Nanomaterials
transparent
conductive
fields
electronic
displays
smart
glass.
Multi-dimensional,
controllable,
multi-level
between
nanostructures
been
achieved
through
quantitative
control
polymer
dosage
combination,
chemical
modification,
composite
methods.
Here,
we
list
classic
applications
natural-
artificially
synthesized
biomedicine
materials,
introduce
cutting-edge
technologies
involved
these
applications,
discuss
in-depth
advantages,
disadvantages,
future
directions
each
type
self-assembly.
Language: Английский
Bismuth nanocluster loaded on N-doped porous carbon with “memory catalysis” effect for efficient photocatalytic H2 generation and uranium(VI) reduction
Weidi Qin,
No information about this author
Yang Xiao,
No information about this author
Chunlei Zhang
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
490, P. 151511 - 151511
Published: April 21, 2024
Language: Английский
Thermally Activated Delayed Fluorescence (TADF) Carbonized Polymer Dots for Efficient Red-Light-Induced Reversible Deactivation Radical Polymerization
Yang Xiao,
No information about this author
Wanchao Hu,
No information about this author
Bei Liu
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et al.
Macromolecules,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 22, 2024
Thermally
activated
delayed
fluorescence
(TADF)
carbon
dots
(CDs)
have
generated
interest
due
to
their
ability
capture
singlet
and
triplet
excitons
for
efficient
emission.
However,
there
are
still
challenges
in
achieving
high
photocatalytic
efficiency
traditional
TADF
CDs
prepared
by
matrix-confinement
strategies.
Herein,
we
propose
a
facile
one-pot
solvothermal
synthesis
strategy
of
matrix-free
carbonized
polymer
(CPDs)
with
an
absorption
wavelength
up
the
red-light
region
long
lifetime
7.66
μs
DMSO.
The
unprecedented
high-efficiency
CPDs
as
photocatalyst
both
organic
aqueous
solvents
has
been
demonstrated
first
time
red-light-triggered
photoinduced
electron/energy
transfer–reversible
addition–fragmentation
chain
transfer
(PET-RAFT)
polymerization
atom
radical
(photo-ATRP),
monomer
conversion
(>90%)
narrow
dispersity
(Mw/Mn
<
1.20).
In
addition,
designed
also
successfully
utilized
inverse
miniemulsion
PET-RAFT
system,
expanding
application
scope
reversible
deactivation
(photo-RDRP).
This
work
offers
unique
avenue
designing
regulating
intersystem
crossing
(ISC)
reverse
(RISC)
processes
achieve
CD
photocatalysts
long-lived
excited
states
effectively
photocatalyzed
RDRP.
Language: Английский