Analytical Chemistry,
Journal Year:
2023,
Volume and Issue:
95(19), P. 7611 - 7619
Published: May 3, 2023
Mitochondrial
viscosity
affects
metabolite
diffusion
and
mitochondrial
metabolism
is
associated
with
many
diseases.
However,
the
accuracy
of
mitochondria-targeting
fluorescent
probes
in
measuring
unsatisfactory
because
these
can
diffuse
from
mitochondria
during
mitophagy
a
decreased
membrane
potential
(MMP).
To
avoid
this
problem,
by
incorporating
different
alkyl
side
chains
into
dihydroxanthene
fluorophores
(denoted
as
DHX),
we
developed
six
near-infrared
(NIR)
for
accurate
detection
viscosity,
sensitivity
to
targeting
anchoring
capability
increased
increasing
chain
length.
Among
them,
DHX-V-C12
had
highly
selective
response
variations
minimum
interference
polarity,
pH,
other
biologically
relevant
species.
Furthermore,
was
used
monitor
changes
HeLa
cells
treated
ionophores
(nystatin,
monensin)
or
under
starvation
conditions.
We
hope
that
strategy
based
on
length
will
be
general
analytes,
enabling
study
functions.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
61(14)
Published: Dec. 7, 2021
Abstract
Optical
imaging,
especially
fluorescence
and
photoacoustic
is
a
non‐invasive
imaging
approach
with
high
spatial
temporal
resolution
sensitivity,
compared
to
positron
emission
tomography
(PET)
or
magnetic
resonance
(MRI).
Due
the
merits
of
using
second
near‐infrared
(NIR‐II)
window,
like
deeper
penetration
depth,
signal‐to‐noise
ratio,
resolution,
low
tissue
damage,
researchers
have
devoted
great
effort
developing
contrast
agents
NIR‐II
absorption
emission.
In
this
Review,
we
summarize
recently
developed
organic
luminescent
materials,
ranging
from
small
molecules
conjugated
polymers.
Then,
systematically
introduce
engineering
strategies
describe
performance
classified
by
skeleton
cores.
Finally,
elucidate
challenges
prospects
these
dyes
for
potential
clinical
applications.
We
expect
our
summary
can
inspire
expand
spectrum
diverse
bioapplications.
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
51(2), P. 566 - 593
Published: Dec. 20, 2021
The
real-time,
dynamic
optical
visualization
of
lesions
and
margins
ensures
not
only
complete
resection
the
malignant
tissues
but
also
better
preservation
vital
organs/tissues
during
surgical
procedures.
Most
imaging
probes
with
an
"always-on"
signal
encounter
high
background
noise
due
to
their
non-specific
accumulation
in
normal
tissues.
By
contrast,
activatable
molecular
"turn
on"
signals
upon
reaction
targeted
biomolecules
that
are
overexpressed
cells,
offering
target-to-background
ratios
specificity
sensitivity.
This
review
summarizes
recent
progress
diagnosis.
design
principle
mechanism
discussed,
followed
by
specific
emphasis
on
applications
ranging
from
fluorescence-guided
surgery
endoscopy
tissue
biopsy.
Finally,
potential
challenges
perspectives
field
probe-enabled
discussed.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(6), P. 6850 - 6918
Published: March 2, 2022
Photoacoustic
(PA)
imaging
technology,
a
three-dimensional
hybrid
modality
that
integrates
the
advantage
of
optical
and
acoustic
imaging,
has
great
application
prospects
in
molecular
due
to
its
high
depth
resolution.
To
endow
PA
with
ability
for
real-time
visualization
precise
biomedical
diagnosis,
numerous
activatable
probes
which
can
specifically
alter
their
intensities
upon
reacting
targets
or
biological
events
interest
have
been
developed.
This
review
highlights
recent
developments
applications
including
detection
biotargets
events.
First,
generation
mechanism
signals
will
be
given,
followed
by
brief
introduction
contrast
agents
used
probe
design.
Then
we
particularly
summarize
general
design
principles
alteration
strategies
developing
probes.
Furthermore,
give
detailed
discussion
living
systems.
At
last,
current
challenges
outlooks
future
discussed.
We
hope
this
stimulate
new
ideas
explore
potentials
future.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(16), P. 5607 - 5651
Published: Jan. 1, 2023
Since
their
inception,
rhodamine
dyes
have
been
extensively
applied
in
biotechnology
as
fluorescent
markers
or
for
the
detection
of
biomolecules
owing
to
good
optical
physical
properties.
