Ether Rhodamines with Enhanced Hydrophilicity, Fluorogenicity, and Brightness for Super-Resolution Imaging
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
ABSTRACT
Rhodamine
dyes
are
widely
used
fluorophores
in
super-resolution
fluorescence
imaging
due
to
their
exceptional
optical
properties
and
“aggregation-disaggregation”
induced
fluorogenic
activation.
However,
excessive
lipophilicity
often
reduces
brightness
aqueous
environments
causes
off-target
staining,
limiting
effectiveness
high-resolution
imaging.
To
address
these
challenges,
we
introduce
an
ether-decorated
N-terminal
modification
strategy
for
rhodamine
silicon-rhodamine
(Si-rhodamine),
replacing
conventional
N-alkyl
groups.
The
ether
chains
enhance
water
solubility,
decrease
aggregate
size,
improve
fluorogenicity
across
a
wide
concentration
range.
Their
flexible,
hydrophilic
structure
forms
protective
shield
around
the
xanthene
core,
minimizing
dye-water
interactions
reducing
quenching.
Additionally,
inductive
effect
of
decreases
electron-donating
strength
amino
groups,
suppressing
quenching
caused
by
twisted
intramolecular
charge
transfer
(TICT).
These
modifications
collectively
increase
quantum
yields
ER
ESiR
from
0.35
0.19
(for
tetraethyl-substituted
analogs)
0.70
0.41,
respectively.
Probes
derived
exhibit
outstanding
fluorogenicity,
enhanced
signal-to-noise
ratios,
improved
resolution
complex
environments,
demonstrating
superior
performance
advanced
techniques
such
as
structured
illumination
microscopy
(SIM),
stimulated
emission
depletion
(STED)
microscopy,
single-molecule
localization
(SMLM).
This
work
introduces
innovative
fluorophore
design,
offering
significant
advancements
applications.
Язык: Английский
Designing malachite green derivatives to optimize fluorogen-activating protein pairs for rapid PAINT super-resolution imaging in living cells
Chinese Chemical Letters,
Год журнала:
2025,
Номер
unknown, С. 110980 - 110980
Опубликована: Фев. 1, 2025
Язык: Английский
Dibutylated Si-fluorescein: enhanced hydrophobicity for fluorogenic labeling in vivo.
Dyes and Pigments,
Год журнала:
2025,
Номер
unknown, С. 112841 - 112841
Опубликована: Апрель 1, 2025
Язык: Английский
Azetidinyl Malachite Green: a Superior Fluorogen-Activating Protein Probe for Live-cell and Dynamic SIM Imaging
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Azetidinyl
Malachite
Green
(Aze-MG)
enhances
the
brightness
and
photostability
of
MG-FAP
system
by
suppressing
TICT
effect,
enabling
stable
dynamic
super-resolution
imaging
through
a
buffering
strategy.
Язык: Английский
Super-resolution imaging of cellular pseudopodia dynamics with a target-specific blinkogenic probe
Chinese Chemical Letters,
Год журнала:
2024,
Номер
unknown, С. 110643 - 110643
Опубликована: Ноя. 1, 2024
Язык: Английский
Recent advances in single fluorescent probes for monitoring dual organelles in two channels
Xiu‐Zhi Yang,
Shankun Yao,
Jisong Wu
и другие.
Smart Molecules,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 15, 2024
Abstract
Organelles
are
specialized
areas
where
cells
perform
specific
processes
necessary
for
life
and
actively
communicate
with
each
other
to
keep
the
whole
cell
functioning.
Disorders
of
organelle
networks
associated
multiple
pathological
processes.
However,
clearly
intuitively
visualizing
highly
dynamic
interactions
between
ultrafine
organelles
is
challenging.
Fluorescence
imaging
technology
provides
opportunities
due
distinct
advantages
facile,
non‐invasiveness
detection,
making
it
particularly
well‐suited
applications
in
uncovering
mysterious
veil
interactions.
Regrettably,
lack
ideal
fluorescence
agents
has
always
been
an
obstacle
intricate
behaviors
organelles.
In
this
review,
we
provide
a
systematic
discussion
on
existing
dual‐color
dual‐targetable
molecular
sensors
used
monitoring
interactions,
focus
their
targeting
strategies,
mechanisms
biological
applications.
Additionally,
current
limitations
future
development
directions
probes
dual‐emissives
briefly
discussed.
This
review
aims
guidance
researchers
develop
more
improved
studying
biomedical
field.
Язык: Английский