Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
Unconventional
fluorescent
polymers
are
attracting
increasing
attention
because
of
their
excellent
biocompatibility
and
wide
applications.
However,
these
typically
exhibit
weak
long‐wavelength
emission.
Herein,
three
novel
aliphatic
linear
polyphosphate
esters
prepared
via
a
one‐pot
polycondensation
reaction.
Such
can
generate
strong
blue,
green,
yellow,
red
fluorescence
under
different
excitations.
Experimental
theoretical
results
showed
that
the
cluster
C═C
phosphate
ester
groups
attracted
negative
charge
isolated
functional
groups,
alkane
chains
hydrogen
atoms
also
provided
for
spatial
electronic
communication.
Then,
intrinsic
arises
from
charge‐transfer‐induced
enhanced
Additionally,
show
potential
applications
in
film,
ion
detection,
bacteria
imaging,
visualization
NaCl
crystallization
process.
This
work
provides
universal
design
strategy
developing
emissive
gains
new
insight
into
emission
mechanisms.
Biomacromolecules,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Fluorescent
polymeric
thermometers,
despite
their
noninvasive
detection
and
rapid
response
for
intracellular
temperature
monitoring,
face
challenges
in
achieving
excellent
biocompatibility
high
sensitivity.
Herein,
we
synthesized
a
water-soluble
unconventional
temperature-sensitive
fluorescent
polymer
(P2)
through
terminally
grafting
poly(N-vinylcaprolactam)
(PNVCL)
onto
hyperbranched
polyborosiloxane
(P1).
The
P2
exhibited
efficient
red-light
emission
good
photostability.
Particularly,
when
the
rises,
PNVCL
units
transform
from
hydrophilic
to
hydrophobic,
resulting
dislocation
of
local
segments
P2,
suppressing
radiative
transitions
simultaneously
weakening
its
through-space
conjugation,
further
reducing
fluorescence
intensity,
endowing
with
temperature-sensing
sensitivity
10.06%
°C-1.
Finally,
real-time
monitoring
variation
was
conducted.
This
work
not
only
develops
promising
thermochromic
materials
sensing
but
also
provides
insight
into
mechanism
polymers.
Chemical Communications,
Journal Year:
2023,
Volume and Issue:
59(24), P. 3558 - 3561
Published: Jan. 1, 2023
By
using
the
intrinsic
nonconventional
photoluminescence
(n-PL)
of
organo-siloxane
and
synergetic
effect
surfactant
mixture,
we
report
strong
n-PL
from
aqueous
colloids
containing
a
nonionic
silicone
mixed
with
traditional
anionic
surfactant,
an
unprecedently
high
fluorescence
quantum
yield
up
to
85.58%.
Biomacromolecules,
Journal Year:
2024,
Volume and Issue:
25(4), P. 2635 - 2644
Published: March 13, 2024
Developing
nonconjugated
materials
with
large
Stokes
shifts
is
highly
desired.
In
this
work,
three
kinds
of
hyperbranched
aggregation-induced
emission
(AIE)
polymers
tunable
n/π
electronic
effects
were
synthesized.
HBPSi-CBD
contains
alkenyl
groups
in
the
backbone
and
possesses
a
promoted
n−π*
transition
red-shifted
wavelength
shift
186
nm.
Experiments
theoretical
simulations
confirmed
that
planar
π
electrons
are
responsible
for
due
to
strong
through-space
n···π
interactions
restricted
motions.
Additionally,
designed
could
be
utilized
as
an
ROS
scavenger
after
coupling
l-methionine.
The
HBPSi-Met
exhibits
remarkable
scavenging
properties
capacity
77%.
This
work
not
only
gains
further
insight
into
structure–property
relationship
AIE
but
also
provides
promising
ROS-scavenging
biomaterial
treatment
ROS-related
diseases.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(13), P. 5240 - 5240
Published: July 6, 2023
Nonconventional
luminescent
materials
(NLMs)
which
do
not
contain
traditional
aromatic
chromophores
are
of
great
interest
due
to
their
unique
chemical
structures,
optical
properties,
and
potential
applications
in
various
areas,
such
as
cellular
imaging
sensing.
However,
most
reported
NLMs
show
weak
or
no
emission
dilute
solutions,
severely
limits
applications.
In
this
work,
dynamic
hydrogen
bonds
were
utilized
design
with
efficient
solutions.
To
further
validate
the
results,
polymers
P1
P2
successfully
prepared
investigated.
It
was
found
that
luminescence
quantum
efficiency
at
a
concentration
0.1
mg/mL
water
solution
8.9
0.6%,
respectively.
The
high
can
be
attributed
fact
polymer
has
more
intra-
intermolecular
other
short
interactions
than
allowing
achieve
through-space
conjugation
effect
increase
degree
system
conjugation,
restrict
molecular
motion,
decrease
nonradiative
transitions,
effectively
improve
luminescence.
addition,
exhibits
characteristics
clustering-triggered
emission,
excitation
wavelength-dependent
concentration-dependent
fluorescence
excellent
photobleaching
resistance,
low
cytotoxicity,
selective
recognition
Fe3+.
present
study
investigates
manipulation
properties
solutions
through
modulation
bonds.
This
approach
serve
semi-empirical
technique
for
designing
building
innovative
times
ahead.
Langmuir,
Journal Year:
2023,
Volume and Issue:
39(34), P. 12053 - 12062
Published: Aug. 18, 2023
Biocompatible
polymers
with
nontraditional
intrinsic
luminescence
(NTIL)
possess
the
advantages
of
environmental
friendliness
and
facile
structural
regulation.
To
regulate
emission
wavelength
NTIL,
alkane
chain
lengths
hyperbranched
polysiloxane
(HBPSi)
are
adjusted.
Optical
investigation
shows
that
HBPSi
is
closely
related
to
lengths;
namely,
short
chains
will
generate
relatively
long-wavelength
emission.
Electronic
communication
among
functional
groups
responsible
for
In
a
concentrated
solution,
molecules
aggregate
together
due
strong
hydrogen
bond
amphiphilicity,
in
so
close
their
electron
clouds
overlapped
spatial
electronic
delocalizations.
shorter
larger
delocalizations
emit
longer-wavelength
emissions.
Moreover,
these
show
excellent
applications
fabrication
fluorescent
films
chemical
sensing.
This
work
could
provide
strategy
regulating
wavelengths
unconventional
polymers.