Accordingly,
they
emerged
a
powerful
tool
visualization
living
systems.
In
addition
fluorescence
bioimaging,
molecular
design
derivatives
with
disease
therapeutic
functions
(e.g.,
cancer
and
bacterial
infection)
has
recently
attracted
increased
research
attention,
which
is
significantly
important
construction
libraries
diagnostic
integration.
However,
reviews
focusing
on
integrated
strategies
dye-based
diagnosis
treatment
wide
application
are
extremely
rare.
this
review,
first,
brief
history
development
dyes,
transformation
from
bioimaging
therapy,
concept
optics-based
integration
its
significance
human
presented.
Next,
systematic
review
several
excellent
rhodamine-based
well
treatment,
Finally,
challenges
practical
future
outlook
clinical
translation
also
discussed.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(26)
Published: April 9, 2022
Activatable
phototheranostics
holds
promise
for
precision
cancer
treatment
owing
to
the
"turn-on"
signals
and
therapeutic
effects.
However,
most
activatable
phototheranostic
probes
only
possess
photodynamic
therapy
(PDT)
or
photothermal
(PTT),
which
suffer
from
poor
efficacy
due
deficient
cellular
oxygen
complex
tumor
microenvironment.
We
herein
report
a
dual-locked
probe
that
activates
near-infrared
fluorescence
(NIRF)
in
tumor,
triggers
PDT
response
tumor-periphery
biomarker,
switches
PTT
upon
detecting
tumor-core-hypoxia
biomarker.
This
PDT-PTT
auto-regulated
exhibits
complete
ablation
under
photoirradiation
of
single
laser
source
by
producing
cytotoxic
singlet
at
periphery
generating
hyperthermia
tumor-core
where
is
too
hypoxic
PDT.
represents
promising
molecular
design
approach
toward
precise
phototheranostics.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: July 2, 2022
It
is
highly
important
and
challenging
to
develop
donor-acceptor-donor
structured
small-molecule
second
near-infrared
window
(NIR-II)
dyes
with
excellent
properties
such
as
water-solubility
chem/photostability.
Here,
we
discovery
an
electron
acceptor,
6,7-di(thiophen-2-yl)-[1,2,5]thiadiazolo[3,4-g]quinoxaline
(TQT)
highest
stability
in
alkaline
conditions,
compared
conventional
NIR-II
building
block
benzobisthiadiazole
(BBT)
6,7-diphenyl-[1,2,5]
thiadiazolo[3,4-g]quinoxaline
(PTQ).
The
sulfonated
hydrophilic
dye,
FT-TQT,
further
synthesized
2.13-fold
increased
quantum
yield
than
its
counterpart
FT-BBT
BBT
acceptor.
FT-TQT
complexed
FBS
also
prepared
displays
a
16-fold
increase
fluorescence
intensity
alone.
demonstrates
real-time
cerebral
tumor
vessel
imaging
capability
µm-scale
resolution.
Dynamic
monitoring
of
vascular
disruption
after
drug
treatment
achieved
by
fluorescent
imaging.
Overall,
TQT
efficient
acceptor
for
designing
innovative
dyes.
engineering
strategy
provides
promising
approach
design
next
generation
fluorophores
which
open
new
biomedical
applications.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(19)
Published: Feb. 26, 2022
Small-molecule-based
second
near-infrared
(NIR-II)
activatable
fluorescent
probes
can
potentially
provide
a
high
target-to-background
ratio
and
deep
tissue
penetration.
However,
most
of
the
reported
NIR-II
small-molecule
exhibit
poor
versatility
owing
to
lack
general
stable
optically
tunable
group.
In
this
study,
we
designed
NIRII-HDs,
novel
dye
scaffold
optimized
for
probe
development.
particular,
NIRII-HD5
showed
best
optical
properties
such
as
proper
pKa
value,
excellent
stability,
brightness,
which
be
beneficial
in
vivo
imaging
with
contrast.
To
demonstrate
applicability
dye,
three
target-activatable
ROS,
thiols,
enzymes.
Using
these
probes,
not
only
realized
reliable
different
diseases
mouse
models
but
also
evaluated
redox
potential
liver
during
injury
fidelity.